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About Charles C. Jones
(Top Expert on this page)

Expertise
Let Me help you with your problems with single phase and three phase electric motors. I can tell you how to troubleshoot your motor problems. From simple testing of capacitors, how to test your windings, replacing bearings, and general maintance. Before we go any further, remember these words of advice: Disconnect the power before you do anything! Please limit your questions to electric motors and there immediate components. I review each question, and if I can answer or help, then I will. If you receive a rejection, it means it is out of my expertise, and just do not have the answer. I'll be waiting for your question, and see if I can help you. Thanks for using AllExperts!

Experience
I have 30 years experience in the repair of electric motors and related equipment. I am a master machinist in the field of motor repair. I have been employed with my company for 27 years. When you ask your question, give me all the information you can about your problem. I have a lots more to add, but for the everyday do-it yourself kinda person, it might get to technical. So ask away, if I can't give you a good answer, I'll find someone who can

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Questions Answered By Expert Charles C. Jones
In Category Electric Power & Utilities

Subject	Date Asked

motor maintenance	11/26/2009
Q: does megger testing a 3 phase motor at 6 month intervals for planned maintenance damage the motor ... A: A megger is a non-destructive test, and can be used as often as needed. As for maintenance, This ...
Motor won't start	11/23/2009
Q: I have a Leeson 1hp 220v. motor, #110090 on an air compressor. I did not have 220 in my garage so ... A: First you need to check the actual voltage at the pressure switch. Next check to make sure the head ...
drum switch and motor connections	11/22/2009
Q: I am trying to wire a Bremas drum switch (see picture attached) to a Baldor 3/4 hp motor (model DL ... A: Unfortunately, I do not have details of how the Bremas switch makes up the contacts internally, or I ...
Power cord replacement for AJAX motor	11/20/2009
Q: I have an AJAX Model FZM 7184TCFR7058DL, 3 HP, 1750 RPM model. I need to replace the power cord and ... A: Ajax is a old and obsolete motor to the best of my knowledge. I have no actual wiring diagram, so I ...
Power cord replacement for AJAX motor	11/19/2009
Q: I have an AJAX Model FZM 7184TCFR7058DL, 3 HP, 1750 RPM model. I need to replace the power cord and ... A: From what I can gather, this is a single phase motor, that is connected for 230 volts. The numbers ...
John S Barnes Corp. motor connections	11/5/2009
Q: Motor details:-cat# 110578.000 model c6c17nz2d HP1/3 ... A: All pumps both liquid and hydraulic that I have worked on are set in one direction. If this motor ...
wiring a 220 volt Doerr motor	11/3/2009
Q: I was given a Doerr motor to replace the 3-phase motor on an old engine lathe (Sheldon) that I just ... A: I have been away this weekend, but I haven't forgot you. I will try to have a answer for you this ...
the motor on my 10 inch Craftsman saw quit running	10/28/2009
Q: I was ripping down 2x4's into strips using my 10 inch Craftsman table saw when while sawing, the ... A: Check for voltage at the motor. If the motor has a manual overload, see if it is tripped. Also check ...
wiring a 220 volt Doerr motor	10/28/2009
Q: I was given a Doerr motor to replace the 3-phase motor on an old engine lathe (Sheldon) that I just ... A: Les, all I can supply is this NEMA standard wiring diagram, ...
Reverse an Electric motor	10/23/2009
Q: I have a compressor motor that is rotating the wrong way for it to work properly.I need it to run ... A: Most, but not all compressor motors come from the factory with set rotation. This means that it ...
Motor fuses	10/22/2009
Q: I'm having a problem with a three phase motor that blows fuses at the disconnect switch. It's a 230 ... A: Have you checked the voltage and amperage while the motor is running? Is the motor subject to ...
electric motor	10/21/2009
Q: I have a doerr emerson 1/2 hp Lr22132 and it does not have a plate with diagram or marked wires, it ... A: Answer Using this diagram here, http://farm1.static.flickr.com/114/253735324_c7d4920bc5_o.jpg use ...
Wiring Furnas Drum switch	10/19/2009
Q: I have a SouthBend 9inch lathe, and I replaced the original motor with a US motors 1/3 hp motor ... A: Using this diagram here, http://farm1.static.flickr.com/114/253735324_c7d4920bc5_o.jpg use these ...
Fix the wiring on a Sears 6 inch Bench Grinder	9/30/2009
Q: I am hoping you can help me. My neighbor has a Sears 110V 6 inch Bench Grinder (Model 319.190620). ... A: First, to make it easy, label the white wires #1 and #4, makes no difference which one is which. Now ...
3 phase motor connections	9/17/2009
Q: We have problems figuring out when we connect 9 lead and 12 lead motors if we should be using the ... A: Almost all nine lead motors are connected using the wye. Delta connected is the same for high ...
single phase motor	9/16/2009
Q: i have a single phase 240v 3 wire spa pump motor which has a single capacitor (i believe for start ... A: Have the capacitor checked, and if bad replace. If it is a run, (made from aluminum,) and after ...
electric motor insulation testing	8/18/2009
Q: I repair pool and spa motors and pumps and wonder if an insulation tester ( Megger) is of any real ... A: The megger is the first diagnostic tool that I use on every motor. If you can afford it, get it!. As ...
Electric motor questions	8/12/2009
Q: I am building a phase converter and I need a 10HP 3 phase motor. I found a motor of a large frame ... A: To answer your question, I will need a few details and measurements. First, what is the RPM of the ...
missing capacitors	8/11/2009
Q: I have a air compressor with a baldor 5hp motor. the capacitor box on top of box was missing. All I ... A: Here is the factory diagram, and the capacitor sizes from Baldor. ...
Dayton Motor - no wiring codes	8/4/2009
Q: Dayton model #4K641, 0.5 hp, CI, 1 ph, dual voltage, double shaft. Great old bench grinder motor, ... A: Bob, what you are describing leads me to believe you have a dead spot in the starting switch. Bleed ...
dayton motor	8/4/2009
Q: my dad gave me an air compressor with a dayton 115v/220v motor on it, he had it wired for 220 but i ... A: Remove the belt from the motor, recheck your connection and run the motor. You really need a amp ...
Dayton Motor - no wiring codes	8/2/2009
Q: Dayton model #4K641, 0.5 hp, CI, 1 ph, dual voltage, double shaft. Great old bench grinder motor, ... A: Bob, the trick here is determining the start and run windings. As you can see here in this diagram, ...
Capacitor for GE type KC 1/4 HP motor	7/30/2009
Q: Mr. Jones My ceiling mounted whole house fan has a General Electric 1/4 HP single phase 115Vac ... A: I have no way of knowing what size capacitor you will need. Each manufacture is different. As we ...
test elec motors	7/22/2009
Q: How do you ohm out a motor to see if it is bad? A: Using a ohm meter is not a adequate test for a motor. About all it is good for is to test continuity ...
Motor is cyclying under load...	7/19/2009
Q: I have a GE single phase motor, 1/2 hp 1725 rpm. It runs a long, custom made belt sander. When it ... A: It sounds like your motor start winding is not operating. Try replacing the capacitor. If that ...
Converting 208v to 110v and the wirirng...	7/9/2009
Q: I have seen the reply about the same subject, taking out a 3 phase breaker and replacing it with ... A: Mick, for 115 volts connect the white wire to the neutral bar in your breaker box. You should see a ...
deep well pump not functioning	7/4/2009
Q: I checked the voltage thru the pressure switch (240 volts), is OK, I measured the capacitor and ... A: Remove the wires from the control box, and test continuity from red to yellow, and yellow to black. ...
D.C. Motors	7/3/2009
Q: How do I test a DC motor to make sure its in good working order? My motor is rated for 24 volts at ... A: The motor will need to be disassembled to test. This is a complicated procedure. The field coils ...
Craftsman 10" Table Saw Motor	7/1/2009
Q: The motor on the 10" Craftsman table saw is a 1 HP 120/220 volt - dual capacitor motor. (No ... A: I would check the capacitors, and if bad replace them. If that doesn't fix the problem, then you ...
REVERSING 1PH MOTOR WITH CONTACTOR	6/24/2009
Q: Motor has 6 leads connected as follows: L1 to #1, L2 to #4 & 5, 2,3&8 are connected together. To ... A: I do not have a drawing handy for the high voltage connection using contactors, but have one for the ...
9 lead motor	6/18/2009
Q: My friend has a 9 lead motor. He put it on a machine that has a 6 contact drum switch. It is a ... A: Try this diagram here. Connect as shown, except connect L2 to P1, and not to the drum switch. ...
Doerr Electric Motor Wiring	6/18/2009
Q: Working on a Boat Hoist with a Doerr Electroc Motor / Model #LR24684. Wired for 220VAC operation - ... A: All I can supply is a standard reversing switch diagram. This is for a Dayton, ...
Rewire 240v to 120v DOERR LR22132	6/1/2009
Q: I have a Doerr aka Emerson Electric compressor motor LR22132. I is currently wired for 240v. I ... A: This motor is not capable of being connected for 115 volts in the field. It is a single voltage, set ...
circuit breaker is tripped when I plug in my treadmill	5/31/2009
Q: I have a dp fit for life powertrac treadmill with an emerson 1 hp-motor, model# s67kdf-7657, 115 ... A: If the breaker is tripping, then you have a dead short somewhere. It would be impossible to diagnose ...
spa motor	5/30/2009
Q: installed new 2 speed ao motor for spa,110volt when first turned on both speeds work,now only ... A: You possibly have a shorted winding, or a bad starting circuit. Because this is a spa motor, I ...
5hp 110 volt motor	5/22/2009
Q: I was given this compressor after the man found out that the wiring could not handle the load. I ... A: I think that this motor is probably made in China. The wiring colors do not match the colors of the ...
electric mower	5/20/2009
Q: I replaced the switch, no change. Then I found a brush stuck in it's holder, unable to move ... A: This wiring is doing two things wrong. First, with the two red and blue wires as drawn, you are ...
Century Motor Part #8-150257-02, single phase, 220VAC, 15 AMP, HP5.SPL, 60HZ, 3450 RPM	5/10/2009
Q: I recently purchased a pressure switch (Furnas 69jf7ly2c)to replace my old switch (Furnas ... A: First, again push the reset button rally hard. You should hear a distinctive click. Did you check ...
boat hoist motor/switch	5/8/2009
Q: "I have an overhead boat hoist which utilizes a Century 3/4 hp motor. I broke the handle off the ... A: Your switch is wired incorrect. Here is a correct diagram, ...
DD Blower motor 1/3 hp	5/6/2009
Q: Mr.Jones replacing blower motor on my furnace!Coleman EB17B model.It had a GE motor!I got a ... A: I could not find a wiring diagram for the Dayton motor. But I believe the following will work. ...
DD Blower motor 1/3 hp	5/5/2009
Q: Mr.Jones replacing blower motor on my furnace!Coleman EB17B model.It had a GE motor!I got a ... A: There should be a wiring diagram on the new motor. Your new motor should have separate wires for the ...
testing a motor under load	4/22/2009
Q: what kind of reading should i get in testing a 3-phase 220/440 motor using a fluke multitester under ... A: You need to test with a amp meter. Uncouple the motor from the load, and test it with no load. The ...
electric motor hp	4/21/2009
Q: I am trying to make a auto transmission test bench and I am wondering about hp and motor rpm. I am ... A: The horsepower rating depends on just how much the motor will be loaded. With no load on the output ...
Circular Saw 3 Phase Motor Star or Delta?	4/8/2009
Q: I have been asked to install a D.O.L and E Stops to an old circular saw that has had a new motor ... A: What you have is for high voltage, and it is correct. Here is a diagram for other connections. The ...
adding drum switch to electric motor	4/7/2009
Q: I have a lathe with a Delco motor, model 8540, Type AD 1/2 hp running one phase on 110. The leads ... A: You will have to disassemble the motor, and find the number 8 lead. It needs to be brought out to ...
GE AC Motor Wiring	4/7/2009
Q: I just purchased a General Electric AC motor for use with a bandsaw and need to know how to wire it ... A: What is confusing to me is the number 7 lead. This is not a standard number. This may help you to ...
GE AC Motor Wiring	4/6/2009
Q: I just purchased a General Electric AC motor for use with a bandsaw and need to know how to wire it ... A: I am surprised this is a new motor that does not have a wiring diagram. I have no schematic, nor ...
adding drum switch to electric motor	4/4/2009
Q: I have a lathe with a Delco motor, model 8540, Type AD 1/2 hp running one phase on 110. The leads ... A: First of all, You will need six leads coming out from the motor. It being a Delco, it is a very old ...
Wiring a 220V single phase motor	4/3/2009
Q: Recently, I purchased two pieces of woodworking equipment for my home. Both are single phase 220V ... A: It depends on the full load amp rating of the machine. If the machine pulls 30 amps at full load, ...
Electrical problem	3/27/2009
Q: Charles I hope you can help. I have a machine with a 10HP 3phase mechanical brake motor at start the ... A: An arcing contactor could cause the problem you describe. If the new contactor does not cure your ...
Emerson J56CZ 1 HP Ref#607710C Date code K3988	3/26/2009
Q: The line connection diagram plate has been removed & lost. It looks right to hook line to term. 1 & ... A: Your problem is wear in the bearing, housing, shaft or a combination of all three. When the motor is ...
KW single phase motor, coupled to centrifugal pump	3/19/2009
Q: We have a 1 KW single phase motor, coupled to centrifugal pump, capacitor start, 3 wires from the ... A: Your problem is in the starting circuit. It could be a bad capacitor, switch, governor or a open in ...
3 phase fan motor	3/14/2009
Q: which has a junction box with eight wires for conbnection, i want to connect a five wire three phase ... A: Sorry, I'm not a mind reader. You have gave me no information to work with. First, I know of no ...
Reversing dual voltage motor	3/11/2009
Q: I have a Lincoln dual voltage motor that is wired 115. It will be connected to a drum switch for ... A: I do not have any info on how this motor is connected, whether it just brings out leads, or has a ...
220v motor wiring with reverse drum switch	3/11/2009
Q: After looking through all the previous questions I still haven't answered mine. I have a 2 hp ... A: Shawn, I will try to have a drawing online for you shortly. You have a single voltage motor, while ...
motor noise and vibration	3/7/2009
Q: What would make a 1/2 hp AC 115v/60 hz motor have a rhythmic drone rather than a steady hum ? If ... A: Kinda hard to diagnose a noise over the internet. A loose rotor could cause a noise, as could ...
Compressor motor wiring	3/7/2009
Q: On a 7.5 HP 3 Phase 220VAC motor is it possible to not use a magnetic starter and still have the ... A: Though it can be done, I would not recommend it. You would wire two legs through the switch and the ...
3 phase motors	3/4/2009
Q: I have a 50 HP 600V 3ph submersible pump on a soft starter. When I start the pump it pumps a low ... A: Not much I can tell you here. Soft starts are out of my expertise. Can you disconnect from the soft ...
question regarding previous post/answer	3/4/2009
Q: I am wiring a forward reverse off switch to a motor on my metal lathe. The motor is chicago electric ... A: There is a discrepancy in this drawing that I have not noticed until now. Connect you L1 to P1, and ...
Electric motor issue	3/1/2009
Q: I have a 1-1/2 HP Leeson 145 frame,dual capacitor single phase 115/230V electric motor. Question is: ... A: If the rotor and stator have heavy rust build up, a cleaning would be good maintenance, but that is ...
themal overload reset on 3/4 hp AC motor	2/28/2009
Q: The Magnatek pump motor at a property I purchased is non-functional. ID is Catalog B-625, Type CS, ... A: Your motor has a internal thermal overload. It resets automatically. Have you checked your voltage? ...
wire a new drum switch for a boat lift	2/27/2009
Q: I have a 1 hp GE motor, model #5KC49PN0216 on a farely new Boat Hoist USA lift. We want to install a ... A: This is all I can provide, which is NEMA standards. Use this diagram to identify the colors, ...
Hooking up Magnetic Switch after Motor repairs	2/24/2009
Q: I have a Delta table saw, 3hp, single ph , 240V, with Magnetic switch. Took the motor out to have ... A: L1 L3 L5 13 T2 T4 T6 13 To me, it makes no sense to have a jumper from L3 to T6, and ...
2 speed pump motor on spa	2/21/2009
Q: i have 3, 2 speed pump motors for use on a spa, i have new control box on spa, none of the motors ... A: I will need more information to even consider a answer. My knowledge is limited to the motor itself, ...
Wiring diagram	2/19/2009
Q: I have a Dayton 11/2 HP motor 115/208-230 volts, 14.2/7,7-7.1 Amps, continuous duty, thermally ... A: This should help you to wire your switch. ...
3 phase motor	2/12/2009
Q: I just bought a large used dough mixer. The machine was advertised as single phase, 3/4 hp, 3.28 ... A: My concern would be if the motor has single phased. This will cause a set of windings in the motor ...
220 v table saw wiring	2/11/2009
Q: I have a fairly old (1950s) "Driver Line" electric motor made by Kearney and Trecker for their ... A: With a capacitor, I'm sure it is a capacitor start. To show you what is involved in connections, ...
230/460 single phase motors	2/10/2009
Q: I have a 10HP, 230v, 1 phase, Cap start/induction run pool pump without a name plate. It's a ... A: I believe you may have the motor connected for 230 volts, but are running on 115 volts. And as for a ...
electric motor wiring	2/9/2009
Q: I have a single phase 230 volt motor capable also of running on 440 volts. Its a GEC cont rated unit ... A: I'm afraid what you have is a motor that lacks in starting torque needed for the application. The ...
? about alternator	2/7/2009
Q: I built a small 3 phase ac alternator that uses pemanent magnets. my intention is to hook it up to ... A: You will have to nave the alternator under some type of load to get a measurement. I am assuming you ...
Wiring GE type KC motor	1/30/2009
Q: I have a GE type KC 110/220 1/2 hp motor (As best as I can read - 11E422DBY). There are 4 leads ... A: Sorry for the delay, I thought I had replied. If I knew what wires were the start, and which were ...
Wiring GE type KC motor	1/29/2009
Q: I have a GE type KC 110/220 1/2 hp motor (As best as I can read - 11E422DBY). There are 4 leads ... A: I'm thinking your motor is a import, because it does not conform to EASA standards. US motors do not ...
single phase motor problem	1/24/2009
Q: I have a double miter saw which has two 230V 1.5 single phase motors which come on at the same time. ... A: I can only take a educated guess here. Incorrect wiring. Not knowing how it is wired, and the type ...
Leeson 1hp motor wiring	1/17/2009
Q: Just purchased no. 110142 woodworking motor. It has T4 and T5 together, T2, T3 and T8 together and ... A: What you have now is the high voltage connection, 230 volts. If this is the voltage you want, ...
Baldor Capacitors	1/9/2009
Q: I have a 5hp Baldor Single phase motor,208-230 Volts,On the top of the motor is a cover with 3 ... A: If you can email the drawing, I will see if I can make it more simple to understand. Also, with the ...
spa motor dead	1/8/2009
Q: My spa motor is about 2-3 years old and has stopped working. Over the last few years I had to ... A: If you cannot see voltage between black/red to the common, or white, then one of two problems ...
finding p1 p2 or all the lines	1/7/2009
Q: 50 yr old machine repairman ford motor co. but more mechanically minded.recently purchased a 1950s ... A: I'm guessing you have no numbers on the leads. Here is a wiring diagram if you have numbers on the ...
run/start	1/6/2009
Q: here goes; 2 hp motor single ph 115v,has 2 capacitors in parallel wired to leg Z2 on motor,with no ... A: It appears you have a permanent split capacitor motor. These use capacitors to keep the start ...
CENTURY ELETRIC MOTOR SWITCH REPLACEMENT	1/4/2009
Q: I HAVE A CENTURY 5 HP SINGLE PHASE MOTOR: TYPE CP PART#8-164621-01 FRAME T56HZ 5.0HP ENCL DP 230 ... A: Your motor is factory set for CW rotation looking at the rear of the motor. It has no connections ...
2hp electric motor died	1/3/2009
Q: the motor is on a air compressor. turned it on and it started momentarily then quit. it pooped the ... A: If the windings are bad, changing voltage will not help. It just could be a bad capacitor. Have it ...
Dayton 6k325A	1/3/2009
Q: I am installing a used coffee roaster into my new shop. As of right now, we have the shop wired ... A: Although your roaster may be connected for 115/220 volts, the motor will still use only 115 volts. ...
start & run capacitors	1/1/2009
Q: 1) How can one be certain of correctly identifying a cap as a "start" or "run"? Does the absence of ... A: Run capacitors are usually encased in aluminum, where start are in black plastic. If the motor has a ...
wiring fan motor	1/1/2009
Q: I'm trying to hang a coil with a squirrel cage motor behind it. The problem is that I think I need ... A: Yes, you will need a run capacitor. If you have a readable nameplate, check to make sure it is 110 ...
WIRING A SWITCH	12/30/2008
Q: CHARLES, I HAVE AN OLD CRAFTSMAN AIR COMPRESSOR AND MY PRESSURE SWITCH WENT OUT.I BOUGHT A NEW ONE ... A: L1 and L2 are the wires coming from your power, such as a breaker. T1 and T2 are the wires from the ...
Power connection to 110/220 motor	12/26/2008
Q: Charles- I inherited an old Craftsman 1 HP air compressor w/ a Howard motor, type RK5;, FR: K56; ... A: If 2 and 3 are on the same post, it is connected for 230 volts. As I have no diagrams for individual ...
Wiring	12/19/2008
Q: I want to wire in a 120vac receptacle off of a 220vac single phase recepticle. How do I do this? A: From a technical viewpoint,I do not advise that you use this method, as a failure in the 120 volt ...
Baldor 3 phase motor	12/19/2008
Q: I am replacing the old irrigation motor (Baldor JMM3312T) and I am wiring the way the old one was ... A: When checking the voltage, you should have 220 volts from phase to phase. Each leg will read 120 ...
3 phase	12/9/2008
Q: Good Morning, I have a 3 phase in my warehouse i need to connect a machine that uses 220v 3 phase, ... A: You have 220 volts. Connect your black wires from the machine to any terminal. What you want to do ...
rewind possibilities	12/4/2008
Q: I need two 50HP 900RPM 575v shaft down C or D face TEFC motors, which are nonexistent on the ... A: Re-winding is not my expertise. I just do the machine work and mechanical work. To the best of my ...
Centrifuge motor	12/2/2008
Q: I am building a sculpture using some electronic parts. I have done simple wiring before, but I am ... A: I don't think the motor should smell after running. The only sure way to tell would be to check the ...
1phase electric motor keeps blowing house fuse	12/1/2008
Q: both motors are 3hp but the single phase motor will run all day without the belt being conected but ... A: What voltage is the motor? And what voltage are you using ? My guess is that the motor is connected ...
South Bend Lathe	11/28/2008
Q: I have no eletrical wiring skills, so I hope you can tell me or show how to convert me 3 phase lathe ... A: These diagrams are for the most popular used drum switch. For 115 volts, ...
110-220 wires	11/26/2008
Q: I'm converting my old Sears compressor from 110v to 220v. The Doerr motor has the diagram on it for ... A: Unless your motor has a resilient base, that is, one that has rubber bushings on the motor that ...
ac 1 1/2 hp tefc wired for 120vac motor	11/21/2008
Q: my 10 yr old tablesaw motor somtimes trips my 20amp breaker, it happens about 30-40% of the time. ... A: Sorry for the delay, it seems I overlooked this question. The capacitor needs to be checked with a ...
two speed spa motor	11/20/2008
Q: the motor/pump works fine on low speed and with low speed on the high speed works fine. starting ... A: Most, but not all 2 speed pump motors have a dual switch inside the motor.The motor has two separate ...
3 phase motor troubles.	11/20/2008
Q: I have a fan motor on our roof that uses a 480 volt 3 phase motor. I had a dropped phase on the ... A: From your question, I guess you were reading each phase to ground. Did you check phase to phase to ...
reversing a pump motors rotation	11/17/2008
Q: I have a magnetek single phase 120volt pump motor that I would like to reverse the rotation on,it is ... A: Pump motors from the factory are in set rotation, and are not field reversible from the connection ...
Weak motor is it Phase Rotation, Or ?	11/17/2008
Q: Jones, I have read several of your articles and its obvious it will take more of your energy to ... A: Phase rotation is just the way a motor is connected to line. Such as L1 to T1, L2 to T2, L3 to T3. ...
ac 1 1/2 hp tefc wired for 120vac motor	11/16/2008
Q: my 10 yr old tablesaw motor somtimes trips my 20amp breaker, it happens about 30-40% of the time. ... A: If it has a run capacitor, (which are normally encased in aluminum) have it checked. The start ...
single phase magnetic starter does not power tools	11/15/2008
Q: I just completed wiring my shop with 240V. I have 118 volts on each leg from the breaker to the ... A: Before I could make any kind of answer, I would need to see how everything is wired. Here is a ...
Starring Capacitor for Dayton Motor	11/14/2008
Q: Charles - i have a dayton motor model 9K324H which needs a starting capacitor. The lettering on the ... A: I can only guess. The only way to truly know is to contact WW Grainger. There is no standard for ...
Old Wagner 1/3HP four wires	11/14/2008
Q: I am dealing with an old Wagner 1/3 hp motor. My Dad has it running his 1940's era Powerkraft table ... A: Not much to work with here, and the following may not work. Use a ohmmeter and find two leads that ...
ringging out cut wires	11/13/2008
Q: We Have Had Several Cut Cut And Now not sure where they all go they are still hooked up to motors , ... A: Unless the wires are color coded, you will have to check from the motor back to the cuts. You didn't ...
How to convert a 120 VAC electric motor to 220 VAC	11/11/2008
Q: I really like your web site here! And it looks like I stumbled upon just the place I need. You see, ... A: from central Alabama, USA. First of all, your motor is not able to be wired externally for 220 volt ...
elect motor wiring	11/8/2008
Q: I have a doerr single phase cap start 1.5 hp elect ac motor and we are trying to wire 230 v. the tag ... A: All I can offer is the standard wiring diagram from NEMA, which can be seen here. It only gives the ...
motor capicitor	11/7/2008
Q: I bought a small lathe with a 2hp 230v motor. the previous owner said that he had replaced it with ... A: There is no standard for sizing capacitors. This is done at the manufacturer. The only sure way is ...
Dayton Drum switch wiring	11/4/2008
Q: I couldnt find the right drawing for a dayton 2x440a in your answers. Here is the config. of the ... A: Paul, I'll try to get a drawing for you. As you didn't specify which voltage, I'll give both. It may ...
motor switch contacts	11/1/2008
Q: What is the purpose of the motor switch contacts 1 & 2? A: I'm guessing your speaking of the contacts on the stationary switch inside the motor. These control ...
two speed motor	10/15/2008
Q: I see you answered a question awhile back on this subject ..here is my problem the motor is on a hot ... A: The part on the armature is called a centrifugal switch. When the motor is at rest, the springs ...
Single phase reversing motor connection assistance needed.	10/13/2008
Q: I have a Dayton, Model 6K324BA, 1.5 HP. dual voltage, reversible motor and an Advanced Controls ... A: If you can, send the diagrams to me. I have never came across a reversing switch with this many ...
motor wirong connections	10/12/2008
Q: I have a 36-inch fan powered by a Dayton 2-speed 110vac motor. It has a chain-pull switch, 3 ... A: This motor is obsolete from ww grainger. As we do not stock dayton motors, I would have to make a ...
3 and 4 wire connections for 220 V. 1phase motors	10/10/2008
Q: I am installing a 5 HP 220 volt motor to operate my hanger door. The motor leads are marked for ... A: This is the standard connection for a four wire plug: Top O ...
Hooking up a motor at a different voltage	10/10/2008
Q: I have a 5 hp 208/230 vac, single phase motor, 60HZ. Is there anyway that motor can be wired with ... A: At the most, you have four leads coming out of the motor. Numbers 1,4,5,8. Connection is L1, 1&5, ...
gayton split phase motor/drum switch	10/10/2008
Q: im reading similiar question/answer and i hope you can help, im trying to wire a drum switch to a ... A: I have your question, and will have a diagram for you tomorrow, as I have to draw it out and upload ...
wiring diagram for ge single phasemotor	10/10/2008
Q: I am looking for a diagram for a GE commercial ac motor model 5KC46LNO252AY 220 volt 60amp. single ... A: It seems you are missing one wire for your connection. T8. T8 and T5 are the start winding circuit, ...
Hooking up a motor at a different voltage	10/9/2008
Q: I have a 5 hp 208/230 vac, single phase motor, 60HZ. Is there anyway that motor can be wired with ... A: Capacitors are not used to determine voltage. Changing the voltage would require complete ...
Motor pulling high amps	10/7/2008
Q: I have a new Baldor 10Hp 230V 3ph motor on a liquid oxygen pump that is pulling 35-38 amps per ... A: I would first disconnect the motor from the pump, and run it with no load and re-test the amperage ...
ge 240 volt motor	10/6/2008
Q: charles i have a ge single phase motor with 4 terminals on it and i dont have a clue as to wiring it ... A: I have no wiring info for this motor. Use a ohm meter and find which leads read to each other. As a ...
3 phase to 1 phase	10/2/2008
Q: I have located a natural gas motor that is set up with a 3 phase generator and I want to have single ... A: The voltage from the generator must be the same as your grid power. If they are the same, you would ...
AMPS	9/30/2008
Q: The company where I work recently bought a DAYTON motor.The motor is a 208-230 volts 3 phase ... A: Is the motor that was replaced the same RPM as the Dayton? The amperage draw is ok, by that I mean ...
troubleshooting power saw motor problem	9/24/2008
Q: Makita 16" Circular Saw Model 5402-a 110v 12amp Single phase motor The brushes are sparking ... A: If you can see the field coils are burnt, no more testing needed for those. I'm guessing this is a ...
220 hot tub wite	9/23/2008
Q: When I replaced my hot tub I realize I have one white wire one green wire and two black wires. How ... A: The two black wires should be your 220 volt lines. White is neutral, and green is equipment ground. ...
converting 208v to 110v?	9/23/2008
Q: I have a 3phase 208v 30amp service that i would like to a break down to a 3 single phase 110v 20amp ... A: In place of a three pole breaker, just install a single pole. But at 208 volts, you may only get 104 ...
Magnetek Single Phase	9/21/2008
Q: Have a compressor with a Magnetek Single Phase, start and run capacitors. Will not run. Checked ... A: Is the motor trying to run, that is making a humming noise? If not check your voltage again. Also, ...
Reversing motor	9/18/2008
Q: I have an old Sears drill press that has a capacitor start A.C. motor. It says on the legend plate ... A: As you didn't specify what voltage your using, I will give both connections. These diagrams should ...
Star/Delta Starter: Forward in Star and Reverse in Delta?	9/18/2008
Q: I have a problem in Star/Delta starter problem which i still can't find the answer from internet. ... A: Your delta connection is U1-W2 ; V1-U2 ; W1-V2 Here is a copy for your records, ...
old wagner motor	9/17/2008
Q: I have a 1.5 hp Wagner motor on an air comp. it has 4 unlabeled wires,they are paired together and ... A: As I don't know the internal connections of the coils, I can only guess as to the connection. ...
Single phase 2hp motor trips breaker	9/12/2008
Q: I have a 2hp moter on a power washer, single phase 3450 rpm, that will start good and run for about ... A: Here is a start for checking your problem, Have the capacitor tested. Check for continuity between ...
Star delta circuits	9/10/2008
Q: Please find a digrame of pannel wiring of star delt starter for me. A: Sorry for the delay in answering, but I have had some internet provider problems. I can probably ...
Spa motor start	9/5/2008
Q: I'm having start problems on my spa pump motor. The motor just hums when starting. It hums for about ... A: This is from a previous answer: Next, check the capacitor. Bleed the capacitor first by using a ...
motor not starting than tripping breaker	9/1/2008
Q: I have a baldor 3HP, single phase motor on my table saw that has never had a problem. A month ago ... A: If you have a air hose, blow out the motor, it may be just dust between the contacts of the starting ...
Power for a 3 Phase Motor	8/31/2008
Q: I am not positive if this is in your score of question or not, so I apologize if it isn't. I have a ... A: My preference would be the rotary type. Parts, if you need them, can usually be had at your local ...
Dayton Generator	8/30/2008
Q: Dayton 5000 watt, model SU934 (older model), with 11 HP Briggs & Straton motor. Unit hasn't ... A: Sonny my knowledge of generators is limited. Flashing would have been my first answer. If it has ...
GE AC Motor rewire from 115 to 230 volts	8/29/2008
Q: I have a used AGET dust collector which has a GE AC Motor Model# 5KC45NG536, 1hp, RPM 3450 1 phase ... A: Darryl, unless those wires have numbers on them, I can't help. If the colors are standard, it would ...
Need a wiring diagram for an old GE motor	8/29/2008
Q: We have an old 2HP GE induction motor that we no longer have the wiring diagram for. Can you help? ... A: This is the only drawing that I have for a Ge motor, with reversing switch. ...
reversing switch	8/27/2008
Q: I HAVE AN OLD CUTLER HAMMER REVERSING SWITCH WHICH IS IN VERY GOOD CONDITION. I WOULD LIKE TO ... A: First, lets put numbers on those colors. White T2, Orange T3, Red T8, Blue T1, Black T5, Yellow T4 ...
breaker	8/25/2008
Q: 5kw pump can you tell me what size breaker I should install to protect it Thanks Kevin ( Spain ) A: As I am in the USA, I converted kw to hp. I came up with 3.3 hp. FLA will be approximately 12.8 ...
DELCO Motor Wiring	8/22/2008
Q: Restoring a DELCO Motor Model A2033; AC Motor; Series G-53; 1/3 HP; Code P; Type SP, 115 volt 60 hz. ... A: This is a really old motor. There should be four wires coming out of the stator windings, unless the ...
wiring a 115 V 3/4 HP motor	8/19/2008
Q: We have a single phase motor for our boat lift. It is a Marathon 115/230 Volt, 3/4 HP, 1750 RPM ... A: That is the motor. I needed the switch. Here is the wiring diagram for the reversing switch drawing ...
Doerr motor wiring	8/19/2008
Q: Mr. Jones: I have read many of your question/answer listings and am greatly impressed by the ... A: As this is a very old motor, and the color and numbering system is not standard, its tough for me to ...
Generac 6500 Generator	8/19/2008
Q: Have used it for several years to run a stick welder. Has had proper maintenance of fuel, oil, etc. ... A: My knowledge of the newer models of generators is limited. Most all now have circuit boards that ...
Bathroom ven motor	8/18/2008
Q: At my work, we have a bathroom vent (250mm) for each toilete cubicle & shower, 5 in total, all of ... A: These motors require air from the fan to keep them cool. We do not service these motors. just ...
power phases in homes	8/14/2008
Q: How do I easily determine if two outlets in my home are on the same phase leg of power? I have some ... A: I know of X-10 technology, but have never had any type of dealings with it. As for the circuits ...
I need to reverse my dress press motor. Please Help.	8/12/2008
Q: My name is Charles. I need some help reversing my drill press motor. I have a Delta drill press ... A: Tapping acrylic huh? Now I can agree with that. I could be wrong, and it would not be the first ...
I need to reverse my dress press motor. Please Help.	8/11/2008
Q: My name is Charles. I need some help reversing my drill press motor. I have a Delta drill press ... A: I am a machinist by trade, and I question your use of a drill press as a tapping machine, unless it ...
wiring Sq D reversable drum switch 220v 1ph	8/9/2008
Q: I have a boat hoist powered by a dual voltage Doehrr 1hp motor with a start winding and 2 run ... A: I did make a mistake in my wiring connection. P2 should be connected to where I show L2 in the ...
Wiring asynchronous single phase motor	8/8/2008
Q: I have a snap on compressor with a 90 lb/2 asynchronous single phase 240volt 3.o hp motor on it ... A: I do not have any info on imports. (I'm in the USA) I can only make a guess. Remove the rear ...
3 phase Electric Motor (measure load)	8/7/2008
Q: I would like to monitor the load on 3 phase motor with permanent meter. Is it necessary to measure ... A: You might install current transformers, such as these, http://www.vias.org/feee/acmeter_02.html It ...
60 hp motor intermittent tripping of motor starter overloads	8/3/2008
Q: 60 hp motor [rebuilt 8years in service] supports 60 ton chiller and has started to trip overloads on ... A: We all forget the words sometimes, but that doesn't help your motor. A humming motor makes me think ...
SINGLE PHASE ELECTRIC M. PROBLEMS	8/3/2008
Q: WHATS UP. I BOUGHT A 1/2 ROUTER FOR CABINET MAKING, HOWEVER IT LASTED ALL OF A FEW HRS. OF ... A: I'm guessing this is a used tool, or you would have already taken it back for a replacement. Are the ...
doerr single stage electric motor.	8/3/2008
Q: I have 1/3 HP Doerr motor used to pump beer through filters prior to packaging. When I turn it on ... A: Have the capacitor tested. Check for continuity between the two wires that connect to the capacitor. ...
Radial arm saw motor	8/3/2008
Q: I bought an older craftsman 12" radial saw from an estate and it had a 115 volt replacement plug on ... A: First, if it has a manual reset button, press it really hard, and listen for a audible click. You ...
Lathe Motor Star/Delta	8/2/2008
Q: I too am a sparkie. Last week I called on a local engineering company with a view to getting their ... A: Garry, can you supply the complete nameplate data? I question whether this is a part start, or a 2 ...
furnace motor hum	7/31/2008
Q: A couple of months ago I oiled my 20 yr. old direct drive squeaky furnace motor. I think its a Fasco ... A: 20 years! I would have that thing bronzed and put it on the mantle! It could very well be the ...
three phase overspeed motor	7/28/2008
Q: we have an arguement about electrical theory.If I have a three phase induction type motor and it is ... A: An induction motor cannot generate electricity. It can only consume. Now if you drive a generator ...
wiring Sq D reversable drum switch 220v 1ph	7/26/2008
Q: I have a boat hoist powered by a dual voltage Doehrr 1hp motor with a start winding and 2 run ... A: Try this diagram, and see if it matches up to your switch. The dotted lines are the internal ...
ohm out a motor with meter set on ohms.	7/12/2008
Q: WHEN I WANT TO OHM OUT A MOTOR TO SEE IF IT'S GOOD OR NOT. COULD YOU TELL ME HOW TO GO ABOUT IT AND ... A: An ohmmeter is not a very good test for a motor. It will show you continuity in the circuit. It can ...
BUDGIT Hoist motor	7/9/2008
Q: It's me again. I wish I could email you a drawing on the switch and the leads of this motor. The ... A: What you have is a DC (Direct Current) motor. I have never seen one of these on a hoist. They are ...
Marathon B311	7/3/2008
Q: We have a Marathon B311 motor that we would like to utilize a Dayton 2X440 drum switch with to ... A: Due to safety reasons, the only way I wire a drum switch is to bring out all six leads to the drum ...
How to verify the operation of a 3 phase motor	7/3/2008
Q: I have a friend who would like me to check and make sure a 3-phase AC motor is still in good working ... A: It needs to be tested with a megohmmeter. This will give you a accurate reading of the insulation ...
compressor motor problem	6/30/2008
Q: I have a compressor with a 'Brooks Crompton' single phase 230v 3hp 2.2kw motor; it has two ... A: First check that the compressor turns free. Capacitors normally have the data written on them. Run ...
AC electric motors	6/30/2008
Q: Can a start capacitor be added to my single phase 3/4 hp. motor, to stop power drop at start up. It ... A: If the compressor is starting ok, then your problem is in the circuit it is connected too. It may be ...
Reverse polarity	6/29/2008
Q: The rear fan blade broke on my General Electric airconditioner,Model#AJCH12DCM1.To replace the ... A: Unless you have another set of wires brought out to reverse the motor, it is set rotation. Now I ...
Electrical Phases	6/25/2008
Q: I am confused about phasing in electricity. First is it possible to run single phase and three phase ... A: Yes you can get single phase from your three phase panel. You will use one or two lines. For ...
electrical dryer	6/24/2008
Q: I recently installed 10-2 wiring set up for an electrical dryer, along with a double 20amp breaker ... A: I do not service appliances, but you may have a bad heating element. You will need to check for 220 ...
MOTOR STARTING	6/23/2008
Q: I HAVE A BALDOR INDUSTRIAL SINGLE PHASE MOTOR RATED A 3HP, 3450 RPM, 60HZ, 28/14 AMPS. THE MOTOR IS ... A: It seems you still have a problem in the start winding. But first, do you hear the head release ...
MOTOR STARTING	6/20/2008
Q: I HAVE A BALDOR INDUSTRIAL SINGLE PHASE MOTOR RATED A 3HP, 3450 RPM, 60HZ, 28/14 AMPS. THE MOTOR IS ... A: The first two questions I ask is, Does the compressor turn free? Is the line voltage the same as the ...
follow info: reversing boat winch motor	6/18/2008
Q: Here is some additional info on the elec. motor I emailed about yesterday: Dayton Model:5K482K ... A: It will work just fine, you just need to bring out all the leads to the drum switch. (Leave 2&3 ...
How do I wire a HVAC squirrel cage blower?	6/17/2008
Q: I have a double squirrel cage blower without any markings on it. It has five wires ( blue , red , ... A: These units are not dual voltage. Black, red, blue, and yellow are the speeds. White is common. For ...
d112m aei stayrite motor	6/14/2008
Q: could you please tell me what size of capacitors are required for the above motor and also where ... A: Start capacitors are connected in series with the start winding. There is no rule for sizing ...
testing an ac compressor motor	6/12/2008
Q: Mr. Jones- I hope you can help me. I recently installed a 110v/220v compressor. I was told ... A: Continuity between three leads? There should be only two leads that have continuity, the ones that ...
drum switch	6/10/2008
Q: I have an early model (70's) jet lathe I bought as a basket case. I want to wire the drum switch for ... A: First, number A1 as #8, and A2 as #5. Then use this diagram to wire the drum switch: ...
3/4 HP 110/220VAC Cap Start Doerr Motor	6/10/2008
Q: Motor appears to be wired permanently for 110VAC; Run windings are joined internally {with T1 to T3 ... A: The stationary switch you are referring to I believe is a instant reverse switch. It is made so that ...
coil	6/10/2008
Q: I would like to build an electric coil ( copper, solid wire AGW #8 ) and I don't know what kind of ... A: You cannot make a coil with bare wire. Any manufactured coil, whether for a contactor or ...
electric motor	5/28/2008
Q: I just bought a metal lathe and the guy i bought it off off cut the wires at the motor and they are ... A: Without numbers or colors, I'm as lost as you are. A service center could probably trace the wires ...
dayton motor mod # 4k641 s/n 560201 frame 56 1/2 hp dble end shaft	5/28/2008
Q: Want to use this good old dayton motor on my southbend 10" lathe. No wiring diagram that I can ... A: All I can supply is these diagrams. The motor will probably have to be disassembled for the ...
3/4 hp 3450 rpm motor replacement	5/24/2008
Q: the sears repair said they no longer have most the parts for that motor. the instruction manual says ... A: Sears has had a bad habit of installing motors that are not standard frame sizes, just so you will ...
winding resistance values for a 60 hp AC motor	5/23/2008
Q: what resistance values should I expect through the windings of a 3ph, 60 hp, 575VAC motor ? An air ... A: I do not know the actual resistance values for any motor. We do not even test for these values. You ...
3 phase motor	5/21/2008
Q: I am currently an apprentice and i am having difficulty with an assignment. I am working on an 3 ... A: Each phase should be tested and compared to each other. They should be uniform amperage draw. There ...
oil filled motors	5/18/2008
Q: Now my problem is that I've opened up a 220 single phase trash pump/submerged motor. All the oil ... A: They are the same. We use Chevron insulating oil, a 5W mineral oil. You can probably get yours at a ...
Reversng motor	5/16/2008
Q: For better clarification, the J wire comes off the overload reset switch which is located inside the ... A: The T5 cannot be on the same terminal as T4. As the left side of the diagram shows, T5,T4 are L1. ...
Lesson single phase dual voltage motor	5/16/2008
Q: Resently a co-worker installed about a 1/2 HP motor on a grinder pump,and all is well. Our ... A: T9 is probably connected to a capacitor, or possibly to the stationary switch. If you have a motor ...
How to wire a reverse drum switch	5/14/2008
Q: I see you have probably answered this question before but I cannot see a diagram if you sent one to ... A: This should fix you up just fine. http://www.flickr.com/photos/96245499@N00/1463777160/sizes/m/ ...
220V 1Ph motor - directional switching	5/12/2008
Q: Just completing the re-wiring of a panel. Service is 3ph, all other motors are 3ph...but discovered ... A: I would be afraid to say yes or no to this wiring. If this motor is manufactured outside the USA, ...
Wiring for Jet Pumps	5/10/2008
Q: I've purchased a new jet pump and the instructions set out that depending on the Horsepower (1/2 HP ... A: 35 Years! I would have that one bronzed and put on the fire place mantel! Check with a voltmeter. If ...
electric motor on a milling machine	5/6/2008
Q: I purchased a 1978 Samson drilling/milling machine with a 1hp Yeong-Shing Machine Works electric ... A: Foreign motors (to the USA) do not adhere to the numbering or color coding system we have ...
5 HP 220V motor getting hot--breakers tripping	5/6/2008
Q: Jones, I am woodshop owner and and am no stranger to hooking up large machinery-3 and single ... A: Gerry, first of all, thanks for your offer of a donation, but I do this to help someone in need. If ...
wire colors on an electric motor	5/3/2008
Q: I have a 1/4 hp Emerson motor, 115v,60hz single ph, 3 spd, with wire leads red,blue,black,white,and ... A: Red, blue and black are your speeds. Connect black from your power cord to motor black. Connect ...
Color Code For AC Condenser Motor	4/30/2008
Q: My old AC Condenser motor was an Emerson, part #HQ1086696EM, MFG #Go2 C, 1/3 HP, Amp. 1.9, Volt ... A: You will need both wires for the capacitor. You will need a separate capacitor for your new motor. ...
how to wire 120v ac reversing cap start motor	4/29/2008
Q: have a foreign 120v ac reversing cap start/run motor. No wiring diagram anywhere. I pulle the end ... A: Foreign motors do not use US or NEMA standards. Knowing that the green goes to the capacitor, that ...
reversing a 220 single phase	4/27/2008
Q: I adapted an EMERSON 220 single phase AquaFlo pool pump motor to a chop saw and need to run it ... A: This motor came from the factory in "set" rotation. The other end of the start winding is connected ...
Wirring a switch to motor	4/23/2008
Q: Yes I have a switch that has been wired for my motor. It has one wire marked l1 and one marked l2 ... A: All I can supply is this generic wiring diagram. You must be able to get all six leads from the ...
Single phase compressor motor	4/21/2008
Q: The motor just hums but will not start. I have read test procedures but they have been arbitrary. ... A: The start capacitors are usually black plastic. They are rated for the voltage of the motor. Dual ...
Wiring a Square D Magnetic Starter for an Air Compressor	4/14/2008
Q: I have a Square D 8911 magnetic starter - with overload protection. There really isn't a wiring ... A: First, I apologize for my late response, as I have satellite internet service, and sometimes it ...
wiring-electric motor capacitors (dual voltage motor)	4/5/2008
Q: Mr. Jones Here is my question. Is it possible to add a capacitor to a motor that all ready has one? ... A: Before I answer your question, I have one. Why would you want to add another capacitor? If your ...
reversing direction in motor	3/29/2008
Q: I carve as a hobby and would like to reverse the direction on my motor using a double pole ,double ... A: Try this Brian. Remove the red and black from the connection plate and wire them to the switch as ...
wiring Dayton 9K324H fr.110v to 220v	3/29/2008
Q: my motor currenty has #1 term with blk 110v,#2 term is blk motor wire,#3 is double term with white ... A: Is the wiring diagram missing? It should be with the main data plate. This motor is not listed on ...
reversing direction in motor	3/27/2008
Q: I carve as a hobby and would like to reverse the direction on my motor using a double pole ,double ... A: See if this will help. http://farm1.static.flickr.com/149/354425208_e69ef5b90b.jpg Most motors ...
Dayton Boat Winch	3/27/2008
Q: I have an old Dayton winch used to lift boats out of the water. The data plate has LR-22132 on the ... A: The T numbers are the leads from the motor. The L numbers are the 110 volt line from your plug. L1 ...
wiring Doerr 1hp for 110 volts	3/23/2008
Q: I want to wire a Doerr 1 hp motor (currently wired for 220) to run on 110 volts clockwise rotation ... A: Your connection is: L1= P1 L2= 2,4,5 3,8,P2 together and insulated. To reverse rotation, ...
wiring color code	3/23/2008
Q: Have new central pneumatic 230 volt Single Phase air compressor it has a black wire labeled "Hot" a ... A: The green is always a equipment ground! You do not have a neutral on a 220 volt circuit. Your hot ...
cap. configuration	3/16/2008
Q: removed the "caps" and didn't get the wiring corectly when reinstalled need to know how to rewire ... A: I will have a look at the shop tomorrow, and see what I can find. I don't have much hope at finding ...
wiring hookup for blower motor	3/12/2008
Q: I had lost my internet connection since I last submitted my question, so I will try again. My ... A: It will have to have a run capacitor. Usually the wiring diagram is with the nameplate data. I am ...
vacuum pump motor	3/8/2008
Q: i have a sinku kiko co. ulvac g-100d vacuum pump. the motor is a 4 pole. the motor has a capacitor ... A: Don, this may or may not work, but give it a try. Tie red to white, and connect to L1 from your ...
240V Switch	3/7/2008
Q: I have a 240V logsplitter, but it wasn't wired with a switch on the motor/junction box on the ... A: All you need is a double pole switch like this one, ...
Small motor repait	3/2/2008
Q: I tried to repair a small fan motor from my dad's humidifier. The motor has 3 speeds and is wired ... A: You can omit the thermal, but I am against it. It's there for a purpose. The new thermal would not ...
Powermate generator PC0545009 failed to excite	3/1/2008
Q: I am not getting any power output from my generator. Following the manual instructions, I tried to ... A: From my experience with Powermate, most of the problems come down to the voltage regulator on the ...
keeps blowing my house fuse	2/29/2008
Q: When I turn it on, it runs for a minute or so than it blows my fuse. next to the on/off switch / ... A: I don't think the pressure switch is your problem, unless the bleeder valve is not releasing the ...
three phase motor	2/29/2008
Q: Just wondering what the best way to test the windings for a short to ground. I checked all the ... A: You need a megohm meter. This puts at least 500VDC to ground. A shorted coil or phase may not show a ...
Well Pump Repair	2/27/2008
Q: I have a Flint & Walling deep well jet pump that I suspect the bearings are going bad in the motor ... A: Evie, special tools are needed to replace the bearings. You will need a set of pullers to remove the ...
ralph electric generator	2/24/2008
Q: OK I have a older MH (1977) with a Ralph electric company generator and can not find any info on it, ... A: First of all, if you replaced the plug, check if the connecting bar between the upper and lower ...
how to interpret this wiring diagram	2/24/2008
Q: it looks likes wiring diagrams create problems for lots of people. I'd greatly appreciate if you ... A: The diagram is self explanatory. P1 will connect to the black wire from your plug. Black, white and ...
reversing an electric motor.	2/22/2008
Q: OK, this is a followup of a previous question from thread ... A: This motor is a set rotation. By that I mean it is wired from the factory to run in one direction ...
GE type KC 1/4 HP motor	2/15/2008
Q: I have read your answers for various old KC type GE electric motors and they were very good and ... A: Some how you're one wire short. To use a reversing switch, you must have six wires out. 1,2,3,4,5,8. ...
3 phase motor check	2/15/2008
Q: Have a motor where no fuses are blown. Contactor won't pull in. If you push in the contactor it ... A: Check for a single phase condition above the contactor. If the coil in the contactor was bad, the ...
Emerson Doerr 3 phase motor	2/14/2008
Q: How to wire a Emerson Doerr 3 phase motor model number LR22132 with 1/3 horsepower, 1725 RPM, ... A: For 230 volts, 1&7 L1, 2&8, L2, 3&9 L3. 4,5,6, together and insulated. For 460 volt, 1 L1, 2 L2, 3 ...
more drum switch	2/12/2008
Q: I had to ask a new question as I had to many follow up questions. I have the drum switch and the ... A: Joe, got your diagram, and will try to get you a working diagram. Still having computer problems, so ...
wiring a drum switch	2/8/2008
Q: I have a Southbend lathe. The motor I have for it is a General Electric. Here are the numbers I have ... A: I looked at your pics, and I need to know how the contacts make up in the switch.Look inside the ...
reversing motor	2/6/2008
Q: I have a compressor motor that rotates counter clockwise looking at the shaft end-on. I would like ... A: The black wire is located on the back side of the connection plate. The motor will have to be ...
Suitable motor...	2/2/2008
Q: My question falls into the "everyday do-it yourself kinda person" category. I need advice regarding ... A: If you can use a 1800 rpm motor, it would save you some big money. Lower rpm motors for single phase ...
motor forward&reverseing	1/27/2008
Q: just remove a 3-phase motor off my lathe would like to wire up a 110v motor useing the 3-phase ... A: All I can supply is a generic wiring diagram. This is the most common type I see in the shop. It may ...
how to tell if a 3 phase motor is bad?	1/25/2008
Q: went for a job interview today..had several things to do.. then i came to electric motors...3 ... A: Not enough space here to go in great detail. but first check for a blown fuse. Then test for a ...
capacitors for Doerr compressor motor	1/20/2008
Q: just purchased a used Campbell Hausfeld 60 gal air compressor, which is about 14 yrs old. ... A: I was unable to find any info about that particular motor. Try using around a 600MFD/220Volt start ...
capacitors for Doerr compressor motor	1/20/2008
Q: just purchased a used Campbell Hausfeld 60 gal air compressor, which is about 14 yrs old. ... A: It is a cap. start, cap. run. and your capacitor is probably shorted. Some, but not all, ...
Single phase pump motor runs but not for long	1/19/2008
Q: I just took the back off the a Flint and Welling Pump and motor combination because it was humming ... A: It sounds like you still have a open circuit in the starting winding. The capacitor also needs to be ...
Furnace Motor wireing 1Ph 115V	1/17/2008
Q: My original motor has a different wire color code. Red,Blue,Yellow,black WHITE,one brown, w/ a three ... A: Kinda confused here. You said the red and blue were capped off, and then say the yellow was was ...
Same spa problem	1/9/2008
Q: I found your response to a GE spa motor question from last fall and I'm encountering a similar ... A: Not knowing how your motor is wired, it would be hard to give you a good answer. Have you tried ...
Auto lift wiring	1/7/2008
Q: I have a 2 post auot lift. On the motor plate it says: 3hp 220v 20 amps. There is also a saftey shut ... A: I would go with a 30 amp breaker, as a 20 is at the full load current of the motor, and may give you ...
Wiring of magnetic switch for air compressor	12/28/2007
Q: i recently bought a compressor from an auction the mag switch was removed i purchased a new switch ... A: Coil voltage must go into the line side of the pressure switch. The load side of the pressure switch ...
connecting a 220 volt 1hp leeson motor	12/23/2007
Q: Jones , this motor will be used to run a blower on a wood fired evaporator. There is no wiring ... A: You will only need the two wires coming from the breaker. Connect one to T1 and T5, and the other to ...
current variation	12/14/2007
Q: sir i have big confusion about the load current of the motor.my question is for example a 11KW motor ... A: I think you are confusing current with voltage. The voltage may be the same, but the ...
3 phase utility costs (via rotary phase converter)	12/9/2007
Q: Charles, My wife and I purchased 5 used Sewing Machines, a Straight Knife Cutter, and a Cloth Drill ... A: I totally agree with what you said. Just remember, you don't pay for voltage, or amps. You pay for ...
hi	12/6/2007
Q: how do you test if a 1 phase motor is bad I know how to test a 3 phase motor with a megger can u ... A: First you will need a insulation tester, such as a megohm meter. Then you will need a meter that ...
Motor Capacitor	11/28/2007
Q: I have a capacitor for a 1/4 HP motor, marked as CBB60 SH, 20 mfd, 250 volt AC, -25/85Deg. C. The ... A: All you need is a 25mfd/250 or 370 volt run capacitor, usually available at any motor service ...
Wiring a Leeson 3/4 HP Motor	11/21/2007
Q: Charles, I have an old Leeson capacitor start motor I want to use to make a disk sander for my shop. ... A: If all wires are connected to terminals, your line voltage will connect to terminals #1 and #4. To ...
Change motor wiring from 230VAC to 120VAC	11/11/2007
Q: I bought a used Speedaire compressor with a 2HP Dayton motor. It's wired for 220VAC 1ph, but I need ... A: I could not locate any connection diagram for this motor. The only thing I can supply is the ...
star delta starters	11/5/2007
Q: Hallo Charles, Making sure that when replacing a bad motor with a good one that the motor does not ... A: As I only do in shop repairs on motors, I seldom see how the contactors are wired. As I am out sick ...
2 speed electric motor	11/2/2007
Q: i have a 2 speed motor on a hot tub pump. the pump runs fine on the low speed. when switched to hi ... A: I believe you may have a loose wire on the stationary switch, or a shorted winding on the high ...
wiring 1ph 220v electric motor - Doerr	10/21/2007
Q: I have a 1HP Doerr electric motor. The nameplate indicates that it can run on 110v or 220v. It was ... A: Line 1 is T1. Line 2 is T4%T5. T2,T3,T8 are tied together and insulated. If you have what we call a ...
motor tripping the breaker	10/18/2007
Q: I have a 10 hp three phase motor running acooling tower fan it`s pulling 26-28.5 amps when i check ... A: I really need to know what voltage you are using. If you are using 230 volts, the motor is pulling ...
Single phase motor	9/29/2007
Q: We have a reversible capacitor start 230 VAC single phase motor. It is manually switched with a ... A: The switch is wired incorrect, leaving one side of the 220 volt line energized, letting the motor ...
Reversing Electric Dual Voltage Motors	9/26/2007
Q: Are all dual voltage motors reversible through a drum switch. I am assuming the motor I have, GE Mod ... A: Sorry Bob for the delay, I've got a touch of the flu, and not been up to par. Here is a diagram for ...
Reversing Switch	9/24/2007
Q: I would like to connect a Westinghouse 1/3hp, single phase 110v, 6.2A Motor that states on the lable ... A: Without actually seeing the connection plate, it would be hard to explain the connection. This might ...
3 phase motors	9/17/2007
Q: I'm from the UK working in Africa and using equipment from both Europe and the US. I'm not an ... A: Most motors rated for 230 volts will operate ok on 208 volts. You will have a slightly higher ...
condenser fan wiring	9/5/2007
Q: I have a 15 y/o central air unit in which the condenser fan failed. A direct replacement was ... A: Yes. But you will still need to use the double capacitor to run the compressor. Put the black wire ...
Mr. Slim	8/31/2007
Q: I'm trying to put in a Mitsubishi Mr. Slim (24,000) btu heat pump. The outside unit calls for ... A: Use the black and white wire for your 230 volts. the bare wire will connect to the grounding bar in ...
3 phase power supply to single phase power supply	8/30/2007
Q: i would to know the correct method to split a 3 phase power supply to single phase power supply ... A: Each Leg of the three phase service can be used for single phase, as long as each leg is equal in ...
drum switch wiring	8/20/2007
Q: Charles I have read so many different answers, I'm thoroughly confused as to how to wire this. ... A: handle a 1 b c 2 d e 3 f To test switch, disconnect ...
Dimming lights	8/2/2007
Q: I have some lights dimming in the house when I turn on other items and it is a concern. Everytime I ... A: Your dimming problem is caused by a drop in voltage, when something with a large current draw ...
Bandsaw 3P 415V motor	8/2/2007
Q: I am currently having a bit of a snag with the motor of a bandsaw. First of all the electromagnetic ... A: My best guess would be a single phase condition, or either a turn to turn short in the windings. ...
a.o. smith motor wiring	6/27/2007
Q: S# c56a04a19 Ser 2j01 type c. want to run 110 volts clockwise. no need to reverse. Has 8 wires ... A: Because this is a specialty motor, I have no info as to the correct wiring diagram. They are not ...
Single Phase Motor	6/24/2007
Q: I have two identical single phase capasitor starting motor with centrifugal switch in them.. The ... A: Your connection is correct. Motor B has a problem, either in the windings or the start switching ...
calculation	6/20/2007
Q: I have a motor of 1 hp single phase but there is no capacitor rating on motor so i want to know how ... A: I know of no way to size a motor capacitor, other than trial and error. Capacitors are sized at the ...
AC Internal wiring	6/8/2007
Q: I have a Magnetek (century),5hp,single phase,230VAC,2 capacitor motor that has all wires pulled off ... A: Have a look here, ...
6-pole drum switch	6/7/2007
Q: Sorry, it's me again, I guess I neglected something when I sent my question to you. I see that your ... A: The connection you looked at has a internal overload (P1&P2) If you don't have those, just ...
hospital grade wiring	6/6/2007
Q: I received a treadmill that runs on 230VAC, 12 amps. The plug has three prongs (line, neutral and ... A: On a 230 volt single phase circuit, the "neutral" is the ground. If you remove the covers from your ...
whole house fan	6/3/2007
Q: I have a Dayton motor, three leads plus ground, T-1 line , T-2 high, and T-4 low...I need to wire ... A: O O T2 O O L1 (black from timer) O ...
wiring diagram for an electrical switch on a 220V line	6/1/2007
Q: How do I wire an on/off switch to turn a pump on/off on a 220V line? A diagram would be most ... A: Is this a three phase motor? If so, then you will need a 3 pole switch or disconnect,rated for the ...
wiring diagram for an electrical switch on a 220V line	5/31/2007
Q: How do I wire an on/off switch to turn a pump on/off on a 220V line? A diagram would be most ... A: You will need a double pole switch. Connect the lines from your breaker, white and black to the top ...
Capacitor question	5/31/2007
Q: I recently purchased a auto lift (used) that I'm having some trouble with. It doesn't lift to ... A: From what I can gather, you installed a start capacitor in place of the run. This is a no-no. The ...
reversing switch	5/30/2007
Q: I just purchased a Leeson Model # M6C17FB11H, 1/2 HP 115/208-230 V. to run my wood working lathe. ... A: What is the make and model of your drum switch? Maybe i can find a schematic of it. The dashed lines ...
reversing switch	5/30/2007
Q: I just purchased a Leeson Model # M6C17FB11H, 1/2 HP 115/208-230 V. to run my wood working lathe. ... A: Can you double check your drum switch connections? Every terminal should read to at least one more ...
reversing switch	5/25/2007
Q: I just purchased a Leeson Model # M6C17FB11H, 1/2 HP 115/208-230 V. to run my wood working lathe. ... A: In a single phase connection, the start winding determines the rotation of the motor. The start ...
reversing switch	5/25/2007
Q: I just purchased a Leeson Model # M6C17FB11H, 1/2 HP 115/208-230 V. to run my wood working lathe. ... A: You would need a reversing drum switch, like this one, ...
reversing a motor thru a swich	5/21/2007
Q: I would like the motor to reverse occasional and there is a jog forward switch can I change this ... A: What voltage are you going to use? Here is a diagram for a reversing drum switch, 230 volts, ...
115v to 22v motor	5/21/2007
Q: I purchased a new spa pack (heater and controls)with 220v controls for a 2 speed motor. I looked at ... A: Not knowing how the heater and controls are connected, I would hesitate to try to answer your ...
Motor housing dissassembly	5/17/2007
Q: Charles, I recently "inherited" a small squirrel cage blower which I was hoping to use to make an ... A: Don, as you already know, it should have came apart after you removed the four thru bolts. I have ...
Run and Start Capacitor	5/12/2007
Q: Goodday.. What is meant by run and start capacitor? A: A run capacitor is used for reducing the amperage draw while the motor is under load. A start ...
Lathe motor repair	5/4/2007
Q: I have a lathe that I am attempting to repair. It runs a single phase 220v four pole motor. The ... A: Are you reading each wire to ground? No single wire should have 220 volts. If this is a single phase ...
3 phase motor connections	4/30/2007
Q: Is there a way, using a multimeter, to read just the line connections, say at the contactor load ... A: I know of no way to tell using resistance readings, and if I did, your would need to know the ...
START/RUN CAPACITOR TESTING	4/29/2007
Q: MY OLD COMPRESSOR HAS A WESTINGHOUSE 11/2 HP TYPE FT 1725RPM sf1.15 ph1 v115/230 A14.4/7.2 ... A: The 540-600 is the start capacitor, and would be the most likely to cause your problem, but the run ...
3 phase motor connections	4/27/2007
Q: Is there a way, using a multimeter, to read just the line connections, say at the contactor load ... A: Check the voltage at the contactor, and then look at how your motor is connected. For 230 volts, ...
connecting 120vac motor to 220 vac single phase	4/16/2007
Q: Mr. Jones, I have an air compressor with a 2 hp motor that is wired for 120 vac. I want to connect ... A: Connect black and white to the line side of the pressure switch. Connect a black and white wire from ...
Motor wire connections to 6 pole switch	4/15/2007
Q: I am wiring a boat lift motor to reversable 6 pole switch like what your scetch diagrams. I have ... A: I have received your question, and will work out a diagram for you. Paul, I'm sorry for being so ...
reversing motor control problem	4/10/2007
Q: I have a Marathon Electric 3/4 hp motor (model # 56c17f5326)that I'm trying to install. I'm using a ... A: I tried to find the switch using the number you provided, but no luck. As my company is a cutler ...
3/4 hp delco model A8525	3/20/2007
Q: This is an old 120/240 motor. The connecting studs are marked 1 thru 6. The wires out the motor ... A: It is very old! I have no info to find out which numbers are your start winding leads. This is one I ...
Bremas Switch and a Dayton 6K346	3/11/2007
Q: I have a boatlift that had a MagneTek 3/4HP motor on each side for raising and lowering our boat. ... A: If you can remember which colored wires were connected to #8 and #5 on your leeson motor, disconnect ...
Capacitor sizing problem	3/8/2007
Q: I have a GE motor missing the capacitor. Is there a formula for calculating the proper size ... A: Sorry but no formula is available. Capacitors are sized at the the factory. Try a 200-250 ...
1-phase compressor motor	1/17/2007
Q: I have an air compressor with a single phase electric motor on a 120v, 20 amp dedicated circuit. It ... A: I really don't like to test capacitors with a volt meter, it doesn't give a accurate reading. To ...
DPDT reversing switch for Capacitor Start motor.	1/13/2007
Q: I wired it as you had drawn, but either position of the switch trips the breaker. I removed the red ... A: You should have 6 wires coming out of the windings. Four of which should be labeled 1 thru 4. These ...
DPDT reversing switch for Capacitor Start motor.	1/7/2007
Q: I have an old 3/4 hp Delco motor Type CS which I assume means capacitor start. I would like to ... A: It seems your question was not delivered to my inbox, and the automated system sent me a email ...
wiring a Single phase motor	1/2/2007
Q: I am installing a roller shutter garage door. I have a "brooke crompton starter switch", and a 1/2 ... A: This is a generic wiring diagram for a drum switch. ...
Four wires from an old single phase motor	12/30/2006
Q: I found a Vaile-Kimes "Single Phase Repulsion Induction" Motor, (Plate states 110 Volts,60 ... A: First, sorry for the delay, due to holidays. Without numbers or something to go by, I have no idea. ...
220v single phase motor to switch wiring	12/15/2006
Q: This looks like a great site and I apologize if I missed the answer I am looking for in my earlier ... A: Vic, inside your starter (switch) is a coil. This coil must be energized for the contacts to come ...
PSC Motor Reverse Rotation	12/15/2006
Q: Charles Thanks for your prompt answer to my question. When you say reassemble the motor backwards do ... A: The switch will be mounted on the endplate where the wires come out. It will have two wires ...
PSC Motor Reverse Rotation	12/13/2006
Q: I need to reverse the normal rotation of a Permanent Split Capacitor Motor. This motor has an arrow ... A: If this motor has a internal switch, it is non-reversible, as they will be marked on the nameplate ...
tried reversing but wrong	12/13/2006
Q: I have a question about a similar motor you've already answered. on my dual voltage 3HP motor has ... A: Your motor is not field reversible, if it doesn't say so on the nameplate. Compressor motors, like ...
Reversing single phase motor with drum switch ?	12/11/2006
Q: I have an old british pillar drill, originally 3phase, now fitted with a single phase motor. Using ... A: This diagram here, http://static.flickr.com/59/187576722_f686c5884a_o.jpg This diagram shows ...
Another reversing switch question	12/5/2006
Q: I did see these drawings from answers to other questions. My problem seems to be that the start ... A: Randy, first disconnect your rev. switch from the motor, and rewire it for a standard connection, ...
Another reversing switch question	12/3/2006
Q: Have a Dayton 3/4 hp 120 / 240 volt motor (4K859BA). Wired 120 volt. When connected to the reversing ... A: It looks like you have a problem in your start winding connection. Have a look at these wiring ...
wiring 220v Baldor motor to reversing cam switch	11/26/2006
Q: Charles, I'm trying to wire a Baldor #L3504 motor (220v) to a Bremas reversing cam switch. The ... A: Robert, to be honest, I have never had a opportunity to see one of these type switches. Looking at ...
Extractor fan motor wiring	11/26/2006
Q: I removed an extractor fan to have it cleaned. I and never noticed at the time that it has 3 wires ... A: It would be hard for me to advise you on this, because I don't which color is common out of the ...
correct wiring to motor single phase	11/20/2006
Q: 1 wire to earth 1marked u 1marked v on switch drawing is neutral wired to u and live to v. A: You will have to be more precise with your question. As I am in the USA, we do not use the letters U ...
2 speed motor stuck in hi speed	11/19/2006
Q: I have a GE 2 speed motor (Mod #5KCR49WN2340X) that is on a hot tub. As soon as power is applied it ... A: This sounds like a switching problem to me. There should be a diagram on the motor itself, showing ...
Reverse wiring motor for lathe	11/17/2006
Q: The switch is a Dayton 2x440a. Do I remove the wires from the terminal block on the motor and take ... A: Yes, you will have to remove the wires (1, 4, 5, 8) from the terminals. You should be able to use my ...
Electric motor application	11/16/2006
Q: Would a single phase motor of like horsepower from a compressor be one that could be used on a ... A: Most compressor motors are 3450 rpm. Lathe motors are usually 1750 rpm. It will turn really, really ...
reversing old motor	11/5/2006
Q: I want to reverse a old electric motor. It's a Centry 1/2 h.p. The wires are labeled 1-5. 1,2,5 are ... A: You seem to be one wire short. You need to have a wire labeled #8. This motor must be really old, ...
Motor wiring	11/2/2006
Q: Charles- The info on the plate is Type RL FR 2B5G HP 1/6 V115 5 AMP RPM 1725 Ph 1 ... A: John, it seems that you may have a condensor motor, if you do not have a outside connection plate. ...
Motor wiring	11/1/2006
Q: Yes I was not sure about the horsepower being enough but was going to use it for something else ... A: John, it seems that you may have a condensor motor, if you do not have a outside connection plate. ...
electric motor is connected for 110 or 220?	10/28/2006
Q: I bought an old compressor with a 2hp single phase motor. There is no wiring diagram. The leads in ... A: Peter, your motor is connected for 220 volts. For a 110 volt connection, connect 1,3,S for line ...
is a motor going bad	10/25/2006
Q: I'm looking for some kind of predictive measure to help predict a failure before hit happen . I ... A: Motors running under a normal load will produce a certain amount of heat. Most motors have a cooling ...
500' circuit run	10/25/2006
Q: I have decided to take your advice and run electrical service to the barn. In my county I am able to ... A: Whats ok here in my part of Alabama may not be ok in your state. For a 100 amp service here, a #8 ...
electrical motor- changing rotation	10/25/2006
Q: I just sent you a question about changing the motor rotation from ccw to cw and dicided to take ... A: Now we got something to work with. Connect it to your desired voltage, and to reverse rotation, swap ...
is a motor going bad	10/24/2006
Q: What a ways that a person can tell if a motor is going to fail in the near future (say within a ... A: Check the current draw of the motor(Amps) with the nameplate rating for a overload problem. Are the ...
230v single ph. motor for compressor	10/22/2006
Q: Have a Ajax motor that the wires got pulled off when it was being loaded.It has 2 capacitors on ... A: First, are the wires pulled out of the windings itself? If so, then it would be far to complicated ...
Wiring a reversing switch to a 110V motor	10/21/2006
Q: my motor has P-1 to line 1; Blue connected to T1; Black, P2 and Orange connected: Red,white and ... A: Have a look at these diagrams and see if they can help you. ...
115V, 2Hp, 2 speed, GE Motor - no Hi speed	10/20/2006
Q: I just got a hold of a 115v 2Hp 2 speed GE motor that I would like to use for a water pump project. ... A: I'm not sure what you are refering to, when you sau Ov to hi or lo. The white wire from your 115 ...
3 phase not working after power compay visit	10/17/2006
Q: I have a small shop with 3 phase power to my lathe, band saw and milling machine. One leg of the ... A: It sure sounds like your single phasing. You have completed all the tests I would recommend. The ...
500' circuit run	10/11/2006
Q: We plan to hook 2 110 volt 15 amp circuits onto my home electric. They will both be about 500 feet ... A: Man, that's a mighty long run. You might come out cheaper having your power co. set you up another ...
contactors and motor starters	10/11/2006
Q: what is the difference between a contactor and a motor starter? A: Ray, contactors and starters a basicaly the same as operation goes. They both utilize low voltage to ...
reversing my elect motor	10/10/2006
Q: Yes it is a drum switch.Thanks for the help, but there seams to be 6 connections in your drawing. I ... A: Every manufactor has differences in the way thier motor is connected, that is, the wiring for thier ...
reversing my elect motor	10/9/2006
Q: but there seams to be 6 connections in your drawing. I do not know what type of switch I have only ... A: The drawing I provided has the line voltage connected at the drum switch. (L1&L2) This assures that ...
reversing my elect motor	10/8/2006
Q: I have purchased a new single phase motor as a replacent. The replaced GE motor was reversed using 4 ... A: From your question, I assume you are refering to a reversing drum switch, as you said you know how ...
My new 3 phase service and motors	10/8/2006
Q: I am in the process of hooking up a 3 phase service to my shop. The saw I intend to get has a 230 ... A: I recomend you go with the 120/240 service. Most modern motors are rated for 230 volts. Using a 230 ...
generator/air comp.	10/7/2006
Q: I have a 5500/8500 gen. using the locking 240 4-prong plug connected to size 10 to a ... A: Robb, it seems that your wiring to the compressor is incorrect. I believe your compressor is trying ...
Where to find local or mail order capacitor?	10/7/2006
Q: yes this a run starter,can u please help?I have been looking for this part for a month now and I ... A: David, seems like you didn't get my previous answer. I apologize for that. And if you did, here's ...
Type KC 1/3 motor for South Bend Lathe	10/5/2006
Q: OK Charles, I do have a follow up.. I went back and looked at your NEMA wiring standard and then ... A: Yes, the ends of the start winding are probaly located behind the switch connection plate. They ...
Type KC 1/3 motor for South Bend Lathe	10/4/2006
Q: I acquired an older 9" South Bend lathe with a Type KC 5KC17AB899A motor..It says 120 / 220.. this ... A: I'm not sure what your asking. Can you be more precise in your question? I cannot, because of the ...
Electric Motor Rotation	10/3/2006
Q: We have a single phase, 220 volt grinder. It uses two 115 volt phases to get the 220. The two ... A: Reversing wires on a 220 volt, or 110 volt circuit will not cause a reversed rotation. Only ...
motor reversing	10/2/2006
Q: I HAVE A SIMILAR PROBLEM AS 7/11/06SINGLE PHASE LATHE. I HAVE A 1HP MOTOR RUNNING ON 220.IT IS GE ... A: I recieved your question, and will upload a diagram to show you how to wire your drum switch. I will ...
DAYTON MOTOR	10/1/2006
Q: I HAVE A DAYTON 1 HP REVERSABLE MOTOR MOD 5K432E IT IS WIRED FOR 115 VAC WOULD LIKE TO GO TO 220 VAC ... A: I have no info for this motor. It is a discontinued model from ww grangier, who made it. the only ...
Troubleshooting 3 phase motor	9/28/2006
Q: Could you suggest a line of investigation? The amperage is unbalanced on a motor load. 230 3 phase, ... A: I believe you are right in your thinking. Have you checked each leg to ground, for a individual line ...
Capacitor for dayton motor	9/27/2006
Q: I have a 2hp Dayton model 6K313H electric motor that i need a capacitor for,could you please give me ... A: Unfortunatley, there is no " look in the book answer." Put 5 motors side by side, from different ...
replacing a capacitor	9/26/2006
Q: Charles, Thanks for the quick and detailed response to my question. I seem to have something a ... A: The wire you are asking about has to connect to one side of the switch located inside the motor. to ...
run a single phase w/ 3 phase power	9/25/2006
Q: I have 208 3 phase power in my plant. My new machine coming in has a motor stating 220 VAC, ... A: Yes. From what little information you gave, it seems you will be using a 10HP single phase motor. I ...
Electrical wiring	9/25/2006
Q: I am in British Columbia. I am installing a hot tub having a 240vac 50A requirement about 150ft ... A: #4(copper 140amps, aluminium 110amps) will be more than enough to handle the amperage shown. I'm ...
replacing a capacitor	9/24/2006
Q: I recently bought an automotive vehicle lift from an auto repair shop. After assembling the huge ... A: I am going to assume that this is a single voltage motor, set rotation. If this is correct, lets ...
How to read a voltmeter	9/21/2006
Q: I am borrowing a Meterman DM7, but not sure how to read it. I am planning on making a haunted house ... A: You are reading 123.5 volts. You will have to use a amp meter to read your current draw, or amps. ...
wiring Baldor PCL3519M electric motor	9/18/2006
Q: Ok, I've followed the wires back to the breaker box. The red and black wires from the outlet are ... A: You can disregard the white wire. Tape up the end so it is insulated, and won't contact any ...
wiring Baldor PCL3519M electric motor	9/18/2006
Q: I have single phase power. Thanks.I have a 3 HP Baldor PCL3519M electric motor. I'm looking at the ... A: The reason I was asking if you had three phase is that you have to many wires. You will need to ...
Dayton Motor Wiring Question- Reversing	9/10/2006
Q: I have a Dayton capacitive start 1HP 115/230V 3450rpm motor (Model 9K4550). The wiring diagram on ... A: What you have is a "set" rotation motor. My guess is this was originally a pump or compressor motor. ...
Wiring forward/reverse 3 phase switch	9/6/2006
Q: Just bought a used lathe and it came with a forward/reversed/stop switch installed on the machine. ... A: Tim, looks like you are describing a pushbutton controller that operates a set of reversing ...
1 phase 220V Motor Reverse Wiring	9/6/2006
Q: I have a John S Barnes 2HP 1 Phase 208-230V motor. It has a direction of rotation sticker on the ... A: What you have is a "set rotation" motor. It is connected this way so someone can't reverse the ...
Variac	9/2/2006
Q: While this question does not involve motors, your profile appears to be among the most qualified on ... A: Actually I do use a "Variac", which is really just a trade name, for a variable autotransformer ...
3 phase 230 motor	8/31/2006
Q: how to wire in an on/off switch,do i use a triple pole single throw switch? A: That will depend on the HP of the motor. A motor starting across the line will have a very large ...
Furnance blower motor problem	8/30/2006
Q: I have a 120V furnace blower motor that hums, but won't run. The axle spins freely. I removed it and ... A: That cap. test is not totaly reliable. I would purchase a new one, as they are not expensive, and ...
how to wire blower motor	8/29/2006
Q: I have an old air handler with emergency heat strips in it that I would like to wire up to my ... A: I would wire them seperately. Having them both start at the same time will put a serious load on ...
auto blower motor/switch	8/25/2006
Q: I have a 2001 sebring limited convertible. The blower motor suddenly stopped working on speeds ... A: Although auto motors are out of my expertise, this is probaly a switch problem. If the motor runs ...
wiring a 220 VAC electric motor	8/24/2006
Q: Sorry, I should have included this information in my first question. The motor I am wanting to wire ... A: Connect the black wire from your power to P1, and the white wire to T5 and T4. If the motor is ...
compressor hard to start on generator	8/8/2006
Q: I have a 6500W generator and I am trying to run an air compressor. Sometimes it will start ok but ... A: Sorry for the delay in answering, but I didnt get it originally. Have you checked the actual output ...
Testing 3 phase motors	8/6/2006
Q: How do I test or more importantly what results should I expect on a good motor when testing a 3 ... A: Test each phase for continuity to the others. If any one phase fails to read, you have a open ...
Using a 1phase in a 3 phase motors place	8/1/2006
Q: If I have a 5hp 3 phase motor, what size 1phase motor would I have to repace it with ? A: 5 HP. Just be sure your circuit is large enough. A 5 Hp single phase motor will pull 56 amps on 115 ...
Single phase trouble shooting	7/24/2006
Q: I have a 1 hp single phase cap start and cap run motor to run my air compressor. It is approx. 5 yrs ... A: First of all, the reset button. If you tried to reset right after it quit, it may have still been to ...
Carrier Condenser Fan Motor Not Turning	7/20/2006
Q: Charles- I have a Carrier 38ED036300 (vintage 1986) Split system. Today, the compressor fan stopped ... A: First of all, the capicitor is a run capacitor. It is always in circit with the windings. The only ...
motor wiring	7/19/2006
Q: i bought a south bend lathe and the person i bought it from said that it was a 440 3ph 4.5hp motor. ... A: I have no idea what you have. Unless it is a special motor, I have never saw a 4.5 hp motor. Most 2 ...
3 Phase Motor Question	7/16/2006
Q: I recently acquired a sander with an Italian 440 volt 60hz 3 phase motor, it is 2 speed, 1750 & 3450 ... A: If you only have six leads out of the motor, you will not be able to run on 208 volts. Depending on ...
3 phase motor connection	7/14/2006
Q: I have a freind who said that you can connect a 3 phase motor to a single phase line. In this case ... A: You must have three lines of power to use a three phase motor.A phase converter, using either solid ...
wiring a 220 switch	7/12/2006
Q: I have a Arrow Hart Manual Controller Switch, it's basiclly an ON/OFF switch(looks like a regular ... A: It seems that you have a 3 pole switch. Wire it this way, on the right side, holding the toggle ...
SINGLE PHASE LATHE	7/11/2006
Q: WE HAVE A SOUTHBEND LATHE,IT HAS A GENERAL ELECTRIC 3/4 H.P 230 VOLT, SINGLE PHASE MOTOR ON IT. WHEN ... A: Bob, #1 and #4 by NEMA standards are where you connect your power. The standard connection for 230 ...
SINGLE PHASE LATHE	7/6/2006
Q: WE HAVE A SOUTHBEND LATHE,IT HAS A GENERAL ELECTRIC 3/4 H.P 230 VOLT, SINGLE PHASE MOTOR ON IT. WHEN ... A: Installing a reversing switch on this type of motor requires disassembly of the motor. It is also ...
How to connect 3hp. peerless electric motor up ?	7/2/2006
Q: The motor plate show 115/230 60gyc 36/18 amp C2243A is the serial number alternating current double ... A: I'm not familiar with the lead markings of this particular motor. This must be a very old motor, to ...
1 phase motor windings	6/25/2006
Q: I have a question about testing single phase motor windings. What would be a typical ohm reading ... A: Jorge, unless you know the winding data of the particular motor you are testing, it is impossible to ...
replacing bathroom light/fan vent	6/24/2006
Q: I had a motor on a vent fan go bad.The unit is wired where one switch controls the light and the ... A: You have one of three possible problems. No voltage, bad switch, or bad motor. Just because its new ...
wiring start & run capacitors to a 220v motor	6/22/2006
Q: Can you show me how to wire two separate start & run capacitors to a 220v electric motor with ... A: I apologize for taking so long to get back to you, but I have been on vacation. To answer your ...
a/c condenser fan not running	6/11/2006
Q: Charles: I have 1/6 hp one phase 0.9 amp motor. I disconnected motor wires and checked continuity ... A: It seems my original answer may have not been sent. Not knowing the wiring data in the motor, it ...
220 single phase motor on a 208 3 phase circuit	6/6/2006
Q: Is there any problem using a 220v single phase motor on a 208v 3 phase circuit? A: Yes it is possible, using only two legs of the three phase circuit. Be advised though, that the ...
Motor Run Capacitor	5/29/2006
Q: I have a 1/2 hp motor which appears to be permanent split phase (single cpacitor, no centrifigul ... A: Alan, I have not come across any set rules on capacitor sizing. all manufactures use different ways ...
50/60 cycles	5/24/2006
Q: I am in Afghanistan and I would like to know what will happen if I run a 2oo V 50 cycle refrigerator ... A: Ted, before I get to your problem, I believe you must be a Military Person. First let me Thank You ...
I just visited a site that...	4/28/2006
Q: I just visited a site that talked about capacitors, but was dissappointed, cause they didn't go into ... A: Almost, but not all, single phase motors use capacitors. There are two different types. One is a ...
ok give the generator	4/22/2006
Q: ok give the trype of protection for generator and thank you for you effort A: This is my last request for information on what you are asking me. "Protection is to general" What ...
Voltage spike and flickering	4/19/2006
Q: I am not certain this question is in your area of expertise but I am hoping you will have some ... A: Marc I'm afraid that your circuits are maxed out. Even if it is a small apartment, two circuits are ...
Single phase motors	4/12/2006
Q: I work as a tech and I came across a single phase motor 2 caps (start and run external) its a simple ... A: It sounds like you have a open circuit in either the start or run windings. Inside the motor is also ...
testing of 3 phase motors	3/25/2006
Q: how do you do an insulation test using a megger on a motor A: To use a megger, connect to the line side of one of the motor leads with the red test lead. Connect ...
3phase to single phase motors	3/8/2006
Q: can you help me to wire a motor to single phase. the motor in question is wired for 3 phase. i have ... A: I'm sorry Terry, but you can't use a 3 phase motor on single phase unless you use a phase converter. ...
three phase electric motors	3/1/2006
Q: I WANT TO PURCHASE A LARGE PRE-WAR AIR COMPRESSOR AND INSTALL IT AT MY WORK. THE MOTOR DRIVING THE ... A: Bill, my first question to you would be, where are you located? That you have 3 phase power in that ...
1 ph motor wont start but will run with a turn.	2/11/2006
Q: i have an old motor used for grinding. it wont start by the switch, only when you spin the shaft. it ... A: First, I need to know what type capacitors you have. Some motors have both start and run caps. ...
Hi-Pot	1/13/2006
Q: I've worked in electrical maintenance and have heard the term "hi-pot" used when talking about motor ... A: "Hi-Pot" is a insulation test using DC voltage. We very seldom use this particular test anymore in ...
3 phase motor wiring (lathe)	1/12/2006
Q: I have a lathe with a three phase 5hp motor. I am tring to wire it up. I have 3 cutler hammer ... A: Your best bet would to do away with all those contactors, and install a forward and reverse drum ...
electric motors	8/20/2005
Q: ..charles c jones what is normal temperature for motors A: Without knowing your specific application, I would be reluctant to describe what is normal. Most ...
Motor won't start	6/17/2005
Q: I have a ventilater which hasn't been run in about a year. It's a Loren Cook Belt drive. The motor ... A: If this motor is a capacitor start, you may have a bad capacitor. It is possible that trash may be ...
ambient temperature	5/11/2005
Q: I am working as an Electrical supervisor in India's leading tyrecord fabric manufacturing company ... A: Ambient Temperature is the is the atmosphere temperature surrounding the apparatus. This does not ...
3 phase motor- single phase	3/20/2005
Q: I heard of people connecting a 3 phase motor to single phase supply with the use of capacitors. Have ... A: First let me apologize for the delay in answering. There is a way to do this, but at the moment I ...
drawing power	3/11/2005
Q: Can you give me an answer how a motor draws power from a transformer. I cannot see how the motor ... A: I'm not quite sure what your asking here. I will confess that i"m not a engineer, but maybe if you ...
Switch Wiring for 220V Motor	2/2/2005
Q: I am in the process of rebuilding some shop tools that are driven by 220 VAC motors. One of these ... A: Looking at the connections you gave, it looks like that maybe you have a motor with both start and ...
5 hp motor	1/15/2005
Q: I have a 32 gallon compressor run by a 5hp electric motor. It runs off 120 volts ac but I was ... A: http://www.voltageconverters.com/customkititems.asp?kc=PBI3500-0AWG Have a look at this. Quite ...
4 general motor questions	12/15/2004
Q: I've always assumed the motor used in these applications was a synchronous motor...it operates on AC ... A: As load increases in a induction motor, the current also increases. If the load continues past the ...
220volts to 208volts	11/17/2004
Q: got a good deal on a convection oven that is rated at 208v 15amps single phase. can it be used on a ... A: Let er rip! no problem there, as most any electric products will take a variance in voltage. A ...
Chuck, I have a snow blower...	10/23/2004
Q: Chuck, I have a snow blower that was given to me, alright fine I pulled it out of the garbage. I ... A: Whast you have there is a bridge rectifier. What it does is convert ac to dc. To test it, ...

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