Small Engines (Lawn Mowers, etc.)/Ariens s-12h


I picked up an Ariens s-12h the other day an brought it home to mess with. I got it running,lights work, and the mower deck/implement buttons work but I can't get it to move or the hydraulics to work? The deck won't even lift up. The trans fluid is full and I put the free wheeling valve lever up and down? Any suggestions? It's been sitting for about 10-12yrs if that helps

Did you review the Owner's manual?

Is the mower in free-wheel mode? (pg 8)

Did you drain the fluid and replace the filter?

That looks like a really well built machine...very heavy duty.  How much was it?

Did you try contacting a few members on this site?


Small Engines (Lawn Mowers, etc.)

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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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