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Re: snow plow wont turn right
To turn Left you need two cylenders. I think you only have one. Any one cylender will have three wires and a ground. The ground is always connected to the vehicle ground. The other two to the Single pole double throw switch. TOne wire and a ground runs the pump one way, the other wire and the ground runs the pump the opposit direction. For left and right you must have a similar pump, motor and wiring.
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Make sure you are using correct size fuse. If you are and there are no problems with the wiring to the pump. It has failed and needs to be pulled and replaced.
One check you can do is measure the resistance between the leads going down to the pump. Should be low resistance BUT NOT ZERO. I'll say anything over 2 but less than 15 ohms is good. If any two leads reads zero, it is a bad motor on the pump. If any two read infinity, the wire is broken or it is a bad motor on the pump.
SAFETY FIRST!!! Make sure you turn the power off before doing any resistance checks and you must disconnect two of the three wires before checking (if only two wires, just one).
The difference in the two pumps is that with a three wire pump the start and run capacitors are in the gray box. With a two wire pump the caps. are built into the motor. Because of this with a two wire pump you only need to run the 240v down the well to the pump. The yellow wire on the three wire pumps is the igh voltage wire that come from the start cap. I have used both pums but usually use the two wire because they are easier to hookup and the wire is cheaper because you only need to run three wires. (2 hots and ground) On large HP pumps you will always have three wire motors because the caps. get too big to get them in the motor. It is best to go three phase with big pump if you can.
This is a control valve problem. From you comment, it is clear that the control valve flows to one direction only. Please check the control valve of the snow plow that execute the angle to right or angle to left. Also check the pipelines before and after the valve. It must have a free flow of the fluid.
You got the idea, because both the motor carbon brushes and a weak battery is one of the major causes of your problem. So, have a check on these items. Furthermore, also check the oil as well as the oil filter if it needs to be replaced. When all the checks are done and fixed, I'm sure that you will get the best result . Hope this will help you.
IVE NEVER WORKED ON A SNOWPLOW BUT NOONE ELSE IS OFFERING ANY HELP. IT SOUNDS LIKE FLUID IS LEAKING BY THE VALVE AND PRESSURIZING THE LEFT SIDE ALL THE TIME. IT ALSO COULD BE YOUR NO-SPILL COUPLERS CLOGGED OR NOT OPENING FULLY PREVENTING FLOW OF FLUID ON THE LEFT SIDE. GOOD LUCK. JODY
On the front of the pump where there are two 11/16 hex plugs... one has a filter behind it, and the other (closest one to the valve block) is where the drop speed screw is located..
Be sure to do this adjustment with the blade on the ground!....
Remove the plug and use a 3/16 allen wrench to reach in and turn the drop speed screw. Turn it counter clockwise to increase the drop speed. They're fairly sensitive so only turn it about an 1/8 at a time...
Make sure you reinstall the plug before you recheck the drop speed or the back of your blade will get a bath of plow oil..