Posted by pete 23 on June 25, 2010 at 10:59:27 from (173.87.147.99):
In Reply to: 806 hydrualics posted by bjd on June 25, 2010 at 09:18:24:
As you have already tried a known good relief valve (pilot relief valve) you have that covered. Sounds like you replaced the o-ring on the pump mounting plate as well (requires removing pump mounting plate along with pump)so you have that covered also. Could be blown o-rings in other places though not likely. I would pull pump,put one aux valve on demand, hitch lever not way down in action control range, apply air pressue to pressure port where you took pump off and listen for leaks. Most likely your pump is bad but a little more trouble shooting is always a good idea.
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