Where is the Hydraulic Relief Valve Zane?

The relief valve will be under the oil on the back of the hydraulic pump and just under the pto shaft. It is a tapered pipe thread into the pumphousing and can be removed and replace wity an 11/16th inch boxed end wrench. Sometimes it is necessary to cut the wrench off short enough to let it be turned under the pto shaft to remove and replace the valve. It can be done a lot easier if the PTO is removed but this is not really necessary if you have the right tool.

If you should remove the pto to get to the relief valve you should drain the oil from the lift before removeing it. There will be about 4 gallons of oil if only the hydraulic oil drain is opened. It takes 5 gallons if all the 3 drains are opened and it is completely drained. If the oil is dirty or milky looking it should be replaced.