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If your lift went up on its own and won't come down its the unload valve. This means the top will have to come off, you will need to take the return spring and holder from the front of the ram cylinder then draw the unload valve plug. DO NOT DRIVE THIS OUT WITH A PUNCH FROM THE BACK! We are talking about sensitive, precision made parts. A little gentle tap to free the valve is OK then polish with a metal polish to clean up any rust. Do not use any form of abrassive like emery paper. Its not really a bad job, just needs time and care. Any other help you need contact me via>Link Yes>Link you do have to have the PTO in gear even with a live clutch. A pin can be fitted in the frame where the clutch pedal moves to prevent the PTO stopping so giving you live hydraulics for loader work, ploughing etc. It has to be taken out to allow full clutch travel when using PTO driven implements. The valve you ask about diverts the oil from the pump to external services, isolating the ram cylinder. This means that the arms will stay in one place whilst you use the control lever to operate the loader. Always make sure the draft/position control selector is in draft, up. This means you will have control of the loader at all times. If you use Position Control to operate the loader or whatever you have on the end of your pipe, the lift can take over control and it will lift even with the control lever at the bottom of the quadrant. I have seen a load of grain emptied in the middle of a major road because the driver was operating in Position Control.
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