Johndeere3720
Padawan Tractor Learner, Advertiser
- Joined
- Mar 14, 2009
- Messages
- 3,964
- Location
- NW Oregon
- Tractor
- Bobcat T62, MT55, E42R, E10, John Deere 4100
I have been down this road with several different makes of tractors. You're on the right track. The first thing to do is always check the fluid level and filter/screen to make sure they are able to pass fluid to the pump. Have you checked the linkage to make sure that something hasn't come loose or fallen out ( a pin, bolt or nut) and the valve is only being opened slightly? I have twice had 3PH problems that were linkage related. Do your hydraulic service but if that doesn't fix the problem the linkage is probably the next easiest thing to check that may cause this type of problem.
I checked out my linkage and it still goes up/down but wont lift over 150 pounds.