KYErik
Platinum Member
- Joined
- Dec 2, 2005
- Messages
- 904
- Location
- South central IL
- Tractor
- 1977 AC 7000, 1980 JD 2840, 1963 Case 930, 1963 Ford 4000, 1943 Case SC, Case 530CK backhoe
There is no diff lock that I know of. I found a copy of the owners manual on ebay and read it pretty thoroughly.
Mine is the same way- I have better clutch pressure when it is cold and it slips worse and worse as it gets hotter until I eventually have trouble getting up a hill in 1st in low range. My trans pressure needle never makes it up into the green range of the gauge even when cold... I tried running some 40 weight hydraulic oil in it but i couldn't tell much difference. There is a spring loaded pressure relief valve under a plate on the left side just in front of the battery. I took that all apart hoping that there was just something caught under the seat of the valve and that was causing the low pressure, but it was clean. Otherwise, no adjustments/easy fixes. There is a canister type filter for the torque converter fluid just in front of the radiator (you will need to remove the metal grille). You could try replacing that filter- I did that and it didn't help. I also rigged up a trans fluid cooler, but couldn't really tell whether it helped. I asked the dealer about it and apparently there are some steel sealing rings on pistons that compress the clutch main clutch pack and supposedly, those sealing rings typically wear and break and leak enough fluid to reduce the pressure. It has been 6-8 years ago, but I priced all of the parts and they were about $500-600 (but of course you have to split it).
Mine is the same way- I have better clutch pressure when it is cold and it slips worse and worse as it gets hotter until I eventually have trouble getting up a hill in 1st in low range. My trans pressure needle never makes it up into the green range of the gauge even when cold... I tried running some 40 weight hydraulic oil in it but i couldn't tell much difference. There is a spring loaded pressure relief valve under a plate on the left side just in front of the battery. I took that all apart hoping that there was just something caught under the seat of the valve and that was causing the low pressure, but it was clean. Otherwise, no adjustments/easy fixes. There is a canister type filter for the torque converter fluid just in front of the radiator (you will need to remove the metal grille). You could try replacing that filter- I did that and it didn't help. I also rigged up a trans fluid cooler, but couldn't really tell whether it helped. I asked the dealer about it and apparently there are some steel sealing rings on pistons that compress the clutch main clutch pack and supposedly, those sealing rings typically wear and break and leak enough fluid to reduce the pressure. It has been 6-8 years ago, but I priced all of the parts and they were about $500-600 (but of course you have to split it).
