Lift arms won’t stay up.

[bcouch]

I have an old B7100 HST. The lift arms raise and lower as they should but they slowly drop while in the up position.
Any tips on what could be causing this?

 

[cthomas]

Gravity?

It is probably a slight seepage within the 3 point lift cylinder. The old Pasquali tractor does this and I just be careful and live with it.

 

[TheOldHokie]

I have an old B7100 HST. The lift arms raise and lower as they should but they slowly drop while in the up position.
Any tips on what could be causing this?

If the B7100 has a lowering speed valve close it fully and see if that stops or slows the drift.

Dan

 

[bcouch]

I have an old B7100 HST. The lift arms raise and lower as they should but they slowly drop while in the up position.
Any tips on what could be causing this?

Gravity?

It is probably a slight seepage within the 3 point lift cylinder. The old Pasquali tractor does this and I just be careful and live with it.

I think you’re right. I’ve watched a few YouTube videos and I’m going to replace the lift cylinder seal if I can find the right parts.
Thanks for the help.

 

[TheOldHokie]

I think you’re right. I’ve watched a few YouTube videos and I’m going to replace the lift cylinder seal if I can find the right parts.
Thanks for the help.

It could just as well be the position control valve. Before throwing parts at it I would suggest you try shutting off the lowering speed valve to see what effect that has.

Dan

 

[bcouch]

It could just as well be the position control valve. Before throwing parts at it I would suggest you try shutting off the lowering speed valve to see what effect that has.

Dan

I’ll try that first

 

[TheOldHokie]

I’ll try that first

Just FYI If the drift stops or slows down some/all of the leakage is through the position control valve. If no change the lift cylinder is indicated. Lift cylinder is a lot easier to fix.

Dan