I just removed the hydraulic Cylinder case to change the lift arm shaft and replace the o-rings and I put it back together and now the arms are not lifting at all? Any idea what the problem can be?
MX5800 Lift Arms Won't Raise
- Thread starter scatman
- Start date
My first guess would be trapped air.
My second guess it that when you reassembled everything, the piston/rod is out of time with the lift arm. As in not aligned on the spines correctly.
@North Idaho Wolfman is probably the guy you most want to hear from in this case.
My second guess it that when you reassembled everything, the piston/rod is out of time with the lift arm. As in not aligned on the spines correctly.
@North Idaho Wolfman is probably the guy you most want to hear from in this case.
Trapped air has absolutely nothing to do with it.
My first guess is you have the rockshaft arm/pushrod out of whack. Another possibility is the feedback and position control linkage is fubared.
Dan
North Idaho Wolfman
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Is it just an adjustment problem? If I pull back on the rod you can hear the relief valve as it is bottoming out. The problem is that the lever is hitting the bracket in the front.
Opened it back up and all of the linkage is good. Maybe something to do with the piston? Or would it need hydraulic pressure to move?
The lift obviously needs hydraulic pressure to operate. You are not answering my question.
If you hear the relief activate when you pull the rod the position control valve is opening and the hudraulic system is deadheading. That means you have pressure to the valve.
If the lift does not come up the piston is not pushing on the rock shaft lever or you dont have pressure to the piston. What if anything did you do to the valve?
Dan
North Idaho Wolfman
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Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Hard to tell for sure but it looks like the piston is fully "extended" but the lift arms are not in the full up position.
Dan
Dan
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Move the lift arms to push that rod as far in as possible and take a picture of the lift arm position in that state.
Why did you take this apart in the first place?
Dan
Why did you take this apart in the first place?
Dan
