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2014-09-20 Workshop Manual, GGP Park 4 Hydraulic system 22
Adjustment
Warning!
Never screw out the adjustment screw too far, this will cause lost of steering
capacity.
After adjustment; Always check the steering capacity with the implement
lifter working against its stop.
Adjust the pressure (yellow line) by loosing the counter nut and rotate the adjustment
screw.
Turn right (against bottom) to increase the lifting capacity and to decrease the steering
ability.
Turn left (up) to decrease the lifting capacity and to increase the steering ability.
Lock the counternut after the adjustment is finished.
Adjustment procedure
1. The lifting capacity is set to about 1500
N / 150 kg at the factory. Measure the
force and adjust if necessary..
2. Drive the machine and test the steering
ability.
If the steering is comfortable, the
adjustment is OK.
If the steering not is comfortable,
decrease the lifting ability.
If it is possible to reach an adjustment,
where both the heaviest deck used can
be lifted, and the steering feels
comfortable, the adjustment is OK. If not,
see below:
If the steering is comfortable when the screw is in its upper position and the lifting
capacity is OK when the screw is in its lower position, replace the charge pump in the
HST.
If the steering is impossible to get comfortable even when the screw is in its upper
position and the lifting capacity is OK when the screw is in its lower position, replace the
torque converter.
1500 N
150 kg
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