PRINTED IN USA 57 907808/CP0300
Hydrostatic System
Problem Possible Cause Remedy
No response from
either the
hydrostatic drive or
the lift/tilt systems.
Hydraulic oil viscosity is too heavy.
Hydraulic oil supply is too low.
Drive coupling failure.
Allow longer warm-up or replace existing oil
with the proper viscosity oil.
Check for low oil level in reservoir. Add oil.
Replace the coupling.
Traction drive will
not operate in either
direction.
Parking brake is engaged.
Hydraulic oil supply is low.
Control rod linkage disconnected.
Low or no charge pressure.
Hydrostatic pump(s) relief valves are
malfunctioning.
Disengage parking brake.
Check for low oil level in reservoir. Add oil.
Check linkage connection at control levers
and neutral centering mechanisms.
Reconnect linkage.
Contact your Gehl dealer for assistance.
Contact your Gehl dealer for assistance.
Sluggish response
to acceleration.
Air in the hydraulic system.
Automatic parking brake partially
engaged.
Hydraulic oil supply is too low.
Low hydrostatic system charge pressure.
Drive motor(s) or hydrostatic pump(s)
have internal damage or leakage.
Cycle lift and tilt cylinders to maximum
stroke and maintain pressure for a short
time to clear air from system. Also check for
low oil level in Reservoir, fill as needed.
Contact your Gehl dealer for assistance.
Check for low oil level in reservoir. Add oil.
Contact your Gehl Dealer for assistance.
Contact your Gehl Dealer for assistance.
Hydrostatic drive is
overheating.
Drive system overloaded continuously.
Lift/tilt or auxiliary system overloaded
continuously.
Drive motor(s) or hydrostatic pump(s)
have internal damage or leakage.
Oil cooler fins are plugged with debris.
Loader being operated in a high
temperature area with no air circulation.
Improve efficiency of operation.
Improve efficiency of operation.
Contact your Gehl dealer for assistance.
Clean oil cooler fins.
Reduce duty cycle; improve air circulation.
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