Gehl V270 - Page 81

917387/BP0310 77
Hydraulic System
Problem Possible Cause Remedy
Hydrostatic (drive)
system is noisy.
Hydraulic oil viscosity too
heavy.
Allow longer warm-up or
replace oil with proper
viscosity oil.
Air in hydraulic system. Cycle lift and tilt cylinders to
maximum stroke and
maintain pressure for short
time to clear air from system.
Also check for low oil level in
reservoir, fill as needed.
Drive motor(s) or hydrostatic
pump(s) have internal
damage or leakage.
Contact your dealer.
Right side doesn’t
drive in either
direction. Left side
operates normally.
Relief valves on rear
hydrostatic pump
malfunctioning.
Contact your dealer.
Right side doesn’t
drive in one
direction.
Relief valve on rear
hydrostatic pump
malfunctioning.
Contact your dealer.
Rear hydrostatic pump
malfunctioning.
Contact your dealer.
Left side doesn’t
drive in either
direction. Right side
operates normally.
Relief valves on front
hydrostatic pump
malfunctioning.
Contact your dealer.
Left side doesn’t
drive in one
direction.
Relief valve on front
hydrostatic pump
malfunctioning.
Contact your dealer.
Front hydrostatic pump
malfunctioning.
Contact your dealer.
Lift/Tilt controls fail
to respond.
Restraint bar raised. Lower restraint bar.
Hydraulic oil viscosity too
heavy.
Allow longer warm-up or
replace with proper viscosity
oil.
Hydraulic oil level low. Check oil level in reservoir. If
oil is low, check for external
leak, repair and add oil.
Solenoid valve
malfunctioning.
Check electrical connections
to pilot solenoid and repair.
Restraint bar or seat switch
malfunctioning.
Contact your dealer.