68 917001/CP0905
Hydrostatic Drive System
Problem Possible Cause Remedy
No response from
either hydrostatic
drive or the lift/tilt
systems.
Hydraulic oil viscosity too
heavy.
Allow longer warm-up or
replace oil with proper
viscosity oil.
Hydraulic oil too low. Check for low oil level in
reservoir, add oil.
Drive coupling failure. Replace coupling.
Traction drive will not
operate in either
direction.
Parking brake is engaged. Disengage parking brake.
Hydraulic oil level low. Check for low oil level in
reservoir, add oil.
Control rod linkage
disconnected.
Check linkage connection at
control levers and neutral
centering mechanisms,
reconnect linkage.
Low or no charge pressure. Contact your dealer.
Hydrostatic pump(s) relief
valves malfunctioning.
Contact your dealer.
Sluggish
acceleration.
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.
Hydraulic oil level too low. Check for low oil level in
reservoir, add oil.
Hydrostatic system charge
pressure low.
Contact your dealer.
Drive motor(s) or hydrostatic
pump(s) have internal
damage or leakage.
Contact your dealer.
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