Hydrostatic System

Problem Possible Cause Remedy

No response from either hydrostatic drive or the lift/tilt systems.

Hydraulic oil viscosity is too heavy. Allow longer warm-up or replace existing oil with the proper viscosity oil.

Hydraulic oil supply is too low. Check for low oil level in reservoir. Add oil.

Drive coupling failure. Replace the coupling.

Parking brake is engaged. Disengage parking brake. Hydraulic oil supply is low. Check for low oil level in reservoir. Add oil.

Traction drive will not operate in either direction.

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 are malfunctioning. Contact your dealer.

Air in hydraulic system. 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.

Sluggish response to acceleration.

Automatic parking brake partially engaged. Contact your dealer.

Hydraulic oil supply is too low. Check for low oil level in reservoir. Add oil.

Low hydrostatic system charge pressure. Contact your dealer.

Drive motor(s) or hydrostatic pump(s) have internal damage or leakage.

Contact your dealer.