Toro Groundmaster 31900, Service Manual, Page: 55 / 355

Steering System Problems
Problem Possible Cause Corrective Action
Steering components (e.g. rod ends,
steering cylinder, steering stops) are
worn or binding. Inspect steering components and repair
or replace if necessary.
Verify and adjust rod end and steering
stop lengths and adjust if necessary.
The charge pressure is low (steering
and lift circuit performance is also
affected). Verify charge pressure; refer to Testing
the Traction Circuit – Charge Pressure
in the Hydraulic System chapter of this
manual.
Verify gear pump (P2) performance;
refer to Testing the Steering and Lift
Circuit – Gear Pump (P2) Flow and
Circuit Relief Valve in the Hydraulic
System chapter of this manual.
Relief valve (R4) in the steering control
valve is faulty. Verify relief valve (R4) operation; refer
to Testing the Steering and Lift Circuit
– Steering Cylinder and Circuit Relief
Valve in the Hydraulic System chapter
of this manual.
Steering is sluggish, operates poorly or
is inoperative.
Steering control valve is worn or
damaged. Rebuild or replace the steering control
valve.
Turning steering wheel turns wheels in
the wrong direction. Hydraulic hoses to the steering
cylinders are connected incorrectly. Correct hydraulic hose connections.
The hydraulic fluid level in the hydraulic
tank is low (other hydraulic circuit
performance is affected as well). Adjust the hydraulic fluid level. Gear pump (P2) are noisy from
cavitation (steering, traction charge,
and lift circuit performance is affected).
The suction filter or suction line is
damaged, loose, or clogged. Secure, clean or replace the suction
filter or suction line.
Groundsmaster ® 3200, 3300 and 3310 Page 3–19 Troubleshooting: Steering System Problems
19240SL Rev A