Steering System Problems (Model 08745 Only) - Toro Sand Pro 3040 Service Manual

Steering System Problems (Model 08745 Only)

Problem
Steering is sluggish, operates poorly or
is inoperative.
Turning steering wheel turns wheels in
the wrong direction.
Charge pump is noisy from cavitation
(steering, traction charge, and lift circuit
performance is affected).
Troubleshooting: Steering System Problems (Model
08745 Only)
Possible Cause
Steering components (e.g. ball joint,
steering cylinder) are worn or binding.
The charge pressure is low (traction
charge and lift circuit performance is
also affected).
The steering control relief valve in the
steering control valve is faulty.
A steering cylinder shock relief valve in
the steering control valve is faulty.
Steering control valve is worn or
damaged.
Hydraulic hoses to the steering
cylinders are connected incorrectly.
The hydraulic fluid level in the hydraulic
tank is low (other hydraulic circuit
performance is affected as well).
The suction filter or suction line is
damaged, loose, or clogged.
Page 3–8
Corrective Action
Inspect steering components and repair
or replace if necessary.
Verify charge pressure; refer to Testing
the Traction Circuit – Charge Pressure
in the Hydraulic System chapter of this
manual.
Verify charge pump performance; refer
to Testing the Steering and Lift Circuit
– Charge Pump Flow and Circuit Relief
Valve in the Hydraulic System chapter
of this manual.
Verify the steering control relief valve
operation; refer to Testing the Steering
and Lift Circuit – Steering Cylinder
and Steering Control Relief Valve in
the Hydraulic System chapter of this
manual.
Repair or replace the steering control
valve
Repair or replace the steering control
valve.
Correct hydraulic hose connections.
Adjust the hydraulic fluid level.
Secure, clean or replace the suction
filter or suction line.
Sand Pro ® 3040 and 5040
20251SL Rev A