Gravely Promaster 400 - Steering & Controls; Power Steering Schematic; Power Steering System Troubleshooting

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7.1 POWER STEERING SCHEMATIC
Refer to Figure 51 for proper hydraulic hose routing.
7.2 POWER STEERING SYSTEM TROUBLESHOOTING
SECTION 7 - STEERING & CONTROLS
Figure 50
1. Axle Pin Weldment
2. Axle Weldment
3. RH Ball Socket
4. LH Ball Socket
5. Steering Idler
Weldment
6. Kingpin Weldment
7. Steering Arm
Weldment
1
2
3
4
5
6
3
3
4
4
7
PF1144
Problem Probable Cause Corrective Action
Rear wheels will not turn Hydraulic system low on fluid
Air in system
Pinched or restricted hydraulic hose
Service hydraulics
Bleed hydraulic system
Repair or replace
Steering wanders Hydraulic hose fitting loose
Cylinder seals leaking
Internal steering unit seals leaking
Toe-in out of adjustment
Tighten hydraulic fitting
Repair
Repair
Adjust
Steering tire tread wearing Toe-in out of adjustment Adjust