Hydraulics — Hydraulics Troubleshooting Diagnostic Flow Charts

Work Hydraulics Diagnostics (Continued)

NOTE: The table below refers to the flow chart on the previous page.

1 See “Gear/Work Hydraulic Pump Removal” on page149. Pump(s) have to be removed to access pump coupling components.

2See “Piston/Drive Hydraulic Pump Removal” on page150.

3 See “Hydraulic Piston/Drive Pump Diagnostics” on page115. Additional diagnostics specific to the pump(s) is required.

4Refer to the parts manual for main relief valve parts information.

5See “Operator Presence Diagnostics” on page113. Additional diagnostics specific to the operator presence control is required.

6See “Drive Coupling Removal” on page87. Refer to the parts manual for drive coupling parts information.

7 See “Hydraulic Cylinder Disassembly/Assembly” on page141. General cylinder service information.

8See “Steering Control Valve Removal” on page156. Refer to the parts manual for steering control valve parts information.

9See “Steering Hydraulics Diagnostics” on page109. Work and steering hydraulics are integrated at points. Additional diagnostics may be required.

10See “Work Pressure Test” on page124

See:

•“Fuse Locations” on page37.

•“Engine Oil Level Check” on page20.

•“Drive Controller Error Codes” on page172 and “Machine Controller Logic” on page169.