TM 5-2420-231-23-1
0065
Table 1. Loader Lift Does Not Operate Correctly - Continued.
065
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Check output of front section (WP
Efficiency of Pump Less Than 70
Loader Lift Does Not
Percent - Turn ignition switch to the off
Operate Correctly -
position (TM 5-2420-231-10).
Continued
Perform Flowmeter Disconnect
Procedure (WP 0086).
Replace hydraulic oil pump (WP 0230).
Proceed to Test Step 7.
Efficiency of Pump Is 70 Percent or
Greater - Turn ignition switch to the off
position (TM 5-2420-231-10).
Perform Flowmeter Disconnect
Procedure (WP 0086).
Replace loader control valve assembly
(WP 0261).
Proceed to Test Step 7.
Test Step 7. Verify That Symptom Is
Resolved.
Operate loader lift (TM 5-2420-231-10) Loader Lift Cylinders Operate
in various loads and observe operation. Normally - Troubleshooting complete.
Loader Lift Cylinders Operate Slowly
- Repeat troubleshooting from the
beginning.
Loader Lift Will Not Operate - Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
0065-6