TM 5-2420-231-23-1
0069
Table 1. Loader and Backhoe Quick-Couplers Do Not Operate - Continued.
069
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. Disconnect side options wiring har-
Loader and Backhoe Quick-
ness connector (WP 0007, Figure
Couplers Do Not Operate -
44) from side console wiring har-
Continued
ness connector (WP 0007, Figure
45) (WP 0255).
11. Using a digital multimeter, test for
Continuity - Replace side console
continuity between side console
wiring harness (WP 0170).
wiring harness connector (WP
Connect all wiring harness connectors.
0007, Figure 24) terminal 3M and
Install instrument panel front covers
machine ground. There should be
(WP 0174).
no continuity.
Install new ride control fuse (TM 5-
2420-231-10).
Proceed to Test Step 8.
No Continuity - Proceed to step 12.
12. Using a digital multimeter, test for
Continuity - Replace cab wiring
continuity between side console
harness (WP 0181).
wiring harness connector (WP
Connect all wiring harness connectors.
0007, Figure 130) terminal A2 and
Install instrument panel front covers
machine ground. There should be
(WP 0174).
no continuity.
Install new ride control fuse (TM 5-
2420-231-10).
Proceed to Test Step 8.
No Continuity - Replace side options
wiring harness (WP 0255).
Connect cab wiring harness connector
(WP 0007, Figure 129) to side console
wiring harness (WP 0007, Figure 130)
(WP 0170).
Connect rear main chassis wiring
harness connector (WP 0007, Figure
24) to side console wiring harness (WP
0007, Figure 25) (WP 0170).
Install front instrument panel right-side
cover (WP 0176).
Install new ride control fuse (TM 5-
2420-231-10).
Proceed to Test Step 8.
Test Step 5. Test Backhoe Quick-
Coupler Load Sense Solenoid
Control Circuit for a Short to Ground.
1. Disconnect chassis options wiring
harness connector (WP 0007, Fig-
ure 213) from backhoe quick-cou-
pler load sense solenoid (WP
0007, Figure 214) (WP 0260).
0069-9
