TM 5-2420-231-23-1
0069
Table 1. Loader and Backhoe Quick-Couplers Do Not Operate.
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MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Loader and Backhoe Quick-
Couplers Do Not Operate
Always inspect the wiring harness connectors that are involved in the
circuit. Poor connections can often be the cause of a problem in an
electrical circuit. Verify that all connections in the circuit are clean and
secure, and that all connections are in good condition. If a problem with a
connection is found, correct the problem and verify that this malfunction is
active before performing this procedure.
Perform an open or short circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Perform this test only if the condition is active.
Test Step 1. Check Ride Control
Fuse.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove ride control fuse (Figure
1, Item 1) (TM 5-2420-231-10).
Figure 1. Fuse Panel.
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3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less - Install
sure resistance between fuse ter-
ride control fuse (TM 5-2420-231-10).
minals. Resistance should be 5.0
Proceed to step 4.
ohms or less.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 3.
4. Remove instrument panel front
cover (WP 0174).
