TM 5-2420-231-23-1
0071
Table 1. Front End Loader Quick-Coupler Does Not Operate Correctly - Continued.
071
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test For Voltage to Front
Front End Loader (FEL)
FEL Quick-Coupler Switch.
Quick-Coupler Does Not
Operate Correctly -
1. Ensure ignition switch is in the off
Continued
position (TM 5-2420-231-10), and
disconnect batteries (WP 0157).
2. Remove instrument panel front
covers (WP 0174).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Proceed to
sure voltage between front console
Test Step 3.
wiring harness connector (WP
Voltage Less Than 10 Volts - Replace
0007, Figure 211) terminal 2 and
front console options wiring harness
machine ground. Voltage should
(WP 0163).
be 10 to 14 volts.
Connect all wiring harness connectors.
Proceed to Test Step 6.
5. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10).
Test Step 3. Test FEL Quick-Coupler
Switch.
1. Ensure ignition switch is in the off
position (TM 5-2420-231-10), and
disconnect batteries (WP 0157).
2. Remove FEL quick-coupler switch
(Figure 1, Item 1) from instrument
panel front cover (WP 0174).
3. Press and hold FEL quick-coupler
switch in the retract position.
4. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between FEL
Proceed to step 4.
quick-coupler switch (WP 0007,
Resistance Greater Than 5.0 Ohms -
Figure 212) terminals 2 and 3.
Replace FEL quick-coupler switch (WP
Resistance should be 5.0 ohms or
0174).
less.
Proceed to Test Step 6.
5. Press and hold FEL quick-coupler
switch in the lock position.
6. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between FEL
Proceed to Test Step 4.
quick-coupler switch (WP 0007,
Resistance Greater Than 5.0 Ohms -
Figure 212) terminals 1 and 2.
Replace FEL quick-coupler switch (WP
Resistance should be 5.0 ohms or
0174).
less.
Proceed to Test Step 6.
Test Step 4. Test Loader Quick-
Coupler Solenoid Control Circuit.
1. Remove air cleaner barrier curtain
(WP 0099).
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