TM 5-3805-298-23-2
0152
Table 1. Quick Coupler Will Not Operate - Continued.
0152
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Quick Coupler Will Not
2. Remove console instrument panel
Operate - Continued
for access to wiring harness
connectors
(WP 0264).
3. Disconnect connector C-C43
(WP 0012, Figure 212) from
coupler switch (WP 0012,
Figure 213).
4. Push and hold coupler switch in
lock position (TM 5-3805-298-10).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to step 6.
between coupler switch (WP 0012,
Resistance Greater Than 5.0 Ohms
Figure 213) terminal 4 and
Replace coupler switch (WP 0264).
terminal 5.
Proceed to Test Step 15.
6. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to Test Step 4.
between coupler switch (WP 0012,
Resistance Greater Than 5.0 Ohms
Figure 213) terminal 1 and
Replace coupler switch (WP 0264).
terminal 2.
Proceed to Test Step 15.
Test Step 4. Test for Voltage at
Coupler Switch.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
2. Using digital multimeter
Voltage 18 to 26 V Proceed to Test
(WP 0174), test for voltage
Step 5.
between connector C-C43
Voltage Less Than 18 V Replace
(WP 0012, Figure 212) terminal 2
lower cab wiring harness (WP 0291).
and terminal 5 (ground).
Proceed to Test Step 15.
Test Step 5. Test for Open Wiring
Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Connect jumper wire between
terminal 1 and terminal 4 of
connector C-C43 (WP 0012,
Figure 212).
3. Remove right lower cab access
panels (WP 0347).
4. Disconnect connector S-2
(WP 0012, Figure 216) from quick
coupler solenoid.
0152-3
