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
Test Step 9. Test for Open Quick
Operate - Continued
Coupler Wiring Harness.
1. Disconnect connector LE-C6
(WP 0012, Figure 216) from quick
coupler wiring harness (WP 0012,
Figure 215).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace quick coupler control manifold
between connector LE-C6
(WP 0372).
(WP 0012, Figure 216) terminal 1
Proceed to Test Step 15.
and terminal 2.
Resistance Greater Than 5.0 Ohms
Proceed to Test Step 10.
Test Step 10. Test for Open Lower
Cab Wiring Harness.
1. Disconnect connector LE-C2
(WP 0012, Figure 152) from
connector C-C9 (WP 0012,
Figure 153).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace front frame wiring harness
between connector C-C9
(WP 0301).
(WP 0012, Figure 153) terminal 10
Proceed to Test Step 15.
and terminal 12.
Resistance Greater Than 5.0 Ohms
Replace lower cab wiring harness
(WP 0291).
Proceed to Test Step 15.
Test Step 11. Test for Faulty Coupler
Switch.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove instrument panel
(WP 0260).
3. Disconnect connector C-C43
(WP 0012, Figure 212) from
coupler switch (WP 0012,
Figure 213).
4. Push and hold coupler switch in
unlock 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 6 and
Replace coupler switch (WP 0264).
terminal 5.
Proceed to Test Step 15.
0152-6