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
6. Using digital multimeter
Resistance 5.0 Ohms or Less
Operate - Continued
(WP 0174), measure resistance
Proceed to Test Step 12.
between coupler switch (WP 0012,
Resistance Greater Than 5.0 Ohms
Figure 213) terminal 3 and
Replace coupler switch (WP 0264).
terminal 2.
Proceed to Test Step 15.
Test Step 12. Test for Open Wiring
Harness.
1. Connect jumper wire between
terminal 3 and terminal 6 of
connector C-C43 (WP 0012,
Figure 212).
2. Remove right lower cab access
panels (WP 0347).
3. Disconnect connector S-1
(WP 0012, Figure 216) from quick
coupler solenoid.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace quick coupler control manifold
between connector S-1 (WP 0012,
(WP 0372).
Figure 216) terminal 1 and
Proceed to Test Step 15.
terminal 2.
Resistance Greater Than 5.0 Ohms
Proceed to Test Step 13.
Test Step 13. Test for Open Quick
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 3
Proceed to Test Step 15.
and terminal 4.
Resistance Greater Than 5.0 Ohms
Proceed to Test Step 14.
Test Step 14. 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. Disconnect connector LE-C1
(WP 0012, Figure 87) from
connector C-C10 (WP 0012,
Figure 86).
0152-7
