TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blower Motor Does NOT
20. Using digital multimeter (WP
1. If 24 Volts is found, proceed to
Function in One or More
0296), measure for voltage
step 25.
Speeds - Continued
between pin 5 on instrument
2. If voltage is NOT found, proceed
panel harness connector E-C14
to step 21.
(WP 0018, Figure 166) and pin 2
on instrument panel harness con-
nector E-C14 (WP 0018, Figure
166).
21. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
22. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 23.
pin 2 on instrument panel harness
2. If continuity is NOT found, replace
connector E-C14 (WP 0018, Fig-
platform harness (WP 0209) and
ure 166) and ground
instrument panel harness (WP
0260). Ensure all harness con-
nectors are reconnected. Verify
correct operation of machine (TM
5-2410-241-10).
23. Disconnect instrument panel har-
ness blower motor speed switch
connector E-C2 (WP 0018, Figure
171) from blower motor speed
switch.
24. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 25.
pin 3 on instrument panel harness
2. If continuity is NOT found, replace
blower motor speed switch con-
instrument panel harness (WP
nector E-C2 (WP 0018, Figure
0260). Ensure all harness con-
171) and pin 5 on instrument
nectors are reconnected. Verify
panel harness connector E-C14
correct operation of machine (TM
(WP 0018, Figure 166),
5-2410-241-10).
25. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
26. Remove blower motor (WP 0227).
27. Disconnect blower motor harness
resistor connector EE-C3 (WP
0018, Figure 174) from blower
motor resistor.
0022-124