TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blower Motor Does NOT
60. Using digital multimeter (WP
1. If 24 Volts is found, proceed to
Function in One or More
0296), measure for voltage
step 64.
Speeds - Continued
between pin 1 on instrument
2. If voltage is NOT found, proceed
panel harness connector E-C14
to step 61.
(WP 0018, Figure 166) and pin 2
on instrument panel harness con-
nector E-C14 (WP 0018 Figure
166).
61. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
62. Disconnect instrument panel har-
ness blower motor speed switch
connector E-C2 (WP 0018, Figure
171) from blower motor speed
switch.
63. Using digital multimeter (WP
1. If continuity is found, replace
0296), test for continuity between
blower motor switch (WP 0262).
pin 5 on instrument panel harness
Ensure all harness connectors
blower motor speed switch con-
are reconnected. Verify correct
nector E-C2 (WP 0018, Figure
operation of machine (TM 5-2410-
171) and pin 1 on instrument
241-10).
panel harness connector E-C14
2. If continuity is NOT found, replace
(WP 0018, Figure 166).
instrument panel harness (WP
0260). Ensure all harness con-
nectors are reconnected. Verify
correct operation of machine (TM
5-2410-241-10).
64. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
65. Remove blower motor (WP 0227).
66. Disconnect blower motor harness
resistor connector EE-C3 (WP
0018, Figure 174) from blower
motor resistor.
0022-129