TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blower Motor Does NOT
28. Using digital multimeter (WP
1.
If continuity is found, proceed to
Function in One or More
0296), test for continuity between
step 29.
Speeds - Continued
terminal 1 on blower motor har-
2.
If continuity is NOT found, replace
ness resistor connector EE-C3
blower motor harness (WP 0219).
(WP 0018, Figure 174) and pin 5
Ensure all harness connectors
on blower motor harness connec-
are reconnected. Verify correct
tor EE-C8 (WP 0018, Figure 167).
operation of machine (TM 5-2410-
241-10).
29. Disconnect blower motor harness
blower motor connector EE-C4
(WP 0018, Figure 175) from
blower motor.
30. Using digital multimeter (WP
1.
If continuity is found, proceed to
0296), test for continuity between
step 31.
terminal 4 on blower motor har-
2.
If continuity is NOT found, replace
ness resistor connector EE-C3
blower motor harness (WP 0219).
(WP 0018, Figure 174) and termi-
Ensure all harness connectors
nal 1 on blower motor harness
are reconnected. Verify correct
blower motor connector EE-C4
operation of machine (TM 5-2410-
(WP 0018, Figure 175).
241-10).
31. Using digital multimeter (WP
1. If resistance of 2.8 - 3.0 Ohms is
0296), measure resistance
found, replace blower motor.
between terminal 1 and terminal 4
Ensure all harness connectors
on blower motor resistor (WP
are reconnected. Verify correct
0018, Figure 176).
operation of machine (TM 5-2410-
241-10).
2. If resistance of 2.8 - 3.0 Ohms is
NOT found, replace blower motor
resistor (WP 0219). Ensure all
harness connectors are recon-
nected. Verify correct operation of
machine (TM 5-2410-241-10).
32. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
33. Disconnect instrument panel har-
ness connector E-C14 (WP 0018,
Figure 166) from blower motor
harness connector EE-C8 (WP
0018, Figure 167).
34. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
35. Turn blower motor switch to LOW
(SPEED 1) (TM 5-2410-241-10).
0022-125