TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
A/C Compressor will Not
5. Turn battery disconnect switch
Engage - Continued
and ignition switch to ON position
(TM 5-2410-241-10).
6. Turn blower switch to ON position
(TM 5-2410-241-10).
7. Activate A/C to MAX COOL (TM
5-2410-241-10).
8. Using digital multimeter (WP
1. If 24 Volts is found, replace A/C
0296), measure for voltage
compressor (WP 0097). Ensure
between pin 1 and pin 2 on A/C
all harness connectors are recon-
compressor harness connector
nected. Verify correct operation of
CH-C3 (WP 0018, Figure 161).
machine (TM 5-2410-241-10).
2. If voltage is NOT found, proceed
to step 9.
9. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
10. Disconnect A/C compressor har-
ness connector CH-C2 (WP 0018,
Figure 162) from A/C compressor
pressure switch.
11. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
12. Using digital multimeter (WP
1. If 24 Volts is found, proceed to
0296), measure for voltage
step 13.
between pin 1 on A/C compressor
2. If voltage is NOT found, proceed
harness connector CH-C2 (WP
to step 16.
0018, Figure 162) and ground.
13. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
14. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 15.
pin 2 on A/C compressor harness
2. If continuity is NOT found, replace
connector to compressor pres-
A/C compressor harness (WP
sure switch CH-C2 (WP 0018,
0097). Ensure all harness con-
Figure 162) and pin 1 on A/C
nectors are reconnected. Verify
compressor harness connector to
correct operation of machine (TM
compressor clutch CH-C3 (WP
5-2410-241-10).
0018, Figure 161).
0022-114