TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
The A/C Compressor will
15. Using digital multimeter (WP
1. If continuity is found, replace A/C
Not Engage - Continued
0296), test for continuity between
pressure switch (WP 0261) and
pin 1 on A/C compressor harness
diode (189-3758) (WP 0097).
connector CH-C3 (WP 0018, Fig-
Ensure all harness connectors
ure 161) and ground.
are reconnected. Verify correct
operation of machine (TM 5-2410-
241-10).
2. If continuity is NOT found, pro-
ceed to step 16.
16. Disconnect A/C compressor har-
ness connector CH-C1 (WP 0018,
Figure 164) from engine harness
connector V-C13 (WP 0018, Fig-
ure 165).
17. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 18.
pin 1 on
2. If continuity is NOT found, replace
A/C compressor harness pres-
A/C compressor harness (WP
sure switch connector CH-C2
0097). Ensure all harness con-
(WP 0018, Figure 162) and pin 1
nectors are reconnected. Verify
on A/C compressor harness con-
correct operation of machine (TM
nector CH-C1 (WP 0018, Figure
5-2410-241-10).
164).
18. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 19.
pin 2 on
2. If continuity is NOT found, replace
A/C compressor harness clutch
A/C compressor harness (WP
connector CH-C3 (WP 0018, Fig-
0097). Ensure all harness con-
ure 161) and pin 2 on A/C com-
nectors are reconnected. Verify
pressor harness connector CH-
correct operation of machine (TM
C1 (WP 0018, Figure 164).
5-2410-241-10).
19. Disconnect engine harness con-
nector V-C1 (WP 0018, Figure 12)
from platform harness connector
MA-C22 (WP 0018, Figure 11).
20. Using digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 21.
pin 7 on engine harness connec-
2. If continuity is NOT found, replace
tor V-C1 (WP 0018, Figure 12)
main engine harness (WP 0055).
and pin 1 on engine harness con-
Ensure all harness connectors
nector V-C13 (WP 0018, Figure
are reconnected. Verify correct
165).
operation of machine (TM 5-2410-
241-10).
0022-115