TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Condenser Fan(s) Do Not Oper-
4. Using digital multimeter, mea-
Voltage Less Than Specified
ate When the A/C Switch is Acti-
sure for voltage (WP 0283)
Range - Proceed to step 6.
vated Continued
between harness connector T-
Voltage Within Specified Range
C2 (WP 0018, Figure 243) ter-
- Replace condenser motor 2 (WP
minal 1 and terminal 2.
0202). Then proceed to step 5.
There should be approximately 18
to 26 volts.
5. Using digital multimeter, mea-
Voltage Less Than Specified
sure for voltage (WP 0283)
Range - Proceed to step 6.
between harness connector T-
Voltage Within Specified Range
C4 (WP 0018, Figure 245) ter-
- Replace condenser motor 1 (WP
minal 1 and terminal 2.
0202). Ensure all harness connec-
There should be approximately 18
tors are reconnected. Verify proper
to 26 volts.
operation of machine (TM 5-2410-
240-10).
6. Using digital multimeter, mea-
Voltage Less Than Specified
sure for voltage (WP 0283)
Range - Proceed to step 7.
between harness connector T-
Voltage Within Specified Range
C4 (WP 0018, Figure 245) ter-
- Proceed to Test Step 3.
minal 1 and cab ground.
There should be approximately 18
to 26 volts.
7. Using digital multimeter, mea-
Voltage Less Than Specified
sure for voltage (WP 0283)
Range - Proceed to step 8.
between harness connector T-
Voltage Within Specified Range
C2 (WP 0018, Figure 243) ter-
- Proceed to Test Step 3.
minal 1 and cab ground.
There should be approximately 18
to 26 volts.
8. Inspect affected circuit breaker Affected Circuit Breaker OK -
#25 or #27 (TM 5-2410-240-
Proceed to step 10.
10).
Affected Circuit Breaker Not OK
- Reset circuit breaker (TM 5-
2410-240-10). Proceed to step 9.
9. Using digital multimeter, mea-
Affected Voltage Less Than
sure for voltage (WP 0283)
Specified Range - Proceed to
between affected harness
step 10.
connector T-C2 (WP 0018,
Affected Voltage Within Speci-
Figure 243) terminal 1 and
fied Range - Replace affected
harness connector terminal 2
condenser motor (WP 0202).
or harness connector T-C4
Ensure all harness connectors are
(WP 0018, Figure 245) termi-
reconnected. Verify proper opera-
nal 1 and terminal 2.
tion of machine (TM 5-2410-240-
There should be approximately 18
10).
to 26 volts.
0021-72
