TM 5-2410-241-23-1
0022
Table 1. Cab Troubleshooting Procedures - Continued.
0022
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
There is Little or No COLD
1. Inspect A/C compressor drive belt
1. If drive belt cracked or damaged,
Airflow when Air Condi-
for cracks, damage, and correct
replace A/C compressor drive belt
tioning is On
tension (WP 0096).
(WP 0096). Verify correct opera-
tion of machine (TM 5-2410-241-
10).
2. If drive belt OK, proceed to step 2.
2. Connect refrigerant reclaimer
(WP 0263). Monitor and record
low pressure and high pressure
gauge readings. Refer to A/C Per-
formance - Test in (WP 0027) for
normal operating pressures.
N OT E
Refer to steps 3 through 10 for system pressure condition.
3. Low Pressure Gauge Reading
Evacuate and recharge A/C system.
and High Pressure Gauge
Refer to A/C System Service (WP
Reading is Above Normal
0263).
Check condenser for block-
age. If no blockage is found,
A/C system is over charged.
4. Low Pressure Gauge Reading
1. If low and high pressure gauge
is Above Normal, and High
readings are the same, perform
Pressure Gauge Reading is
malfunction A/C compressor Will
Below Normal
Not Engage in this work package.
2. If low and high pressure gauge
readings are NOT the same,
replace A/C compressor (WP
0097). Verify correct operation of
machine (TM 5-2410-241-10).
5. Low Pressure Gauge Reading
Replace receiver/dryer orifice tube
is Below Normal, and High
(WP 0240). Verify correct operation of
Pressure Gauge Reading is
machine (TM 5-2410-241-10).
Above Normal
6. Low and High Pressure Read-
1.
If leaks found, replace leaking
ings are Both Below Normal
components (WP 0263). Verify
Inspect A/C system for leaks.
correct operation of machine (TM
Refer to Refrigerant Leakage
5-2410-241-10).
- Test (WP 0036).
2.
If NO leaks are found, evacuate
and recharge A/C system. Refer
to A/C system service (WP 0263).
Verify correct operation of
machine (TM 5-2410-241-10).