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 TM 55-1925-273-10-2
0141 00
Table 1. Preventive Maintenance Checks and Services Chart (continued)
ITEM INTERVAL MAN-
ITEM TO BE
PROCEDURE
EQUIPMENT
NO.
HOUR
CHECKED OR
NOT READY/
SERVICED
AVAILABLE IF:
AIR
If both units fail
CONDITIONING
to operate.
CONDENSING
UNITS
10
Before
0.5
Liquid Level
Check the oil level in the sight glass.
Oil level is low.
Refrigerant
The level should be 1/8 to 1/2 full.
11
Before
0.5
Oil Level Sight
Check the oil level in the oil level sight
Oil level is low.
Glass
glass. The level should be 1/4 to 3/4 full.
12
Before
0.3
Moisture Indicator
Check the moisture indicator. It should
be BLUE. Notify unit maintenance if the
moisture indicator is PINK.
REFRIGERATION
CONDENSING
UNITS
13
Before
0.3
Liquid Level
Check the oil level in the sight glass.
Oil level is low.
Refrigerant
The level should be 1/8 to 1/2 full.
14
Before
0.3
Oil Level Sight
Check the oil level in the oil level sight
Oil level is low.
Glass
glass. The level should be 1/4 to 3/4 full.
15
Before
0.3
Moisture Indicator
Check the moisture indicator. It should
be BLUE. Notify unit maintenance if the
moisture indicator is PINK.
Discharge Pressure
Gauge
Suction Pressure
Gauge
Suction Gas
Oil Pressure Gauge
Temperature Gauge
Liquid Line
Temperature Gauge
Moisture
Indicator
Liquid Level
Gauge
Oil Level
Site Glass
0141 00-4
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