TM9-4120-370-14
TO35E9-229-1
Table 2-1. Operator Preventive Maintenance Checks and Services - (cont)
Location
Item
Interval
Item to Check
Procedure
Not Fully Mission
No
Service
Capable If:
11
During
Refrigerant
After 15 minutes of operation in maximum cooling
Bubbles, milky
Sight Glass
check for bubbles or milky flow indicating low refriger-
flow, or yellow col-
ant charge. Check for yellow color which indicates
or is observed.
presence of moisture.
12
Weekly
Conditioned Air
check louvers for freedom of operation. Lubricate as
Grilles
required
2-1o
