TM 9-4120-404-14
Table 2-1. Operator Preventive Maintenance Checks and Services.
Location
Item
Interval
Item To
Procedure
Not Fully Mission
No.
Check/Service.
Capable If:
9
Before
Metal Covers
Inspect for missing
Covers are missing.
or damaged covers
10
Before
Mist Eliminator
Check that eliminator
is in place.
11
During
Condensate Drain
Check for clogged
Drain tubes or drain
Assembly
tubes or drain
holes are clogged.
holes.
NOTE
Air conditioner must be
operating for at least 15
minutes before checking
liquid sight indicator.
12
Weekly
Liquid Sight
Examine sight indicator
Bubbles, milky, or yellow
Indicator
glass.
color is observed in
sight indicator.
13
Weekly
Fabric Cover
Roll cover down and
check condition of
snaps, tom or worn
edges, and mildew.
14
Weekly
Access
Inspect all covers
Panels
and panels for dents
or missing hardware.
15
Weekly
Conditioned
Check that louvers are
Air Louver,
not obstructed, dam-
Return Air
aged, or loose. Check
Louver, and
for missing hardware.
Clean debris from
louvers
2-8