TM9-4120-400-14
Table 2-1.
OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - continued
A - After
M - Monthly
D - During
B - Before
Item To Be Inspected
Procedures
Equipment Is Not
Interval
Item
No.
Check for and have repaired or adjusted as
Ready/Available If:
necessary.
B
D
A
M
4
Screens and Guards
Check for obstructions, damage, loose or
Screens or guard
missing hardware.
damaged or
missing.
Louvers are
Louvers
5
Check for obstructions, damage, proper
adjustment, loose or missing hardware.
damaged or
missing.
Check louvers for freedom of operations.
Lubricate as required.
Air Fitter
Filter is totally
Check that filter is clean.
6
clogged or
missing.
7
Fresh Air Damper
Check for proper adjustment.
Freedom of operation.
Control wheel
missing or
inoperable.
8
Water is leaking in
Condensate Drain
No water dripping anywhere except drain.
an area that would
cause damage or
be a hazard.
9
Inspect for damage, secure mounting, and
Control Module
Control module
proper operation in accordance with
damaged or
operating
improperly.
10
Refrigerant Sight
After 15 minutes of operation in maximum
Bubbles, milky
GIass
cooling, check for bubbles or milky flow
flow, or yellow
indicating low refrigerant charge. Check for
color is observed.
yellow color which indicates presence of
moisture.
2-6