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Page Title: Table 2-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
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TM5-4120-347-14
OPERATOR PREVENTIVE MAINTENANCE
CHECKS AND SERVICES
Equipment Is Not
Procedures. Check for
Items to be
Item
Ready/Available If:
and have repair or
Inspected
No.
adjusted as necessary.
Check for legibility and
Information plates
1
loose or missing hardware.
Check that cover is rolled up
Fabric Cover
2
for normal operation.
Cover is missing, or
Roll down cover and check
damaged.
for condition of snaps,
mildew, tears or worn edges.
Panels missing or
Check for cracks, dents, or
Panels
3
damaged.
missing hardware.
Screens or guard
Check for obstructions,
Screens and Guards
4
damaged or missing.
damage, loose or missing
hardware.
Louvers are damaged or
Check for obstructions,
Louvers
5
damage, proper adjustment,  missing.
loose or missing hardware.
Check louvers for freedom of
operations. Lubricate as
requ i red.
Filter is totally clogged
Check that filter is clean.
Air Filter
6
or missing.
Check for proper
Fresh Air Damper
7
adjustment.
Control wheel missing or
Freedom of operation.
inoperable.
Water is leaking in an
No water dripping anywhere
Condensate Drain
8
area that would cause
except drain.
damage or be a hazard.
Control module
Inspect for damage, secure
Control Module
9
damaged or operating
mounting and proper
improperly.
operation in accordance
After 15 minutes of operation Bubbles, milky flow or
Refrigerant Sight Glass
10
in maximum cooling, check  yellow color is observed.
for bubbles or milky flow
indicating low refrigerant
charge. Check for yellow
color which indicates
presence of moisture.
2-5

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