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CHAPTER 3
OPERATOR AND ORGANIZATIONAL MAINTENANCE
INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS, AND
3-1. Special Tools and Equipment
3-2. Maintenance
EQUIPMENT
Repair Parts
No special tools and equipment are required for the
Organizational maintenance repair parts are listed
air conditioner.
and illustrated in TM 5-4120-335-24P.
Section II.
PREVENTIVE MAINTENANCE CHECKS AND
3-3. General
operation immediately
SERVICES
if a deficiency is noted
Necessary preventive
maintenance checks and
during
operation
which
would damage the
services to be performed at the organizational level
equipment
if operation
were
continued. All
are listed and described in table 3-1. Item numbers
deficiencies
will be recorded,
together
with
indicate sequence of minimum
inspection
corrective
action taken on DA Form 2404
requirements. Defects discovered during operation
( E q u i p m e n t I n s p e c t i o n a n d M a i n t e n a n ce
of the unit shall be noted for future correction, and
Worksheet) at the earliest possible opportunity.
to be made as soon as operation has ceased. Stop
Table 3-1. Preventive Maintenance Checks and Services
1
2
3
4
5
6
Interval
P
x
x
x
x
x
x
D
x
A
w
M
Q
x
x
x
x
x
x
x
x
B Before Operation
A After Operation
M Monthly
D Daring Operation
w Weekly
Q Quarterly
Item to be Inspected
Condenser
discharge grille.
Louver assemblies
Interconnecting
cable connectors.
Refrigerant
sight
glass.
Air
conditioner
drain.
Control panel
Procedure
Inspect for loose mounting and obstruction
Remove any obstruction; tighten loose screws.
Replace a damaged or defective grille.
Inspect for loose mountings and obstruction
Remove obstruction; tighten loose hardware
Replace a damaged or defective louver.
See that cable connectors make firm, secure
contact. Tighten or adjust as necessary.
Replace defective connectors.
After running 15 minutes in maximum cooling
check for bubbles or milky flow indicating
low refrigerant charge; check for yell
color which indicates presence of moisture
Inspect drain
for obstruction ; remove
obstruction as necessary.
Check for damage, secure mounting, a
proper operation.
Tighten loose hardware.
Check for damage to controls, junction box,
control module; check all wiring for worn
frayed condition.
Replace as necessary.
Reference
para 3-9
para 3-9
para 3-8
para 3-8.
para 3-33.
para 3-36.
para 3-12.
para 3-12.
3-1
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