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Page Title:
Chapter 3. OPERATOR/CREW MAINTENANCE INSTRUCTIONS |
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 TM 5-4120-352-14
CHAPTER 3
OPERATOR/CREW MAINTENANCE INSTRUCTIONS
LUBRICATION
INSTRUCTIONS
Section I.
3-2.
3-1.
Fan Motors.
The compressor and compressor motor are fully
The evaporator and condenser motors are per-
lubricated by the manufacturer and require no ad-
manently lubricated by the manufacturer and re-
ditional lubrication.
quire no additional lubrication.
PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Section II.
tinued. All deficiencies and shortcoming will be
3-3.
General.
recorded, together with the corrective action taken,
To insure that the air conditioner is ready for
on DA Form 2404, at the eariliest possible
operation at all times, it must be inspected system-
opportunity.
atically so that defects may be discovered and cor-
rected before they result in serious damage or fail-
ure. The necessary preventive maintenance services
Daily Preventive Maintenance
3-4.
to be performed are listed and described in para-
Services.
graph 3-4. The item numbers indicate the sequence
This paragraph contains a tabulated listing of
of minimum inspection requirements. Defects dis-
preventive maintenance services which must be
covered during operation of the unit will be noted
performed by the operator. The item numbers are
for future correction to be made as soon as operation
listed consecutively and indicate the sequence of
of the unit has ceased. Stop operation immediately
minimum requirements. Refer to table 3-1 for the
if a deficiency is noted during operation which
daily preventive maintenance services.
would damage the equipment if operation were con-
Table 3-1. Operator/Crew Preventive Maintenance Checks and Services
A - After Operation
D - During Operation
B - Before Operation
WORK
INTERVAL AND
TIME
ITEM TO BE INSPECTED
SEQUENCE NO.
(M/H)
A
PROCEDURE
B
D
CONDENSER COVER
1
0.05
With cover rolled up for operation, check securing ties for damage.
DRAINS
2
4
7
0.10
Inspect drains for obstruction to drainage. Remove obstructions
MAINT POWER RECEPTACLE CONNECTOR
3
0.05
Check for secure power connection. Tighten if necessary
LIQUID SIGHT INDICATOR
5
0.05
Check for moisture and low refrigerant chage. Yellow indicates mositure; bubbles or milky
appearance indicates low charge.
AIR CONDITIONER OPERATION
6
0.10
Check for abnormal operation, vibration, unusual noise, failure to respond to controls.
3-1
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