TB-9-2510-251-13
TECHNICAL BULLETIN
OPERATOR AND FIELD MAINTENANCE; INSTALLATION MANUAL (INCLUDING REPAIR PARTS LIST); FOR ADD-ON-ARMOR (AoA) AIR CONDITIONING
AUGUST 2007
TB-9-2510-251-13 - Page 287 of 624
TB 9-2510-251-13
Table 4-1.
Unit Preventive Maintenance Checks and Services (PMCS) for Air Conditioning Kit
Item
No.
Interval
Location
Item To
Check/
Service
Procedure
Not Fully Mission
Capable If:
AIR
CONDITIONER
UNIT
1
Monthly
Compressor:
Check for excessive noise
Excessive noise
present.
Check clutch pulley for excessive
Clutch pulley worn or
wear and serviceability.
fails to turn compressor
shaft.
Run air conditioning system for
Air from ducts is less
5 minutes.
than 20° below ambient
temperature.
Check belts for tension.
Belts worn or loose.
More than 120 lbs
tension.
2
Monthly
Condenser:
Clean debris from coils.
Check inlet/outlet for obstructions
50% or greater
or damage.
obstruction.
Inlet/outlet damaged.
3
Compressor:
Inspect shaft seal for leakage.
Seal leaking or
damaged.
Inspect and tighten mounting
Brackets or mounting
brackets and bolts.
bolts damaged or
missing.
Check clutch to crankshaft drive
Not aligned.
pulley alignment.
4
Semi-
Inspect all fittings/clamps/hoses
Damaged or missing.
Annual
for damage or wear.
5
Semi-
Check fan clutch for proper
Does not engage when
Annual
operation.
unit is turned on.
6
Semi-
Inspect all wiring and connectors
Excessive damage or
Annual
for excessive damage or failure
failure to connect.
to connect.
Semi-
Annual
4-11/(4-12 Blank)
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