TM 9-4120-408-14
Table 2-2. Operator Preventive Maintenance Checks and Services
for Air Conditioner: Split Pack, 30,000 BTUH, 28VDC (Continued)
Location
Item
Item To Be
Not Fully
No
Interval
Check/Service
Procedure
Mission Capable If:
Evaporator
Assembly (Cont)
18
BEFORE
Evaporator Side
Inspect evaporator side
Evaporator side panel
Panel
panel for damage, cracks,
has cracks or holes.
holes, missing or damaged
Missing or damaged
handle, missing or damaged
handle, EMI gasket,
mounting hardware, and
or mounting hardware.
missing or damaged EMI
gasket.
19
BEFORE
Wiring Harness
Inspect for damaged or
Damaged or missing
Connector
missing wiring harness
wiring harness
connector.
connector.
20
BEFORE
Evaporator Feet
Inspect for damaged or
Damaged or missing
evaporator feet.
21
BEFORE
Condensate Drain
Inspect condensate drain
Damaged condensate
for damage.
drain.
22
BEFORE
Refrigerant Line
Inspect for damaged or
Damaged or missing
Connectors
missing refrigerant line
refrigerant line
connectors.
connectors.
Control Module
Assembly
23
DURING
Light Emitting
Check for illuminated
Any one or more of
warning light.
the warning lights
are lit.
Assembly
24
DURING
Check for loose panels.
Panels cannot be
Protective
tightened to prevent
Grilles, EMI/RFI
EMI problems.
Ventilation
Panels, Access
Panels, and Side
Panel
Evaporator
Assembly
25
DURING
Evaporator
Check that cool air is
Room temperature or
Assembly
emitted from back of
warm air is emitted
from the evaporator
operating in High Cool or
assembly.
Low Cool modes.
26
DURING
Evaporator
Check for loose panels.
Panels cannot be
EMI/RFI
Check for hammering sound
tightened to prevent
Ventilation
EMI problems.
Panels and Side
High Mobility Multi-Wheeled
Hammering sound heard
Panel
Vehicle (HMMWV).
2-10