TM 9-4120-357-14
Table 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Q-Quarterly
Total man-hours required: 4.7
Sequence
Item To Be Inspected
Work time
Number
Procedure
(man-hours)
5*
FRESH AIR INLET GRILLE
0.5
WARNING
Dry cleaning solvent, P-D-680, used to clean parts, is
potentially dangerous to personnel and property. Avoid
repeated and prolonged breathing of vapors and skin
contact with the liquid. Do not use near open flame or
excessive heat. Flash point of solvent is 100 to 138
F
F
(38 to 59 ).
C
C
Disconnect linkage. Remove 12 screws and washers from
screen and baffle frame, and lift out baffle frame. Clean the
wire mesh by agitating it in dry cleaning solvent (Fed Spec
P-D-680) or in detergent solution. Blow baffles clean with
compressed air, or agitate in detergent solution. Replace
the wire mesh if damaged. Install baffles and screen with
12 screws and washers. Reconnect linkage.
6*
CONDENSER INTAKE SCREEN
0.3
WARNING
Dry cleaning solvent, P-D-680, used to clean parts, is
potentially dangerous to personnel and property. Avoid
repeated and prolonged breathing of vapors and skin
contact with the liquid. Do not use near open flame or
excessive heat. Flash point of solvent is 100 to 138
F
F
(38 to 59 ).
C
C
Inspect for damage. Replace if wires are cut or broken.
Remove by unscrewing 12 screws from top and bottom
edges of frame. Clean by agitating in dry cleaning solvent
(Fed Spec P-D-680).
NOTE
Clean the condenser coil (sequence number 7) while the
condenser intake screen is removed. Install the intake
screen, and secure with 12 screws.
7
CONDENSER COIL
0.2
With the condenser intake screen removed for access, clean
the condenser coil by vacuum cleaning with a brush
attachment.
4-5
