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ARMY TM 9-4210-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
Table 4-1. Unit Preventive Maintenance Checks and Services - Continued
Item
Inter-
Items to
Not Fully Mission
No.
Val
Check/
Procedure
Capable If:
Service
19
Quarterly
Pulleys
a.
Access pulleys; evaporator fan motor
(50/60 Hz) para 4-72 and 4-73, condenser
fan motor (50/60 Hz) para 4-78 and 4-79.
b.
Check pulleys for dents and burrs. Replace
if damaged. Check that 60 Hz pulleys are
painted red and 50 Hz pulleys are painted
green.
c.
Adjust pulleys.
d.
Replace pulleys if damaged.
Pulleys are
damaged.
20
Quarterly
Condenser
a.
Access motor (para 4-76).
Motor
b.
Check motor for rotational freedom by
There is stiffness
spinning shaft. If there is stiffness or
or binding. There
binding, replace motor. Check motor
is excessive shaft
bearings for shaft end play. If there is
end play.
excessive end play, replace motor.
c.
Lubricate motor (para 4-2).
d.
To repair motor contact Direct Support
Maintenance.
e.
Replace motor if damaged (para 4-76).
Motor is
damaged.
21
Quarterly
Condenser
a.
Access fan (para 4-77).
Fan
b.
Check fan for cracked or broken blades.
Blades are
Replace if damaged.
cracked or
broken.
c.
Repair fan (para 4-77).
d.
Replace fan if damaged (para 4-77).
Fan is damaged.
22
Quarterly
Electric
a.
Access heater (para 4-80).
Heater
b.
Check heater elements for deformation,
Heater elements
damaged terminals, threads, cracked or
are deformed,
broken terminals. Replace if damaged.
terminals
damaged.
c.
Replace heater if damaged (para 4-80).
Heater is
damaged.
4-19
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