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TM5-4120-387-14
(j) Coat the bearing cavity of bracket (end bell) and frame cavity
with oil (MIL-L-2104, Grade 20) or equal and insert bearings.
(k) Carefully work bracket (end bell) onto shaft end keeping the
match-marks made at time of disassembly in alinement.
(1) Using screwdriver, secure bracket (end bell) with four screws.
Before final tightening, check for freedom of rotation by turning shaft by hand.
There should be no drag or binding.
Correct as necessary and tighten screws.
Check again for binding and drag.
Follow-on procedure:
Install motor.
(See para 4-60.)
5-5. REFRIGERATION SYSTEM REPAIRS GENERAL
The refrigeration system must be totally discharged before any maintenance action
that requires opening of the pressurized system.
Leak testing and dehydrator
replacement are required after any system component has been removed and
replaced.
The system must be evacuated before it is charged. The system must be
properly charged to function properly.
DANGEROUS CHEMICAL
(R22)
is used in this equipment
DEATH
or severe injury may result if personnel fail to observe
safety precautions.
Use great care to avoid contact with
liquid refrigerant gas being discharged under pressure.
Sudden and irreversible tissue damage can result from
freezing.
Wear thermal protective gloves and a face
protector or goggles in any situation where skin-eye-contact
is possible.
Prevent contact of refrigerant gas with flame
or hot surfaces.
Heat causes refrigerant to break down and
form carbonyl chloride (phosgene), a highly poisonous and
corrosive gas.
REFRIGERANT UNDER PRESSURE
is used in the operation of this equipment
DEATH
or severe injury may result if you fail to observe safety
precautions.
Never use a heating torch on any part that
contains refrigerant -22.
Do not let liquid refrigerant
touch you, and do not inhale refrigerant gas.
5-6
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