TM9-4120-400-14
COMPRESSOR. - continued]
5-35.
8. (Single phase unit.) Remove three nuts (8), lock washers (9), flat washers (10), spacers (11), plate (12), and
screws (13).
9. Check compressor to see if a motor burnout is indicated.
a. Tip compressor toward discharge port and drain a small quantity of oil into a clear glass container.
b. If oil is clean and clear, and does not have a burnt acid smell, the compressor did not fail because of motor
burnout. Install new compressor.
c. If oil is black, contains sludge, and has a burnt acid odor, the compressor failed because of motor burnout.
Before installing new compressor, flush refrigerant system. (See para 5-13.)
INSTALLATION
The compressor is supplied with a complete charge of oil. Take care that oil is not lost
when handling and installing compressor.
1.
(Single phase unit.) Install three screws (13), plate (12), three spacers (n), flat washers (10), Iockwashers (9),
and nuts (8).
2.
If any refrigeration piping was disconnected and removed with the compressor, transfer the piping to the
replacement compressor.
Place four shims (5) into unit on mounting channels.
3.
4.
Carefully set compressor (7) down onto shims (5).
Install four flat washers (4) and screws (6).
5.
Lift and support air conditioner to gain access to underside of housing.
6.
7.
Install four shims (5), flat washers (4) and self-locking nuts (3).
8.
Swing four access panels (2) into place and tighten screws (1).
9.
Braze tube connections. (See para 5-12.)
10. Connect P10 connector.
11. Replace dehydrator. (See para 5-20.)
NOTE
FOLLOW-ON MAINTENANCE:
Install top rear panel (para 4-11).
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