TM9-4120-400-14
5-35.
C O M P R E S S O R . - contlnued
1. Crankcase heater, (3 phase only).
Disconnect heater leads from pins F and G of J10(1). Pull leads through grommet (2). (See para 4-20.)
a.
Pull heater (3) from mounting clip.
b.
Place new heater (3) in mounting clip.
c.
Run heater wires through grommet (2).
d.
Connect heater leads to J10 pins F and G. (See para 4-20.)
e.
f.
Secure heater wires with tie down straps (4).
2. Cutout switch (S8) (Keco single phase units only).
a. Remove screw (6), self-locking nut (7), flat washer (8), and switch (5).
b. Tag and disconnect terminals from switch (5).
c. Using tags and wiring diagram figure 4-4 connect terminal lugs to switch (5).
d. Place switch (5) in junction box and secure with screw (6), self-locking nut (7), and flat washer(8).
3. Connector (J10).
a. Remove four screws (9), lock washers (10) (Welco only), nut plate (11) (Keco only), and connector (1) with
leads.
b. Tag and unsolder leads. (See para 4-20.)
c. Using tags and wiring diagram figure 4-4 solder leads to new connector. Remove tags. (See para 4-20.)
d. Secure connector (1) with four screws (9), Iockwashers (10) (Welco only), and nut plate (11) (Keco only).
REMOVAL
1. Remove dehydrator. (See para 5-20.)
2. Purge refrigerant system. (See para 5-11.)
3. Debraze compressor tubes.(See para 5-12.)
4. Lift and support air conditioner to gain access to underside of housing.
5. Loosen four access panel screws (1) in bottom of unit and swing access panels (2) out of the way.
6. Remove four self locking nuts (3), eight flat washers (4), eight shims (5), and four screws (6).
If compressor is being removed due to burnout, use care when lifting to avoid touching
compressor sludge. Acid in sludge can cause burns.
7. Carefully lift compressor (7) from unit.
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