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TM 9-4120-389-14
d.
Connector J4 Replacement. (Refrigerant system discharge is not required.)
(1)
Removal
WARNING
Be sure that the power has been disconnected at the power source.
(a)
Remove wing nut, cover and gasket.
(b)
Remove four nuts, four lock washers and four screws from connector J4. Pull the
connector out of the box to gain access to the solder connections.
(c)
Tag and unsolder wires.
(2)
Installation
(a)
Using tags and wiring schematic, solder wires to new connector. Remove the tags.
(b)
Secure the connector with four screws, four lockwashers and four nuts.
(c)
Install gasket cover and wing nut.
e.
Heater (HR7) Replacement. (Refrigerant system discharge is not required.)
(1)
Removal.
WARNING
Severe burns can result from touching hot heater. Allow heater to cool before
touching.
(a)
Tag and disconnect two heater leads.
(b)
Remove retaining spring on heater.
(c)
Lift heater up and off compressor crankcase.
(2)
Installation.
(a)
Spread heater ends apart and place heater down and around compressor in position on
crankcase.
(b)
Secure heater on crankcase with retaining spring.
(c)
Connect two heater leads to heater.
5-69
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