TM 10-5410-228-24
2.13.26 Temperature Control Unit and Support Enclosure Replacement Continued.
a. Disassembly (Refer to Figure 2-47)
(1)
Remove two screws (9), two lockwashers (10) and one flat washer (11) securing positive
regulator (12) and power transistor socket (13) to support enclosure assembly (8). Discard two
lockwashers (10).
NOTE
Note position of positive regulator pins in power transistor socket before removing positive
regulator.
(2)
Bend positive regulator (12) up and remove from support enclosure assembly (8) with power
transistor socket (13).
NOTE
Note position of capacitors before removing.
(3)
Tag and remove wires and capacitors (14 and 15) connected to power transistor socket (13).
(4)
Remove positive regulator (12) from power transistor socket (13). Discard positive regulator.
b. Assembly (Refer to Figure 2-47)
NOTE
Note position of capacitors before installing.
(1)
Install capacitors (15 and 14) and wires on power transistor socket (9). Remove tags from wires.
(2)
Cut off pin 2 of new positive regulator (12).
NOTE
Note position of positive regulator pins before installing positive regulator in power
transistor socket.
(3)
Insert pins 1 and 3 of positive regulator (12) into power transistor socket (13).
Wear gloves when working with adhesives and sealers. Use in well ventilated area. Avoid
prolonged breathing of vapors or repeated contact with the skin.
(4)
Apply heat sink compound (Item 29, Appx C) to support enclosure assembly (8) where positive
regulator (12) will mount.
(5)
Insert positive regulator (12) through hole and position power transistor socket (13) on support
enclosure assembly (8).
(6)
Bend positive regulator (12) down as required and position positive regulator (12) on support
enclosure assembly (8).
(7)
Secure power transistor socket (13) to support enclosure assembly (8) and positive regulator (12)
with one flat washer (11), two new lockwashers (10) (Item 15, Appx E) and two screws (9).
