TM 5-4220-227-14
5-20. Light Source.
This task covers: Repair
INITIAL SETUP
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Distilled Water (Item 8, Appendix E)
(NSN 5180-00-177-7033)
Cloth, Lint-free (Item 5, Appendix E)
Materials/Parts
Equipment Condition
Light Source
Chamber shut down (para. 2-15)
Detergent, Nonionic (Item 7, Appendix E)
Light source removed (para. 4-39).
Repair. (figure 5-22)
NOTE
There are three light sources. Repair of each light source is the same.
(1)
Remove pipe nut (1) and fitting nut (2) from light probe (3).
(2)
Remove gland nut (4) and ferrules (5) and (6).
(3)
Remove four screws (7) and remove cover (8).
(4)
Lift lamp ejector lever (9) away from lamp (10).
(5)
Remove lamp ejector lever (9) from lamp socket (11).
(6)
Remove lens (12) from lens and thermocouple assembly (13).
(7)
Tag and disconnect electrical leads (14) from terminal board (15).
(8)
Remove two screws (16) and remove lens and thermocouple assembly (13).
(9)
Tag and disconnect electrical leads (17) from connector (18).
(10)
Remove four nuts (19), washers (20) and screws (21) and remove connector (18).
(11)
Tag and disconnect electrical leads (22) from terminal board (15).
(12)
Remove four nuts (23), washers (24) and screws (25) and remove fan (26).
(13)
Clean all components using nonionic detergent cleaner and rinse with clean distilled water.
5-50
