TM 5-4220-227-14
4-39. Light Source
This task covers:
a.
Replace
b.
Repair
INITIAL SETUP:
Tools
Equipment Condition
General Mechanic's Tool Kit
Chamber shut down (para. 2-15).
(NSN 5180-00-177-7033)
Materials/Parts
Light Source
Lamp
a.
Replace. (figure 4-23)
NOTE
There are three light sources. Replacement of each light source is the same.
(1)
Unlatch two latches (1), open hood assembly door (2) and install two supports (3) and pins (4).
NOTE
Each light source has its own ON/OFF switch.
(2)
Move ON/OFF toggle switch (5) for the light to be replaced to the OFF position and turn RESET switch (6)
on GFI OFF (down).
(3)
Disconnect the electrical connector (7) from the light source (8).
(4)
Remove four bolts (9) and washers (10) and remove cover (11).
(5)
Loosen nut (14) and pull light source (8) off of light probe (12).
(6)
Loosen light probe fitting nut (13) and remove light probe (12).
(7)
Install light probe (12) and tighten light probe fitting nut (13).
(8)
Install light source (8) on light probe (12) and tighten nut (14).
(9)
Install cover (11 ) and secure with four bolts (9) and washers (10).
(10)
Connect electrical connector (7) to light source (8).
(11)
Turn RESET switch (6) on GFI to ON (up) and move ON/OFF toggle switch (5) to ON position.
(12)
Remove two pins (4), supports (3), close hood assembly door (2), and secure with two latches (1).
4-56
