TM 55-1905-223-24-14
REPAIR
a. Lamp.
(1) Grasp glow lamp (3) with fingers and remove by pushing in and turning
counterclockwise.
(2) Insert replacement glow lamp (3) into lampholder, push in and turn
clockwise to secure.
b. Fuse.
(1) Remove fuse cartridge from fuseholder cap (2) and discard.
(2) Insert replacement fuse cartridge into fuseholder cap (2).
ASSEMBLY
a. Lamp.
(1) Replace lampholder lens (3) by threading onto lampholder clockwise.
(2) On pilothouse IC/ELEX panel, set circuit breaker No. 1 (MK 27 GYRO PWR CONV UNIT) to ON. Remove
"Out of Service, Do Not Operate" tag. POWER lamp (3, FIGURE 2-16) should light red.
(3) On pilothouse dc panel, set circuit breaker No. 1F (GYRO PWR TRANSF UNIT) to ON. Remove "Out of
Service - Do Not Operate" tag.
(4) Verify operation of lamp.
(5) Start compass (TM 55-1905-223-10).
b. Fuse.
(1) Insert fuseholder cap (2) and fuse cartridge into fuseholder, push in and turn clockwise to secure.
(2) On pilothouse IC/ELEX panel, set circuit breaker No. 1 (MK 27 GYRO PWR CONV UNIT) to ON. POWER
lamp (3, FIGURE 2-16) should light red.
(3) On pilothouse dc panel, set circuit breaker No. 1F to ON. Remove "Out of Service, Do Not Operate" tag.
(4) Start compass (TM 55-1905-223-10).
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