TM 11-5820-890-20-1
5.3. COMPONENT REPAIR. Continued
b. VEHICULAR AMPLIFIER-ADAPTER (VAA) (AM-7239 SERIES):
MAINTENANCE REQUIREMENT:
(1)
Replace DS1 lamp/lens (7, 8)
CAUTION
The AM-7239B/C/E have a 13 V dc
DS1 lamp.
The AM-7239, AM-7239A and LS-671
DS1 s are rated for 28 V dc.
ACTIONS:
(1)
Turn lens (8) CCW to remove
(2)
Pull lens from holder
(3)
Replace lamp/lens (7, 8)
(4)
Insert lens and turn CW to tighten
(2)
Replace inject/eject lever (15)
(3) Replace RT shelf
(AM-7239 and AM-7239B/C/E only)
(4) Replace thumbscrew
(5) Replace connector cover
(1)
Remove nut (18) and washers (17, 16)
(2)
Remove lever (15) and washer (16)
(3)
Install good lever (15) and washer (16)
(4)
Install washers (16, 17)
(5)
Apply lubricating oil to threads
(6)
Install nut (18) and tighten
(1)
Remove inject/eject lever (bottom shelf only)
(2) Remove retaining hardware
(3) Remove damaged shelf
(4) Install good shelf
(5)
Replace hardware and tighten
(6)
Install inject/eject lever (bottom shelf only)
(1)
Remove pin spring, if present and retaining ring
(2)
Turn thumbscrew CCW and remove
(3)
Remove washer, retaining ring, and rim clamp from thumbscrew
(4)
install retaining ring, rim clamp, and washer on good thumbscrew
(5)
Turn thumbscrew CW to install
(6)
Install retaining ring and pin spring, if present
(1) Remove retaining hardware
(2) Remove cover
(6) Replace seal screw
(3) Install good cover
(4)
Install retaining hardware and tighten
(1)
Remove defective seal screw
(2)
Install good seal screw
5-15
