TM 5-1940-322-24
0057 00
TOWING, STEAMING, AND NAVIGATION LIGHT ASSEMBLY AND BULB MAINTENANCE (Contd)
NOTE
Tag all wires during removal to assist with installation.
REMOVAL
1. Disconnect upper mast harness (1) from receptacle (2).
2. Turn lens (18) counterclockwise until lens mark (16) aligns with removal mark (9) on housing (6).
3. Remove lens (18) and O-ring (15) from housing (6). Discard O-ring (15).
4. Remove bulb (14) from lamp socket (8) by pushing in, turning one-quarter turn counterclockwise and
pulling out.
5. Loosen two terminal screws (13) from terminals (7).
6. Disconnect two wires (10) and (11) from terminals (7) and (12).
7. Remove two screws (20) from housing (6).
8. Remove two screws (19), housing (6), bracket (5) and spacer (4) from mast (3) allowing wires (10)
and (11) to feed through holes (21) and (22).
9. Remove housing (6) and rubber seal (12) from mast (3) allowing wires (14) to feed through hole (10).
CLEANING AND INSPECTION
1. For general cleaning and inspection instructions, refer to WP 0013 00.
2. Inspect O-ring (15) for damage. Replace O-ring (15) if damaged.
3. Inspect bulb (14) for damage. Replace bulb (14) if damaged.
4. Inspect bulb (14) for grease or dirt. Clean with dry cloth if grease or dirt is present.
INSTALLATION
1. Feed wires (10) and (11) through holes (22) and (23) and through housing (6).
2. Install spacer (4), bracket (5), and housing (6) on mast (3) with screws (19) and (20).
3. Connect wires (10) and (11) to terminals (7) and (12). Tighten screws (13).
NOTE
Clean bulb with dry cloth after installation.
4. Position bulb (14) in lamp socket (8), push down, turn one-quarter turn clockwise to secure.
5. Position new O-ring (15) on lens (18).
6. Install lens (18) on housing (6) aligning lens (16) with removal mark (9).
7. Turn lens (18) clockwise until removal mark (9) aligns with stop position (16).
8. Connect upper mast harness (1) to receptacle (2).
9. Test lights (TM 5-1940-322-10).
10. Raise mast (TM 5-1940-322-10).
0057 00-2
