TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 681 of 828

TM 9–2350–311–20–2

18–13

h.

Disassembly of Disk Assembly

NOTE

Old disk assemblies contain lamps in place of LEDs, because LEDs do not provide adequate illumi-

nation to level of old disk assemblies.

Remove machine screw (34), lockwasher (35), electrical cover (36), and LED (37) from disk assembly (38).

Discard lockwasher.

i.

Assembly of Disk Assembly

NOTE

Old disk assemblies contain lamps in place of LEDs and should NOT be replaced with LEDs.

1

Install LED (37) in disk assembly (38).

2

Install electrical cover (36), new lockwasher (35), and machine screw (34).

38

37

36

34

35