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 444 of 828

TM 9–2350–311–20–2

8–20

8–3

PANORAMIC TELESCOPE TO DOME LIGHT LEAD ASSEMBLY — CONTINUED

b.

Disassembly

1

Remove three self-locking nuts (28), three flat washers (29), three plastic attaching straps (30), three flat

washers (31), and three cap screws (32) from harness assembly. Discard self-locking nuts.

2

Remove tape (33) to separate panoramic telescope to dome light lead assembly (34) from power lead as-

sembly (35) and power system wiring harness (intercom) (36).

3

Repair or replace electrical leads or connectors as necessary (para 8–1).

c.

Testing

Using multimeter, test panoramic telescope to dome light lead assembly for continuity through all plugs and

connectors.

d.

Assembly

NOTE

After assembly, check to ensure the wiring bundles will not be pinched by commander’s seat.

1

Use new tape (33) to bundle power system wiring harness (intercom) (36), cab power lead assembly (35),

and panoramic telescope to dome light lead assembly (34).

2

Install three cap screws (32), three flat washers (31), three plastic attaching straps (30), three flat washers

(29), and three new self-locking nuts (28) on harness assembly.

32

31

30

29

28

36

35

34

33