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 468 of 828

TM 9–2350–311–20–2

8–44

8–9

NBC POWER LEAD ASSEMBLY — CONTINUED

b.

Disassembly/Assembly

See repair procedures for harness, plugs, and terminals (para 8–1).

c.

Testing

Using multimeter, test NBC power lead assembly (9) for continuity through all terminals and connectors.

d.

Installation

1

Carefully route wires of NBC power lead assembly (9) through mounting hardware of their respective hoses.

2

Connect connector (3), wire 135,

to M2A2 air purifier (4) and connector (1) to NBC control box assembly

(2).

3

Connect connector (8), wire 136D,

to section chief’s M3 electrical air heater.

4

Connect connector (7), wire 136C, to assistant gunner’s M3 electrical air heater.

5

Connect connector (6), wire 136B, to cannoneer no. 1’s M3 electrical air heater.

6

Connect connector (5) , wire 136A, to gunner’s M3 electrical air heater.