TM-9-2350-311-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 795 of 1275

TM 9-2350-311 -20-1

8-58 lNTERCOM/TELEPHONE WIRING HARNESS AND SLIP RING TELEPHONE FEED

WIRING HARNESS — CONTINUED

a. Removal

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WARNIN G

Ensure MASTER switch is OFF when working on hull electrical system to avoid

electrical shocks and bums.

Remove four nuts (10),Iockwasher (11), ground lead (4), four screws (12), four Iockwashers (13), and four flat

washers (14) and disconnect connector (9). Discard Iockwashers.

Remove two plastic attaching straps (15), four screws (16), and four flat washers (17) located over air cleaner

blower relay (18).

Remove nine plastic attaching straps (19), nine screws (20), and nine flat washers (21) located between

driver's instrument panel and segment board (22).

Remove screw (23), nut (24), and Iockwasher (25) at segment board. Release wire 48 (5) and reinstall screw,

nut, and Iockwasher.

Remove five screws (26) at segment board (22). Release five wires 41,42,43, L1, and L2 (1, 2,3, 6, and 7).

Remove screw (27) and flat washer (28) to release ground (8).

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