TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–111 A B C D E F G H J K L M N P CONTINUED FROM STEP H yes no CONTINUED ON NEXT PAGE Repair or replace wire 43 (TM 9–2350–311–20–1). 1. Place one multimeter lead in socket N of telephone intercom wiring harness connector and other lead to ground. 2. Check for continuity. Is continuity present? yes no I Repair or replace wire labeled GND (TM 9–2350– 311–20–1). J yes no Clean and adjust electrical contact arm assembly (para 9–3). 1. Disconnect position 1 wires at contact arm assembly quick-disconnects to place one multimeter lead in position 1 and other lead to position 2 terminals for individual continuity checks. POSITION 1 POSITION 2 Wire 141 Wire 41 Wire 142 Wire 42 Wire 143 Wire 43 2. Check for continuity. Is continuity present? + CONTACT ARM ASSEMBLY + POSITION 1 POWER SYSTEM WIRING HARNESS QUICK-DISCONNECTS POSITION 2 TERMINALS – TELEPHONE/INTERCOM WIRING HARNESS CONNECTOR SOCKET N