TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 Change 2 3–69 Repair or replace ground wires (para 8–13). Replace wire 645 (para 8–13). 1. Ensure that hydraulic pressure in power pack main accumulator assembly is below 925 psi (6378 kPa). 2. Place red multimeter lead on wire 645 post of electromagnetic relay and black lead to ground. 3. Check for voltage. Is battery voltage present? yes no K 1. Turn MASTER and CAB POWER switches to OFF. 2. Place one multimeter lead on electromagnetic relay ground post and other lead to ground. 3. Check for continuity. Is continuity present? CONTINUED ON NEXT PAGE CONTINUED FROM STEP J yes no L – + RELAY GROUND POST Replace electromagnetic relay (para 8–13). POST OF RELAY – + WIRE 645