TM-9-2350-358-BD M109A6 Battlefield Damage Assessment and Repair Download
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TM 9-2350-358-BD 7-12. RELAY, MASTER - CONTINUED References: TM 9-2350-314-20-1-2 Procedural Steps: 1. Gain access to master relay and batteries WARNING • Fuel leaks or vapors may be present in engine compartment which can be ignited by electrical spark. Fix leaks and ventilate area before disconnecting master relay cables or battery. Failure to do so could result in an explosion and injury or death to personnel. • Master relay cables carry high current. Before working on master relay, disconnect negative link on batteries. Failure to do so could result in personnel injury or death by electrocution. 2. Disconnect battery ground cable from shunt. 3. Disconnect cables from master relay terminals A1 and A2. 7-14