TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9-2350-311-10 3-5 HULL MAINTENANCE PROCEDURES — CONTINUED 3-5.3 Servicing Batteries Lead-acid battery gases can explode. Do not smoke or allow sparks or open flames near batteries. Wear eye protection when checking batteries. Failure to follow this procedure could cause death or serious injury. If a battery is gassing, it can explode and cause injury to personnel. When working on batteries, remove all jewelry, dog tags, and metal items to avoid electrical shock and burns. a. Loose Connections 1 Lugs (1) should be ail the way down on the battery posts and tight (TM 9-6140-200-14). 2 Hold-down brackets (2) should be tight, but not so tight as to damage battery case. 3 If cap screw (3) threads are corroded, notify unit maintenance for replacement to ensure a tight hold. 4 Cables (4) and lugs (1) should be tight, 3-19