TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 2-15 PROCEDURES FOR SEMIANNUAL/ANNUAL SERVICES — CONTINUED ITEM NO. 11 12 TABLE 2-1 UNIT PMCS FOR M109A2/M109A3/M109A4/M109A5 HOWITZERS — CONTINUED INTERVAL Semiannual Semiannual ITEM TO BE INSPECTED Air Cleaner Indicator Battery PROCEDURE a. Check indicator casing (18) for damage and corrosion. b. Check that bracket (19) is secure. c. Check nut (20) for tightness. d. Check hose (21) for leaks. Battery gasses can explode. Do not smoke, have open flame, or create sparks around battery. Severe injury may result due to explosion. a. Check and record specific gravity of each cell (para 8-28). Specific gravity ranges: Tropical electrolyte — 1.180 to 1.225 Temperate electrolyte — 1.225 to 1.280 b. Check electrolyte level; if low, add distilled water. Check battery cables for frays, missing, or broken. Clean top of batteries and coat terminals lightly with grease (para 8-28). NOT FULLY MISSION CAPABLE IF: 3. Specific gravity is not within set standards. 3. One or more batteries Unserviceable. Cables frayed, missing or broken. 2-30 WARNING