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 Item No. 69 70 71 Interval Weekly Weekly Weekly Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWlTZER - CONTINUED Location Item to Check/ Service WARNING 2-84 Change 2 Driver’s Hatch Winterization Heater Kit Personnel Heater Crewmember Procedure DRIVER a. Check driver’s hatch cover seal for tears or deterioration. b. Check for proper operation. DRIVER NOTE (Seasonal) Check only when operation is required. Check for proper operation. Inspect for any fuel or exhaust leakage and electrical shorts. DRIVER If the personnel heater operates improperly, fuel may overflow, causing danger of fire or explosion. Be alert during personnel heater operation for exhaust odors or signs of exposure to carbon monoxide. Carbon monoxide can cause death. If present, shut off the personnel heater and ventilate the vehicle. Explosive/flammable materials are a fire haz- ard. Do not store aerosol cans, solvents, fuel, etc., anywhere inside vehicle. Stow ammuni- tion and powder in authorized stowage racks. Fumes may accumulate in the ventilating air circuit or the personnel heater may be dam- aged by reverse burning if it is not operated for at least five minutes each time it is started. a. Operate personnel heater for at least five min- utes each week. Be alert for signs of damage, loose fittings, loose connections, and fuel leaks; notify unit maintenance if any are found. b. Check crew/driver duct outlets for steady warm output. If there is no warm air output, shut off heater and notify unit maintenance. Not Fully Mission Capable If: Any electrical short is found. Any exhaust leak is found. Any Class Ill fuel leak is found. Loose fittings, loose connec- tions, or fuel leak exists.