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 2–20 Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER — CONTINUED Location Item No. Not Fully Mission Capable If: Crewmember Procedure Item to Check/ Service Interval 5 Before Radiator DRIVER Check coolant level in radiator. Add coolant as needed. Any coolant leak exists or radiator cap (1) is mis- sing. 1 6 Before Driver’s Compart- ment Fire Extinguisher Handle DRIVER Check to ensure fire extinguisher handle (1) is properly seated and laced with wire seal (2). Wire seal (2) is broken, missing, or fire extinguish- er handle (1) is pulled. 1 2 7 Before Neutral Safety Switch DRIVER WARNING To prevent injury, make sure all personnel are a safe distance from vehicle. Make sure parking brake is engaged. Pull fuel shutoff control assembly out. Place vehicle in first gear. Attempt to start engine. Engine cranks. Notify unit maintenance.