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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. 17 lnternal Before Table 2–1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER — CONTINUED Location Item to Check/ Service Replenisher accumulator Assembly Pressure Crewmember Procedure CHIEF OF SECTION To prevent damage to equipment, make sure M3 oil gun is loaded with hydraulic fluid (item 20, Appx D) and not lubricating oil. NOTE Replenisher accumulator assembly (1) pres- sure gage (2) reading (before firing) should be 17 to 24 psi (117 to 165 kPa). Pressure may increase during normal firing due to heat ex- pansion. Safe-to-fire range is 17 to 50 psi (117 to 344 kPa). During firing, be sure that replenisher accumulator assembly (1) pressure gage (2) shows a pressure of 17 to 50 psi (117 to 344 kPa). If pressure is lower or higher, add or bleed hydraulic fluid from replen- isher accumulator assembly. When replenisher ac- cumulator assembly pressure gage reading is low, add hydraulic fluid (item 20, Appx D) to the replenisher accumulator assembly as follows: a. Place cannon assembly at zero elevation. Not Fully Mission Capable If: 2-30