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 Interval Before Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR M109 SELF-PROPELLED HOWITZER - CONTINUED Location Item to Check/ Service Replenisher Accumulator Assembly Pressure (Cont) Crewmember Procedure CHIEF OF SECTION d. Depress cannon assembly to maximum depres- sion. Loosen right-hand bleeder plug (9) to bleed trapped air from rear of buffer assembly (10). When air-free fluid flows, tighten right-hand bleeder plug. e. Elevate cannon assembly to +50 mils. Loosen left-hand bleeder plug (11) to bleed trapped air from front of buffer assembly (10). When air-free fluid flows, tighten left-hand bleeder plug. f. Elevate cannon assembly to 180 mils; install hose and open bleeder valve (12). When air- free fluid flows from hose, tighten bleeder valve. Remove hose and stow in oddment tray. g. Check replenisher accumulator assembly (1) pressure gage (2) for 17 to 24 psi (117 to 165 kPa). h. If low, add hydraulic fluid (item 20, Appx D) to correct operating range. If overfilled, drain. i. Rebleed system until all air is bled from replen- isher accumulator assembly (1) and mount. Check for fluid leaks. Not Fully Mission Capable If: Class III leak found. 2-33