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 G-3 LUBRICATION INSTRUCTIONS — CONTINUED 10. REPLENISHER ACCUMULATOR ASSEMBLY (C) NOTE Pressure may increase during normal firing due to heat expansion. Safe-to-fire range is 17 to 50 psi (117 to 345 kPa). Before firing, check pressure gage (26); reading should be 17 to 24 psi (117 to 165 kPa) at 70° F (210 C). If pressure gage reading is low, replenish system with hydraulic fluid, OHT (Table&l) as follows: a. Fill M3 oil gun (para 3–6.6). b. Place cannon tube at zero elevation. c. Using adapter, hose, and reducer, attach M3 oil gun loosely to filling valve (27) of replenisher accumulator assem- bly (28). Turn handle (29) of M3 oil gun clockwise until clean liquid flows around filling valve. d. Fill replenisher accumulator assembly (28) using M3 oil gun until pressure gage (26) reads 17 to 24 psi (117 to 165 kPa). If pressure is high, drain or bleed. G-14