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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 G-3 LUBRICATION INSTRUCTIONS - CONTINUED 14. CHECK BALLS AND METERING HOLES (C) (11578385) -CONTINUED NOTE Use rag to catch ten check balls when sliding valve ring forward. d. Slide valve ring (45) forward and remove 10 check bails (46). e. Thoroughly wet check balls (46), vent seats (47), and metering holes (48) with CLP (item 8, Appx D) using the bore evacuator brush. f. Apply a light coat of GMD (item 19, Appx D) or GGP (item 18, Appx D) to check balls (46), valve ring (45), and unpainted cannon tube (44) surface before assembling. G-18 Change 2