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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 14.1. CHECK BALLS AND METERING HOLES (C) (11580776) -CONTINUED d. Slide main reservoir (48.8) forward on cannon tube (48.7) separating it from the preservoir (48.9). NOTE Use rag to catch nine check balls when sliding valve ring forward. e. Slide valve ring (48.10) forward and remove nine check balls (48.11). The balls should fall out. f. Slide preservoir (48.9) forward on cannon tube (48.7). g. Thoroughly clean evacuator ball valves (48.11), 10 evacuator orifices (48.12), and tube threads (48.13) with CLP (item 8, Appx D) using the bore evacuator brush. Clean three metering holes (48.14) with CLP using brush. h. Apply a light coat of GMD (item 19, Appx D) or GGP (item 18, Appx D) to check balls (48.11), valve ring (48.10) and unpainted cannon tube (48.7) surface before assembling. For nonfiring periods, bore evacuator and check balls are cleaned and lubricated monthly. G-18.2 Change 2