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 19. EQUILIBRATED ELEVATION MECHANISM ASSEMBLY (C) Lubricate two lubrication fittings (55) with GAA (item 17, Appx D). 20. TRACK ADJUSTER (C) Lubricant is under high pressure. Loosen bleeder plug slowly to avoid injury. When increasing track tension, do not let track adjuster extend beyond 3-1/2 inches (8.89 cm) to avoid track adjuster damage. Check track tension on track adjuster (56). Clean lubrication fitting (57). Pump GAA (item 17, Appx D) into lubrication fitting to increase track tension. Open bleeder plug (58) to decrease track tension. G-22