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 2–7 GENERAL — CONTINUED • To prevent damage and overheating of engine and transmission when starting from a halt, begin with transmission in Range 1. • To prevent transmission from overheating, do not hold howitzer on incline with transmission in gear. 2-8 ASSEMBLY AND PREPARATION FOR USE Before operating a new vehicle, make sure unit maintenance has performed all service upon receipt procedures. 2-9 INITIAL ADJUSTMENTS AND CHECKS 2-9.1 Routine Checks Check the controls before starting the vehicle and ensure all of the following conditions are met. 1 2 3 Before operation PMCS procedures have been performed (Table 2–1). Do not drive vehicle with cannon tube out of travel lock assembly. Operation with cannon tube out of travel lock assembly can cause serious vehicle damage. Cannon tube (1) is positioned in travel lock assembly (2) and is locked in place NOTE • When turret lock assembly covers word LOCKED, turret lock assembly is locked. • If turret lock assembly sticks in positioning hole, manually traverse cab slightly left or right to aline lock teeth with cab ring teeth. Secure turret lock assembly by squeezing manual control levers (3 and 4) together to rotate turret assembly over positioning hole (5). lock 2-90