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 2-10 OPERATING PROCEDURES — CONTINUED 2-10.1 Starting Procedures — Continued a. Starting Engine — Continued NOTE The starter must be engaged after the time periods shown below. A starter protection device in the engine compartment of M109A4/M109A5 vehicles will disengage the starter automatically. For M109A2 and M109A3 vehicles, these periods must be timed as indicated: After 30 seconds in temperatures above 50°F (10° C). After 60 seconds in temperatures between 0 and 50° F (–17 and 10° C). After 120 seconds in temperatures below 0°F(–17° C). 9 Push STARTER control switch (7) to START position and hold until engine starts. (Do not hold for more than 30 seconds except as noted above). NOTE M109A4/M109A5 howitzer engine model 7083-7396 fixed instrument panel is shown. 2-97