TM-9-2350-274-BD M109 Battlefield Damage Assessment and Repair Download
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TM 9-2350-274-BD CHAPTER 9 TRACK AND SUSPENSION BDAR FIXES SHALL BE USED ONLY IN COMBAT AT THE DISCRETION OF THE COMMANDER AND SHALL BE REPAIRED BY STANDARD MAINTENANCE PROCEDURES AS SOON AS PRACTICABLE AFTER THE MISSION IS COMPLETED. SECTION I General 9-1. General. The M 109 suspension works with torsion bar springs with seven individual y sprung dual roadwheels on each side of the hull with four shock dampened roadwheel arms, one at each corner. The track is a two double pin steel track adjusted by a rear mounted idler assembly. Center guides are intergral to the track shoe and keep the track in position by threading between the upper surfaces of the dual road wheels. The hull allows clearance for the use of short tracking to recover or provide limited mobility. 9-2. Assessment Procedue. - track, . . . . . . . . . .. . .. go to para 9-5 - roadwheels, . . . . . . . . . . . . . . . . . . go to para 9-5 - drive sprockets, . . . . . . . . .. . . . . . . . . . . go to para 9-6 - roadwheel arms, . . . . . . . . . . . . . . . . . . . . go to para 9-7 - idler assembly, . . . . . . . . . . . . . . . . go to para 9-5 -shock absorbers, . . . . . . . . . . . . . . go to TM 9-2350-276-BD 9-1