TM 9-2350-287-20-1CHAPTER 3POWERPACK MAINTENANCEParagraphPageNumberParagraph TitleNumber3-1General ............................................................................................................................................ 3-13-2Powerpack Replacement .................................................................................................................. 3-23-3Ground Hop Procedures ................................................................................................................... 3-163-4Shock Mount and Bracket Replacement ........................................................................................... 3-363-5Oil Filter Bracket Replacement ......................................................................................................... 3-383-6Oil Cooler Hoses Replacement ......................................................................................................... 3-393-7Oil Sampler System Replacement .................................................................................................... 3-413-8Oil Filter and Oil Filter Adapter Repair .............................................................................................. 3-433-9Liquid (Lube Oil) Level Gage Rod and Tube Assembly Replacement ................................................ 3-453-10Crankcase and Gear Train Breather Tubes Replacement ................................................................. 3-463-11Crossover Exhaust Pipe Replacement .............................................................................................. 3-473-12Accessory Drive Adapter Replacement ............................................................................................. 3-483-1. GENERAL.This chapter describes and illustrates procedures for removal and installation of the powerpack and transmission trunnioncaps. The powerpack consists of the engine, transfercase, transmission assembly, and related components.Procedures for operating the powerpack after it has been removed from the vehicle are also described and illustrated.The powerpack will be given periodic checks to find possible fire hazards. Inspect powerpack cooling accessories, airshrouds, wiring harnesses, and hull compartment for foreign matter during each maintenance service.Whenever a powerpack is removed for maintenance, or because of a malfunction, general cleaning and inspection of wiringharnesses, hoses, tubes, and the engine compartment should be standard practice (paras 2-24 and 2-25).Operating the powerpack out of the vehicle lets maintenance personnel inspect the control and drive components of thepowerpack by hand-operating the control linkages on the transmission. Components can be checked for proper functioningand performance with the powerpack outside the vehicle without harm to the powerpack.3-1
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