TM 5-3825-230-14&P CHAPTER 5 DIRECT SUPPORT/GENERAL SUPPORT MAINTENANCE INSTRUCTIONS Para Contents Page 5-1 Common Tools and Equipment ............................................................................................... 5-2 5-2 Special Tools, TMDE and Support Equipment ......................................................................... 5-2 5-3 Repair Parts ............................................................................................................................ 5-2 5-4 Troubleshooting Introduction ................................................................................................... 5-2 5-5 Troubleshooting Instructions .................................................................................................... 5-2 5-6 Maintenance Introduction ........................................................................................................ 5-4 5-7 Engine Timing ......................................................................................................................... 5-11 5-8 Engine Bumping Clearance ..................................................................................................... 5-13 5-9 Engine Cylinder Replacement ................................................................................................. 5-14 5-10 Crankcase Assembly Replacement ......................................................................................... 5-18 5-11 Tachometer Gear Wheel and Housing Replacement............................................................... 5-20 5-12 Rear Engine Housing Replacement ......................................................................................... 5-21 5-13 Cylinder Head Assembly Replacement/Repair ........................................................................ 5-23 5-14 Crankshaft Replacement ......................................................................................................... 5-26 5-15 Front Support Replacement .....................................................................................................  5-31 5-16 Rear Support Replacement ..................................................................................................... 5-33 5-17 Flywheel With Crown Gear Replacement ................................................................................ 5-35 5-18 Crown Gear Replacement ....................................................................................................... 5-38 5-19 Piston Assembly Replacement................................................................................................. 5-39 5-20 Piston Repair/Ring Set Replacement ....................................................................................... 5-41 5-21 Connecting Rod Assembly Replacement/Repair...................................................................... 5-43 5-22 Rocker Arm Cover Assembly Repair  ....................................................................................... 5-46 5-23 Rocker Arm Assembly Replacement ....................................................................................... 5-48 5-24 Intake And Exhaust Valve Replacement .................................................................................. 5-51 5-25 Valve Adjustment .................................................................................................................... 5-56 5-26 Camshaft Replacement ........................................................................................................... 5-57 5-27 Oil Pump Replacement ............................................................................................................ 5-60 5-28 Throttle Control Assembly Replacement/Repair....................................................................... 5-62 5-29 Governor Control Lever Assembly Replacement/Repair........................................................... 5-64 5-30 Fuel Injector Assembly Replacement ....................................................................................... 5-67 5-31 Fuel Injector Nozzle Assembly Service .................................................................................... 5-69 5-32 Injection Pump Timing  ............................................................................................................. 5-71 5-33 Injection Pump Replacement ................................................................................................... 5-74 5-34 Speed Governor And Support Yoke Replacement/Repair......................................................... 5-78 5-35 Starter Repair .......................................................................................................................... 5-83 5-36 Battery Repair ......................................................................................................................... 5-91 5-37 Main Frame Repair .................................................................................................................. 5-92 5-38 Hydraulic Hose Fabrication And Testing .................................................................................. 5-93 5-39 Hydraulic Pump Assembly Repair  ........................................................................................... 5-94 5-40 Hydraulic Motor Repair............................................................................................................. 5-99 5-41 Hydraulic Control Valve Repair  ............................................................................................... 5-102 5-42 Hydraulic Cylinder Repair ........................................................................................................ 5-111 5-43 Spray Pump Repair ................................................................................................................. 5-113 5-1