CHAPTER 1 INTRODUCTIONFigure 1-1. Recovery vehicle, full tracked: medium, M88A-left front view.Figure 1-2. Recovery vehicle. full tracked: medium. M88A1-right rear viewForms, Records and ReportsFigure 1-3. Location of major components, assemblies and auxiliaries (Sheet 1 of 7)Figure 1-3. Location of major components, assemblies and auxiliaries (Sheet 2 of 7)Figure 1-3. Location of major components, assemblies and auxilianes (Sheet 3 of 7)Figure 1-3. Location of major components, assemblies and auxiliaries (Sheet 4 of 7).Figure 1-3. Location of major components, assemblies, and auxiliaries (Sheet 5 of 7)Figure 1-3. Location of major components, assemblies, and auxiliaries (Sheet 6 of 7)Figure 1-3. Location of major components, assemblies and auxiliaries (Sheet 7 of 7)Powerplant - TM-9-2350-256-34-1_30HarnessesMiscellaneous AccessoriesTabulated Data - TM-9-2350-256-34-1_33Tabulated Data (cont)CHAPTER 2 DIRECT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONSFigure 2-1. Special tools and equipment (Sheet 1 of 3)Figure 2-1. Special tools and equipment (Sheet 2 of 3)Figure 2-1. Special tools and equipment (Sheet 3 of 3)Table 2-1. Special Tools ListSection Il. TROUBLESHOOTINGTable 2-2. Troubleshooting (cont)ELECTRICAL SYSTEMAUXILIARY POWER UNITOIL PRESSURE GAGE GAILS TO OPERATESection I II. GENERAL MAINTENANCELegend for fig. z-2Figure 2-2. Deck covers, grilles and doorsschematic diagramLegend for fig. 2-3Figure 2-3. Cab sub forkplates schematic diagramSection IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND AUXILIARIESFigure 24. Disassembly of track fixture for use with hydraulic impact wrench adapterAuxiliary Power Unit Figure 2-6. Auxiliary power unit-removal and installation (Sheet 1 of 3)Figure 2-6. Auxiliury power unit-removal and installation (Sheet 2 of 3).Figure 2-6. Auxiliary power unit-removal and installation (Sheet 3 of 3).Removal. - TM-9-2350-256-34-1_58Figure 2-7. Left rear fuel tankremoval and installation (Sheet 1 of 2).Figure 2-7 Left rear fuel tank removal and installation( Sheet2 of 2)Figure2-8. Right rearfuel tank--removal and installationElectrical ComponentsBilge Pump Circuit Breaker to Switch PanelFigure 2-13. Bilge pump circuit breaker to switch panel lead assembly--.removal and installationFigure 2-14. Batteries to master relay, main engine and APU, voltage regulators, main engine disconnect and slave receptacle cable assemblyremoval and installationEmergency Flasher Circuit Figure 2-15. Powerplant wiring harnessremoual and installation. (Sheet 1 of 2).Figure 2-15. Powerplant wiring harness removal and installation (Sheet 2 of 2)Installation - TM-9-2350-256-34-1_71Main Lighting and Blackout Switch Wiring HarnessFigure 2-18. Main lighting and blackout switch wiring harnessremoval and installation (Sheet 1 of 2)Figure 2-18. Main switching panel wiring harness and leadsremoval and installation (Sheet 2 of 2).TM-9-2350-256-34-1_75Figure 2-19. Accessories panel wiring harness and leadsremoval and installation (Sheet 2 of 2)Installation. - TM-9-2350-256-34-1_77Hoist Winch Cable - TM-9-2350-256-34-1_78Figure 2-21. Hoisting boom - removal and installation (Sheet 1 of 2)Figure 2-21. Hoisting boom removal and installation (Sheet 2 of 2)Figure 2-22. Main winch and spade assembly - removal and installation (Sheet 1 of 2)Figure 2-22. Main winch and spade assembly removal and installation (Sheet 2 of 2).Installation - TM-9-2350-256-34-1_83Figure 2-23. Main winch motor-removal and installationMain Winch Level Winder Arm AssemblyFigure 2-25. Boom stayline actuating cylinders removal and installation (Sheet 1 of 2)Figure 2-25. Boom stayline actuating cylindersremoval and installation (Sheet 2 of 2).Figure 2-26 Boom actuating cylinders -Removal and installation access to right sideHydraulic Control Panel (Subplate) Assembly and Control ValvesFigure 2-28. Hydraulic control panel (subplate) assemblyremoval and installation (Sheet 1 of 3).Figure 2-28. Hydraulic control panel (subplate) assemblyremoval and installation (Sheet 2 of 3)Figure 2-28. Hydraulic control panel (Subplate) assembly-removala and installation (Sheet 3 of 3).Figure 2-29. Hydraulic valves on control panel (subplate) assembly -removal and installationMechanical Transmission Power Takeoff Drive ShaftFigure 2-30. Mechanical transmission power take off drive shaftremoval and installation.Figure 2-31. Mechanical transmission and main hydraulic pump assemblyremoval and installation (Sheet 1 of 2)Mechanical Transmission Oil Cooler and main hydraulic pump assembly in reverse order of Assembly and LinesMain Hydraulic Pump Unloading ValveFigure 2-34. Hoist winch assemblyremoval and installation (Sheet 1 of 2)Figure 2-34. Hoist winch assemblyremoval and installation (Sheet 2 of 2)Figure 2-35. Hoist winch counterbalance valveremoval and installation.Figure 2-36. Hoist winch motorremoval and installation.Main Winch and Hoist Winch Brake Band AssembliesFigure 2-38. Winch brake band assembliesremoval and installationFigure 2-39. Hydraulic system oil tank-removal and installation.Installation - TM-9-2350-256-34-1_106Figure 2-42. Hydraulic oil tank top covers - removal and installationFigure 2-43. Forward fuel tankremoval and installationInstallation - TM-9-2350-256-34-1_109Figure 2-44. Fuel transfer pump and auxiliary hydraulic motor assembly-remoual and installation.miscellaneous hydraulic componentsFigure 2-45. Fuel transfer pump and auxiliary hydraulic motor assembly motor control valveremoval and installationAdjustable Flow Hydraulic RegulatorFigure 2-47. Spade subplate and control valve assemblyremoval and installationFigure 2-48. Flow regulating subplate assemblyremoval and installationFigure 2-49. Boom limit pilot valves-removal and installationFigure 2-50. Right-side front floor plate--removal and installationCHAPTER 3 REPAIR OF RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1Section ll. REPAIR OF POWERPLANTINSTALLATION - TM-9-2350-256-34-1_120OIL FILTER BYPASS VALVEOIL PRESSURE REGULATOR VALVETransmission Oil Breather Tube AssemblyFigure 3-4. Transmission oil breather tube assemblydisassembly and assembly.Transmission Lockup Control (Throttle) Linkage Rod AssemblyFigure 9-5. Transmission lockup control linkage rod assemblydisassembly and assemblyCleaning and InspectionSection IV. REPAIR OF ELECTRIC FUEL PUMPFigure 3-6. Electric fuel pump and mount assemblydisassembly and assembly (Sheet 1 of 2).Figure 3-6. Electric fuel pump and mount assembly-disassembly and assembly (Sheet 2 of 2)Inspection and Repair - TM-9-2350-256-34-1_131Figure 3-7. Electric fuel pump test.Section V. REPAIR OF PURGE PUMPFigure 3-8. Purge pump-disassembly and assembly (Sheet 2 of 2).Section VI. TRANSMISSION OIL FILTERSection VII. REPAIR OF ENGINE COOLING FANAssembly - TM-9-2350-256-34-1_138Figure 3-10.3. Blower assemblydisassembly and assembly.Assembly (cont) - TM-9-2350-256-34-1_140Assembly (cont) - TM-9-2350-256-34-1_141Legend for fig. 3-14.4Figure 3-10.4. Fuel control ualue-disassembly and assemblyRemove mounting bracketFigure 3-10.5. Burner assemblydisassembly and assembly.Disconnect ground lead assemblyInspection and Repair - TM-9-2350-256-34-1_147Figure 3-10.6. Test schematic for voltage limiter.Ground the voltage limiterFigure 3-10.7. Flame detector switchshowing components.Flame detector switchReassembly and InstallationFigure 3-10.8. Fuel control ualue identifying solenoid positionsinlet screen Figure 3-10.9. Fuel control value test setupBurner reassemblyFigure 3-10.10. Cutaway view of burner.Blower reassembly Figure 3-10.11 Diode assembly, voltage limiter, and resistor installationBlower reassembly (cont) - TM-9-2350-256-34-1_160Figure 3-10.12. Blower assembly showing blower wheel clearanceBlower reassembly (cont) - TM-9-2350-256-34-1_162Figure 3-10.13. Test schematic for blower assemblyIgnition control installation Electrical inlet assembly installationFigure 3-10.14. Pyrometer duct dimensionsTest SetupFigure 3-10.15. Tet schematic for complete heater assemblyTest ProcedureSection VIII. REPAIR OF ELECTRICAL COMPONENTSWiring HarnessFigure 3-20. Wiring harness cable connectorsrepair (Sheet 2 of 2)Plug and Receptacle AssembliesSection IX. REPAIR OF HYDRAULIC COMPONENTSFigure 3-22. Mechanical transmission power takeoff drive shaft-disassembly and assembly.Mechanical Transmission Oil Cooler AssemblyFigure 3-24. Main and hoist winch bide band assembly-disassembly and assembly.Hydraulic System Oil Tank AssemblyFigure 3-25.. Pressure switch assembly test arrangement.Spade Subplate and Control Valve AssemblyFuel Transfer Pump and Auxiliary Hydraulic Motor AssemblySection X. REPAIR OF FIRE EXTINGUISHER STOWAGE BOXES AND BRACKETSAdjustment - TM-9-2350-256-34-1_183Figure 3-27. Gas-particulate filter unit test and adjust.Section 1. AUXILIARY POWER UNITLegend for fig. 4-1Figure 4-1. Auxiliary power unit (Sheet 1 of 3)Figure 4-1. Auxiliary power unit (Sheet 2 of 3)Figure 4-1. Auxiliary power unit (Sheet 3 of 3)Starting System.Figure 4-2. Test stnnd for auxiltiry power unit.Disassembly - TM-9-2350-256-34-1_192Figure 4-3. Auxiliary power unit-exploded view (Sheet 1 of 3).Figure 4-3. Auxiliary power unit-unit-exploded view (Sheet 2 of 3)Figure 4-3. Auxiliary power unit-exploded view (Sheer 3of 3).Figure 4-4. Auxiliary power unit wiring diagramFigure 4-5. Auxiliary power unit-disassembly and assembly (Sheet 1 of 6).Figure 4-5. Auxiliary power unit-disassembly and assembly (Sheet 2 of 6)Figure 4-5. Auxiliary power unitdisassembly and assembly (Sheet 3 of 6).Figure 4-5. Auxiliary power unit-disassembly and assembly (Sheet 4 of 6).Figure 4-5. Auxiliary power unitdisassembly and assembly (Sheet 5 of 6).Figure 4-5. Auxiliary power unit-disassembly and assembly (Sheet 6 of 6)Cleaning - TM-9-2350-256-34-1_203Figure 4-5.2. Generator/starter brush sanding procedureFigure 4-6. Auxiliary power unit test run outside vehicle (Sheet 1 of 2)Figure 4-6. Auxiliary power unit test run outside vehicle (Sheet 2 of 2)Test inside vehicleCHAPTER 5 FINAL INSPECTIONPublication IndexesAPPENDIX B FABRICATED TOOLS AND EQUIPMENTSection II. FABRICATED TOOLS AND EQUIPMENT LISTTable B-1 Bill of MaterialFigure B-1. Engine and transmission cart - M88A1 (Sheet 1 of 6)Figure B-1 Engine and transmission cart- M88A1 (Sheet 2 of 6)Figure B-1. Engine and transmission cart - M88A1 (Sheet 3 of 6)Figure B-1. Engine and transmission cart - M88A1 (Sheet 4 of 6).Figure B-1. Engine and transmission cart - M88A1 (Sheet 5 of 6).Figure B-1. Engine and transmission cart- M88A1 (Sheet 6 of 6).INDEX - TM-9-2350-256-34-1_223INDEX (cont) - TM-9-2350-256-34-1_224INDEX (cont) - TM-9-2350-256-34-1_225INDEX (cont) - TM-9-2350-256-34-1_226INDEX (cont) - TM-9-2350-256-34-1_227INDEX (cont) - TM-9-2350-256-34-1_228INDEX (cont) - TM-9-2350-256-34-1_229INDEX (cont) - TM-9-2350-256-34-1_230INDEX (cont) - TM-9-2350-256-34-1_231