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CHAPTER 1 INTRODUCTION
Figure 1-1. Recovery vehicle, full tracked: medium, M88A-left front view.
Figure 1-2. Recovery vehicle. full tracked: medium. M88A1-right rear view
Forms, Records and Reports
Figure 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_30
Harnesses
Miscellaneous Accessories
Tabulated Data - TM-9-2350-256-34-1_33
Tabulated Data (cont)
CHAPTER 2 DIRECT AND GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
Figure 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 List
Section Il. TROUBLESHOOTING
Table 2-2. Troubleshooting (cont)
ELECTRICAL SYSTEM
AUXILIARY POWER UNIT
OIL PRESSURE GAGE GAILS TO OPERATE
Section I II. GENERAL MAINTENANCE
Legend for fig. z-2
Figure 2-2. Deck covers, grilles and doorsschematic diagram
Legend for fig. 2-3
Figure 2-3. Cab sub forkplates schematic diagram
Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND AUXILIARIES
Figure 24. Disassembly of track fixture for use with hydraulic impact wrench adapter
Auxiliary 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_58
Figure 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 installation
Electrical Components
Bilge Pump Circuit Breaker to Switch Panel
Figure 2-13. Bilge pump circuit breaker to switch panel lead assembly--.removal and installation
Figure 2-14. Batteries to master relay, main engine and APU, voltage regulators, main engine disconnect and slave receptacle cable assemblyremoval and installation
Emergency 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_71
Main Lighting and Blackout Switch Wiring Harness
Figure 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_75
Figure 2-19. Accessories panel wiring harness and leadsremoval and installation (Sheet 2 of 2)
Installation. - TM-9-2350-256-34-1_77
Hoist Winch Cable - TM-9-2350-256-34-1_78
Figure 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_83
Figure 2-23. Main winch motor-removal and installation
Main Winch Level Winder Arm Assembly
Figure 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 side
Hydraulic Control Panel (Subplate) Assembly and Control Valves
Figure 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 installation
Mechanical Transmission Power Takeoff Drive Shaft
Figure 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 Lines
Main Hydraulic Pump Unloading Valve
Figure 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 Assemblies
Figure 2-38. Winch brake band assembliesremoval and installation
Figure 2-39. Hydraulic system oil tank-removal and installation.
Installation - TM-9-2350-256-34-1_106
Figure 2-42. Hydraulic oil tank top covers - removal and installation
Figure 2-43. Forward fuel tankremoval and installation
Installation - TM-9-2350-256-34-1_109
Figure 2-44. Fuel transfer pump and auxiliary hydraulic motor assembly-remoual and installation.
miscellaneous hydraulic components
Figure 2-45. Fuel transfer pump and auxiliary hydraulic motor assembly motor control valveremoval and installation
Adjustable Flow Hydraulic Regulator
Figure 2-47. Spade subplate and control valve assemblyremoval and installation
Figure 2-48. Flow regulating subplate assemblyremoval and installation
Figure 2-49. Boom limit pilot valves-removal and installation
Figure 2-50. Right-side front floor plate--removal and installation
CHAPTER 3 REPAIR OF RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
Section ll. REPAIR OF POWERPLANT
INSTALLATION - TM-9-2350-256-34-1_120
OIL FILTER BYPASS VALVE
OIL PRESSURE REGULATOR VALVE
Transmission Oil Breather Tube Assembly
Figure 3-4. Transmission oil breather tube assemblydisassembly and assembly.
Transmission Lockup Control (Throttle) Linkage Rod Assembly
Figure 9-5. Transmission lockup control linkage rod assemblydisassembly and assembly
Cleaning and Inspection
Section IV. REPAIR OF ELECTRIC FUEL PUMP
Figure 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_131
Figure 3-7. Electric fuel pump test.
Section V. REPAIR OF PURGE PUMP
Figure 3-8. Purge pump-disassembly and assembly (Sheet 2 of 2).
Section VI. TRANSMISSION OIL FILTER
Section VII. REPAIR OF ENGINE COOLING FAN
Assembly - TM-9-2350-256-34-1_138
Figure 3-10.3. Blower assemblydisassembly and assembly.
Assembly (cont) - TM-9-2350-256-34-1_140
Assembly (cont) - TM-9-2350-256-34-1_141
Legend for fig. 3-14.4
Figure 3-10.4. Fuel control ualue-disassembly and assembly
Remove mounting bracket
Figure 3-10.5. Burner assemblydisassembly and assembly.
Disconnect ground lead assembly
Inspection and Repair - TM-9-2350-256-34-1_147
Figure 3-10.6. Test schematic for voltage limiter.
Ground the voltage limiter
Figure 3-10.7. Flame detector switchshowing components.
Flame detector switch
Reassembly and Installation
Figure 3-10.8. Fuel control ualue identifying solenoid positions
inlet screen
Figure 3-10.9. Fuel control value test setup
Burner reassembly
Figure 3-10.10. Cutaway view of burner.
Blower reassembly
Figure 3-10.11 Diode assembly, voltage limiter, and resistor installation
Blower reassembly (cont) - TM-9-2350-256-34-1_160
Figure 3-10.12. Blower assembly showing blower wheel clearance
Blower reassembly (cont) - TM-9-2350-256-34-1_162
Figure 3-10.13. Test schematic for blower assembly
Ignition control installation
Electrical inlet assembly installation
Figure 3-10.14. Pyrometer duct dimensions
Test Setup
Figure 3-10.15. Tet schematic for complete heater assembly
Test Procedure
Section VIII. REPAIR OF ELECTRICAL COMPONENTS
Wiring Harness
Figure 3-20. Wiring harness cable connectorsrepair (Sheet 2 of 2)
Plug and Receptacle Assemblies
Section IX. REPAIR OF HYDRAULIC COMPONENTS
Figure 3-22. Mechanical transmission power takeoff drive shaft-disassembly and assembly.
Mechanical Transmission Oil Cooler Assembly
Figure 3-24. Main and hoist winch bide band assembly-disassembly and assembly.
Hydraulic System Oil Tank Assembly
Figure 3-25.. Pressure switch assembly test arrangement.
Spade Subplate and Control Valve Assembly
Fuel Transfer Pump and Auxiliary Hydraulic Motor Assembly
Section X. REPAIR OF FIRE EXTINGUISHER STOWAGE BOXES AND BRACKETS
Adjustment - TM-9-2350-256-34-1_183
Figure 3-27. Gas-particulate filter unit test and adjust.
Section 1. AUXILIARY POWER UNIT
Legend for fig. 4-1
Figure 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_192
Figure 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 diagram
Figure 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_203
Figure 4-5.2. Generator/starter brush sanding procedure
Figure 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 vehicle
CHAPTER 5 FINAL INSPECTION
Publication Indexes
APPENDIX B FABRICATED TOOLS AND EQUIPMENT
Section II. FABRICATED TOOLS AND EQUIPMENT LIST
Table B-1 Bill of Material
Figure 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_223
INDEX (cont) - TM-9-2350-256-34-1_224
INDEX (cont) - TM-9-2350-256-34-1_225
INDEX (cont) - TM-9-2350-256-34-1_226
INDEX (cont) - TM-9-2350-256-34-1_227
INDEX (cont) - TM-9-2350-256-34-1_228
INDEX (cont) - TM-9-2350-256-34-1_229
INDEX (cont) - TM-9-2350-256-34-1_230
INDEX (cont) - TM-9-2350-256-34-1_231
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