CHAPTER 1 INTODUCTION
Figure 1-2. Semitrailer, low-bed, heavy-equipment transporter, 60-ton, M747 (right rear view )
FIGURE 1-3. Air suspension system.
RESERVOIR AIR LINE
Suspension control instruction plate
Figure 1-4. Data and identification plates
Tabulated Data - TM-9-2330-294-140015
Table 1-1. Expendable and Consumable Operating Supplies
CHAPTER 2 OPERATING NSTRUCTIONS
Figure 2-1. Controls and components location
Service Brakes - TM-9-2330-294-140019
Figure 2-2. Fail-safe chamber assembly
Figure 2-3. Brake release controls and tank air fill
Figure 2-4. Intervehicular connections and circuit breakers
Figure 2-5. Rear electrical components
Figure 2-6. Retractable clearance light assembly (semitrailer No. 1 through 200 )
Figure 2-7. Retractable clearance light assembly (semitrailer No. 201 and on )
Figure 2-8. Air suspension controls and air supply value
Auxiliary Air Supply Valve
Figure 2-9. Air reservoir drain cock
Figure 2-10. Landing gear assembly
Figure 2-11. Loading ramp and tie-down assembly
Figure 2-12. Lateral positioning or removal of ramps
Jacking Pads
Figure 2-13. M747 Curbing instrsuctions
Figure 2-14. Snatch block assembly
Figure 2-15 Semitrailer winching components and tiedown brackets
Figure 2-16. Using blocks on semitrailer
Precautions
Loading and Unloading M747 Semitrailer Using Self-Powered Payload Vehicle
Drive-On Loading
Figure 2-17. Winching a vehicle on M747 semitrailer
SECURING PAYLOAD VEHICLE TO SEMI TRAILER
Figure 2-18. Payload vehicle secured to semitrailer
Securing Payload With Tracks
Figure 2-19. Rigging tractor left winch cable for winching payload vehicle off semitrailer
Figure 2-20. Rigging to winch ON and OFF different payload weights (Sheet 1 of 2 )
Figure 2-20. Rigging to winch ON and OFF different payload weights (Sheet 2 of 2 )
Figure 2-21. Loading two M113 (or M114) vehicles
Loading and Unloading Non-Operating Payload Vehicle
Checking and Adjusting Suspension Air Pressure
Changing Wheel and Tire Assembly
Figure 2-22. Wheel nut tightening sequence
Section II. OPERATION UNDER UNUSUAL CONDITIONS - TM-9-2330-294-140052
Fording Operations - TM-9-2330-294-140053
CHAPTER 3 OPERATOR / CREW MAINTENANCE INSTRUCTIONS
LUBRICATION CHART - TM-9-2330-294-140056
LUBRICATION CHART -CONT. - TM-9-2330-294-140057
Figure 3-3. Lubrication points--localized views
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES - TM-9-2330-294-140059
Table 3-1. Operator Preventive Maintenance Checks and Services
AIR SUSPENSION SYSTEM - TM-9-2330-294-140061
AIR TANKS - TM-9-2330-294-140062
Section III. TROUBLESHOOTING - TM-9-2330-294-140064
Table 3-3. Troubleshooting Air System
SUSPENSION AIR SYSTEM - TM-9-2330-294-140066
Section I. SERVICE UPON RECEIPT OF MATERIAL - TM-9-2330-294-140067
Figure 4-1. Special Tools
Table 4-1. Special Tools and Equipment - TM-9-2330-294-140069
Figure 4-2. Coating of walk way surfaces
Figure 4-3. Stenciling the M747 semitrailer
Section IV. PREVENTIVE MAINTENANCE CHECK AND SERVICES (QUARTERLY)
Table 4-2. Preventive Maintenance Checks and Services (Quarterly)
Table 4-3. Troubleshooting Semitrailer
SUSPENSION SYSTEM - TM-9-2330-294-140075
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140076
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140077
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140078
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140079
SUSPENSION AIR SYSTEM - TM-9-2330-294-140080
Section V. TROUBLESHOOTING - TM-9-2330-294-140081
Section VI. ELECTRICAL SYSTEM MAINTENANCE - TM-9-2330-294-140082
FIGURE 4-4. WIRING SCHEMATIC DIAGRAM ( SEMITRAILER NO. 1 THROUGH 200 )
FIGURE 4-4. WIRING SCHEMATIC DIAGRAM ( SEMITRAILER NO.201 AND ON )
Circuit Breaker Replacement - TM-9-2330-294-140085
Figure 4-6. Intervehicular receptacle cover and circuit breaker
Figure 4-7. Utility outlet
Figure 4-8. Composite stoplight-taillight
Figure 4-9. Composite stoplight- taillight exploded view
Figure 4-10. Retractable clearance light housing assembly (semitrailer No. 1 through 200 )
Figure 4-11. Retractable clearance light housing assembly (semitrailer No. 201 and on )
Figure 4-12. Retractable clearance light housing assembly (semitrailer No. 1 through 200 )
Figure 4-13. Retractable clearance light housing assembly (semitrailer No. 301 and on )
Figure 4-14. Clearance marker lightexploded view
Figure 4-15. Clearance marker light wiring harness (semitrailer No. 1 through 200 )
Frame Bracket Assembly Replacement or Repair
Figure 4-18. Stationary clearance light assembly (semitrailer No. 1 through 200 )
Stationary Clearance Light Assembly Repair
FIGURE 4- 20. MAIN WIRING HARNESS ( SEMITRAILER NO. 1 THROUGH 200 )
FIGURE 4- 21. MAIN WIRING HARNESS ( SEMITRAILER NO.201 AND ON )
Figure 4-22. Low-air-pressure warning switch
Section VII. BRAKE MAINTENANCE
Figure 4-23. Service brake schematic diagram
Figure 4-24. Service brake lining adjustment
Figure 4-25. Fail-safe chamber assembly schematic diagram (semitrailer No. 1 through 200 )
Figure 4-26. Fail-safe chamber assembly schematic diagmm (semitrailer No. 201 and on )
FIGURE 4 -27. AIR BRAKE SYSTEM SCHEMATIC DIAGRAM (SEMITRAILER NO. 1 THROUGH 200 )
Fail-Safe Unit Manual Compression and Release
FIGURE 4 -28. AIR BRAKE SYSTEM SCHEMATIC DIAGRAM (SEMITRAILER NO.201 AND ON )
Figure 4-29. Brake shoe removal or installation
FIGURE 4-29. Upper brake shoe installation
Figure 4-30. Plunger and brake shoe position
Figure 4-31. Fail-safe housing assembly
Figure 4-32. Dust shield
Figure 4-33. Air chamber assembly removal or installation
Figure 4-34. Wedge assembly removal or installation
Figure 4-35. Plunger housing assembly
Figure 4-37. Plunger housing assembly (semitrailer No. 201 and on.)
Figure 4-38. Seal assembly installation onto anchor plunger
Figure 4-39. Seating plunger seal assembly in plunger housing
Section VIII. AIR SYSTEM MAINTENANCE
Air Tank Leakage Test
Leakage test - TM-9-2330-294-140125
Two-Way Check Value Operation and Test
Repressurizing Air System
Figure 4-41. Air suspension system lines and fittings (semitrailer No. 1 through 200 )
Figure 4-41. Air suspension system lines and fittings (semitrailer No. 1 through 200 ) -CONT.
Figure 4-42. Air suspension system tube clamps (semitrailer No. 1 through 200 )
Figure 4-43. Air brake system lines and fittings (Semitrailer No. 1 through 200 ) (sheet 1 of 2 )
Figure 4-43. Air brake system lines and fittings (semitrailer No. 1 through 200 ) (sheet 2 of 2 )
Figure 4-44. Air brake system tube clamps (semitrailer No. 1 through 200 )
Nylon Tubing and Fittings
Figure 4-45. Air suspension system lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-45. Air suspension system lines, clamps and fittings (semitrailer No. 201 and on ) -CONT.
Figure 4-46. Air brake system lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-47. Fail-safe and air reservoir lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-48. Air brake system axle lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-49. Intervehicular coupling half
Figure 4-50. Hose assemblies and attaching parts (semitrailer No. 1 through 200 )
Figure 4-51. Hose assemblies and attaching parts (semitrailer No. 201 and on )
Figure 4-52. Front emergency relay valve
Figure 4-53. Rear emergency relay valve
Figure 4-54. Auxiliary air supply valve
FIGURE 4- 55. AIR RESERVOIRS ( SEMITRAILER NO. 1 THROUGH 200 )
Figure 4-56. Air reservoirs (semitrailer No. 201 and on )
Figure 4-57. Brake release valves and air reservoir fill valve
Figure 4-58. Air suspension control, regulator and shutoff valves.
Section IX. AIR SUSPENSION SYSTEM MAINTENANCE
Figure 4-59. Air suspension system schematic diagram(semitrailer No. 1 through 200)
Figure 4-59. Air suspension system schematic diagram(semitrailer No. 1 through 200) -CONT.
Figure 4-60. Air suspension system schematic diagram (semitrailer No. 201 and on )
Air Suspension Axle Lift Assembly
Figure 4-61. Axle lift components above frame
Air Suspension Spring Assembly
Figure 4-64. Shock absorber and axle stop chain (semitrailer No. 1 through 200 )
Figure 4-65. Shock absorber and axle stop chain (semitrailer No. 201 and on
Section X. WHEELS, TIRES, HUBS AND DRUMS MAINTENANCE
Figure 4-67. Breaking the tire bead
Figure 4-68. Using tire irons to lift first bead over rim
Figure 4-68. Using tire irons to lift first bead over rim -CONT.
Figure 4-69. Using tire irons and hammer to lift second bead over rim
Figure 4-70. Installation of tire on wheel fitting first bead over
Figure 4-70. Installation of tire on wheel fitting first bead over -CONT.
Figure 4-71. Installation of tire on wheel fitting second bead over rim
Hubs and Drums - TM-9-2330-294-140168
Figure 4-72. Hub and drum assembly
Figure 4-73. Hub and drum assembly disassembly or assembly
Figure 4-74. Wheel bearing cup installation
Figure 4-76. Wiper installation
Section XI. FRAME AND TOWING ATTACHMENT MAINTENANCE
Figure 4-78. Loading ramp
Figure 4-79. Snatch block, planks, spare wheel carrier and data plates
Landing Gear - TM-9-2330-294-140176
Figure 4-80. Landing gear
Section XII. STOWAGE PROVISIONS, WINCHING COMPONENTS AND ACCESSORY ITEMS MAINTENANCE
Roller Assemblies
Figure 4-82. Reflectors
Section XIII. DRAIN HOLES INSTALLATION, SNATCH BLOCK BRACKET
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT - TM-9-2330-294-140183
Section II. TROUBLESHOOTING - TM-9-2330-294-140184
Specific Procedures - TM-9-2330-294-140185
Axle Alinement - TM-9-2330-294-140186
Figure 5-2. New semitrailer suspension alinement
Figure 5-3. Typical main wiring harness clamp installation
Air System Components
Figure 5-4. Front suspension assembly disconnect points
Figure 5-5. Front suspension systemexploded view
Figure 5-6. A lining beam center pin in saddle assembly
Rear Axle Equalizer Beam and Axle
Figure 5-7. Rear axle-equalizer beam assembly removal or installation
Figure 5-8. Rear axle-equalizer beam assembly-exploded view
Lower Axle Stop and Guide Pads
FIGURE 5-10. LOWER AXLE STOP AND GUIDE PADS (SEMITRAILER No. 201 AND ON.)
Torque Rod
Figure 5-11. Gooseneck and platform rollers
Swing-away Roller
Figure 5-12. Swing-away roller assembly
Reflectors - TM-9-2330-294-140202
CHAPTER 6 REPAIR INSTRUCTIONS - TM-9-2330-294-140203
Figure 6-1. Suspension equalizer beam
Figure 6-2. Front equalizer beam and axle measurement and inspection points
Figure 6-3. Equalizer beam center bushing installation
Figure 6-4. Dimensions for counterboring new ball and socket assembly
Section IV. REAR EQUALIZER BEAM AND AXLE
FIGURE 6-5. REAR EQUALIZER BEAM AND AXLE
Figure 6-6. Sleeve assembly (semitrailer No. 1 through 200 )
TABLE 6-2. REPAIR STANDARDS FOR REAR EQUALIZER BEAM AND AXLES
Section V. TORQUE ROD REPAIR
Section VII. BRAKE AIR CHAMBER REPAIR
Figure 6-10. Brake air chamber assembly
Disassembly - TM-9-2330-294-140215
Figure 6-11. Fail-safe chamber assembly
Assembly - TM-9-2330-294-140217
Figure 6-12. Fail-safe chamber cap assembly (semitrailer No. 1 throu 200 )
Section IX. WEDGE ASSEMBLY REPAIR
Figure 6-15. Wedge assembly roller removal or installation
Disassembly - TM-9-2330-294-140221
TABLE 6-3. REPAIR STANDARDS FOR WHEEL HUBS AND BEARINGS
Figure 6-17. Wheel hub and bearings measurement and inspection points
Section XI. WELD REPAIRS
FIGURE 6-18. FRAME ASSEMBLY STEEL GRADES
Frame Alinement
FIGURE 6-20. SEMITRAILER WELDED PARTS
Table 6-5.FILLER METAL REQUIREMENTS FOR M747 WELDED REPAIR PARTS
Suspension Components
Figure 6-21. Semitrailer frame and saddle bracket gusset reinforcement repair (semitrailer No. 1 through 200 ) (sheet 1 of 2)
Figure 6-21. Semitrailer frame and saddle bracket gusset reinforcement repair (semitrailer No. 1 through 200 ) (sheet 2 of 2).
Section XII. MlNOR ALTERATIONS
Items Required to Use Davit Adapter
Figure 6-23. Fabrication of adapter (Semitrailer No. 201 and on)
OFigure 6-24. Location of adapter (Semitrailer No. 201 and on)
APPENDIX A REFERENCES - TM-9-2330-294-140237
Section I. INTRODUCTION - TM-9-2330-294-140239
Section Il. BASIC ISSUE ITEMS LIST
Figure B-1. Basic issue items - TM-9-2330-294-140241
Figure B-2. Basic issue items - TM-9-2330-294-140242
Section Ill. ITEMS TROOP INSTALLED OR AUTHORIZED LIST
Section I. INTRODUCTION - TM-9-2330-294-140245
Section II. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140246
Section II. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140247
Section Il. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140248
Section Ill. TOOL AND TEST EQUIPMENT REQUIREMENTS - TM-9-2330-294-140249
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube Assemblies -CONTINUED - TM-9-2330-294-140252
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube Assemblies -CONTINUED - TM-9-2330-294-140253
Figure D-1. Tube assembly fabrication details
Figure D-2. Tube assembly fabrication details.
Figure D-3. Tube assembly fabrication details
Figure D-4. Tube assembly fabrication details
Figure D-5. Tube assembly fabrication details
Figure D-6. Tube assembly fabrication details
Figure D-7. Tube assembly fabrication details
Figure D-8. Tube assembly fabrication details
Figure D-9. Tube assembly fabrication details
Figure D-10. Tube assembly fabrication details
Figure D-11. Tube assembly fabrication details
Figure D-12. Tube assembly fabrication details
Figure D-13. Tube assembly fabrication details
Figure D-14. Tube assembly fabrication details
Figure D-15. Tube assembly fabrication details
Figure D-16. Tube assembly fabrication detail
Figure D-17. Tube assembly fabrication details
Figure D-18. Tube assembly fabrication details
Figure D-19. Tube assembly fabrication details
Figure D-20 Tube assembly fabrication detail
Figure E-1. Bench testing the emergency relay valve
Figure E-2. Bench testing the air suspension air control valve
Figure E-3. Bench testing the air suspension pressure regulator valves
Figure E-4. Bench testing the auxiliary air supply valve
Figure E-5. Bench testing the low-pressure warning swItch
Figure E-6. Bench testing the manual shutoff valve
Figure E-7. Bench testing the one-way check value
Figure E-8. Bench testing the one-way check valve
TM-9-2330-294-14 Semitrailer Low Bed Heavy Equipment Transporter 60 Ton M747 (NSN 2330-00-089-7265) Manual
Figure 1-2. Semitrailer, low-bed, heavy-equipment transporter, 60-ton, M747 (right rear view )
FIGURE 1-3. Air suspension system.
RESERVOIR AIR LINE
Suspension control instruction plate
Figure 1-4. Data and identification plates
Tabulated Data - TM-9-2330-294-140015
Table 1-1. Expendable and Consumable Operating Supplies
CHAPTER 2 OPERATING NSTRUCTIONS
Figure 2-1. Controls and components location
Service Brakes - TM-9-2330-294-140019
Figure 2-2. Fail-safe chamber assembly
Figure 2-3. Brake release controls and tank air fill
Figure 2-4. Intervehicular connections and circuit breakers
Figure 2-5. Rear electrical components
Figure 2-6. Retractable clearance light assembly (semitrailer No. 1 through 200 )
Figure 2-7. Retractable clearance light assembly (semitrailer No. 201 and on )
Figure 2-8. Air suspension controls and air supply value
Auxiliary Air Supply Valve
Figure 2-9. Air reservoir drain cock
Figure 2-10. Landing gear assembly
Figure 2-11. Loading ramp and tie-down assembly
Figure 2-12. Lateral positioning or removal of ramps
Jacking Pads
Figure 2-13. M747 Curbing instrsuctions
Figure 2-14. Snatch block assembly
Figure 2-15 Semitrailer winching components and tiedown brackets
Figure 2-16. Using blocks on semitrailer
Precautions
Loading and Unloading M747 Semitrailer Using Self-Powered Payload Vehicle
Drive-On Loading
Figure 2-17. Winching a vehicle on M747 semitrailer
SECURING PAYLOAD VEHICLE TO SEMI TRAILER
Figure 2-18. Payload vehicle secured to semitrailer
Securing Payload With Tracks
Figure 2-19. Rigging tractor left winch cable for winching payload vehicle off semitrailer
Figure 2-20. Rigging to winch ON and OFF different payload weights (Sheet 1 of 2 )
Figure 2-20. Rigging to winch ON and OFF different payload weights (Sheet 2 of 2 )
Figure 2-21. Loading two M113 (or M114) vehicles
Loading and Unloading Non-Operating Payload Vehicle
Checking and Adjusting Suspension Air Pressure
Changing Wheel and Tire Assembly
Figure 2-22. Wheel nut tightening sequence
Section II. OPERATION UNDER UNUSUAL CONDITIONS - TM-9-2330-294-140052
Fording Operations - TM-9-2330-294-140053
CHAPTER 3 OPERATOR / CREW MAINTENANCE INSTRUCTIONS
LUBRICATION CHART - TM-9-2330-294-140056
LUBRICATION CHART -CONT. - TM-9-2330-294-140057
Figure 3-3. Lubrication points--localized views
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES - TM-9-2330-294-140059
Table 3-1. Operator Preventive Maintenance Checks and Services
AIR SUSPENSION SYSTEM - TM-9-2330-294-140061
AIR TANKS - TM-9-2330-294-140062
Section III. TROUBLESHOOTING - TM-9-2330-294-140064
Table 3-3. Troubleshooting Air System
SUSPENSION AIR SYSTEM - TM-9-2330-294-140066
Section I. SERVICE UPON RECEIPT OF MATERIAL - TM-9-2330-294-140067
Figure 4-1. Special Tools
Table 4-1. Special Tools and Equipment - TM-9-2330-294-140069
Figure 4-2. Coating of walk way surfaces
Figure 4-3. Stenciling the M747 semitrailer
Section IV. PREVENTIVE MAINTENANCE CHECK AND SERVICES (QUARTERLY)
Table 4-2. Preventive Maintenance Checks and Services (Quarterly)
Table 4-3. Troubleshooting Semitrailer
SUSPENSION SYSTEM - TM-9-2330-294-140075
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140076
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140077
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140078
SUSPENSION SYSTEM -CONT. - TM-9-2330-294-140079
SUSPENSION AIR SYSTEM - TM-9-2330-294-140080
Section V. TROUBLESHOOTING - TM-9-2330-294-140081
Section VI. ELECTRICAL SYSTEM MAINTENANCE - TM-9-2330-294-140082
FIGURE 4-4. WIRING SCHEMATIC DIAGRAM ( SEMITRAILER NO. 1 THROUGH 200 )
FIGURE 4-4. WIRING SCHEMATIC DIAGRAM ( SEMITRAILER NO.201 AND ON )
Circuit Breaker Replacement - TM-9-2330-294-140085
Figure 4-6. Intervehicular receptacle cover and circuit breaker
Figure 4-7. Utility outlet
Figure 4-8. Composite stoplight-taillight
Figure 4-9. Composite stoplight- taillight exploded view
Figure 4-10. Retractable clearance light housing assembly (semitrailer No. 1 through 200 )
Figure 4-11. Retractable clearance light housing assembly (semitrailer No. 201 and on )
Figure 4-12. Retractable clearance light housing assembly (semitrailer No. 1 through 200 )
Figure 4-13. Retractable clearance light housing assembly (semitrailer No. 301 and on )
Figure 4-14. Clearance marker lightexploded view
Figure 4-15. Clearance marker light wiring harness (semitrailer No. 1 through 200 )
Frame Bracket Assembly Replacement or Repair
Figure 4-18. Stationary clearance light assembly (semitrailer No. 1 through 200 )
Stationary Clearance Light Assembly Repair
FIGURE 4- 20. MAIN WIRING HARNESS ( SEMITRAILER NO. 1 THROUGH 200 )
FIGURE 4- 21. MAIN WIRING HARNESS ( SEMITRAILER NO.201 AND ON )
Figure 4-22. Low-air-pressure warning switch
Section VII. BRAKE MAINTENANCE
Figure 4-23. Service brake schematic diagram
Figure 4-24. Service brake lining adjustment
Figure 4-25. Fail-safe chamber assembly schematic diagram (semitrailer No. 1 through 200 )
Figure 4-26. Fail-safe chamber assembly schematic diagmm (semitrailer No. 201 and on )
FIGURE 4 -27. AIR BRAKE SYSTEM SCHEMATIC DIAGRAM (SEMITRAILER NO. 1 THROUGH 200 )
Fail-Safe Unit Manual Compression and Release
FIGURE 4 -28. AIR BRAKE SYSTEM SCHEMATIC DIAGRAM (SEMITRAILER NO.201 AND ON )
Figure 4-29. Brake shoe removal or installation
FIGURE 4-29. Upper brake shoe installation
Figure 4-30. Plunger and brake shoe position
Figure 4-31. Fail-safe housing assembly
Figure 4-32. Dust shield
Figure 4-33. Air chamber assembly removal or installation
Figure 4-34. Wedge assembly removal or installation
Figure 4-35. Plunger housing assembly
Figure 4-37. Plunger housing assembly (semitrailer No. 201 and on.)
Figure 4-38. Seal assembly installation onto anchor plunger
Figure 4-39. Seating plunger seal assembly in plunger housing
Section VIII. AIR SYSTEM MAINTENANCE
Air Tank Leakage Test
Leakage test - TM-9-2330-294-140125
Two-Way Check Value Operation and Test
Repressurizing Air System
Figure 4-41. Air suspension system lines and fittings (semitrailer No. 1 through 200 )
Figure 4-41. Air suspension system lines and fittings (semitrailer No. 1 through 200 ) -CONT.
Figure 4-42. Air suspension system tube clamps (semitrailer No. 1 through 200 )
Figure 4-43. Air brake system lines and fittings (Semitrailer No. 1 through 200 ) (sheet 1 of 2 )
Figure 4-43. Air brake system lines and fittings (semitrailer No. 1 through 200 ) (sheet 2 of 2 )
Figure 4-44. Air brake system tube clamps (semitrailer No. 1 through 200 )
Nylon Tubing and Fittings
Figure 4-45. Air suspension system lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-45. Air suspension system lines, clamps and fittings (semitrailer No. 201 and on ) -CONT.
Figure 4-46. Air brake system lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-47. Fail-safe and air reservoir lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-48. Air brake system axle lines, clamps and fittings (semitrailer No. 201 and on )
Figure 4-49. Intervehicular coupling half
Figure 4-50. Hose assemblies and attaching parts (semitrailer No. 1 through 200 )
Figure 4-51. Hose assemblies and attaching parts (semitrailer No. 201 and on )
Figure 4-52. Front emergency relay valve
Figure 4-53. Rear emergency relay valve
Figure 4-54. Auxiliary air supply valve
FIGURE 4- 55. AIR RESERVOIRS ( SEMITRAILER NO. 1 THROUGH 200 )
Figure 4-56. Air reservoirs (semitrailer No. 201 and on )
Figure 4-57. Brake release valves and air reservoir fill valve
Figure 4-58. Air suspension control, regulator and shutoff valves.
Section IX. AIR SUSPENSION SYSTEM MAINTENANCE
Figure 4-59. Air suspension system schematic diagram(semitrailer No. 1 through 200)
Figure 4-59. Air suspension system schematic diagram(semitrailer No. 1 through 200) -CONT.
Figure 4-60. Air suspension system schematic diagram (semitrailer No. 201 and on )
Air Suspension Axle Lift Assembly
Figure 4-61. Axle lift components above frame
Air Suspension Spring Assembly
Figure 4-64. Shock absorber and axle stop chain (semitrailer No. 1 through 200 )
Figure 4-65. Shock absorber and axle stop chain (semitrailer No. 201 and on
Section X. WHEELS, TIRES, HUBS AND DRUMS MAINTENANCE
Figure 4-67. Breaking the tire bead
Figure 4-68. Using tire irons to lift first bead over rim
Figure 4-68. Using tire irons to lift first bead over rim -CONT.
Figure 4-69. Using tire irons and hammer to lift second bead over rim
Figure 4-70. Installation of tire on wheel fitting first bead over
Figure 4-70. Installation of tire on wheel fitting first bead over -CONT.
Figure 4-71. Installation of tire on wheel fitting second bead over rim
Hubs and Drums - TM-9-2330-294-140168
Figure 4-72. Hub and drum assembly
Figure 4-73. Hub and drum assembly disassembly or assembly
Figure 4-74. Wheel bearing cup installation
Figure 4-76. Wiper installation
Section XI. FRAME AND TOWING ATTACHMENT MAINTENANCE
Figure 4-78. Loading ramp
Figure 4-79. Snatch block, planks, spare wheel carrier and data plates
Landing Gear - TM-9-2330-294-140176
Figure 4-80. Landing gear
Section XII. STOWAGE PROVISIONS, WINCHING COMPONENTS AND ACCESSORY ITEMS MAINTENANCE
Roller Assemblies
Figure 4-82. Reflectors
Section XIII. DRAIN HOLES INSTALLATION, SNATCH BLOCK BRACKET
Section I. REPAIR PARTS, SPECIAL TOOLS AND EQUIPMENT - TM-9-2330-294-140183
Section II. TROUBLESHOOTING - TM-9-2330-294-140184
Specific Procedures - TM-9-2330-294-140185
Axle Alinement - TM-9-2330-294-140186
Figure 5-2. New semitrailer suspension alinement
Figure 5-3. Typical main wiring harness clamp installation
Air System Components
Figure 5-4. Front suspension assembly disconnect points
Figure 5-5. Front suspension systemexploded view
Figure 5-6. A lining beam center pin in saddle assembly
Rear Axle Equalizer Beam and Axle
Figure 5-7. Rear axle-equalizer beam assembly removal or installation
Figure 5-8. Rear axle-equalizer beam assembly-exploded view
Lower Axle Stop and Guide Pads
FIGURE 5-10. LOWER AXLE STOP AND GUIDE PADS (SEMITRAILER No. 201 AND ON.)
Torque Rod
Figure 5-11. Gooseneck and platform rollers
Swing-away Roller
Figure 5-12. Swing-away roller assembly
Reflectors - TM-9-2330-294-140202
CHAPTER 6 REPAIR INSTRUCTIONS - TM-9-2330-294-140203
Figure 6-1. Suspension equalizer beam
Figure 6-2. Front equalizer beam and axle measurement and inspection points
Figure 6-3. Equalizer beam center bushing installation
Figure 6-4. Dimensions for counterboring new ball and socket assembly
Section IV. REAR EQUALIZER BEAM AND AXLE
FIGURE 6-5. REAR EQUALIZER BEAM AND AXLE
Figure 6-6. Sleeve assembly (semitrailer No. 1 through 200 )
TABLE 6-2. REPAIR STANDARDS FOR REAR EQUALIZER BEAM AND AXLES
Section V. TORQUE ROD REPAIR
Section VII. BRAKE AIR CHAMBER REPAIR
Figure 6-10. Brake air chamber assembly
Disassembly - TM-9-2330-294-140215
Figure 6-11. Fail-safe chamber assembly
Assembly - TM-9-2330-294-140217
Figure 6-12. Fail-safe chamber cap assembly (semitrailer No. 1 throu 200 )
Section IX. WEDGE ASSEMBLY REPAIR
Figure 6-15. Wedge assembly roller removal or installation
Disassembly - TM-9-2330-294-140221
TABLE 6-3. REPAIR STANDARDS FOR WHEEL HUBS AND BEARINGS
Figure 6-17. Wheel hub and bearings measurement and inspection points
Section XI. WELD REPAIRS
FIGURE 6-18. FRAME ASSEMBLY STEEL GRADES
Frame Alinement
FIGURE 6-20. SEMITRAILER WELDED PARTS
Table 6-5.FILLER METAL REQUIREMENTS FOR M747 WELDED REPAIR PARTS
Suspension Components
Figure 6-21. Semitrailer frame and saddle bracket gusset reinforcement repair (semitrailer No. 1 through 200 ) (sheet 1 of 2)
Figure 6-21. Semitrailer frame and saddle bracket gusset reinforcement repair (semitrailer No. 1 through 200 ) (sheet 2 of 2).
Section XII. MlNOR ALTERATIONS
Items Required to Use Davit Adapter
Figure 6-23. Fabrication of adapter (Semitrailer No. 201 and on)
OFigure 6-24. Location of adapter (Semitrailer No. 201 and on)
APPENDIX A REFERENCES - TM-9-2330-294-140237
Section I. INTRODUCTION - TM-9-2330-294-140239
Section Il. BASIC ISSUE ITEMS LIST
Figure B-1. Basic issue items - TM-9-2330-294-140241
Figure B-2. Basic issue items - TM-9-2330-294-140242
Section Ill. ITEMS TROOP INSTALLED OR AUTHORIZED LIST
Section I. INTRODUCTION - TM-9-2330-294-140245
Section II. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140246
Section II. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140247
Section Il. MAINTENANCE ALLOCATION CHART - TM-9-2330-294-140248
Section Ill. TOOL AND TEST EQUIPMENT REQUIREMENTS - TM-9-2330-294-140249
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube Assemblies -CONTINUED - TM-9-2330-294-140252
Table D-1. Combined Part Number Index and Bill of Materials List for Copper Tube Assemblies -CONTINUED - TM-9-2330-294-140253
Figure D-1. Tube assembly fabrication details
Figure D-2. Tube assembly fabrication details.
Figure D-3. Tube assembly fabrication details
Figure D-4. Tube assembly fabrication details
Figure D-5. Tube assembly fabrication details
Figure D-6. Tube assembly fabrication details
Figure D-7. Tube assembly fabrication details
Figure D-8. Tube assembly fabrication details
Figure D-9. Tube assembly fabrication details
Figure D-10. Tube assembly fabrication details
Figure D-11. Tube assembly fabrication details
Figure D-12. Tube assembly fabrication details
Figure D-13. Tube assembly fabrication details
Figure D-14. Tube assembly fabrication details
Figure D-15. Tube assembly fabrication details
Figure D-16. Tube assembly fabrication detail
Figure D-17. Tube assembly fabrication details
Figure D-18. Tube assembly fabrication details
Figure D-19. Tube assembly fabrication details
Figure D-20 Tube assembly fabrication detail
Figure E-1. Bench testing the emergency relay valve
Figure E-2. Bench testing the air suspension air control valve
Figure E-3. Bench testing the air suspension pressure regulator valves
Figure E-4. Bench testing the auxiliary air supply valve
Figure E-5. Bench testing the low-pressure warning swItch
Figure E-6. Bench testing the manual shutoff valve
Figure E-7. Bench testing the one-way check value
Figure E-8. Bench testing the one-way check valve
TM-9-2330-294-14 Semitrailer Low Bed Heavy Equipment Transporter 60 Ton M747 (NSN 2330-00-089-7265) Manual
