Recovery & Battle Damage Assessment & Repair

 

Publication Title:                   Recovery & Battle Damage Assessment & Repair
Publication/revision date:    19 SEP 2006
Field Manual:                        FM 4-30.31
                                               MCRP 4-11.4A
   Supersedes:                      FM 9-43.2, FMFRP 4-34, TO 36-1-181, 03 OCT 1995
Distribution Restriction:       Approved for public release, distribution unlimited (public domain manuals)

Contents:
Preface...................................................................................................................v
Chapter 1 Introduction to Recovery and Battle Damage Assessment and Repair ..... 1-1
Recovery ............................................................................................................ 1-1
Battle Damage Assessment and Repair ............................................................ 1-2
Chapter 2 Principles of Recovery..................................................................................... 2-1
General............................................................................................................... 2-1
Fundamental Methods of Recovery ................................................................... 2-1
Chapter 3 Rigging .............................................................................................................. 3-1
Rigging Fundamentals ....................................................................................... 3-1
Mechanical Advantage of Tackle ....................................................................... 3-2
Anchors .............................................................................................................. 3-9
Chapter 4 Recovery Operations ....................................................................................... 4-1
Safety Precautions ............................................................................................. 4-1
Recovery Procedures......................................................................................... 4-5
Special Recovery Situations............................................................................. 4-19
Self-Recovery and Like-Vehicle Recovery....................................................... 4-23
Chapter 5 Field Expedient Recovery................................................................................ 5-1
Recovery Expedients.......................................................................................... 5-1
Remobilizing Tracked Vehicles .......................................................................... 5-4
Chapter 6 Battle Damage Assessment and Repair Procedures ................................... 6-1
BDAR Principles ................................................................................................. 6-1
Basic Rules of Assessment................................................................................ 6-2
BDA Guidelines .................................................................................................. 6-4
Maintenance Procedures and BDAR..................................................................6-6
Special Operating Environments ........................................................................6-9
BDAR in Joint Operations.................................................................................6-10
BDAR Tools and Equipment.............................................................................6-10
Expedient Repairs.............................................................................................6-18
Appendix A Battle Damage Assessment and Repair Kits ................................................ A-1
Appendix B Combined and Multinational Recovery and BDAR Operations .................. B-1
Appendix C Hand and Arm Signals..................................................................................... C-1
Appendix D Recovery Guidelines for Operators/Leaders ................................................ D-1
GLOSSARY.......................................................................................... Glossary-1
REFERENCES.................................................................................. References-1
INDEX ......................................................................................................... Index-1
Figures
Figure 2-1. Block components ............................................................................................... 2-3
Figure 2-2. Block configurations ............................................................................................ 2-4
Figure 2-3. Block classifications ............................................................................................ 2-4
Figure 2-4. Grade resistance ................................................................................................. 2-5
Figure 2-5. Overturning resistance ........................................................................................ 2-6
Figure 2-6. Mire resistance .................................................................................................... 2-6
Figure 2-7. First-class lever ................................................................................................. 2-11
Figure 2-8. Second-class lever ............................................................................................ 2-11
Figure 2-9. Compound tackle system .................................................................................. 2-12
Figure 3-1. Terminology of simple tackle............................................................................... 3-1
Figure 3-2. Fleet angle........................................................................................................... 3-2
Figure 3-3. Winch line(s) MA ................................................................................................. 3-3
Figure 3-4. 4-to-1 MA............................................................................................................. 3-5
Figure 3-5. Backup method of rigging.................................................................................... 3-6
Figure 3-6. Lead method of rigging........................................................................................ 3-6
Figure 3-7. Sling arrangement ............................................................................................... 3-7
Figure 3-8. Floating block attachment ................................................................................... 3-8
Figure 3-9. Tow cable attachment ......................................................................................... 3-8
Figure 3-10. Tow bar method................................................................................................. 3-9
Figure 3-11. 3-to-1 MA towing method .................................................................................. 3-9
Figure 3-12. Anchor symbol................................................................................................... 3-9
Figure 3-13. Log deadman................................................................................................... 3-10
Figure 3-14. Combination picket holdfast ............................................................................ 3-11
Figure 3-15. Sand parachute ............................................................................................... 3-12
Figure 3-16. Scotch anchor.................................................................................................. 3-12
Figure 4-1. Unsafe areas during an angle pull .......................................................................4-2
Figure 4-2. Hook positions .....................................................................................................4-3
Figure 4-3. Chocking/blocking wheeled vehicles ...................................................................4-4
Figure 4-4. Safety keys and shackle pins ..............................................................................4-5
Figure 4-5. Winching using a 2-to-1 MA and a change of direction block .............................4-7
Figure 4-6. Highway towing....................................................................................................4-8
Figure 4-7. Cross-country towing ...........................................................................................4-8
Figure 4-8. Winching with two recovery vehicles ...................................................................4-9
Figure 4-9. 2-to-1 MA ...........................................................................................................4-10
Figure 4-10. Tracked towing with holdback vehicle .............................................................4-11
Figure 4-11. Tracked towing.................................................................................................4-12
Figure 4-12. Chocking/blocking tracked vehicles.................................................................4-13
Figure 4-13. Classifying a grade ..........................................................................................4-14
Figure 4-14. Surveying level.................................................................................................4-14
Figure 4-15. Eyesight and pace method ..............................................................................4-15
Figure 4-16. Fifth wheel towing device.................................................................................4-16
Figure 4-17. Recovery with AKERR.....................................................................................4-19
Figure 4-18. Recovery of a nosed cargo truck .....................................................................4-20
Figure 4-19. Recovery of overturned vehicles .....................................................................4-20
Figure 4-20. A recovery vehicle winching a nosed tracked vehicle .....................................4-23
Figure 4-21. Lifting operation ...............................................................................................4-23
Figure 4-22. Recovering a mired cargo truck in tandem......................................................4-24
Figure 4-23. Winching with like or heavier class wheeled vehicle .......................................4-25
Figure 4-24. Self-recovery operation....................................................................................4-25
Figure 4-25. Recovery of a mired tank using one like vehicle .............................................4-26
Figure 4-26. Recovering a nosed tracked vehicle with like vehicles....................................4-26
Figure 4-27. Recovering an overturned tracked vehicle with like vehicles ..........................4-27
Figure 4-28. Towing a disabled tracked vehicle...................................................................4-27
Figure 4-29. Towing with vehicles issued one tow cable .....................................................4-28
Figure 4-30. Marine recovery with tow hooks and ropes attached to lifting eyes ................4-29
Figure 4-31. Recovery to shore with tow hooks and cables attached to tow lugs ...............4-29
Figure 5-1. Pry bar recovery...................................................................................................5-1
Figure 5-2. Substitute jack (front wheels)...............................................................................5-2
Figure 5-3. Substitute jack (rear or tandem wheels) ..............................................................5-2
Figure 5-4. Wheels used as winches .....................................................................................5-3
Figure 5-5. Girth hitch and using an A-frame in recovery operations ....................................5-3
Figure 5-6. A log used to anchor tracks .................................................................................5-4
Figure 5-7. Cables used to anchor tracks ..............................................................................5-5
Figure 5-8. Moving a vehicle with both tracks broken............................................................5-5
Figure 5-9. Moving a vehicle onto a track ..............................................................................5-6
Figure 5-10. Installing a track .................................................................................................5-6
Figure 6-1. BDA guidelines .................................................................................................... 6-5
Figure 6-2. Example of a DD Form 1577............................................................................... 6-7
Figure 6-3. Example of a DA Form 2404 ............................................................................... 6-8
Figure 6-4. Example of a ULLS-generated DA Form 5988-E................................................ 6-9
Figure 6-5. Hull and metal component repair materials....................................................... 6-11
Figure 6-6. Fluid line repair items ........................................................................................ 6-11
Figure 6-7. Low-pressure line fitting repair .......................................................................... 6-13
Figure 6-8. Low-pressure line repair.................................................................................... 6-14
Figure 6-9. Electrical repair materials .................................................................................. 6-15
Figure 6-10. Tire patch materials and tire plug kit ............................................................... 6-16
Figure 6-11. Environmental plugs, radiator sealant, and a link belt .................................... 6-16
Figure 6-12. Tube-type radiator core repair......................................................................... 6-17
Figure 6-13. Attaching tandem axle to frame....................................................................... 6-18
Figure 6-14. Defective differential ........................................................................................ 6-19
Figure 6-15. Suspending road wheel................................................................................... 6-20
Figure 6-16. Road wheel expedient technique .................................................................... 6-20
Figure 6-17. Short track expedient technique...................................................................... 6-21
Figure 6-18. Shear pin substitute......................................................................................... 6-22
Figure A-1. Crew/operator BDAR kit...................................................................................... A-2
Figure A-2. Maintainer’s BDAR kit ......................................................................................... A-2
Figure C-1. Signals for raise the hoist cable and lower the hoist cable.................................C-2
Figure C-2. Signals for raise the boom and lower the boom .................................................C-2
Figure C-3. Signals for raise the spade and lower the spade ...............................................C-3
Figure C-4. Signals for inhaul the main winch cable and pay out the winch cable ...............C-3
Figure C-5. Signals for extend the boom and retract the boom.............................................C-4
Figure C-6. Signals for swing the boom right or left and button up-unbutton........................C-4
Figure C-7. Signal for stop .....................................................................................................C-5
Tables
Table 2-1. Estimated winch variable capacity........................................................................ 2-9
Table 4-1. Prime movers for FWTD..................................................................................... 4-17
Table 4-2. Vehicle weights................................................................................................... 4-18

 

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