TM  10-3930-643-34 HYDRAULIC SYSTEM TROUBLESHOOTING  AND  MAINTENANCE. 12-10. Boom Assembly. (Sheet 1 of 11) This task covers: a.  Removal b. Disassembly c. Cleaning/Inspection   d. Assembly e. Installation INITIAL  SETUP Tools Tool Kit,  General   Mechanic’s Automotive NSN 5180-00-177-7033 Shop  Equipment,  Automotive Maintenance  and  Repair: Field  Maintenance,  Basic, Less  Power NSN 4910-00-754-0705 Shop  Equipment,  Automotive Maintenance  and  Repair: Field   Maintenance NSN 4910-00-919-0076 Hoist and sling, capacity of 2100  lbs. Materials/Parts Cleaning  solvent  P-D-680 (App. C, Item 5) Clean cloth (App. C, Item 24) Small tag (App. C, Item  28) Detergent (App. C, Item 33) Seal  (16) Cotter pin Torques Except for special torques shown, all fasteners are tightened to a standard  torque. Refer to Appendix E. EQUIPMENT  CONDITION References Condition  Description TM  10-3930-643-20 Front work light, headlight and blackout light  assemblies  removed. Front fenders removed. Paragraph  12-11 Vehicle  carriage  assembly  removed. REMOVAL 1. Using a hydraulic jack, raise vehicle and place two jack stands under rear of vehicle to prevent vehicle from tipping  when boom assembly is removed. Go to sheet 2 12-75