TM-9-2320-366-34-4 MTV Direct Maintenance Manual M1083 Series - Volume 4 Download
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TM 9-2320-366-34-4 25-6. M1089 STIFFLEG CYLINDER REPAIR This task covers: a. Disassembly b. Cleaning/Inspection c. Assembly INITIAL SETUP Tools and Special Tools Tool Kit, Genl Mech (Item 78, Appendix B) Wrench Set, Socket (Item 84, Appendix B) Wrench, Torque, 0-200 lb-in. (Item 93, Appendix B) Wrench, Torque, 0-175 lb-ft (Item 92, Appendix B) Wrench, Torque, 0-600 lb-ft (Item 97, Appendix B) Wrench Set, Socket, (Item 85, Appendix B) Socket Set, Socket Wrench (TM 9-2320-366-20) Pan, Drain (Item 43, Appendix B) Vise, Machinists (Item 82, Appendix B) Tools and Special Tools (Cont) Caps, Vise Jaw (Item 12, Appendix B) Wrench, Spanner Tool (Item 20, Appendix D) Materials/Parts Kit, Seal (Item 125, Appendix F) Parts Kit, Seal (Item 320, Appendix F) Solvent, Dry Cleaning (Item 83, Appendix C) Lubricating Oil, Engine (Item 46, Appendix C) Rag, Wiping (Item 60, Appendix C) a. Disassembly. WARNING There may be excess hydraulic pressure in stiffleg cylinder. Loosen plugs slowly before removing. Failure to comply may result in serious injury to personnel. (1) Position stiffleg cylinder (1) in vise. (2) Place drain pan under stiffleg cylinder (1). (3) Remove four plugs (2) from stiffleg cylinder (1). (4) Remove four preformed packings (3) from plugs (2). Discard preformed packings. (5) Remove two counterbalance valves (4) from stiffleg cylinder (1). (6) Remove three preformed packings (5) and back-up rings (6) from two counterbalance valves (4). Discard preformed packings and back-up rings. 25-28