TM-9-2320-366-20-5 MTV Unit Maintenance Manual M1083 Series - Volume 5 Download
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TM 9-2320-366-20-5 17-3. M1084/M1086 BOOM SHEAVE REPLACEMENT This task covers: a. Removal b. Installation c. Follow-On Maintenance INITIAL SETUP Equipment Conditions Hoist cable payed out approximately 10 feet (TM 9- 2320-366-10-1). Engine shut down (TM 9-2320-366-10-1). Tools and Special Tools Tool Kit, Genl Mech (Item 46, Appendix C) Gloves, Welders (Item 14, Appendix C) Materials/Parts Grease, Automotive and Artillery (GAA) (Item 22, Appendix D) Sealing Compound (Item 60, Appendix D) Washer, Key (Item 282, Appendix G) Personnel Required (2) a. Removal. (1) Remove grease fitting (1) from sheave pin (2). (2) Straighten tab on key washer (3) from detent in nut (4). (3) Remove nut (4), key washer (3), and sleeve bushing (5) from sheave pin (2). Discard key washer. (4) Remove screw (6) and washer (7) from lock pin (8). (5) Remove lock pin (8) from sheave pin (2). NOTE Boom sheave contains two roller bearing assemblies which may fall out. The aid of an assistant is required to support boom sheave during removal of sheave pin. (6) Remove sheave pin (2) and boom sheave (9) from boom (10) and cable (11). (7) Remove two roller bearing assemblies (12) from sheave pin (2). 17-4