TM 9-2815-237-34 2-40.  FAN  DRIVE  REPAIR This  task  covers: a. Disassembly c.  Inspection b. Cleaning d. Assembly INITIAL  SETUP Tools General  mechanic’s  tool  kit: automotive (Appendix E, Item 1) Materials/Parts Locknut  (Appendix  D,  Item  24) Spring (Appendix D, Item 50) Two shaft O-rings (Appendix D, Items  32  or  33) Friction lining (Appendix D, Item 23) Cylinder O-ring (Appendix D, Item 30) Dust  seal  (Appendix  D,  Item  42) Lithium grease (Appendix B, Item 11) Manual  References TM 9-2815-237-34P Personnel  Required One mechanic One  assistant Equipment  Condition Engine  disassembled  into  subassemblies  (para.  2-15). General  Safety  Instructions l Use  eyeshields  when  cleaning  with  compressed  air. l Do not use compressed air to spin bearings. a. Disassembly 1. Remove six screws (8) and three retaining plates (9) from housing (5). 2. Remove friction lining (10) from housing (5). Discard friction lining (10). 3. Remove locknut (1) and tabwasher (2) securing shaft assembly (11) and cylinder assembly (3) to  housing  (5).  Discard  locknut  (1). 4.  Remove  cylinder  assembly  (3)  from  front  of  housing  (5). 5.  Remove  O-ring  (4)  from  inside  cylinder  assembly  (3).  Discard  O-ring  (4). 6. Remove shaft assembly (11) and spring (6) from housing (5). Discard spring (6). 7. Remove two O-rings (7) from shaft assembly (11). Discard O-rings (7)- 2-148