TM 10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 12-17. Oscillation Cylinder (S/N 2000 and below). (Sheet 1 of 8) This task covers: a. Removal b. Disassembly c. Cleaning/Inspection   d. Assembly e. Installation f. Testing 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 Materials/Parts Cleaning  solvent  P-D-680 (App. C, Item 5) Clean cloth (App. C, Item 24) Small tag (App. C, Item 28) Hydraulic fluid (App. C, Item 19) Multi-purpose  grease (App. C, Item 12) Seal  (4) Ring (4) Preformed  packing  (4) Wiper Bearing Retainer  bearing Hoist and sling Torques Except for special torques shown, all fasteners are tightened to a standard  torque. Refer to Appendix E. EQUIPMENT  CONDITION References Condition   Description TM  10-3930-643-10 Hydraulic  pressure  vented. GO to sheet 2 12-152