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Page Title: DISASSEMBLY
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TM 5-2420-222-34 14-21. BACKHOE BUCKET CYLINDER ASSEMBLY REPAIR. 3. Remove  two  return  tubes  (2)  and  preformed  packings  (1)  from  actuating  cylinder  (10).    Discard  preformed packings. 4. Place actuating cylinder (10) in vise with caps. 5. Remove setscrew (9) from actuating cylinder (10). 6. Using  spanner  wrench,  loosen  linear  actuating  cap  (22)  from  actuating  cylinder  (10).    Slide  linear  actuating  cap back onto piston rod (20). NOTE Use a drain pan to catch fluid when draining actuating cylinder.  Clean up all spills. 7. Loosen vise and tilt actuating cylinder (10) to drain hydraulic fluid. 8. Tighten vise.  With the aid of an assistant, remove piston rod (20) with assembled parts from actuating cylinder (10). 9. Remove actuating cylinder (10) from vise. 10. Place piston rod (20) in vise with caps.  Remove self-locking nut (12) from piston rod.  Discard self-locking nut. 11. Tap piston (17) with assembled parts loose and remove from piston rod (20).  Remove piston rod from vise. 12. Remove linear actuating cap (22) with assembled parts from piston rod (20). 13. Remove piston ring (13), piston ring  (14),  packing  assembly  (15),  and  preformed  packing  (16)  from  piston  (17). Discard piston rings and preformed packing. 14. Using retaining ring pliers, remove retaining ring (27) from linear actuating cap (22). 15. Remove V-packing (26), preformed packing (25), preformed packing or packing retainer (24), wear ring (23), and wiper  seal  (21)  from  linear  actuating  cap  (22).    Discard  V-packing,  preformed  packings,  packing  retainer,  wear ring, and wiper seal. TA701616 14-100

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