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INSTALL ROTARY-WING HEAD TIE-BAR ASSEMBLY     (Continued) - TM-55-1520-240-23-4_145
REMOVE  PITCH  HOUSING  SEALS

TM-55-1520-240-23-4 CH-47D Heilcopter Manual
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TM 55-1520-240-23-4 5-23.2 INSTALL ROTARY-WING HEAD TIE-BAR ASSEMBLY     (Continued) 5-23.2 CAUTION Do not install wrong balance weights on a pitch housing.  Use of wrong balance weights will cause head to be unbalanced. 18. Remove tag from three weights (25, 26, and 27). Install weights, washer (28), and nut (29) on bolt (23).  Torque nut to  35 inch-pounds. NOTE Color of tape on housing must be same as color marked on tag. 19. Install packing (30) on plug (31). 20. Install plug (31) in housing (15).  Torque plug to  24 inch-pounds.  Lockwire (E231) plug to housing. 21. Service pitch bearing oil tank (32) (Task 1-56). 22. Install packing (33) on plug (34). 23. Install plug (34) in tank (32).  Torque plug to 24 inch-pounds.  Lockwire plug to tank.  Use lockwire (E231). INSPECT FOLLOW-ON MAINTENANCE: Pressure test rotary-wing head (Task 5-5). Install rotary-wing blade (Task 5-84). Close work platform (Task 2-2). Remove tiedown lines from aft and forward blades (Task 1-26). Install hub oil tank (Task 5-17). END OF TASK 5-128







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