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INSTALL ROTARY-WING HEAD TIE-BAR ASSEMBLY     (Continued) - TM-55-1520-240-23-4_144
INSTALL ROTARY-WING HEAD TIE-BAR ASSEMBLY     (Continued) - TM-55-1520-240-23-4_146

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 Avoid handling pitch-varying shaft. Fingerprints can cause corrosion on bearing surfaces. 9. Check rollers (14) are in position in housing (15). Apply thin coat of grease (E190) to hold rollers in place, if needed.  Use gloves (E186). 10. Apply light coat of oil (E254 or E254.1) to outer surface of shaft (2).  Wear gloves (E186). 11. Clean sealant from two holes (16) of housing (15).  Use solvent (E244) and cloths (E120). Wear gloves (E186). CAUTION Do not allow seals to contact tie-bar during pitch housing installation. Sharp edges of tie-bar can damage seals. 12. Slide housing (15) onto shaft (2) and tie-bar (1), pitch arm (17) to right looking inboard.  Guide seal (18) onto wear sleeve (19).  Seal shall not be folded. INSPECT 13. Align hole (20) in tie-bar (1) with hole (16) in housing (15). 14. Apply light coat of compound (E75) to pin (21). Wear gloves (E186). 15. Install pin (21) in housing (15).  Tap to seat pin. Use phenolic drift. 16. Install washer (22 and 22.1), bolt (23), and nut (24) in housing (15).   Torque nut to  35 inch-pounds. 17. Apply sealant (E336) to washer (22) and housing (15).  Wear gloves (E186). 17.1.     Check weight cavity drain hole in pitch-varying housing to ensure it is clean of debris.  Use pipe cleaner (E469). Change 2 5-127







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