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CHECK DRIVE COLLAR AND DRIVE ARM RADIAL PLAY     (Continued) - TM-55-1520-240-23-4_628
REMOVE DRIVE COLLAR

TM-55-1520-240-23-4 CH-47D Heilcopter Manual
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TM 55-1520-240-23-4 5-99.2 CHECK DRIVE COLLAR AND DRIVE ARM RADIAL PLAY     (Continued) 5-99.2 CAUTION Do not allow swashplate to rotate. Rotor head, pitch links, and swash plate will be damaged. 27. Clamp indicator (1) to swashplate (10). 28. Position indicator (1) on lower end of lower drive arm (5), align with lower drive arm.  Preload indicator against lower drive arm. 29. Push lower drive arm (5) toward indicator (1). Record indicator reading C. 30. Hold swashplate (10) down and pull lower drive arm (5) away from indicator (1). Record indicator reading D. 31. Subtract reading D from reading C. Result shall not be more than  0.006 inch. 32. Remove indicator (1) from swashplate (10). 33. Position lower drive arm (5) in upper drive arm (4). 34. Check that flanged sleeve bushing is installed under drive arm lug on nut side.  Refer to Task 5-112. WARNING Antiseize compound (E75) can form toxic vapors if exposed to flame.  Use only with adequate ventilation, away from open flame.  In case of contact, immediately flush skin or eyes with water for at least  15 minutes.  Get medical attention for eyes. CAUTION Do not apply antiseize compound to thread of bolt. 35. Apply antiseize compound (E75) to bushing and shank of bolt (9).  Wear gloves (E184.1). 36. Install bolt (9), washer (7.1), and nut (8) in lower drive arm (5).  Torque nut to  480-900 inch-pounds.   Use additional washers as required for cotter pin hole alignment. 37. Install cotter pin (7) in nut (8). INSPECT FOLLOW-ON MAINTENANCE: Remove pitch link lockpins (Task 5-96.2). Connect pitch links to swashplate (Task 5-99). Close forward or aft work platforms (Task 2-2). END OF TASK Change 2 5-609







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