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INSPECT SHOCK ABSORBER WITH ELASTOMERIC BEARINGS     (Continued) - TM-55-1520-240-23-4_549
INSPECT SHOCK ABSORBER WITH ELASTOMERIC  BEARINGS (Continued)

TM-55-1520-240-23-4 CH-47D Heilcopter Manual
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TM 55-1520-240-23-4 5-87.2 INSPECT SHOCK ABSORBER WITH ELASTOMERIC BEARINGS     (Continued) 5-87.2 8. With shock absorber rod end (4) free of bracket (6), check bolt (3) for wear.  Bolt shank (7) shall be smooth with no wear.  Measure diameter of bushing at several places.  Use a micrometer. Minimum diameter of bushing shall be  1.090 inch. 9. Install bolt (3) in bracket (6).  Position indicator plunger (13) against bolt shank (7).  Align with bolt axis.  Use plunger with flat end (14). 10. Check bolt (3) movement.  Attempt to move bolt toward, then away from plunger (13).  Movement shall not be more than  0.0015 inch. 11. Replace bolt (3) and/or bushings in bracket (6) if excessive play is detected, and reinstall shock absorber. 12. Disconnect shock absorber (5) at inboard bracket (16) (Task 5-87). It may be helpful to have helper push on trailing edge of blade to help extract shock absorber (5) from bracket (16). 13. Inspect the elastomeric bearing (18) and reject it if any of the following conditions exist: a. Evidence of shim displacement on distortion (19) with raising of elastomer (20). b. Permanent offset (21) of inner bushing. c. Loss of elastomer material exceeding  20 percent of the bearing thickness. d. Separation of inner race and elastomeric (inner race turns by hand with elastomeric). 5-530







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