REPAIR AFT ROTOR SHAFT

INSPECT FORWARD AND AFT ROTOR SHAFT (Continued)

TM-55-1520-240-23-5 CH-47D Heilcopter Manual
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TM 55-1520-240-23-5 6-59 REPAIR AFT ROTOR SHAFT 6-59 INITIAL SETUP Applicable Configurations: All Tools: Dial Indicating Depth Gage 643J Materials: Crocus Cloth (E122) Cloths (E120) Personnel Required: Medium Helicopter Repairer Inspector References: TM 1-1500-204-23 Equipment Condition: Off Helicopter Task Slider Shaft Removed (Task 6-53) 1. Remove nicks and scratches on rotor shaft with crocus cloth (E122). Observe the following limits on upper shaft (1) and lower shaft (2): NOTE Limits for center section of shaft are in step 3. a. Blending shall not be more than 0.040 inch deep. b. Blending shall clear fasteners by a distance at least equal to fastener diameter. c. Blending shall not extend into a radius. d. Blending shall not be done to splines (3 and 4). e. No blending is allowed on seal mating surface (5). 2. Remove corrosion on splines (3 and 4) (TM 1-1500-204-23). 6-227

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