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