Page 10
04/21/20
Champion
®
RC300
BIT BEARING
•
Inspect the inside and outside for nicks and burrs.
•
Remove all internal irregularities with a fine honing stone.
•
Remove all external irregularities with an emery cloth.
•
Clearance between the bit shank and bit bearing should not exceed 0.048" (1.21 mm).
•
Replace if necessary.
SNAP RING
•
Inspect the snap ring for severe wear indicators. Replace if necessary.
BIT RETAINING RINGS
•
Inspect for cracks or deformations.
•
Remove all irregularities with a file or emery cloth.
•
Replace if necessary.
THRUST WASHERS
•
Inspect for damage such as cracks and deformations. Replace if necessary.
CHUCK
•
Inspect for cracks and burrs.
•
For continued use, the outside diameter should be larger than the outside of the case
or the same. Collar length should not be less than 6.750" (172 mm).
CAUTION
IF THE COLLAR LENGTH IS LESS THAN 6.750" (172 MM) AND THE BIT IS
UNDER LOAD CONDITIONS, CONTACT BETWEEN THE SHOULDER OF
THE BIT RETAINING RINGS AND THE BOTTOM OF THE BIT RETAINING
RING AREA ON THE BIT, COULD CAUSE THE BIT TO FAIL IN THIS AREA.
•
Torsional play in the splines should not exceed 0.375" (9.5 mm).
•
Replace if necessary.
Summary of Contents for Champion RC300
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