Numa Patriot 45, Уход и обслуживание

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Page 8
10/03/16
Patriot
®
45
BIT RETAINING RINGS
•
Inspect for cracks or deformations.
• Remove all irregularities with a file or emery cloth.
•
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 1.935" (49 mm).
CAUTION
IF THE COLLAR LENGTH IS LESS THAN 1.935" (49 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 0.125" (3.2 mm) measured at bit spline
OD.
•
Replace if necessary.
O-RINGS
•
Inspect for damage such as cracks and deformations.
•
Replace if necessary.
GENERAL ASSEMBLY INSTRUCTIONS
• Assembly should be performed in a clean environment.
•
All parts should be cleaned thoroughly and wiped dry before assembly.
• Oil all parts by hand using Rock Drill Oil to insure easy assembly.
•
Coat all thread connections with a thread compound to allow joints to thread easily.