Numa Patriot 45, Уход и обслуживание

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10/03/16 Page 7
Patriot
®
45
PIN
• Inspect pin for scoring or cracks.
•
Replace if necessary.
SNAP RING
•
Inspect the snap ring for severe wear indications.
•
Remove or round over any sharp edges.
• Replace if necessary.
PISTON
•
Inspect the striking face, inside and outside diameters for nicks, scoring and cracks.
•
Polish the piston with emery cloth to remove all minor irregularities, cracked pistons
should be replaced.
•
Wash the piston thoroughly, inside and out, to remove all emery dust.
CASE
•
Inspect the outside diameter for excessive wear or cracks. Inspect the internal case
bore for scoring.
•
Remove all minor irregularities with fine honing stones.
•
Clearance between the piston and the case should not exceed 0.0085" (0.21 mm)
across the diameter.
•
Select the larger diameter end of case to be the chuck end. Replace if the outside
diameter is worn to 3-11/16" (94 mm) or less near the chuck end.
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 0.010" (0.25 mm).
•
Replace if necessary.