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4.3
ANNUAL MAINTENANCE
1.
Check that the drill bushing, latch, and roll pins are in good working order. If the shaft of a new drill can be turned
more than 20º in the drill bushing, or if the drill collar is cracked, the drill bushing must be replaced. A worn drill
bushing causes increased breaker noise and, in the long run, damage to the striking piston of the Rock Drill.
2.
Check the function and performance of the Rock Drill.
3.
It is recommended that the Rock Drill be serviced at an authorized RGC service center where:
a.
the accumulator is inspected and recharged.
b.
moving parts, drill bushing, and bolts for example, are inspected and, if required, replaced.
c.
all seals are replaced.
4.4
LONG-TERM STORAGE
During long-term storage, the striking piston must be protected against corrosion. Connect the quick-release couplings
together and press the striking piston to its upper position with a clean object placed down through the drill bushing.
