Hydraulic Rock Drill COP RR14 / SC14 Ver. C 10 Front Head
50 No: 4124851851.2.9007203379904011 en-US
a.
The wear surface is worn more than 1 mm.
b.
The wear surface is uneven.
c.
Cracks are found.
6.
Lock inside the gear housing and inspect the splines on the driver (212), rotation
chuck bushing (206), and impact piston (305). If parts look damaged or worn, send
the rock drill for overhaul.
a.
Measure the width of the driver (212) splines. If less than 2 mm the driver must
be replaced.
b.
Measure the wear of the rotation chuck bushing (206). If worn more than 1 mm
the Rock Drill must be sent for overhaul. See chapter Rock Drill Overhaul.
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