FlexiROC T30 R 4 Operation
98 No: 2969809547.1.2969824267 en-US
Difficulties in Loosening the Coupling Sleeve
The best method of loosening the coupling sleeve is to “drill” the last few centimetres with-
out feed pressure and rotation, leaving percussion active for a few seconds to break the
coupling sleeve.
n Make sure the RPC-F system is set correctly. An RPC-F system that is set too high
causes excessive torque in the coupling sleeve.
Avoiding Hole Deflection
1.
Drill with as low drill feed pressure as possible.
2.
Check the condition of the drill bit.
3.
Use TAC tubes, drop center bits.
4.
Drill the first drill steel with reduced drilling for at least half of the drill steel in order to
minimize hole deflection at the start of the hole.
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