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Operator's instructions
8. Options
Unthreading and extracting with RAS
Knock loose the joints before extraction:
1. Open the drill-steel support fully by moving the drill-steel support selector to
opening position.
2. Pull up the drill string until the sleeve is in the drill-steel support by holding the
rapid feed selector in UP position.
3. Swing the rod handling arms to drill centre by moving the rod handling lever to the
arm to centre position.
4. Grip the drill steel by moving the lever for rod handling to closing position.
5. Tighten the joint between the shank adapter and the upper rod slightly by holding
the rotation/feed lever at drill rotation position for a few brief intervals.
6. Close the drill-steel support by moving the drill-steel support selector to closing
position.
7. Apply loose grip by moving the lever for the rod handling arms to NEUTRAL
position and the rod gripper lever to loose grip position.
8. Unscrew the drill steel fully from the sleeve in the drill-steel support by holding the
rotation/feed lever in reverse rotation position.
9. Raise the rock drill about 10cm by holding the rapid feed lever in UP position.
10. Apply hard grip by moving the rod gripper lever to CLOSED.
11. Unscrew the shank adapter from the upper coupling sleeve by holding the rotation
lever in reverse rotation position.
12. Unscrew the shank adapter fully from the drill steel. Hold the rotation lever in
reverse rotation position. Move the lever back to NEUTRAL once the shank adapter
has been unthreaded.
13. Move the drill rod away from drill centre by moving the lever for the rod handling
arms to the from drill centre position.
14. Lower the rock drill by holding the rapid feed lever in the DOWN position and then
thread the shank adapter into the coupling sleeve that is fastened in the drill-steel
support by holding the rotation lever in drill rotation position.
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