Operator’s instructions
7. Drilling
73
4. Move the rock drill up by setting the lever for rapid feed in UP position. Once the
rock drill has reached its upper position, set the lever in NEUTRAL position.
5. Move in a new drill steel from the carousel to drill centre by moving the control
lever for rod handling backwards. If there is no drill steel in the rod grippers then
the carousel must first be rotated.
6. Thread the shank adapter fully into the new drill steel by setting the rotation lever
in DRILL ROTATION position. Following which, reset the lever to NEUTRAL
position.
7. Move rod handling lever to centre position. The rod grippers then adopt loose grip
with a lower gripping force that allows the drill steel to rotate in the grippers.
8. Thread the new drill steel into the drill string by setting the rotation lever in
DRILL ROTATION position. Following which, reset the lever to NEUTRAL
position.
9. Open the gripper by holding the top button depressed and then moving the arm
into the carousel by moving the rod handling lever to forward. Hold the button
depressed throughout the whole action.
10. If necessary, rotate a new drill steel into the rod gripper.
11. Open both drill steel supports before the drilling is resumed.
12. Raise the cradle approx. 100mm by moving the feed lever to RETURN FEED
position.
13. Set the switch for percussion pressure to REDUCED PERCUSSION PRES-
SURE/DRILL FEED PRESSURE position.
14. Set the switch for dust collector and flushing air to DUST COLLECTOR ON/
FLUSHING AIR ON position.
15. Set the lever for rotation in DRILL ROTATION position.
16. Set the lever for feed to DRILL FEED.
17. Set the lever for percussion mechanism in PERCUSSION MECHANISM posi-
tion.
18. When the coupling sleeve has passed the drill steel support it must be closed. Set
the lever for drill steel support in CLOSED position.
19. Set the switch for percussion pressure in AUTOMATIC REGULATION OF PER-
CUSSION PRESSURE position.
To Next Page
Loading...
