Atlas Copco BBC 16W Prescriptions De Sécurité Et Instructions Pour L'opérateur page 19

BBC 16W, 16WS, 34W, 34WS
Turn the feed control lever clockwise (B) to
♦
increase the feed force.
Turn the feed control lever anti-clockwise (A) to
♦
decrease the feed force.
When the feed control lever is in the closed
♦
position (A), the pusher leg is vented.
Valve pin
When the valve pin is pushed in, the feed force stops
abruptly and the setting on the feed control lever is
overridden. The piston rod in the pusher leg rectracts
automatically. This function is used, for example to
adjust the height of the rock drill, when rigging up
the pusher leg, or when there is a tendency to jam.
When the valve pin is depressed, the feed control
lever is activated again.
Start and stop
Starting the rock drill
1. Open the main valve for compressed air.
2. Open the cock (D) for the flushing water.
3. Adjust the feed control lever (C) to give a suitable
feed force for collaring the hole.
© 2010 Atlas Copco Construction Tools AB | No. 9800 0627 71 | 2010-03-16
Original instructions
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Safety and operating instructions
4. Align the rock drill so that the drill steel touches
the required collaring point.
5. Move the throttle lever (A) forward a little, which
will start the water flushing, the percussion and
rotation.
6. Collar the hole with reduced feed force.
7. Move the throttle lever (A) fully forward once the
drill steel has gained a secure footing in the rock.
8. Adjust the feed force by turning the feed control
lever (C) so that the maximum penetration rate
is obtained.
Stopping the rock drill
1. Pull the throttle lever (A) backwards, which will
stop the percussion, rotation, and flushing water.
2. Turn the feed control lever (C) to the closed
position.
Operating
Drilling
Use protective shoes, gloves, helmet, ear
♦
protectors and impact resistant eye protection with
side protection.
Stand firmly and always hold the machine with
♦
both hands.
Hold the inserted tool firmly against the work
♦
surface before starting the machine.
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