Safety and operating instructions
Operation
WARNING Involuntary start
Involuntary start of the machine may cause injury.
Keep your hands away from the start and stop
►
device until you are ready to start the machine.
►
Learn how the machine is switched off in the event
of an emergency.
►
Stop the machine immediately in all cases of
power supply interruption.
Preparations before starting
Check the drilling equipment
♦
Check that all of the drilling equipment is in good
condition.
♦
Check that the impact surface of the drill steel
shank is flat, with no signs of wear.
♦
Make sure that the air inlet and exhaust ports are
free from obstructions.
♦
Check that the flushing holes in the drill steel and
drill bit are not blocked, and that the flushing air
and water flows through without obstruction.
♦
Make sure that the air filter (located in the air
nipple) is clean and not torn or distorted.
♦
Ensure that the fittings are tight and leak-proof.
DANGER Whipping air hose
A compressed air hose that comes loose can lash
around and cause personal injury or death
►
Check that the compressed air hose and the
connections are not damaged.
Check that all compressed air connections are
►
properly attached.
Blow out the air hose
Every day before using the drill, blow out the air
♦
hose to clear it of accumulated dirt and moisture.
Fill the lubricator with oil
♦
Check that the chuck and drill steel shank are
always covered with a film of oil.
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Controls
Throttle lever
Start the machine by squeezing the trigger while
firmly holding the handle.
Stop the machine by releasing the trigger. The trigger
returns automatically to the stop position.
Start and stop
Starting the rock drill
1. Align the rock drill so that the drill steel touches
the required collaring point.
2. Collar the hole with reduced feed force.
3. Press the trigger fully once the drill steel has
gained a secure footing in the rock.
Stopping the rock drill
1. Slightly release the trigger, which will stop the
percussion and rotation.
2. Run the rock drill at medium speed when
retracting the drill steel from the drilled hole.
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.
BBD 12D, 12DS, 12DCS
Original instructions