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Installing or removing the bit
► 1. Tool retainer
Pivot the tool retainer to the side. (If it is difficult to move
the tool retainer with your thumbs, tap it with a ham-
mer.) Insert the bit into the tool barrel as far as it will go.
Return the tool retainer to its original position to secure
the bit.
To remove the bit, follow the installation procedure in
reverse.
Depth gauge
1
► 1. Depth gauge 2. Clamp screw
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the clamp screw and adjust
the depth gauge to the desired depth. After adjusting,
tighten the clamp screw.
OPERATION
CAUTION:
Always use the side grip (auxiliary
handle) and firmly hold the tool by both side grip and
switch handle during operations.
Hammer drilling operation
1
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light pres-
sure gives best results. Keep the tool in position and
prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
CAUTION:
•
When the bit begins to break through concrete
or if the bit strikes reinforcing rods embedded
2
in concrete, the tool may react dangerously.
Maintain good balance and safe footing while
holding the tool firmly with both hands to prevent
dangerous reaction.
Blow-out bulb (optional accessory)
► 1. Blow-out bulb
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
5 ENGLISH
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