Makita HR4510C Manual De Instrucciones página 8

HR4510C
► 1. Change lever 2. Pointer 3. Lock button
HR4511C
► 1. Pointer 2. Change lever 3. Lock button
Depth gauge
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► 1. Depth gauge 2. Clamp screw
The depth gauge is convenient for drilling holes of
uniform depth. Insert the depth gauge into the hole in
the grip base. Adjust the depth gauge to the desired
depth and then tighten the clamp screw to secure the
depth gauge.
NOTE:
• The depth gauge cannot be used at the position
where the depth gauge strikes against the tool
body.
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OPERATION
Hammer drilling operation
Set the change lever to the
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:
• There is a tremendous and sudden twisting
force exerted on the tool/bit at the time of hole
break-through, when the hole becomes clogged
with chips and particles, or when striking rein-
forcing rods embedded in the concrete. Always
use the side grip (auxiliary handle) and firmly
hold the tool by both side grip and switch handle
during operations. Failure to do so may result
in the loss of control of the tool and potentially
severe injury.
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.
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