Makita DHP441 Manuel D'instruction page 9

Using hole
WARNING:
Never use the hanging hole for
unintended purpose, for instance, tethering the
tool at high location. Bearing stress in a heavily
loaded hole may cause damages to the hole, result-
ing in injuries to you or people around or below you.
► 1 . Hanging hole
Use the hanging hole at the bottom rear of the tool to
hang the tool on a wall using a hanging cord or similar
strings.
OPERATION
Hammer drilling operation
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.
First, slide the action mode change lever so that it
points to the marking. The adjusting ring can be
aligned in any torque levels for this operation.
Be sure to use a tungsten-carbide tipped bit.
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.
Blow-out bulb (optional accessory)
1
► 1 . Blow-out bulb
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Screwdriving operation
First, slide the action mode change lever so that it
points to the
the proper torque level for your work. Then proceed as
follows.
Place the point of the driver bit in the screw head and
apply pressure to the tool. Start the tool slowly and then
increase the speed gradually. Release the switch trigger
as soon as the clutch cuts in.
NOTE:
• Make sure that the driver bit is inserted straight
in the screw head, or the screw and/or bit may
be damaged.
• When driving wood screws, predrill pilot holes
to make driving easier and to prevent splitting of
the workpiece. See the chart.
Nominal diameter of wood screw
4.5 (11/64")
5.1 (13/64")
6.1 (15/64")
9 ENGLISH
marking. Adjust the adjusting ring to
Recommended size of pilot hole
(mm)
3.1 (1/8") 2.0 - 2.2 (5/64" - 3/32")
3.5 (9/64") 2.2 - 2.5 (3/32" - 3/32")
3.8 (5/32") 2.5 - 2.8 (3/32" - 7/64")
2.9 - 3.2 (7/64" - 1/8")
4.8 (3/16") 3.1 - 3.4 (1/8" - 9/64")
3.3 - 3.6 (1/8" - 9/64")
5.5 (7/32") 3.7 - 3.9 (9/64" - 5/32")
5.8 (7/32") 4.0 - 4.2 (5/32" - 11/64")
4.2 - 4.4 (11/64" - 11/64")
1
(mm)