Operation; Depth Gauge; Dust Cup - Makita DHR263 Instruction Manual

Depth gauge

Fig.18
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the side grip and insert the depth
gauge into the hole in the side grip. Adjust the depth
gauge to the desired depth and tighten the side grip.
NOTE:
The depth gauge cannot be used at the position where
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the depth gauge strikes against the gear housing.

Dust cup

Fig.19
Use the dust cup to prevent dust from falling over the tool and
on yourself when performing overhead drilling operations.
Attach the dust cup to the bit as shown in the figure. The size
of bits which the dust cup can be attached to is as follows.
Dust cup 5
Dust cup 9
006382

OPERATION

Hammer drilling operation
Fig.20
Set the action mode changing knob to the
Position the bit at the desired location for the hole, then
pull the switch trigger.
Do not force the tool. Light pressure 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 reinforcing
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.
NOTE:
Eccentricity in the bit rotation may occur while operating the
tool with no load. The tool automatically centers itself during
operation. This does not affect the drilling precision.
Blow-out bulb (optional accessory)
Fig.21
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Bit diameter
6 mm - 14.5 mm
12 mm - 16 mm
symbol.
Chipping/Scaling/Demolition
Fig.22
Set the action mode changing knob to the
Hold the tool firmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled. Pressing very hard on
the tool will not increase the efficiency.
Drilling in wood or metal
For Model DHR263
Fig.23
Fig.24
Use the optional drill chuck assembly. When installing it,
refer to "Installing or removing the bit" described on the
previous page.
Set the action mode changing knob so that the pointer
points to the symbol.
For Model DHR264
Fig.25
Use the quick change drill chuck as standard equipment.
When installing it, refer to "changing the quick change
chuck for SDS-plus" described on the previous page.
Hold the ring and turn the sleeve counterclockwise to
open the chuck jaws. Place the bit in the chuck as far as
it will go. Hold the ring firmly and turn the sleeve
clockwise to tighten the chuck. To remove the bit, hold
the ring and turn the sleeve counterclockwise.
Set the action mode changing knob to the
You can drill up to 13 mm diameter in metal and up to
32 mm diameter in wood.
CAUTION:
Never use "rotation with hammering" when the drill
•
chuck assembly is installed on the tool. The drill
chuck assembly may be damaged. Also, the drill
chuck will come off when reversing the tool.
Pressing excessively on the tool will not speed up the
•
drilling. In fact, this excessive pressure will only serve
to damage the tip of your bit, decrease the tool
performance and shorten the service life of the tool.
There is a tremendous twisting force exerted on
•
the tool/bit at the time of hole breakthrough. Hold
the tool firmly and exert care when the bit begins
to break through the workpiece.
A stuck bit can be removed simply by setting the
•
reversing switch to reverse rotation in order to
back out. However, the tool may back out abruptly
if you do not hold it firmly.
Always secure small workpieces in a vise or
•
similar hold-down device.
9
symbol.
symbol.