Makita HR2631F Instruction Manual page 12

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 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.
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.31: 1. Blow-out bulb
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
► Fig.32
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
CAUTION:
• Never use "rotation with hammering" when the
quick change drill chuck is installed on the tool.
The quick change drill chuck 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.
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.
For Model HR2631F, HR2641, HR2630
► Fig.33: 1. Drill chuck assembly (optional accessory)
Use the drill chuck assembly (optional accessory).
When installing it, refer to "Installing or removing the bit"
described on the previous page.
► Fig.34: 1. Chuck key
To install the bit, place it in the chuck as far as it will go.
symbol.
Tighten the chuck by hand. Place the chuck key in each
of the three holes and tighten clockwise. Be sure to
tighten all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise
in just one hole, then loosen the chuck by hand.
For Model HR2631FT, HR2320T, HR2630T
► Fig.35: 1. Quick change chuck for SDS-plus
► Fig.36: 1. Spindle 2. Quick change drill chuck
Use the quick change drill chuck as standard equip-
ment. When installing it, refer to "changing the quick
change chuck for SDS-plus " described on the previous
page.
► Fig.37: 1. Quick change drill chuck 2. Sleeve
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 clock-
wise to tighten the chuck.
To remove the bit, hold the ring and turn the sleeve
counterclockwise.
symbol.
Diamond core drilling
CAUTION:
• If performing diamond core drilling operations
using "rotation with hammering" action, the
diamond core bit may be damaged.
When performing diamond core drilling operations,
always set the change lever to the
"rotation only" action.
Operation when using the dust cup
(optional accessory)
► Fig.38: 1. Dust cup
Operate the tool with the dust cup against the ceiling
surface.
NOTE:
• The dust cup (optional accessory) is intended
only for drilling in the ceramic workpiece such
as concrete and mortar. Do not use the tool with
the dust cup when drilling in metal or similar.
Using the dust cup for drilling in the metal may
damage the dust cup due to the heat produced
by small metal dust or similar.
• Empty the dust cup before removing a drill bit.
• When using the dust cup, make sure that the
dust cap is mounted on it securely.
symbol.
12 ENGLISH
2. Change cover line 3. Change cover
3. Change cover line 4. Change cover
3. Ring
position to use