Torque Limiter - Makita HR2455 Instruction Manual

counterclockwise rotation, you cannot push in the
lock button.
This tool has a reversing switch to change the direction of
rotation. Move the reversing switch lever to the
tion (A side) for clockwise rotation or to the
(B side) for counterclockwise rotation.
Selecting action mode
For Model HR2445
1
This tool employs an action mode changing knob. Select
one of the two modes suitable for your work needs by
using this knob. For rotation only, turn the knob so that
the arrow on the knob points toward the
the tool body. For rotation with hammering, turn the knob
so that the arrow on the knob points toward the
bol on the tool body.
CAUTION:
• Always set the knob fully to your desired mode
symbol. If you operate the tool with the knob
positioned half-way between the mode symbols,
the tool may be damaged.
For Model HR2455
CAUTION:
• Do not rotate the action mode changing knob when
the tool is running under load. The tool will be
damaged.
• To avoid rapid wear on the mode change
mechanism, be sure that the action mode changing
knob is always positively located in one of the three
action mode positions.
Rotation with hammering
3
For drilling in concrete, masonry, etc., depress the lock
button and rotate the action mode changing knob to the
symbol. Use a tungsten-carbide tipped bit.
position
001294
1. Action mode
changing knob
symbol on
003573
1. Rotation with
1
hammering
2
2. Lock button
3. Action mode
changing knob
Hammering only
posi-
For chipping, scaling or demolition operations, depress
the lock button and rotate the action mode changing
knob to the
ing chisel, etc.
Rotation only
sym-
1
For drilling in wood, metal or plastic materials, depress
the lock button and rotate the action mode changing
knob to the

Torque limiter

The torque limiter will actuate when a certain torque level
is reached. The motor will disengage from the output
shaft.
When this happens, the bit will stop turning.
CAUTION:
• As soon as the torque limiter actuates, switch off
the tool immediately. This will help prevent
premature wear of the tool.
• Hole saws cannot be used with this tool. They tend
to pinch or catch easily in the hole. This will cause
the torque limiter to actuate too frequently.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
5
003574
1. Hammering only
1
symbol. Use a bull point, cold chisel, scal-
003575
1. Rotation only
symbol. Use a twist drill bit or wood bit.