
7
Attaching the quick change drill chuck
2
3
4
1
008234
Check the line of the quick change drill chuck shows the
symbol. Grasp the change cover of the quick change
drill chuck and set the line to the
symbol.
Place the quick change drill chuck on the spindle of the
tool.
Grasp the change cover of the quick change drill chuck
and turn the change cover line to the
symbol until a
click can clearly be heard.
Selecting the action mode
For Model HR2800
1
008236
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
symbol on the tool body.
For rotation with hammering, turn the knob so that the
arrow on the knob points toward the
symbol on the
tool body.
CAUTION:
• Always set the knob fully to your desired mode
symbol. If you operate the tool with the knob
positioned halfway between the mode symbols,
the tool may be damaged.
• Use the knob after the tool comes to a complete
stop.
For models HR2810, HR2810T, HR2811F, HR2811FT
Rotation with hammering
1
008206
For drilling in concrete, masonry, etc., rotate the action
mode changing knob to the
symbol. Use a tungsten-
carbide tipped bit.
Rotation only
1
008207
For drilling in wood, metal or plastic materials, lock
button and rotate the action mode changing knob to the
symbol. Use a twist drill bit or wood bit.
Hammering only
1
008208
For chipping, scaling or demolition operations, rotate the
action mode changing knob to the
symbol. Use a
bull point, cold chisel, scaling chisel, etc.
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.
Torque limiter
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the
1. Action mode
changing knob
1. Action mode
changing knob
1. Action mode
changing knob
1. Action mode
changing knob
1. Spindle
2. Quick change
drill chuck
3. Change cover
line
4. Change cover
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