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Selecting action mode
For Model HR2445
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 rota-
tion 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 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
For drilling in concrete, masonry, etc., depress the lock but-
ton and rotate the action mode changing knob to the
symbol. Use a tungsten-carbide tipped bit.
Hammering only
For chipping, scaling or demolition operations, depress the
lock button and rotate the action mode changing knob to the
symbol. Use a bull point, cold chisel, scaling chisel, etc.
1. Action mode changing knob
1
001294
1. Rotation with hammering
2. Lock button
3. Action mode changing knob
1
2
3
003573
1. Hammering only
1
003574