5
1
006308
Speed change
1
006334
The revolutions and blows per minute can be adjusted
just by turning the adjusting dial. The dial is marked 1
(lowest speed) to 5 (full speed).
Refer to the table below for the relationship between the
number settings on the adjusting dial and the
revolutions/blows per minute.
5
4
3
2
1
Number on
adjusting dial
Revolutions per
minute
Blows per minute
280
260
200
150
130
2,750
2,550
1,950
1,450
1,250
008417
CAUTION:
• If the tool is operated continuously at low speeds
for a long time, the motor will get overloaded,
resulting in tool malfunction.
• The speed adjusting dial can be turned only as far
as 5 and back to 1. Do not force it past 5 or 1, or the
speed adjusting function may no longer work.
Selecting the action mode
Rotation with hammering
1
2
HR4510C
3
008418
1
2
HR4511C
3
008365
For drilling in concrete, masonry, etc., depress the lock
button and rotate the change lever so that the pointer
points to the
symbol. Use a tungsten-carbide tipped bit.
Hammering only
FOR MODEL HR4510C
1
2
HR4510C
3
008419
For chipping, scaling or demolition operations, depress
the lock button and rotate the change lever so that the
pointer points to the
symbol. Use a bull point, cold
chisel, scaling chisel, etc.
For long time hammering (FOR MODEL HR4510C)
1
2
HR4510C
3
008420
For chipping, scaling or demolition operations, depress
the lock button and rotate the change lever so that the
pointer points to the
symbol. Use a bull point, cold
chisel, scaling chisel, etc.
CAUTION:
• When using the tool in the symbol mode, the
switch trigger does not work and only the slide
switch works.
1. Change lever
2. Pointer
3. Lock button
1. Change lever
2. Pointer
3. Lock button
1. Change lever
2. Pointer
3. Lock button
1. Change lever
2. Pointer
3. Lock button
1. Adjusting dial
1. Switch lever
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General
Weight and Dimensions
