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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.
Number on
Revolutions per
adjusting dial
minute
5
4
3
2
1
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
2
008418
1. Switch lever
1
1. Adjusting dial
Blows per minute
280
2,750
260
2,550
200
1,950
150
1,450
130
1,250
1. Change lever
HR4510C
2. Pointer
3. Lock button
1
3
2
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
008419
For chipping, scaling or demolition operations, depress
the lock button and rotate the change lever so that the
pointer points to the
chisel, scaling chisel, etc.
For long time hammering (FOR MODEL HR4510C)
3
1
008420
For chipping, scaling or demolition operations, depress
the lock button and rotate the change lever so that the
pointer points to the
chisel, scaling chisel, etc.
CAUTION:
When using the tool in the
•
switch trigger does not work and only the slide
switch works.
5
1. Change lever
HR4511C
2. Pointer
3. Lock button
1
3
1. Change lever
HR4510C
2. Pointer
3. Lock button
3
2
symbol. Use a bull point, cold
1. Change lever
2. Pointer
3. Lock button
2
HR4510C
symbol. Use a bull point, cold
symbol mode, the
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