Makita HR4001C Instruction Manual page 6

1
1. Adjusting dial
2
1. Change lever
2. Pointer
3. Lock button
2
1. Change lever
2. Pointer
3. Lock button
6
Speed change
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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.
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
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For drilling in concrete, masonry, etc., depress the lock button and rotate the
HR4001C
change lever so that the pointer points to the
HR4010C
bide tipped bit.
1
3
006310
HR4011C
1
3
Number on Revolutions per
minute
adjusting dial
5
4
3
2
1
Blows per minute
480 2,750
440
2,550
360
2,050
270
1,550
230 1,350
symbol. Use a tungsten-car-
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