Screwdriving Operation - Makita 6311D Instruction Manual

Speed change
To change the speed, slide the speed change
lever to the "H" side for high speed or
"L" side for low speed. To slide the speed
change lever easily, pull the trigger slightly
while pushing the speed change lever. Be
sure that the speed change lever is set to
the correct position before operation. Use
the right speed for your job.
CAUTION:
Always set the speed change lever fully into the correct position. If you operate the tool
with the speed change lever positioned halfway between the "H" side and "L" side, the
tool may be damaged.
Adjusting fastening torque
The fastening torque can be adjusted in
six
stages by turning the adjusting ring so that
the pointer on the adjusting ring points to
a
number on the tool body. The fastening
torque
is
minimum when the pointer points
to the number 1 and maximum when it
points to the
a\-
marking. The clutch will
slip
at
varying torque levels when the
pointer is set a t the numbers 1 to 5. The
clutch is designed not to slip a t the
markina.
Pointer
7
7 Drill marking
Before-actual operation, drive a trial screw into your material or
a
piece of duplicate
material to determine which torque level is required for
a
particular application.
NOTE
:
The adjusting ring cannot be locked with the pointer positioned half-way between the
numbers.
Screwdriving operation
Place the point of the driver bit in the
screw head and apply pressure
to
the tool.
Start the tool slowly and then increase the
speed gradually. Release the trigger as soon
as the clutch cuts in.
8