7 ENGLISH
Position of
speed
change lever
Speed
Torque
Applicable
operation
1
Low
High
Heavy load-
ing operation
2
High
Low
Light loading
operation
To change the speed, switch off the tool first. Select
the "2" side for high speed or "1" for low speed but high
torque. Be sure that the speed change lever is set to the
correct position before operation.
If the tool speed is coming down extremely during the
operation with "2", slide the lever to the "1" and restart
the operation.
Adjusting the fastening torque
1
2
3
►
1.
Adjusting ring
2.
Graduation
3.
Arrow
The fastening torque can be adjusted in 21 levels by turning the adjusting ring. Align the graduations with the arrow
on the tool body. You can get the minimum fastening torque at 1 and maximum torque at
marking.
The clutch will slip at various torque levels when set at the number 1 to 20. The clutch does not work at
the
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.
The following shows the rough guide of the relationship between the screw size and graduation.
Graduation
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
Machine screw
M4
M5
M6
Wood
screw
Soft wood
(e.g. pine)
–
ɸ
3.5 x 22
ɸ
4.1x 38
–
Hard wood
(e.g. lauan)
–
ɸ
3.5 x 22
ɸ
4.1x 38
–
