Speed Change - Makita DDF470 Instruction Manual

Speed change

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CAUTION:
Always set the speed change lever fully to the
•
correct position. If you operate the tool with the
speed change lever positioned halfway between
the "1" side and "2" side, the tool may be
damaged.
Do not use the speed change lever while the tool
•
is running. The tool may be damaged.
If the tool speed is coming down extremely during
•
the operation with "2", slide the lever to the "1" and
restart the operation.
Position of speed
Speed
adjusting lever
1
Low
2
High
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Guideline of fastening torque
Adjusting graduations
Machine screw
Wood screw
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1. Speed change
1
lever
Torque
Applicable operation
High Heavy loading operation
Low Light loading operation
1 2
M4
Soft wood
(e.g. pine)
Hard wood
(e.g. lauan)
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.
Adjusting the fastening torque
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The fastening torque can be adjusted in 17 steps 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 16. 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.
4 6 8
M5
3.5 x 22
3.5 x 22
8
1. Adjusting ring
1
2. Graduation
3. Arrow
2
3
10 12 14
M6
4.1x 38
4.1x 38
16