Speed Change - Makita DUH551 Manuel D'instruction

Overload protection
When the tool is operated in a manner that causes it to
draw an abnormally high current, the tool automatically
stops without any indication. In this situation, turn the
tool off and stop the application that caused the tool to
become overloaded. Then turn the tool on to restart.
Overheat protection for tool/ battery
When the tool/ battery is overheated, the tool stops
automatically without any indication. The tool does not
start even if pulling the switch trigger. In this situation,
let the tool/ battery cool before turning the tool on again.
NOTE:
The battery overheat protection works only with a
battery cartridge with a star marking.
1
012128
Overdischarge protection
014634
When the remaining battery capacity gets low, the
battery indicator blinks on the applicable battery side.
By further use, the tool stops and the battery indicator
lights up about 10 seconds. In this situation, charge the
battery cartridge.
Handle mounting positions
CAUTION:
Always make sure that the handle is locked in the
•
desired position before operation.
1. Star marking
1. Battery indicator
1
1
014624
Depending on the operations, you can set the angle of
the handle either 45°or 90°position on left or right. To
turn the handle, pull the knob and turn the handle as
shown in the figure. The handle is locked in 45°position.
To turn the handle to 90°position, pull the knob again
and turn the handle more.
Switch action
CAUTION:
Before inserting the battery cartridge into the tool,
•
always check to see that the switch trigger
actuates properly and returns to the "OFF"
position when released.
3
1
014622
For your safety, this tool has a dual switching system.
To turn on the tool, press the lock-off button and press
the switch trigger A and B. To turn off the switch, release
either one of the switch triggers. The tool only starts
when pulling the both switch triggers.

Speed change

1
014623
The strokes per minute can be adjusted just by turning
the adjusting dial. This can be done even while the tool
is running. The dial is marked 1 (lowest speed) to 6 (full
speed).
6
1. Knob
2
2. Housing
2
1. Switch trigger B
2. Switch trigger A
3. Lock-off button
1. Adjusting dial