Makita DHR280, Instruction Manual

Page: 19 / 186

19 ENGLISH
NOTE: When the tool is overheated, the lamp blinks.
Overdischarge protection
When the battery capacity is not enough, the tool stops
automatically. In this case, remove the battery from the tool and
charge the battery.
Switch action
WARNING:
Before installing the battery
cartridge into the tool, always check to see that
the switch trigger actuates properly and returns
to the "OFF" position when released.
►
Fig.3: 1. Switch trigger
To start the tool, simply pull the switch trigger. Tool speed is
increased by increasing pressure on the switch trigger. Release
the switch trigger to stop.
Speed change
The revolutions and blows per minute can be adjusted by
turning the adjusting dial. The dial is marked 1 (lowest speed)
to 5 (full speed). ►
Fig.4: 1. Adjusting dial
Refer to the table below for the relationship between the number
on the adjusting dial and the revolutions and blows per minute.
Number Revolutions per
minute
Blows per
minute
5 980 5,000
4 810 4,130
3 640 3,260
2 470 2,400
1 300 1,550
CAUTION:
Do not turn the adjusting dial when
the tool is running. Failure to do so may result in
the loss of control of the tool and cause an injury.
NOTICE:
If the tool is operated continuously at low
speed for a long time, the motor will get overloaded,
resulting in tool malfunction.
NOTICE:
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.
NOTE: Soft no-load rotation function (For
DHR282/DHR283)
When the speed adjusting dial is set to "3" or higher, the tool
automatically reduces the speed at no-load to reduce the
vibration under no-load. Once operation starts with a bit
against concrete, blows per minute increase and reach the
numbers as shown in the table. When temperature is low and
there is less fluidity in grease, the tool may not have this
function even with the motor rotating.
This function is not available when the dust
collection system is installed.
Lighting up the front lamp
►
Fig.5: 1. Lamp
CAUTION:
Do not look in the light or see the
source of light directly.
Pull the switch trigger to light up the lamp.
The lamp keeps on lighting while the switch
trigger is being pulled. The lamp goes out
approximately 10 seconds after releasing the
switch trigger.
CAUTION:
For DHR282/DHR283
If the lamp goes off after blinking for a few
seconds, the active feedback sensing technology
or the soft no-load rotation function is not
working properly.
Ask your local Makita Service Center for repair.
NOTE: Use a dry cloth to wipe the dirt off
the lens of the lamp. Be careful not to
scratch the lens of lamp, or it may lower the
illumination.
NOTE: If the dust collection system is
installed on the tool, the lamp of the dust
collection system lights up instead of the
lamp of the tool.
Reversing switch action
►
Fig.6: 1. Reversing switch lever
CAUTION:
Always check the direction of
rotation before operation.
CAUTION:
Use the reversing switch only after
the tool comes to a complete stop. Changing the
direction of rotation before the tool stops may
damage the tool.
CAUTION:
When not operating the tool,
always set the reversing switch lever to the
neutral position.
This tool has a reversing switch to change the
direction of rotation. Depress the reversing
switch lever from the A side for clockwise
rotation
or from the B side for
counterclockwise rotation. When the
reversing switch lever is in the neutral
position, the switch trigger cannot be pulled.
Changing the quick change
chuck for SDS-plus
For DHR281/DHR283
The quick change chuck for SDS-plus can be
easily exchanged for the quick change drill
chuck.