Makita DHR280 Instruction Manual page 8

Overheat protection
When the tool or battery is overheated, the tool stops
automatically. In this case, let the tool and battery cool
before turning the tool on again.
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 car-
tridge into the tool, always check to see that the
switch trigger actuates properly and returns to
the "OFF" position when released.
► 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 (low-
est speed) to 5 (full speed).
► 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
5
4
3
2
1
CAUTION:
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 over-
loaded, 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)
1
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
1
► 1 . Lamp
1
CAUTION:
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.
8 ENGLISH
Revolutions per Blows per minute
minute
980
810
640
470
300
Do not turn the adjusting dial when
Do not look in the light or see the
5,000
4,130
3,260
2,400
1,550