Functional Description - Makita DHR242 Instruction Manual

FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before adjust-
ing or checking function on the tool.
Installing or removing battery
cartridge
CAUTION:
• Hold the tool and the battery cartridge firmly
when installing or removing battery car-
tridge. Failure to hold the tool and the battery
cartridge firmly may cause them to slip off your
hands and result in damage to the tool and
battery cartridge and a personal injury.
► Fig.1: 1. Red indicator 2. Button 3. Battery cartridge
• Always switch off the tool before installing or
removing of the battery cartridge.
• To remove the battery cartridge, slide it from the
tool while sliding the button on the front of the
cartridge.
• To install the battery cartridge, align the tongue
on the battery cartridge with the groove in the
housing and slip it into place. Always insert it all
the way until it locks in place with a little click. If
you can see the red indicator on the upper side of
the button, it is not locked completely. Install it fully
until the red indicator cannot be seen. If not, it may
accidentally fall out of the tool, causing injury to
you or someone around you.
• Do not use force when installing the battery car-
tridge. If the cartridge does not slide in easily, it is
not being inserted correctly.
Battery protection system (Lithium-
ion battery with star marking)
► Fig.2: 1. Star marking
Lithium-ion batteries with a star marking are equipped
with a protection system. This system automatically
cuts off power to the tool to extend battery life.
The tool will automatically stop during operation if the
tool and/or battery are placed under one of the following
conditions:
• Overloaded:
The tool is operated in a manner that causes
it to draw an abnormally high current.
In this situation, release the trigger switch on
the tool and stop the application that caused
the tool to become overloaded. Then pull the
trigger switch again to restart.
If the tool does not start, the battery is over-
heated. In this situation, let the battery cool
before pulling the trigger switch again.
• Low battery voltage:
The remaining battery capacity is too low
and the tool will not operate. In this situation,
remove and recharge the battery.
Switch action
► Fig.3: 1. Switch trigger
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.
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.
Reversing switch action
► Fig.4: 1. Reversing switch lever
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 coun-
terclockwise rotation.
When the reversing switch lever is in the neutral posi-
tion, the switch trigger cannot be pulled.
CAUTION:
• Always check the direction of rotation before
operation.
• 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.
• When not operating the tool, always set the
reversing switch lever to the neutral position.
Changing the quick change chuck
for SDS-plus
For model DHR243
The quick change chuck for SDS-plus can be easily
exchanged for the quick change drill chuck.
Removing the quick change chuck
for SDS-plus
► Fig.5: 1. Quick change chuck for SDS-plus
2. Change cover line 3. Change cover
CAUTION:
• Before removing the quick change chuck for
SDS-plus, always remove the bit.
Grasp the change cover of the quick change chuck
for SDS-plus and turn in the direction of the arrow
until the change cover line moves from the
to the symbol. Pull forcefully in the direction of the
arrow.
Attaching the quick change drill
chuck
► Fig.6: 1. Spindle 2. Quick change drill chuck
3. Change cover 4. Change cover line
Check the line of the quick change drill chuck shows
the symbol. Grasp the change cover of the quick
change drill chuck and set the line to the
8 ENGLISH
symbol
symbol.