• If you charge a battery cartridge from a just-operated tool or a battery cartridge which has been left in a
location exposed to direct sunlight or heat for a long time, the charging light may flash in red color. If this
occurs, wait for a while. Charging will begin after the battery cartridge cools. The battery cartridge will cool
faster if you remove the battery cartridge from the fast charger.
• If the charging light flashes alternately in green and red color, a problem exists and charging is not possible.
The terminals on the charger or battery cartridge are clogged with dust or the battery cartridge is worn out or
damaged.
Trickle charge (Maintenance charge)
If you leave the battery cartridge in the charger to prevent spontaneous discharging after full charge, the
charger will switch into its ''trickle charge (maintenance charge)'' mode and keep the battery cartridge fresh and
fully charged.
Tips for maintaining maximum battery life
1. Charge the battery cartridge before completely discharged.
Always stop tool operation and charge the battery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room temperature at 10°C – 40°C (50°F – 104°F).
Let a hot battery cartridge cool down before charging it.
4. Charge the Nickel Metal Hydride battery cartridge when you do not use it for more than six months.
Installing or removing bit
Important:
Always be sure that the tool is switched off and the battery cartridge is removed before installing or removing
the bit.
Use only the driver bit or socket bit shown in the figure below.
Do not use any other driver bit or socket bit.
To install the bit, pull the sleeve in the direction of the arrow and insert the bit into the sleeve as far as it will go.
Then release the sleeve to secure the bit. (Fig. 3)
To remove the bit, pull the sleeve in the direction of the arrow and pull the bit out firmly.
NOTE:
If the bit is not inserted deep enough into the sleeve, the sleeve will not return to its original position and the
bit will not be secured. In this case, try re-inserting the bit according to the instructions above.
Switch action (Fig. 4)
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 trigger. Tool speed is
increased by increasing pressure on the trigger.
Release the trigger to stop.
Reversing switch action (Fig. 5)
CAUTION:
• Always check the direction of rotation before opera-
tion.
• 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.
6
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• When not operating the tool, always set the revers-
ing switch lever to the neutral position.
This tool has a reversing switch to change the direc-
tion of rotation. Depress the reversing switch lever
from the A side for clockwise rotation or from the B
side for counterclockwise rotation. When the switch
lever is in the neutral position, the switch trigger
cannot be pulled.
Installing set plate (Fig. 6)
Always install the set plate when using battery car-
tridges 9100, 9102 or 9102A. Install the set plate on
the tool with the screw provided as shown in Fig. 6.