8 
ENC007-8 
IMPORTANT SAFETY 
INSTRUCTIONS 
FOR BATTERY CARTRIDGE 
1. Before using battery cartridge, read all 
instructions and cautionary markings on (1) 
battery charger, (2) battery, and (3) product 
using battery. 
2. Do not disassemble battery cartridge. 
3. If operating time has become excessively 
shorter, stop operating immediately. It may 
result in a risk of overheating, possible burns 
and even an explosion. 
4. If electrolyte gets into your eyes, rinse them 
out with clear water and seek medical 
attention right away. It may result in loss of 
your eyesight. 
5. Do not short the battery cartridge: 
(1) Do not touch the terminals with any 
conductive material. 
(2) Avoid storing battery cartridge in a 
container with other metal objects such 
as nails, coins, etc. 
(3) Do not expose battery cartridge to water 
or rain. 
A battery short can cause a large current flow, 
overheating, possible burns and even a 
breakdown. 
6. Do not store the tool and battery cartridge in 
locations where the temperature may reach or 
exceed 50 ゚C (122 ゚F). 
7. Do not incinerate the battery cartridge even if 
it is severely damaged or is completely worn 
out. The battery cartridge can explode in a fire. 
8. Be careful not to drop or strike battery. 
9. Do not use a damaged battery. 
10. Follow your local regulations relating to 
disposal of battery. 
SAVE THESE INSTRUCTIONS. 
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 ゚C - 40 ゚C (50 ゚F - 104 ゚F). 
Let a hot battery cartridge cool down before 
charging it. 
4. Charge the battery cartridge once in every six 
months if you do not use it for a long period 
of time. 
FUNCTIONAL DESCRIPTION 
 
CAUTION: 
• Always be sure that the tool is switched off and the 
battery cartridge is removed before adjusting or 
checking function on the tool. 
Installing or removing battery cartridge 
Fig.1 
CAUTION: 
• Always switch off the tool before installing or 
removing of the battery cartridge. 
• Hold the tool and the battery cartridge firmly 
when installing or removing battery cartridge. 
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. 
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. 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. 
 
CAUTION: 
• Always install the battery cartridge 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 install the battery cartridge forcibly. If the 
cartridge does not slide in easily, it is not being 
inserted correctly. 
NOTE: 
• The tool does not work with only one battery 
cartridge. 
• When the battery cartridge is not removed easily, 
push it from the opposite side of the button and 
slide it. 
Tool / battery protection system 
The tool is equipped with a tool/battery protection 
system. This system automatically cuts off power to the 
motor to extend tool and battery life. 
The tool will automatically stop during operation if the 
tool or battery are placed under one of the following 
conditions. In some conditions, the indicators light up. 
Fig.2 
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 indications. 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.