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○ When the tree starts falling, switch the unit off , alert
the surroundings, and immediately retreat to a safe
location.
○ During work, if the saw chain or guide bar become
entangled in the tree, switch off and use a wedge.
14. During use, if the unit performance deteriorates, or you
notice any abnormal sound or vibration, immediately
switch off and discontinue use, and return to your
Hitachi Authorized Service Center for inspection or
repair.
If you continue using, injury may occur.
15. If the unit is accidentally dropped or exposed to impact,
inspect carefully for damage or cracks and ensure
there is no deformation.
If the unit is damaged, cracked or deformed, injury may
occur.
16. When transporting the unit by car, secure the unit to
prevent it moving.
There is a risk of accident.
17. Do not switch the unit on while the chain case is
attached.
Injury may occur.
18. Ensure there are no nails and other foreign objects in
the material.
If the saw chain impact on the nail etc., injury may
occur.
19. To avoid the guide bar becoming entangled with the
material when chopping on a verge or when subject to
the weight of material while cutting, install a supporting
platform close to the cutting position.
If the guide bar becomes entangled, injury may occur.
20. If the unit is to be transported or stored after use, either
remove the saw chain, or attach the chain cover.
If the saw chain comes into contact with your body,
injury may occur.
21. Adequately care for the unit.
○ To ensure work can be performed safely and effi ciently,
care for the saw chain to ensure it provides optimal
cutting performance.
○ When replacing the saw chain or guide bar, maintaining
the body, fi lling oil etc., follow the instruction manual.
22. Ask the shop to repair the unit.
○ Do not modify this product, since it already complies
with the applicable safety standards.
○ Always refer to your Hitachi Authorized Service Center
for all repairs.
Attempting to repair the unit yourself may result in an
accident or injury.
23. When not using the unit, ensure it is properly stored.
Drain off the chain oil, and keep in a dry place out of
reach of children or a locked location.
24. If the warning label is no longer visible, peels off or is
otherwise unclear, apply a new warning label.
For the warning label, refer to your Hitachi Authorized
Service Center.
25. When working, if local rules or regulations apply,
comply with the same.
PRECAUTIONS FOR BATTERY AND
CHARGER
1. Always charge the battery at a temperature of 0°C –
40°C. Charging the battery at temperatures outside the
range of 0°C – 40°C may prevent proper charging and
reduce battery life.
The most suitable temperature for charging is that of
20°C – 25°C.
2. When one charging is completed, leave the charger for
about 15 minutes before the next charging of battery.
Do not charge the battery more than 2 hours.
3. Do not allow foreign matter to enter the hole for
connecting the rechargeable battery.
4. Never disassemble the rechargeable battery and
charger.
5. Never short-circuit the rechargeable battery. Short-
circuiting the battery will cause a great electric current
and overheat. It results in burn or damage to the
battery.
6. Do not dispose of the battery in fi re. If the battery is
burnt, it may explode.
CAUTION ON LITHIUM-ION BATTERY
To extend the lifetime, the lithium-ion battery equips with
the protection function to stop the output.
In the cases of 1 to 3 described below, when using this
product, even if you are pulling the switch, the motor may stop.
This is not the trouble but the result of protection function.
1. When the battery power remaining runs out, the motor
stops.
In such case, charge it up immediately.
2. If the tool is overloaded, the motor may stop. In this
case, release the switch of tool and eliminate causes of
overloading. After that, you can use it again.
3. If the battery is overheated under overload work, the
battery power may stop.
In this case, stop using the battery and let the battery
cool. After that, you can use it again.
F urthermore, please heed the following warning and
caution.
WARNING
In order to prevent any battery leakage, heat generation,
smoke emission, explosion and ignition beforehand,
please be sure to heed the following precautions.
1. Make sure that swarf and dust do not collect on the battery.
○ During work make sure that swarf and dust do not fall
on the battery.
○ Make sure that any swarf and dust falling on the power
tool during work do not collect on the battery.
○ Do not store an unused battery in a location exposed to
swarf and dust.
○ Before storing a battery, remove any swarf and dust
that may adhere to it and do not store it together with
metal parts (screws, nails, etc.).
2. Do not pierce battery with a sharp object such as a
nail, strike with a hammer, step on, throw or subject the
battery to severe physical shock.
3. Do not use an apparently damaged or deformed battery.
4. Do not use the battery in reverse polarity.
5. Do not connect directly to an electrical outlets or car
cigarette lighter sockets.
6. Do not use the battery for a purpose other than those
specifi ed.
7. If the battery charging fails to complete even when a
specifi ed recharging time has elapsed, immediately
stop further recharging.
8. Do not put or subject the battery to high temperatures
or high pressure such as into a microwave oven, dryer,
or high pressure container.
9. Keep away from fi re immediately when leakage or foul
odor are detected.
10. Do not use in a location where strong static electricity
generates.
11. If there is battery leakage, foul odor, heat generated,
discolored or deformed, or in any way appears abnormal
during use, recharging or storage, immediately remove
it from the equipment or battery charger, and stop use.
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