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GENERAL OPERATIONAL PRECAUTIONS
1. Keep work area clean. Cluttered areas and benches
invite accidents.
2. Avoid dangerous environment. Don’t expose power
tools and charger to rain. Don’t use power tools
and charger in damp or wet locations. And keep
work area well lit. Never use power tools and
charger near flammable or explosive materials.
Do not use tool and charger in presence of
flammable liquids or gases.
3. Keep children away. All visitors should be kept
safe distance from work area.
4. Store idle tools and charger. When not in use,
tools and charger should be stored in dry, high
or locked-up place-out of reach of children. Store
tools and charger in a palce where the temperature
is less than 40˚C.
5. Don’t force tool. It will do the job better and safer
at the rate for which it was designed.
6. Use right tool. Don’t force small tool or attachment
to do the job of a heavy duty tool.
7. Wear proper apparel. Do not wear clothing or
jewelry. They can be caught in moving parts.
Rubber gloves and footwear are recommended
when working outdoor.
8. Use eye protection with most tools. Also use face
or dust mask if cutting operation is dusty.
9. Don’t abuse cord. Never carry charger by cord or
yank it to disconnect from receptacle. Keep cord
from heat, oil and sharp edges.
10. Secure work. Use clamps or a vise to hold work.
It’s safer than using your hand and it frees both
hands to operate tool.
11. Don’t overreach. Keep proper footing and balance
at all times.
12. Maintain tools with care. Keep tools sharp at all
times, and clean for best and safest performance.
Follow instructions for lubricating and changing
accessories.
13. When the charger is not in use, or when being
maintained and inspected, disconnect its power
cord from the AC outlet.
14. Remove chuck wrenches and wrenches. Form habit
of checking to see that wrenches are removed
from tool before turning it on.
15. Avoid accidental starting. Don’t carry tool with
finger on switch.
16. To avoid danger, always use only the specified
charger.
17. Use only original HITACHI replacement parts.
18. Do not use power tools for applications other than
those specified in the Handling Instructions.
19. To avoid personal injury, use only the accessories
or attachment recommended in these handling
instructions or in the HITACHI catalog.
20. If the supply cord of this charger is damaged, the
charger must be returned to the HITACHI
authorized service center for the cord to be
replaced. Let only the authorized service center
do the repairing. The Manufacturer will not be
responsible for any damages or injuries caused
by repair by the unauthorized persons or by
mishandling of the tool.
21. To ensure the designed operational integrity of
power tools and charger, do not remove installed
covers or screws.
22. Always use the charger at the voltage specified
on the nameplate.
23. Do not touch movable parts or accessories unless
the battery has been removed.
24. Always charge the battery before use.
25. Never use a battery other than that specified. Do
not connect a usual dry cell, a rechargeable battery
other than that specified or a car battery to the
power tool.
26. Do not use any transformer that has a booster.
27. Do not charge the battery from an engine electric
generator or DC power supply.
28. Always charge indoors. Because the charger and
battery heat slightly during charging, charge the
battery in a place not exposed to direct sunlight;
where the humidity is low and the ventilation
good.
29. When working in a high place, pay attention to
the activities below to make sure there are no
people below.
30. Use the exploded assembly drawing on this
handling instructions only for authorized servicing.
PRECAUTIONS FOR CORDLESS IMPACT
WRENCH
1. This is a portable tool for tightening and loosening
bolts and nuts. Use it only for these operation.
2. Use the earplugs if using for a long time.
3. One-hand operation is extremely dangerous; hold
the unit firmly with both hands when operating.
4. Check that the socket is not cracked or broken.
Broken or cracked sockets are dangerous. Check
the socket before using it.
5. Secure the socket with the socket pin and the ring.
If the socket pin or ring securing the socket is
damaged, the socket may come off from the impact
wrench, which is quite dangerous. Do not use
socket pins or rings that are deformed, worn out,
cracked, or in any other way damaged. Always
make sure to install the socket pin and ring in
the correct position.
6. Check the tightening torque.
The appropriate torque for tightening a bolt
depends on the material the bolt is made of, its
dimensions, grade, etc.
Also, the tightening torque generated by this
impact wrench depends on the materials and
dimensions of the bolt, how long the impact
wrench is applied for the way in which the socket
is installed, etc.
Also the torque when the battery has just been
charged and when it is about to run out are
slightly different. Use a torque wrench to check
that the bolt has been tightened with the
appropriate torque.
7. Stop the impact wrench before switching the
direction of rotation. Always release the switch
and wait for impact wrench to stop before
switching the direction of rotation.
8. Never touch the turning part.
Do not allow the turning socket section to get near
your hands or any other part of your body. You
could be cut or caught in the socket. Also, be
careful not to touch the socket after using
continuously it for a long time. It gets quite hot
and could burn you.
9. Never let the impact wrench turn without a load
when using the universal joint.
If the socket turns without being connected to a
load, the universal joint causes the socket to turn
wildly.
You could get hurt or the movement of the socket
could shake the impact wrench so much as to
make you drop it.
10. Always charge the battery at a temperature of 0
– 40°C.
A temperature of less than 0°C will result in over
charging which is dangerous. The battery cannot
be charged at a temperature greater than 40°C.
The most suitable temperature for charging is that
of 20 – 25°C.