Extra Information

English
7
〈UC18YG〉
Before using the impact driver or impact wrench, charge
the battery as follows.
1. Connect the charger power cord to the receptacle
Connecting the power cord will turn on the charger.
2. Insert the battery into the charger
Insert the battery firmly while observing its direction,
until it contacts the bottom of the charger (the pilot
lamp lights up).
CAUTION
If the pilot lamp does not light up, pull out the
power cord from the receptacle and check the
battery mounting condition.
About 50 minutes is required to fully charge the
battery at a temperature of about 20°C. The pilot
lamp goes off to indicate that the battery is fully
charged.
The battery charging time becomes longer when a
temperature is low or the voltage of the power source
is too low.
When the pilot lamp does not go off even if more
than 120 minutes have elapsed after starting of the
charging, stop the charging and contact your HITACHI
AUTHORIZED SERVICE CENTER.
CAUTION
If the battery is heated due to direct sunlight, etc.,
just after operation, the charger pilot lamp may
not light up. At that time, cool the battery first,
then start charging.
3. Disconnect the charger power cord from the
receptacle
4. Hold the charger tight and pull out the battery
Regarding electric discharge in case of new
batteries, etc.
As the internal chemical substance of new batteries
and batteries that have not been used for an extended
period is not activated, the electric discharge might
be low when using them the first and second time.
This is a temporary phenomenon, and normal time
required for recharging will be restored by recharging
the batteries 2 – 3 times.
How to make the batteries perform longer
(1)Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery life will be shortened. Leave the battery
and recharge it after it has cooled for a while.
PRIOR TO OPERATION
1. Preparing and checking the work environment
Make sure that the work site meets all the conditions
laid forth in the precautions.
2. Checking the battery
Make sure that the battery is installed firmly. If it is at
all loose it could come off and cause an accident.
3. Installing the bit (Impact driver)
Always follow the following procedure to install driver
bit (Fig. 2).
(1) Pull the guide sleeve 7 away from front of the tool.
(2) Insert the bit 9 into the hexagonal hole in the anvil 8.
(3) Release the guide sleeve 7 and it returns to its original
position.
CAUTION
If the guide sleeve does not return to its original
position, then the bit is not installed properly.
4. Selecting the socket matched to the bolt
(Impact wrench)
Be sure to use a socket which is matched to the bolt
to be tightened. Using an improper socket will not
only result in insufficient tightening but also in
damage to the socket or nut.
A worn or deformed hex. or square-holed socket will
not give an adequate tightness for fitting to the nut or
anvil, consequently resulting in loss of tightening
torque.
Pay attention to wear of socket hole, and replace
before further wear has developed.
5. Installing a socket (Impact wrench)
Select the socket to be used.
䢇 Pin, O-ring type
(1) Align the hole in the socket with the hole in the anvil
and insert the anvil into the socket.
(2) Insert the pin into the socket.
(3) Attach the ring to the groove on the socket.
䢇 Plunger type (Fig. 3)
Align the plunger located in the square part of the
anvil B with the hole in the hex. socket 0. Then push
the plunger, and mount the hex. socket 0 on the anvil
B. Check that the plunger is fully engaged in the hole.
When removing the socket 0, reverse the sequence.
䢇 Retaining ring type
(1) Align the square portions of the socket and the anvil
with each other.
(2) Make sure to firmly install the socket by pushing it all
the way into the anvil.
(3) When removing the socket, pull it out of the anvil.
CAUTION
䡬 Please use the designated attachments which are
listed in the operations manual and Hitachi’s catalog.
Accidents or injuries could result from not doing so.
䡬 Make sure to firmly install the socket in the anvil. If
the socket is not firmly installed it might come out
and cause injuries.
HOW TO USE
CAUTION on lithium-ion battery
To extend the lifetime, the lithium-ion battery equips
with the protection function to stop the output. Therefore,
if the tool is overloaded, the motor may stop. However,
this is not the trouble but the result of protection function.
In this case, release the switch of tool and eliminate the
causes of overloading.
CAUTION
䡬 When using the light equipped hook, pay sufficient
attention so that the main equipment does not fall. If
the tool falls, there is a risk of accident.