Before Use; Operation - Hitachi Koki WH 18DGL Manual De Instrucciones

● When the pilot lamp fl ickers (at 0.2-second
intervals), check for and take out any foreign
objects in the charger's battery connector.
If there are no foreign objects, it is probable that
the battery or charger is malfunctioning. Take it
to your authorized Service Center.
● Since the built-in micro computer takes about
3 seconds to confi rm that the battery being
charged with UC18YKSL is taken out, wait for a
minimum of 3 seconds before reinserting it to
continue charging. If the battery is reinserted
within 3 seconds, the battery may not be properly
charged.

BEFORE USE

Check the work area to make sure that it is clear of debris
and clutter.
Clear the area of unnecessary personnel. Ensure that
lighting and ventilation is adequate.

OPERATION

1. Installing the bit
Always follow the following procedure to install driver
bit. (Fig. 5)
Guide sleeve
Driver bit
Hexagonal hole
in the socket
(1) Pull the guide sleeve forward.
(2) Insert the bit into the hexagonal hole in the socket.
(3) Release the guide sleeve 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.
2. Removing the bit
Please do the opposite point on the method of
installing bit.
3. Confi rm that the battery is mounted correctly
4. Check the rotational direction.
The bit rotates clockwise (viewed from the rear side)
by pushing the R-side of the selector button.
The L-side of the selector button is pushed to turn the
bit counterclockwise (See Fig. 6).
(The and marks are provided on the body.)
Movement
Fig. 5
marks
Trigger
switch
5 Switch operation
○ When the trigger switch is depressed, the tool rotates.
When the trigger is released, the tool stops.
○ The rotational speed can be controlled by varying
the amount that the trigger switch is pulled. Speed
is low when the trigger switch is pulled slightly and
increases as the trigger switch is pulled more.
○ When releasing the trigger of the switch, the brake will
be applied for immediate stopping.
NOTE
A buzzing noise is produced when the motor is about
to rotate. This is only a noise, not a machine failure.
6. Tightening and loosening screws
Install the bit that matches the screw, line up the bit in
the grooves of the head of the screw, then tighten it.
Push the impact driver just enough to keep the bit
fi tting the head of the screw.
CAUTION
● Applying the impact driver for too long tightens
the screw too much and can break it.
● Tightening a screw with the impact driver at
an angle to that screw can damage the head
of the screw and the proper force will not be
transmitted to the screw.
Tighten with this impact driver lined up straight
with the screw.
7. Tightening and loosening bolts
A hex. socket matching the bolt or nut must fi rst be
selected. Then mount the socket on the anvil, and grip
the nut to be tightened with the hex. socket. Holding
the wrench in line with the bolt, press the power switch
to impact the nut for several seconds.
If the nut is only loosely fi tted to the bolt, the bolt
may turn with the nut, therefore mistaking proper
tightening. In this case, stop impact on the nut and
hold the bolt head with a wrench before restarting
impact, or manually tighten the bolt and nut to prevent
them slipping.
English
marks
Selector
button
Fig. 6
13