How To Use - Hitachi W 4YD Handling Instructions Manual

INSTALLING AND REMOVING THE BIT
CAUTION
To prevent the chance of an accident, always turn off
the power switch and pull out the plug from the
socket.
NOTE
When replacing the bit be sure to install it securely so
it will not come loose or fall out later.
1. Removing the screw strip attachment
Grip the unit securely with one hand. With your other
hand, rotate the screw strip attachment in the direction
of the arrow in Fig. 7. Next pull in the direction of the
arrow in Fig. 8 and remove.
NOTE
This will be hard to remove if the lath or plaster
powder attaches near the attachment slot. Clean this
section carefully to prevent the lath or plaster powder
from adhering here.
Screw feed
attachment
Screw feed attachment
2. Attaching and removing the bit (Fig. 9)
No bits other than plus driver (Phillips) bits (No. 2,
136 mm long) can be used for screw strip tightening
jobs.
Attach the bits securely using the following procedure.
Move the guide sleeve to the top edge, feed the bit
into hexagonal hole on the anvil and then release the
guide sleeve.
To remove, perform the above procedure in reverse
order.
NOTE
The bit was not installed correctly (securely) if the
guide sleeve will not return to its original position.
Keep inserting the bit inside the hexagonal socket
head hole until it makes contact.
Fig. 7
Fig. 8
Driver bit No.2 (136L)
Socket hexagonal hole
Guide sleeve
3. Installing the screw strip attachment
Install using the steps in "1. Removing the screw
strip attachment" in reverse order.

HOW TO USE

CAUTION
Always use safety goggles during the work.
1. How to operate
Press the unit straight up against the work and pull
the switch trigger to automatically feed and tighten
the screws (Fig. 10).
NOTE
Place this unit straight up against the work during
screw-tightening. Using the unit while at an angle to
the work might damage the screw head or cause bit
wear. Also the proper tightening torque will not be
transmitted to the screw and might cause the screw
to seat improperly.
Press firmly on the unit until the screw tightening is
complete. Loosening the pushing pressure on the
unit might cause the screw to seat improperly.
When driving the screw, avoid hitting the unit as
pushing in.
This could prevent the screw from being sent
normally.
Attempting to tighten one screw on top of another
will cause the screw to fall or stop the screw feed so
use caution.
Driving blanks
During continuous screw tightening, you might not
notice you have run out of screws and continue to
operate the unit. Driving without any screws will
cause the bit to damage the lath or plaster board, so
do the screw tightening while checking the number
of screws remaining.
If the slider does not move smoothly, try cleaning the
sliding surfaces with an air gun, etc.
Fig. 9
Fig. 10
4