Maintenance And Inspection - Hitachi W 6VB Bedienungsanleitung

2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, inviting serious
accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Confirm the direction of bit rotation (Fig.1)
The bit rotates clockwise (viewed from the rear side)
when the reversing switch lever is set to the "R" side
position. When the lever is set to the "L" side position,
the bit rotates counterclockwise and can be used to
loosen and retract screws.
5. Adjusting the tightening depth (Fig.2)
Pull the lock sleeve in the direction of arrow to remove
it from the spline installed in the gear cover. When
the lock sleeve is released, the lock sleeve returns to
the gear cover. While pulling the lock sleeve and
turning it right and left, adjust the position of locator.
Release the lock sleeve and aligen the gear cover
spline with the lock sleeve spline.
The lock sleeve is automatically inserted onto the
gear cover spline and locked.
(1) For hex-head screws:
Mount a hex-head screw on the hex-socket and set
the distance between the locator assembly end and
the screw head bottom to 1.5–2 mm, as shown in
Fig.3.
(2) For drywall screws:
Mount a drywall screw on the bit, and set the distance
between the locator assembly end and the screw
head to 0.5–1 mm, as shown in Fig.4.
(3) For plus-head self-drilling screws:
Mount a self-drilling screw on the bit, and set the
distance between the locator assembly end and the
screw head bottom to 1–1.5 mm, as shown in Fig.5.
6. Mounting the bit
For details, refer to the item "Mounting and
dismounting the bit".
7. Fixing the side handle
Always hold the body handle and side handle of the
screw driver firmly. Otherwise the counterforce
produced may result in inaccurate and even
dangerous operation.
MOUNTING AND DISMOUNTING THE HEX-
SOCKET OR THE BIT
1. Dismounting the hex-socket (Figs.6 and 7)
(1) Hold the locator without turning it and fully pull the
lock sleeve in the direction of arrow A.
Turn the clock sleeve about 0.2 " clockwise or
counterclockwise. The locator claw is engaged with
the groove in the inner part of the lock sleeve spline
over circumference. The lock sleeve is now locked to
the locator. Though the lock sleeve is not held, it
does not return to the gear cover. Turn the locator in
the direction of arrow B and remove the locator
ass'y.
(2) Remove the hex-socket, hold it with the opposite
side of bit with hand or vice and pull out the bit with
a pliers.
2. Dismounting the bit (Figs. 6 and 8)
Remove the locator alike case of hex-head socket
and remove the bit holder, then pull out the bit with
a pliers.
3. Mounting the hex-socket or the bit
Install the bit in the reverse order to removel.
HOW TO USE THE SCREW DRIVER
1. Switch operation and rotational speed
adjustment
Bit rotational speed can be regulated between 0 and
2600/min varying the degree by which the trigger
switch is pulled. Rotational speed increases as the
trigger switch is pulled, and reaches a maximum
speed of 2600/min when the trigger switch is pulled
fully.
To facilitate continuous operation, pull the trigger
switch and depress the switch stopper. The switch
will then remain ON even when the finger is removed.
By pulling the trigger switch again, the switch stopper
is disengaged and the switch is turned OFF when the
trigger switch is released.
2. Screwdriver operation
When the switch is turned ON, the motor starts to run
but the hex-socket (or the bit) does not rotate. Attach
the hex-socket to the screw head groove, and push
the screwdriver against the screw. The hex-socket
then rotates, tightening the screw.
CAUTION
Ensure that the screwdriver is held truly perpendicular
to the head of the screw.
If held at an angle, the driving force will not be fully
transferred to the screw, and the screw head and/or
hex-socket will be damaged. Hexsocket rotation stops
when pushing force is released.
3. Direction of hex-socket rotation
The hex-socket rotates clockwise (viewed from the
rear side) when the reversing switch lever is set to
the "R" side position. When the lever is set to the "L"
side position, the hex-socket rotates counter-
clockwise, and can be used to loosen and retract
screws.
CAUTION
Never change the direction of hex-socket rotation
while the motor is running. To do so would seriously
damage the motor. Turn the power switch OFF before
changing the direction of hex-socket rotation.

MAINTENANCE AND INSPECTION

1. Inspecting the hex-socket (or bit)
Since continued use of a worn hex-socket (bit) will
damage screw heads, replace the hexsocket (bit) with
a new one as soon as excessive wear is noticed.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure
that they are properly tightened. Should any of the
screws be loose, retighten them immediately. to do
so could result in serious hazard.
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