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15
ⅷ Do not walk about with the power tool hanging from the waist belot.
ⅷ In the case of operation in a high place, it is dangerous to drop the tool accidentally. If
the hook is deformed or hung from the wrong position, there is danger that the hook will
slip off and the tool will fall.
Be careful to avoid danger.
ⅷ In making a through hole, the power tool sometimes shakes violently when the
workpiece is pierced, from example. Be careful you are not hurt by the hook even if such
situation happens.
HOW TO USE
CAUTION:
To prevent accidents, make sure to turn the switch off and disconnect the plug from the
receptacle when the drill bits and other various parts are installed or removed. The
power switch should also be turned off during a work break and after work.
1. Switch operation
⅜ When the trigger switch is depressed, the tool rotates. When the trigger is released, the
tool stops.
⅜ The rotational speed of the drill 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.
⅜ Pulling the trigger and pushing the stopper, it keeps the switched-on condition which is
convenient for continuous running. When switching off, the stopper can be disconnected
by pulling the trigger again.
2. Electric brake (D13VF and D13VG)
When releasing the trigger of the switch, the brake will be applied for immediate
stopping.
CAUTION:
ⅷ As there is some reaction when the brake functions, sure to hold the drill securely.
ⅷ When the brake becomes ineffective, send the tool to a HITACHI AUTHORIZED SERVICE
CENTRE.
3. Drilling
⅜ When drilling, start the drill slowly, and gradually increasing speed as you drill.
⅜ Always apply pressure in a straight line with the bit. Use enough pressure to keep drilling,
but do not push hard enough to stall the motor or deflect the bit.
⅜ To minimize stalling or breaking through the material, reduce pressure on drill and ease
the bit through the last part of the hole.
⅜ If the drill stalls, release the trigger immediately, remove the bit from the work and start
again. Do not click the trigger on and off in an attempt to start a stalled drill. This can
damage the drill.
⅜ The larger the drill bit diameter, the larger the reactive force on your arm.
Be careful not to lose control of the drill because of this reactive force.
To maintain firm control, establish a good foothold, use side handle, hold the drill tightly
with both hand, and ensure that the drill is vertical to the material being drilled.