Before Use; Operation - Hitachi DN 10DY Instruction And Safety Manual

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.

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. Mounting and dismounting the bit
Ring
Sleeve
Fig. 11
(2) Dismounting the bit.
Firmly grasp the ring and loosen the sleeve by turning it toward the left (in the
counterclockwise direction as viewed from the front). (See Fig. 11)
CAUTION: When mounting a bit into the keyless chuck, tighten firmly.
If the sleeve is not tight, the bit may slip or fall out, causing injury.
2. Check the attachment of the battery.
CAUTION: Install the battery properly.
If not installed properly, it may fall out of the power tool and cause danger.
Tighten
Loosen
(1) Mounting the bit
Insert a screwdriver bit etc. into the keyless drill
chuck.
Firmly grasp the ring and tighten the sleeve by
turning it toward the right (in the clockwise direc-
tion as viewed from the front). (See Fig. 11)
NOTE:
If the sleeve becomes loose during operation, tighten
it further. The tihgtening force becomes stronger
when the sleeve is tihgtenend.
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