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CAUTION
Never change the direction of bit rotation while operating. Turn the power switch OFF
before changing the direction of bit rotation: otherwise, burning of the motor will
result.
Always use the hammer drill with clockwise rotation, when using it as an hammer
drill. (Fig. 10)
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. Operation of switch
The drill speed can be adjusted from O through full speed by regulating the trigger-
squeezing force. The more the trigger is squeezed, the faster the drill rotates. When the
trigger is squeezed fully, the speed is the maximum.
Pulling the trigger and pushig 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. When using as a Drill or a Hammer Drill
(1) Pressing force of the drill
You cannot drill holes more quickly even if you press the drill with a stronger force than
necessary. It not only damages tip of drill bits and decreases the efficiency of operation,
but also shortens the life of the drill.
(2) In case of penetrating holes
Drill bits can be broken when the material being drilled is penetrated. It is important to
decrease pressing force just before penetrating.
CAUTION
In continuous operation, conduct no-load operation for five seconds after completing a
drilling job.
(3) When a thick drill bit is used
Your arm is subjected to larger reaction force when a thicker drill bit is used. Be careful
not to be moved by the reaction force. For this, establish a foothold, hodl the unit tightly
with both hands perpendicularly to the material being drilled.
Reversing
switch lever
Fig. 9
English
Fig. 10
13
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