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WARNING
Release the switch trigger and let the coupler to come
to a complete stop.
7.3 ADJUST THE VARIABLE SPEED
Figure 7.
1. Increase the trigger pressure to make a higher
speed.
2. Decrease the trigger pressure to make a lower
speed.
7.4 ADJUST THE TWO-SPEED GEAR
TRAIN
Figure 8.
The machine has a two-speed gear train designed for
drilling or driving at LO (1) or HI (2) speeds. A slide
switch is on top of the machine.
1. When you use the machine in the LO (1) speed, the
speed decreases and the machine has more power
and torque.
2. When you use the machine in the HI (2) speed, the
speed increases and the machine has less power
and torque.
WARNING
Use LO (1) speed for high power and torque
applications and HI (2) speed for fast drilling or driving
applications.
7.5 ADJUST THE REVERSING
BUTTON
The machine has the reversing button (forward/reverse
lock) above the switch trigger to chang the direction of
the bit.
Figure 9 - 10.
1. When the reversing button is on the left side of the
switch trigger, the bit direciton is forward.
2. When the reversing button is on the right side of the
switch trigger, the bit direction is reversible.
3. Put the direction button in the OFF (center lock)
position to help decrease the possibility of
accidental start when not operate.
WARNING
Release the switch trigger and let the chuck to come
to a complete stop to stop the mahcine.
WARNING
Let the chuck to come to a complete stop before
changing the direction of rotation.
NOTE
The machine does not operate until the direction
button is pushed fully to the left or right.
7.6 DRILL MATERIALS
• When drilling hard, smooth surfaces, use a center
punch to mark the desired hole location. This can
prevent the drill bit from slipping off-center as the
hole is started.
•
When drilling metals, use a light oil on the drill bit to
keep it from overheating. The oil can prolong the life
of the bit and increase the drilling action.
• If the bit jams in the workpiece or if the drill falls,
stop to use the machine immediately. Remove the
bit from the workpiece and analysis the casuse of
the jam.
NOTE
This drill has an electric brake. When the switch
trigger is released, the chuck stops turning. When the
brake is functioning properly, sparks can be visible
through the vent slots on the housing. This is normal
and is the action of the brake.
WOOD DRILLING
For maximum performance, use high speed steel bits
for wood drilling.
1.
Operate the machine at a very low speed to prevent
the bit from slipping off the starting point. Increase
the speed as the drill bit bites into the material.
2. When drilling through holes, put a piece of wood
behind the workpiece to prevent ragged or
splintered edges on the back side of the hole.
METAL DRILLING
For maximum performance, use high speed steel bits
for metal or steel drilling.
1. Operate the machine at a very low speed to prevent
the bit from slipping off the starting point.
2. Hold a speed and pressure which let cut without
overheating the bit. Apply too much pressure can:
Overheat the drill; Wear the bearings; Bend or burn
bits; and Produce off-center or irregular-shaped
holes.
3. When drilling large holes in metal, start with a small
bit, then finish with a large bit. Also, lubricate the bit
with oil to improve drilling action and increase bit
life.
6
English
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