General Power Tool
Safety Warnings
(Cont’d.)
2. Use only accessories that are
recommended by the manufacturer
for your model. Accessories suitable
for one tool may create a risk of
injury when used on another tool.
3. Some wood contains
preservatives which can
be toxic. Take extra care
to prevent inhalation and
skin contact when
working with these materials.
Request and follow all safety
information available from your
material supplier.
SERVICE
Have
your
power tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that
the safety of the power tool is main-
tained.
Assembly
Always unplug the tool and place the
switch in the locked or off position
before making any assembly,
adjustments, or changing accessories.
Such preventive safety measures
reduce the risk of starting the tool
accidentally.
CHUCK
Follow these instructions when
changing bits or adjusting the chuck.
1. Unplug the tool.
2. Open the chuck jaws wide enough
to insert a bit. Allow the bit to strike
the bottom of the chuck. Center the
bit in the chuck jaws and tighten the
jaws by hand to align the bit.
3. Place the chuck key into each of the
three holes in the chuck, turning it
clockwise to tighten the chuck
securely.
NOTE:
Never use a wrench or means
other than a chuck key to tighten or
loosen the chuck.
4. To remove the bit, unplug the tool,
insert the chuck key into one of the
holes in the chuck and turn it
counterclockwise.
Be sure that the shank of the bit and the
chuck jaws are clean. Dirt particles may
cause the bit to line up improperly. Do
not use bits larger than the maximum
recommended capacity of the drill
because gear damage or motor
overloading may result. For best
performance, be sure that the bits are
properly sharpened before use.
To
prevent
personal injury, always remove the
chuck key from the chuck after each use.
ADJUSTING THE SIDE HANDLE
To reduce
the risk
of injury, always use a side handle when
using this tool. Always brace or hold
securely.
1. Unplug the tool.
2. Loosen the side handle by
unscrewing the side handle grip until
the side handle rotates freely.
3. Rotate the side handle to the desired
position.
4. Tighten the side handle grip
securely.
DEPTH ROD
To adjust the depth rod, loosen the
handle and move rod so that the
distance between the end of the rod
and the end of the bit equals the
desired drilling depth. When drilling
with depth rod, stop when end of rod
reaches surface of material.
Pre-Operation
SETTINGS
Hammer drills have two settings:
drilling and hammer-drilling.
1. For drilling, turn the
hammer/drill lever towards
the drill symbol.
2. For hammer-drilling, turn the
hammer/drill lever towards the
hammer symbol .
NOTE:
To engage the hammering
mechanism, maintain pressure on the
bit. When pressure on the bit is
released, the hammering action will
stop.
USING FORWARD/REVERSE
The forward/reverse lever can only be
adjusted when the trigger is not
pressed. Always allow the motor to
come to a complete stop before using
the forward/reverse lever.
1. For forward (clockwise) rotation,
push the forward/reverse lever to
the left (when viewed from the
back of the tool).
2. For reverse (counterclockwise)
rotation, push the forward/reverse
lever to the right (when viewed
from the back of the tool). Allow
the motor to come to a full stop
before reversing.
NOTE:
When hammer-drilling, use the
tool in forward rotation (clockwise)
only.
NOTE:
The hammer/drill lever must be
in either drill, or hammer-drill mode at
all times. There are no operable
positions between the two.
Operation
Safety glasses and ear pro-
tection must be worn during
operation.
Make
sure
work is held securely in vise or
clamped in place prior to starting oper-
ation. Loose work may spin and cause
bodily injury.
HAMMER-DRILLING OPERATION
Always unplug the drill when attaching
or changing bits or accessories.
There is
a tremen-
dous and sudden twisting force exerted
on the tool/bit at the time of hole
break-through, when the hole becomes
clogged with chips and particles, or
when striking reinforcing rods embed-
ded in the concrete. Always use the
side grip (auxiliary handle) and firmly
hold the tool by both side grip and
switch handle during operations.
Failure to do so may result in the loss
of control of the tool and potentially
severe injury.
When drilling in concrete, granite, tile,
etc., move the hammer/drill lever to the
hammer-drill setting. Be sure to use a
tungsten-carbide tipped bit. Use sharp
drill bits only.
Position the bit at the desired location
for the hole, then pull the switch
trigger. Do not force the tool. Light
pressure gives best results. Keep the
tool in position and prevent it from
slipping away from the hole.
Do not apply more pressure when the
hole becomes clogged with chips or
particles. Instead, run the tool at an
idle, then remove the bit partially from
the hole. By repeating this several
times, the hole will be cleaned out and
normal drilling may be resumed.
DRILLING OPERATION
Always unplug the drill when attaching
or changing bits or accessories. Use
sharp drill bits only. When drilling in
4
www.chpower.com
Operating Instructions and Parts Manual
