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9
Dust cup
1
001300
Use the dust cup to prevent dust from falling over the tool and
on yourself when performing overhead drilling operations.
Attach the dust cup to the bit as shown in the figure. The size
of bits which the dust cup can be attached to is as follows.
Bit diameter
Dust cup 5
6 mm (1/4") - 14.5 mm (9/16")
Dust cup 9
12 mm (15/32") - 16 mm (5/8")
006386
OPERATION
Hammer drilling operation
009679
Set the action mode changing knob to the
symbol.
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.
CAUTION:
•
There is a tremendous 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 embedded 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.
NOTE:
Eccentricity in the bit rotation may occur while operating
the tool with no load. The tool automatically centers itself
during operation. This does not affect the drilling
precision.
Blow-out bulb (optional accessory)
1
002449
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
009680
Set the action mode changing knob to the
symbol.
Hold the tool firmly with both hands. Turn the tool on and
apply slight pressure on the tool so that the tool will not
bounce around, uncontrolled. Pressing very hard on the
tool will not increase the efficiency.
Drilling in wood or metal
For Model HRH01
1
2
009682
1. Chuck adapter
2. Keyless drill
chuck
1. Blow-out bulb
1. Dust cup