4
mended that you wear a dust mask and thickly
padded gloves.
4. Be sure the bit is secured in place before opera-
tion.
5. Under normal operation, the tool is designed to
produce vibration. The screws can come loose
easily, causing a breakdown or accident. Check
tightness of screws carefully before operation.
6. In cold weather or when the tool has not been
used for a long time, let the tool warm up for a
while by operating it under no load. This will
loosen up the lubrication. Without proper warm-
up, hammering operation is difficult.
7. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
8. Hold the tool firmly with both hands.
9. Keep hands away from moving parts.
10. Do not leave the tool running. Operate the tool
only when hand-held.
11. Do not point the tool at any one in the area when
operating. The bit could fly out and injure some-
one seriously.
12. Do not touch the bit or parts close to the bit
immediately after operation; they may be
extremely hot and could burn your skin.
13. Some material contains chemicals which may be
toxic. Take caution to prevent dust inhalation
and skin contact. Follow material supplier safety
data.
SAVE THESE INSTRUCTIONS

WARNING:

MISUSE or failure to follow the safety

rules stated in this instruction manual

may cause serious personal injury.

SYMBOLS
USD202-2
The followings show the symbols used for tool.
V............................volts
A...........................amperes
Hz..........................hertz
..................alternating current
.......................no load speed
.......................Class II Construction
.../min...................revolutions or reciprocation per
minute
..................number of blow
FUNCTIONAL DESCRIPTION
CAUTION:
•Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.

Switch action

CAUTION:
•Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the “OFF” position when released.
For model HR2450F/HR2450/HR2451
To start the tool, simply pull the switch trigger. Tool speed
is increased by increasing pressure on the switch trigger.
Release the switch trigger to stop. For continuous opera-
tion, pull the switch trigger and then push in the lock but-
ton. To stop the tool from the locked position, pull the
switch trigger fully, then release it.
For model HR2452
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.

Lighting up the lamps

For model HR2450F only
1. Switch trigger
2. Lock button
1. Lamp
12
001292
1
003572