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4
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
USD203-2
The followings show the symbols used for tool.
V............................volts
A ...........................amperes
Hz..........................hertz
..................alternating current
....................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 tool is switched off.
• Switch can be locked in “ON” position for ease of
operator comfort during extended use. Apply cau-
tion when locking tool in “ON” position and maintain
firm grasp on tool.
To start the tool, push the switch lever on the left side of
the tool. To stop the tool, push the switch lever on the
right side of the tool.
Speed change
For HM1100C only
The blows per minute can be adjusted just by turning the
adjusting dial. This can be done even while the tool is
running. The dial is marked 1 (lowest speed) to 5 (full
speed).
Refer to the table below for the relationship between the
number settings on the adjusting dial and the blows per
minute.
CAUTION:
• The speed adjusting dial can be turned only as far
as 5 and back to 1. Do not force it past 5 or 1, or the
speed adjusting function may no longer work.
1. Switch lever
1. Adjusting dial
1
002888
1
002895
Number
on adjusting dial
5
4
3
2
1
Blows
per minute
2,650
2,350
1,950
1,550
1,300
002896