5
13. Do not touch the bit or parts close to the bit
immediately after operation; they may be
extremely hot and could burn your skin.
14. Do not operate the tool at no-load
unnecessarily.
15. 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:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product.
MISUSE or failure to follow the safety rules stated in
this instruction manual may cause serious personal
injury.
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 lever actuates properly and returns
to the "OFF" position when released.
1
015520
To start the tool, simply squeeze the switch lever.
Release the switch lever to stop.
For model HM1812 only
NOTE:
• Blows at no load per minute becomes smaller than
those on load in order to reduce vibration under no
load, but this does not show trouble. Once
operation starts with a bit against concrete, blows
per minute increase. When temperature is low and
there is less fluidity in grease, the tool may not
have this function even with the motor rotating.
Indicator lamps
1
2
015521
The green power-ON indicator lamp lights up when the
tool is plugged. The indicator lamp is lit but the tool does
not start even if the tool is switched on, the carbon
brushes may be worn out, or the controller, the motor or
the ON/OFF switch may be malfunction.
1. Power-ON
indicator lamp
(green)
2. Service
indicator lamp
(red)
1. Switch lever
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General
Weight and Dimensions
