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For model HM1317CB 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 and get to the numbers as
shown in the table. When temperature is low and
there is less fluidity in grease, the tool may not
have this function even with the motor rotating.
CAUTION:
• The 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.
Indicator lamp
1
2
010285
The green power-ON indicator lamp lights up when the
tool is plugged. If the indicator lamp does not light up,
the mains cord or the controller may be malfunction. 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.
The red service indicator lamp flickers up when the
carbon brushes are nearly worn out to indicate that the
tool needs servicing. After approx. 8 hours of use, the
motor will automatically be shut off.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Side handle (auxiliary handle)
1
2
3
010286
The side handle can be swung 360° on the vertical and
secured at any desired position. Just loosen the clamp
nut to swing the side handle to a desired position. Then
tighten the clamp nut securely.
Installing or removing the bit
1
2
002928
This tool accepts bits either with or without a collar on its
shank.
(1) For bits with a collar
1
2
3
4
5
010293
To install the bit, follow either procedure (1) or (2)
described below.
Pivot the tool retainer back and slightly downward.
Insert the bit into the tool holder as far as it will go.
To securely retain the bit, return the tool retainer to
its original position.
1. Bit
2. Tool retainer
3. Tool holder
4. When the bit is inserted
5. When the bit is retained
1. Bit with collar
2. Bit without collar
1. Set bolt
2. Nut
3. Side handle
1. Power-ON
indicator lamp
(green)
2. Service indicator
lamp (red)