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5
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.
For Model HM1213C 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.
Indicator lamp
1
2
009949
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
009945
The side handle can be swung 360° on the vertical and
secured at any desired position. It also secures at eight
different positions back and forth on the horizontal. Just
loosen the clamp nut to swing the side handle to a
desired position. Then tighten the clamp nut securely.
The side handle also can be mounted in the rear groove.
Loosen the clamp nut and widen the side handle base.
Slide the side handle back to the rear groove and secure
it with the clamp nut.
Installing or removing the bit
1
2
009664
Clean the bit shank and apply bit grease before installing
the bit.
Insert the bit into the tool. Turn the bit and push it in until
it engages.
1
009940
If the bit cannot be pushed in, remove the bit. Pull the
releasing cover down a couple of times. Then insert the
bit again. Turn the bit and push it in until it engages.
1. Side handle
2. Clamp nut
1. Power-ON
indicator lamp
(green)
2. Service indicator
lamp (red)
1. Bit shank
2. Bit grease
1. Releasing cover