5
OPERATION
WARNING
To reduce the risk of injury, always
wear proper eye protection marked
to comply with ANSI Z87.1.
Always remove battery pack before changing
or removing accessories. Only use accessories
may be hazardous.
Keep hands away from the bit and moving parts.
Always use a side handle when using this tool.
Always brace or hold securely.
Selecting Action
1. Hammering with rotation. Use this
setting for drilling holes with drill bits.
2. Hammering only. For use with
“hammering-only” accessories. Use
this setting for chiseling or setting
self-drilling anchors.
3. Chisel adjustment. Use this setting
to adjust the angle of the chisel
blade in relation to the tool. With a
chisel mounted in the tool:
•
turn the knob to this setting
•
rotate the chisel to the desired
angle
•
turn the knob to "hammering-only".
NOTE:
To engage the hammering mechanism, main-
tain pressure on the bit. When the pressure on the bit
is released, the hammering will stop.
Starting and Stopping
1. To
start
the trigger.
2. To
stop
the tool, release the trigger. Make sure
the tool comes to a complete stop before laying
the tool down.
Operating
the trigger. Always hold the tool securely using both
handles to maintain control. This tool has been de-
signed to achieve top performance with only moder-
ate pressure. Let the tool do the work.
If the speed begins to drop off when drilling large or
deep holes, pull the bit partially out of the hole while
the tool is running to help clear dust. Do not use water
tend to make the bit bind in the hole. If the bit should
bind, a built-in, non-adjustable slip clutch prevents
the bit from turning. If this occurs, stop the tool, free
the bit and begin again.
NOTE:
The tool will shut off and service indicator
through the trigger to continue operating.
WARNING
Applying greater pressure does not
increase the tool's effectiveness.
If the applied working pressure is too high, the
shock absorber will be pushed together making
the vibrations to the handle noticeably stronger.
Operator Force
The Anti-Vibration System provides the operator with
Ideal operator force compresses the bellows slightly
and allows the tool to work aggressively while the
handle remains steady.
and reduces vibration dampening. Users will be able
to feel the difference and should adjust the force to
the handle accordingly.
Too little
Correct
Too much
force
force
force
Cold Starting
If this tool is stored for a long period of time or
at cold temperatures, it may not hammer ini-
tially because the lubrication has become stiff.
To warm up the tool:
1. Insert and lock a bit or chisel into the tool.
2.
Pull the trigger and apply force to the bit or chisel
against a concrete or wood surface for a few
seconds. Release the trigger
1. Clean and lubricate the
threads on the adapter
and core bit to make
later removal easier.
Thread the adapter
shank to the rear of the
core bit.
2.
NOTE:
If using an extension, first thread the
adapter shank to the extension. Then thread the
core bit to the extension.
3. Insert the adapter into the nose of the tool as
described in “Installing Bits and Chisels”. Set the
knob to the "hammering with rotation" setting.
When working in dusty situations, wear
appropriate respiratory protection or use dust
extraction solution.
These
MILWAUKEE
®
Rotary
Hammers have three settings:
hammering with rotation,
hammering-only, and chisel
adjustment.
Push the guide plate
onto the pointed end of
the centre pin. Insert
the centre pin and
guide plate assembly
into the core bit. Be
sure the small end of
the centre pin is
securely placed into
the hole in the centre of
the core bit. For LHS
systems, screw the threaded end of the centring
bit into the core bit.
3. Repeat until the tool starts hammering. The colder
the tool is, the longer it will take to warm up.
Using Rotary Percussion Core Bits
Core Bits are useful for drilling large or long holes in
concrete.
MILWAUKEE
®
Heavy-Duty Core Bits
have heat-treated steel bodies with durable carbide
tips. These core bits are specially designed for fast,
accurate drilling with combined hammering and
rotary action.
