Operation - Milwaukee 5327-21 Operator's Manual

To reduce the risk of injury, wear safety goggles
or glasses with side shields.
before changing accessories or making adjust-
m e n t s .
This hammer has an Electronic Feedback Control Circuit (EFCC) which
helps improve the operation and life of the tool.
Soft Start
The Soft-Start feature reduces the amount of torque reaction to the tool
and the user. This feature gradually increases the motor speed up from
zero to the speed set by the speed control dial.
Feedback Control
The electronic speed control system allows the tool to maintain constant
speed between no-load and load conditions.
To reduce the risk of injury, wear safety
goggles or glasses with side shields.
Starting and Stopping the Tool
1. To start the tool, pull the trigger. Press the chisel against the work-
piece to begin the impacting. When the chisel is removed from the
workpiece, the impacting will stop.
3. To stop the tool, release trigger.
4. For continuous running, pull the trigger and then press in the trigger
lock lever.
5. To release the trigger lock lever, pull the trigger. The lock lever will
release. Then, release the trigger.
Cold Starting
If this tool is stored for a long period of time or at cold temperatures, it
may not hammer initially because the lubrication has become stiff.
To warm up the tool:
1. Insert and lock a chisel into the tool.
2. Turn on the tool, applying force to the chisel against concrete or
other work surface.
3. Turn the tool on and off every few seconds. In a short time, the tool
will start hammering. The colder the tool is, the longer it will take to
warm up.
page 6
WARNING!
Unplug the tool
WARNING!

OPERATION

Chiseling and Chipping
When chiseling, hold the tool at an angle to the workpiece. Work from a
corner or close to the edge of the workpiece, breaking off one small area
at a time rather than attempting too large an area.
A variety of accessories are available.
Bushing Tools
Used to surface concrete.
Mortar Cutting Chisels (Seam Tools)
For removing old mortar for tuck pointing or
caulking.
Bull Points
For demolition work and starting holes in
concrete slabs.
Flat Chisels
For edging, chipping or channeling.
Scaling Chisels
For removing weld spatter or scale and
cutting straight lines.
Slotting Chisel
For slotting and cutting between drilled holes
in concrete and masonry.