User Manual

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that no items such as an electric cable or conduit are buried inside.
Wear protective shoes to protect your feet.
SPECIFICATIONS
Be sure to check the nameplate on product at it is subject to change by areas
STANDARD ACCESSORIES
1. Rotary hummer…………………………..1
2. Case …………………….………………..1
3. Carbon brushes…………………..………1
4. Manul….. ………………………………..1
5. Flat chisel ……………………..…………1
6. Wrench…………………………………...1
OPTIONAL ACCESSORIES (sold separately)
1. Cutter (for crushing asphalt)
2. Cold Chisel (for grooving and squaring)
APPLICATIONS
Crushing concrete, chipping, digging, and squaring.
(Application Examples)
Installation of piping and wiring, sanitary facility installation, machinery installation,
water supply and drainage work, interior jobs, harbor facilties and other civil engineering
work.
PRIOR TO OPERATION
1. Power source. Ensure that the power source to be utilized conforms to the power
requirements specified on the product nameplate.
2. Grounding. This tool should be grounded while in use to protect the operator
from electric shock. The tool is equipped with a three conductor cord and grounding type
plug to fit the proper grounding type receptacle. The green (or green and yellow)
conductor in the cord is the grounding wire. Never connect the green (or green and
yellow) wire to a live terminal.
3. Power switch. Ensure that the power switch is in the OFF position. If the plug is
connected to a power receptacle while the power switch is in the ON position, the power