3
Additional Specific Safety Rules
• Check that the grinding wheel backing flange has a yellow rubber ring (S)
installed, see Figure 1. Replace rubber ring if missing, damaged or worn.
See page 8 for details regarding proper accessory installation.
WARNING:
The grinding wheel or accessory may loosen during coast-down of
the tool when shut off if rubber ring is missing or damaged.
If grinding wheel
or accessory loosens, it may dismount from the machine and may cause
serious personal injury.
•
Always use proper guard with grinding wheel.
A guard protects operator from
broken wheel fragments and wheel contact.
•
Accessories must be rated for at least the speed recommended on the tool
warning label.
Wheels and other accessories running over rated speed can
fly apart and cause injury. Accessory ratings must be above listed minimum
wheel speed as shown on tool nameplate.
•
Hold tool by insulated gripping surfaces when performing an operation where
the cutting tool may contact hidden wiring or its own cord.
Contact with a
“live” wire will make exposed metal parts of the tool “live” and shock the
operator.
•
Do not use Type 11 (flaring cup) wheels on this tool.
Using inappropriate
accessories can result in injury.
•
ALWAYS WEAR EYE PROTECTION WHEN USING THIS TOOL.
•
Use of accessories not specified in this manual is not recommended and may
be hazardous.
Use of power boosters that would cause the tool to be driven
at speeds greater than its rated speed constitutes misuse.
•
Do not use circular saw blades or any other toothed blades with this tool.
Serious injury may result.
•
When starting the tool with a new or replacement wheel, or a new or
replacement wire brush installed, hold the tool in a well protected area and
let it run for one minute.
If the wheel has an undetected crack or flaw, it
should burst in less than one minute. If the wire brush has loose wires, they
will be detected. Never start the tool with a person in line with the wheel.
This includes the operator.
•
Avoid bouncing the wheel or giving it rough treatment.
If this occurs, stop the
tool and inspect the wheel for cracks or flaws.
•
Direct sparks away from operator, bystanders or flammable materials.
Sparks
may be produced while cutting and/or grinding. Sparks may cause burns or
start fires.
•
Always use side handle. Tighten the handle securely.
The side handle should
always be used to maintain control of the tool at all times.
•
Never cut into area that may contain electrical wiring or piping.
Serious injury
may result.
•
Clean out your tool often, especially after heavy use.
Dust and grit containing
metal particles often accumulate on interior surfaces and could create an
electric shock hazard.
•
Do not operate this tool for long periods of time.
Vibration caused by the
operating action of this tool may cause permanent injury to fingers, hands,
and arms. Use gloves to provide extra cushion, take frequent rest periods,
and limit daily time of use.
•
Direct the Dust Ejection System (DES) away from operator and coworkers.
Serious injury may result (Fig. 1, K).
Causes and Operator Prevention of Kickback
• Kickback is a sudden reaction to a pinched, bound or misaligned wheel, wire
brush or flap disc causing an uncontrolled cut-off tool to lift up and out of the
workpiece toward the operator.
• When the wheel is pinched or bound tightly by the workpiece, the wheel stalls
and the motor reaction drives the unit rapidly back toward or away from the
operator.
• Kickback is the result of tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precautions as given below:
•
Maintain a firm grip with both hands on the unit and position your body and
arm to allow you to resist kickback forces.
Kickback forces can be controlled
by the operator, if proper precautions are taken.
•
When wheel is binding, or when interrupting a cut for any reason, release the
trigger and hold the unit motionless in the material until the wheel comes to a
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