Form ZCE731B
2
Date
2020March30/K
Grinding metals creates sparks that can ignite flammable materials and vapors.
Only grind metals if the area is free of combustible or explosive materials or vapors.
Explosions and fire can cause injury.
Grinding wheels that malfunction or spin off can cause injury.
Overspeeding wheels can explode.
Check the speed of the tool regularly with a tachometer. These checks should be done without any mounted accessories. If the
tachometer reads faster than the rated speed of the tool, discontinue use. Check the speed rating of the accessory or the speed
printed on the wheel. This speed must be greater than the nameplate speed of the grinder and the actual speed of the grinder as
measured with a tachometer. Do not exceed rated operating air pressure.
Exploding wheels can cause injury or death.
Excessive overhang reduces the safe operating speed of mounted wheels, causes wheels to “whip”, and shafts to bend.
When using die grinders, keep overhang to a minimum. Refer to enclosed “SAFETY GUIDE FOR SIOUX ABRASIVE WHEEL” for
speed and overhang information.
“Whipping” wheels and bent shafts can cause injury.
Die grinders can generate unexpected movement.
Keep a firm grip on the tool at all times. Be sure your body position allows you to have control of the tool at all times. Make sure
your footing is secure. When possible, secure the work piece in a vice or with clamps.
Unexpected tool movement can cause injury.
Using excessive force on a tool makes it hard to control.
Do not force tool.
Hard to control tool can cause injury.
Taping or wiring the throttle valve in the “ON” position will prevent the tool from shutting off if the tool should jam or malfunction or if
anything unexpected happens.
Do not wire or tape down the “On-Off” valve of any power tool.
Tools that are prevented from shutting off can cause injury.
Poorly maintained and lubricated tools can fail unexpectedly.
Keep tool properly lubricated and in good repair at all times. Use only Sioux Air Motor Oil No. 288. See the tool’s information
sheet to find out what other greases and oils to use. Do not drop the end of the hose on the floor where it will pick up dirt and
transport it into the tool. See information sheet for any additional maintenance requirements.
Unexpected tool failures can cause injury.
Damaged grinding wheels can explode.
Check the wheel for damage before mounting, such as chips and cracks. Handle wheels carefully to avoid dropping or bumping.
Protect wheels from extremes of temperature and humidity. Check wheels immediately after any unusual occurrence that may
damage wheels. Check wheels daily. Hold tool under bench or provide other protection when starting up a new wheel, a used
wheel that has been remounted, or at the beginning of an operation. Run at operating speed in this protected area for at least
one minute before applying to the work. No one shall stand in front of or in line with the wheel during this test.
Exploding wheels can cause serious injury or death.
Collets, nuts and related equipment in poor shape or not the proper ones for the wheel or tool used can cause wheels to malfunction.
Grinding wheels not properly tightened can spin off.
Be certain that all collets, nuts and related equipment are in good shape, the proper ones for the type and size of wheel being
used, and are securely fastened. Tighten collet securely. Match wheel or accessory shaft diameter to chuck or collet.
Grinding wheels that malfunction and spin off can cause injury.
Air hoses can come loose from power tools and whip.
Inspect and do not use tools with loose or damaged air hoses or fittings.
Whipping air hoses can cause injury.
Abnormal sounding or excessively vibrating grinders can indicate a hazard that could cause wheel to explode.
If the normal sound of the grinder changes, or if it vibrates excessively, shut it off immediately, remove the wheel, and check
speed with tachometer. Tool could be overspeeding or the wheel could be damaged or not mounted properly.
Exploding wheels can cause injury or death.
Air hoses that are not oil resistant or are not rated for the working pressure can burst.
Make sure that all air hoses are oil resistant and rated for the working pressure.
Air hoses that burst can cause injury.
Tools not operated at proper air pressure can operate erratically.
Do not exceed a maximum air pressure of 90 psig/6.2 bar or as stated on the tool’s nameplate or operating instructions. Use an
air regulator to maintain proper air pressure.
Erratic operation in power tools can cause injury.
Improperly repaired tools perform unpredictably.
Do not modify this tool. Modifications can reduce the effectiveness of safety measures and increase the risks to the operator.
Do not use the tool if it has been damaged. Repair tools at an Authorized Sioux Service Center.
Tools that perform unpredictably can cause injury.
Tools left connected to the air supply can start unexpectedly.
Always remove tool from air supply and activate trigger to bleed air line before making any adjustments, changing accessories,
or doing any maintenance or service on tool. Make it a habit to check to see that all adjusting keys and wrenches have been
removed from tool before turning it on.
Tools starting unexpectedly and flying keys and wrenches can cause injury.
Working in poorly lit areas makes it hard to see hazards.
Keep work area well lit.
Poorly lit work areas can cause injury.
Children are attracted to work areas.
Keep children away. All visitors must keep a safe distance away from work area.
Children in work areas can be injured.
Unauthorized or untrained personnel can misuse unattended tools.
Store idle tools in a dry, high or locked-up place, out of the reach of children.
Misused tools can cause injury.
Air under pressure can cause severe injury.
Never direct air at yourself or anyone else. Cold air such as exhaust air should always be directed away from the hands. Never
carry a tool by its hose.
Whenever universal twist couplings (claw couplings) are used, lock pins shall be installed and whip check safety cables shall be used to
help prevent possible hose-to-tool and hose-to-hose failure.
