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.
Flanges and other related mounting 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 flanges and related mounting equipment are in good shape, the proper ones for the type and size of wheel
being used, and are securely fastened. Match wheel mounting hole to spindle size. Where grinding wheels are used with
reducing adapters or bushings, the user shall ensure that the adapter or bushing does not contact the face of the flange and
that the clamping force provides sufficient rotational driving action. Prevent the spindle end from touching the bottom of the
hole cups, cones, or plugs with threaded holes.
Grinding wheels that malfunction or 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. Use lock pins and whipcheck safety cables when using
universal twist couplings.
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.
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.
Tools with the actuator left in the "ON" position when an unexpected air pressure loss occurs can start unexpectedly when the air
pressure is restored.
Release the actuator if an unexpected loss of air pressure occurs.
Unexpected tool starts can cause injury.
Grinders with the actuator left in the "on" position can cause unexpected starts when the tool is connected to the air supply.
Be sure actuator is off before hooking up air.
Unexpected starts can cause injury.
Grinders may coast for a short time after the trigger is released.
Be sure tool has come to a complete stop before setting it aside.
Grinders that do not come to a complete stop before setting aside can cause injury.
The use of any accessory with this tool not provided or specified by Sioux Tools can perform unpredictably.
Use only accessories provided or specified by Sioux Tools.
Tools that perform unpredictably can cause injury.
Modifications to the grinder can effect tool performance and safety.
Do not modify the grinder. Do not operate the grinder if it has been modified or damaged. Periodically inspect grinder for
damage and to ensure all safety markings are legible.
Damaged or modified grinders can cause injury.
Be aware of workplace hazards.
Be aware of slippery surfaces caused by the use of the grinder. Avoid trip hazards caused by the air line. Proceed with care in
unfamiliar surroundings.
Workplace hazards can cause injury.
High noise levels can cause hearing damage. Vibration exposure can cause disabling damage.
Use hearing protection. Damping the workpiece may help prevent ringing. Keep grinder maintained to prevent an increase in
noise and vibration. Replace the consumable to prevent and increase in noise and vibration. Ensure the muffler is installed.
Wear warm clothing when working on cold conditions. Keep your hands warm and dry. Do not allow the abrasive wheel to
chatter on workpiece. Support the grinder in a stand, tensioner, or balancer if possible. Do not hold the grinder too tightly. Use
blotters where they are provided with the bonded abrasive product.
High noise and vibration can cause injury.
When disposing of a tool, do it in a way that does not harm personnel or the environment.
Form ZCE732D
2
Date 2021August18/X