General Safety Instructions - Chicago Pneumatic CP3750-085AA7 Mode D'emploi

Angle Grinder

General safety instructions

Additional safety information regarding portable air
tools:
• CAGI 2528 - B186.1, SAFETY CODE FOR POR-
TABLE AIR TOOLS, available from Global Engi-
neering Documents at https://global.ihs.com/ or call
+1 800 447-2273. In case of difficulty in obtaining
ANSI standards, contact ANSI via https://
www.ansi.org/
Air supply and connection hazards
• Air under pressure can cause severe injury.
• Always shut off air supply, drain hose of air pressure and
disconnect tool from air supply when not in use, before
changing accessories or when making repairs.
• Never direct air at yourself or anyone else.
• Whipping hoses can cause severe injury. Always check
for damaged or loose hoses and fittings.
• Do not use quick disconnect couplings at tool. See in-
structions for correct set up.
• Whenever universal twist couplings are used, lock pins
must be installed.
• Do not exceed maximum air pressure of 6.3 bar / 90
psig, or as stated on tool nameplate.
Wheel guard usage
• Always use the recommended wheel guard to reduce the
risk of injury from broken grinding wheel parts.
• If a guard has withstood a wheel breakage do not con-
tinue to use it. It may be damaged.
• Position the guard between the grinding wheel and the
operator.
• Use barriers to protect others from wheel fragments and
grinding sparks.
Entanglement hazards
• Keep away from rotating drive spindle and abrasive. Ro-
tation may continue for several seconds after the throttle
has been released. Do not lay the tool down until rotation
has stopped.
• Choking, scalping and / or lacerations can occur if loose
clothing, gloves, jewellery, neck ware and hair are not
kept away from tool and accessories.
Projectile hazards
• Failure of the accessory or abrasive, or of the workpiece,
can generate high-velocity projectiles. Grinding sparks
and even small projectiles can injure eyes and cause
blindness.
• Always wear impact-resistant eye and face protection
when involved with or near the operation, repair or
maintenance of the tool or changing accessories on the
tool.
• Be sure all others in the area are wearing impact-resis-
tant eye and face protection.
• A grinding wheel that bursts can cause very serious in-
jury or death.
• Daily measure the air grinder speed with a tachometer to
make sure that it is not greater than the RPM marked on
the grinding wheel.
• Never use a grinding wheel marked with a speed lower
than the air grinder speed.
• Ensure that the abrasive is securely clamped to the
grinder using the tools provided. Flanges must be free
from burrs and cracks and have flat clamping surfaces.
Spindles and spindle threads must not be damaged or
worn.
• Ensure that the workpiece is securely fixed.
Accessory hazards
• Always shut off air supply, relieve hose of air pressure
and disconnect tool from air supply when changing ac-
cessories.
• Use only recommended sizes and types of abrasives.
• Do not use chipped or cracked wheels, or wheels which
may have been dropped.
• Correct grinding wheel mounting is necessary to prevent
injury from broken wheels.
• Avoid mismatch between UNC and metric threads.
• Grinding wheels should be a free fit on the spindle to
prevent stress at the hole. Do not use reducing bushes to
fit large hole grinding wheels.
• Use only the flanges that come with the grinder for
mounting the grinding wheel. Flat washers or other
adapters may over stress the wheel. Always use heavy
paper blotter discs between the flanges and the grinding
wheel.
• If several flanges are supplied to fit different sizes and
types of abrasive, always fit the correct flange(s) for the
abrasive being used.
• When mounting cups, cones or plugs with threaded
holes, the spindle end must not contact the bottom of the
hole as it will stress the abrasive.
• Tighten the wheel on the spindle to prevent spin off
when the air grinder is turned off.
• Before grinding, test grinding wheel by briefly running
tool at full throttle. Be sure to use a barrier (such as un-
der a heavy work table) to stop any possible broken
wheel parts. Stop immediately if vibration is excessive.
Operating hazards
• Operators and maintenance personnel must be physically
able to handle the bulk, weight and power of the tool.
• Hold the tool correctly: be ready to counteract normal or
sudden movements – have both hands available.
• You can be cut or burned if you come into contact with
the accessory, grinding sparks or the work surface.
Avoid contact and wear protective equipment such as
gloves, apron and helmet.
• Avoid wheel jamming when cutting-off. Support the
workpiece on both sides of the cut line to prevent the
wheel becoming trapped. If jamming occurs, release the
throttle and ease the wheel free. Check the wheel is un-
damaged and properly secured before continuing.
• Never use cutting-off wheels for side grinding.
© Chicago Pneumatic - 6159929470
Safety Information
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