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18
CUTTING-OFF
& GRINDING
WHEELS
TECHNICAL INFORMATION
SAFETY ADVICE – DO’S
✓
DO
always handle and store wheels carefully. Cutting-off wheels should be stacked
horizontally and flat, preferably on a steel base plate. Depressed centre wheels should
be placed on top of each other or stored in the original packaging.
✓
DO
always visually inspect all wheels before mounting for possible damage
in transit.
✓
DO
always use a safety guard and ensure that it is correctly positioned and securely fitted.
lt should cover at least one half of the wheel and protect the operator in the unlikely
event of a wheel breakage. NON-REINFORCED CUTTING-OFF WHEELS SHOULD ONLY
BE USED ON FIXED MACHINES AND SHOULD BE CORRECTLY GUARDED.
✓
DO
always switch ‘OFF’ the power at supply source and/or remove the plug from the socket
before changing the wheel.
✓
DO
always use the tools supplied by the machine manufacturer to change
the wheel.
✓
DO
always ensure that the spindle speed of the machine does not exceed
the operating speed marked on the wheel.
✓
DO
always use the correct wheel mounting flanges and ensure that they
are undamaged, clean and free from burrs.
✓
DO
SEE EN 12413.
✓
DO
allow newly mounted wheels to run at operating speed, with the guard in place,
for a reasonable time before cutting or grinding.
✓
DO
always wear EYE PROTECTION.
✓
DO
always wear appropriate safety clothing such as DUST MASK,
GLOVES, EAR PROTECTION, OVERALLS AND SAFETY SHOES.
✓
DO
always have machine speeds checked regularly, especially after maintenance or repair.
Machines fitted with speed control devices (Governors), must be properly maintained
at all times.
✓
DO
check tension of driving belts, where fitted, on a regular basis.
Belts must be kept tight to ensure full power transmission.
✓
DO
always secure the workpiece firmly while it is being cut or ground.
✓
DO
put portable machines in suitable cradles, when not being used,
to avoid damage to the wheel.
✓
DO
always use a portable machine in a comfortable position, where
the workpiece is well balanced and the machine is well supported.
✓
DO
grind at an angle above 30 degrees to the workpiece with a depressed centre
grinding wheel.
✓
DO
keep the working area around cutting and grinding operations clear.
lt is very dangerous if an operator trips and falls with an operating
machine in his hands.