CAUTION!
Check the diameter of disc regularly during use. If it is less than 80mm, replace it!
Working advice
After heavily straining the power tool, continue to run it at no-load for several
minutes to cool down the grinding tool.
Grinding discs become very hot while working; do not touch until they have
cooled.
Do not use the power tool with a cut-off stand.
For grinding:
Please always make sure grinding disk touch the workpieceatapproximately 15°
to 30º and move slowly.
WARNING
Don’t apply big pressure to the machine.
Best grinding results can be obtained by only a slight pressure on the tool;
Forcing and excessivepressure will damage the disk and cause serious
personalinjury.
Instruction for abrasive wheels and discs
Abrasive wheels should not be mounted on makeshift apparatus. They should be
mounted on the type of machine for which they are intended. These appear to be
obvious precautions, but accidents still occur because wheels are mounted on
home-made or improvised apparatus quite unsuitable for the work. Likewise,
accidents are caused by heavy wheels being fitted to spindles designed to take
only the lightest of wheels. As a result, vibration is excessive and breakages
occur. On no account should an abrasive wheel be screwed on to the tapered
spindle of a buffing machine. This dangerous method of mounting is likely to
result in the breaking of the wheel owing to the wedging action of the tapered
spindle.
The new wheels should be carefully unpacked, cleaned with a brush and
examined for possible damage in transit. In unpacking, the careless use of a tool
may cause damage to the wheel. The soundness of wheels can be further
checked by tapping them with a light, non-metallic implement. This is known as
the ‘ring’ test. Wheels must be dry and free from sawdust for the ring test
otherwise the sound will be deadened. It should also be noted that organic
bonded wheels do not emit the same clear metallic ring as inorganic bonded
wheels. Heavy wheels should be supported on a clean hard floor for the ring test
while light wheels should be suspended from their hole on a finger or small pin. If
the wheel sounds dead, for example due to cracking, it should not be used.
All abrasive wheels are relatively fragile. It should not be assumed that organic
