L&G Tools and Machinery User Manual
10
Do not use discs that are larger than specified; only use discs that are rated for the angle
grinder. The rotational speed (RPM) shown on the disc should always be HIGHER than the
rotational speed (RPM) of the angle grinder.
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 onto 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 bonded
wheels (resin, shellac, rubber) will stand rough handling. As the wheel wears down in use,
the effective peripheral surface speed will reduce if the rotational speed remains
constant and may result in a reduced grinding efficiency. To make sure the machine
work smoothly, the wheel should be replace with the maximum size less than 80 mm.
7. TECHNICAL SPECIFICATIONS
SPECIFICATIONS
POWER INPUT
2200 W
VOLTAGE
230 V / 50Hz
NO LOAD SPEED
6000 RPM
MAX CUTTING DEPTH
67 MM
DISC DIAMETER
230 MM
SPINDLE SIZE
M14
