8
2.3 Maintenance
The grinding machine must be placed in a dry place to avoid the grinding wheels
getting moist from damp or rain.
The grinding wheel often gets uneven during use and therefore we recommend
that you dress the grinding wheel regularly. When the grinding wheel is worn more
than 25%, we recommend that you change it. An uneven grinding wheel causes
vibrations which with time destroys the bearings in the machine.
Damaged tool rests, eye shields and covers must be replaced immediately to
avoid personal injuries.
When the grinding wheel is to be replaced first the spark arrester (A) (see fig.: 2.1)
is dismounted and then the outer cover (B) is removed. The nut (C) is unscrewed
and the outer flange and the grinding wheel are removed. The new grinding wheel
is not to exceed the measures given on the motor sign on the machine. It is
important that the hoe dimension is correct.
The grinding wheels are supplied with labels placed around the holes on both
sides of the grinding wheel. If these labels are missing or damaged they must be
replaced by labels of the same dimensions immediately.
The new grinding wheel is mounted between the two flanges (D) and the nut (C) is
screwed back on and tightened. The nut (C) must be tightened enough to hold the
grinding wheel firmly tightened but not too tight as this will cause unwanted
tensions in the grinding wheel.
Fig.: 2.1
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