Berner BBG 150 Instrucciones De Manejo página 6

(EN)
have a clear high tone.
• When new grinding wheels have been fitted the machine must be run for a trial period of approx. 5 min at full
operation speed. During this trial run the danger zone must be cleared.
After trial run there has to be a visual control and tone control.
• It is not allowed to bore the central hole of the grinding wheels.
• The grinding wheels must be maintained at running true. Suitable and secure dressing tools must be kept avail
able for trimming grinding wheels which have come out of centre.
• For dressing the grinding wheels it is only allowed to use permissible dressing tools. Do not trim the grinding
wheels. Please wear suitable protection glasses and protect the dressing tools.
For dry dressing use dust extractors.
• Grinding machines designed for straight grinding must never be used for grinding on the sides. Side grinding
on straight grinding wheels invariably gives rise to unequal wear because the grinding wheels get different wall
strength and exceptionally strong vibration and premature destruction of the bearings cannot be prevented.
• Grinding and polishing of aluminium parts and its alloys
Raised aluminium and magnesium dust can cause explosions, if there is an ignition source, like sparks or a
burning cigarette.
Hence it is necessary to exhaust the grinding dust with a seperate extraction system and to prevent deposition
of dust in the tubes.
Alternating grinding of spark arcing and non spark arcing materials is only permitted on especially furnished
grinding equipment. The grinding equipment must be provided with seperate grinding areas and extraction
systems for the different dusts. In addition particular maintenance and purging intervals have to be observed.
Grinding equipment for alternating grinding must be flagged accordingly.
Information on particular protective measures necessary for the grinding of aluminium and its alloys can be
given at the competent offices of Technical Control of the respective German employer´s lisbility insurance as
sociations. Details can also be viewed in the "Richtlinien zur Vermeidung der Gefahr von Staubbränden und
Staubexplosionen beim Schleifen, Bürsten und Polieren von Aluminium und seinen Legierungen" (guidelines
for reporting the dangers of dust fires and dust explosions when grinding, brushing or polishing aluminium and
its alloys) (ZH 1/32).
3.0 Delivery
Please inspect your shipment for completeness and damages!
- spark guard for both sides,
- one grinding wheel coarse grained, one grinding wheel fine grained, - grinding machine with switch and power
cable, - operation instructions.
Should the machine arrive in a damaged state, please contact the shipper responsible for transport of the machine
(trucking company, rail transport company etc.)
4.0 Setting to work
Before setting the grinding machine to work you have to control the grinding wheels. Therefore the grinding wheels
must be removed from the machine.
- Remove both hoods, the left hood and the right hood,
- unscrew the two spindle nuts,
- remove the two grinding wheels.
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