ELDAN Recycling A/S Page 56
8.1 Maintenance directions
The below description should only be regarded as a guide line, be-
cause the values will depend on the spec ific type of input material
such as steel content, size of the input material and method of feeding
etc.
Besides the daily maintenance, a weekly maintenance for replacement
of knives etc. is recommended. Th is could for instance be in the
weekends.
ELDAN recommends as follows by processing of tyres:
- Tightening of knife bolts after 24 processing hours and then as re-
quired.
- Clean the screen and the rotor housi ng for steel wire after every 40
processing hours.
- Adjustment of knives.
1) the first time after approx. 8 processing hours
and
2) then after every 40 tons of input material or as required
It is important that the exchange of knives is not merely based on
the values stated in the manual. These values are only meant as
guide lines and the customer shoul d instead build up his own ex-
perience for the exchange of wear parts in reference to the specific
production. The maximum values must, however, not be exceeded.
Clean the rotor housing and the clearance between the side walls
for dust with a vacuum cleaner.
The water nozzles in the inle t hopper should be cleaned once a
week or as required.
The adjustment of knives is very important, because the bigger the
clearance between the knives is the more the knife costs will increase.
This means that when the distance between the knives is too big the
material is not cut but "grated", t he steel in the tyres is then drawn
down between the knives instead of being cut and this increases the
wear on the knives. It further means that the capacity is degressive
and the use of ampere is rising.
Further the fire risk w ill incr ease the bigger the clearance be-
tween the knives is, because the steel w ire w ill be pulled dow n
between the knives instead of bei ng cut. The steel w ire will then
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