AL-KO SOLO 643 IP Betriebsanleitung Seite 45

8. MAINTENANCE AND STORAGE
– Check that the limiter tooth does not stick out
further than the inspection instrument and file
any projecting parts with a flat file, rounding
off the edge.
– After sharpening, remove all traces of filing
and dust and lubricate the chain in an oil bath.
Replace the chain whenever:
– The length of the cutting edges reduces to 5
mm or less;
– There is too much play between the links and
the rivets.
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