Stihl TS 480i Notice D'emploi page 15

6 Diamond Abrasive Wheels
6.3 Undercut
Do not cut into the base course (frequently chip‐
ped stones and gravel) when cutting roadway
pavement – cutting in chipped stones and gravel
is revealed by light-colored dust – excessive
undercut may occur as a result – Danger of shat‐
tering!
6.4 Built-up edges, sharpen
Built-up edges take the form of a light gray
deposit on the tops of the diamond segments.
This deposit on the segments clogs the dia‐
monds and blunts the segments.
6.5 Troubleshooting
6.5.1 Abrasive wheel
Defects
ragged edges or cut surfaces,
crooked cut
heavy wear on the sides of the
segments
ragged edges, crooked cut, no
cutting performance, generation
of sparks
1)
STIHL recommends STIHL servicing dealers
0458-753-8221-D
Built-up edges can form:
– when cutting extremely hard materials, e. g.,
– with incorrect handling, e. g., excessive feed
Built-up edges increase vibration, reduce cutting
performance, and cause formation of sparks.
At the first signs of built-up edges, immediately
"sharpen" the diamond abrasive wheel – to do
this, briefly cut through abrasive material such as
sandstone, aerated concrete or asphalt.
Addition of water prevents the formation of built-
up edges.
If work continues with dull segments, these may
soften due to the high heat generated – the
parent wheel is annealed and its strength is com‐
promised – this can lead to stresses that are
clearly recognizable by gyrations of the abrasive
wheel. Do not continue to use the abrasive wheel
– Risk of accident!
Cause
Deviation in radial or axial run-out Contact a servicing dealer
Abrasive wheel gyrates
Abrasive wheel is dull; built-up
edges with abrasive wheels for
stone
granite
effort
Remedy
use a new abrasive wheel
Sharpen abrasive wheels for
stone by briefly cutting through
abrasive materials; replace
English
1)
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