![background image](http://html1.mh-extra.com/html/stihl/ts-420/ts-420_original-instruction-manual_1379054016.webp)
Working safely with cut-off machines
English
14
Troubleshooting
Cutting wheel
Error
Cause
Remedy
ragged edges or cut surfaces, crooked
cut
Deviation in radial or axial run-out
Contact a servicing dealer
1)
heavy wear on the sides of the segments Cutting wheel gyrates
use a new cutting wheel
ragged edges, crooked cut, no cutting
performance, generation of sparks
Cutting wheel is dull; built-up edges with cut-
ting wheels for stone
Sharpen cutting wheels for stone by
briefly cutting through abrasive materials;
replace cutting wheel for asphalt with a
new one
poor cutting performance, high segment
wear
Cutting wheel is turning in the wrong
direction
Mount cutting wheel so that it turns in the
right direction
Breakdowns or tears in the parent wheel
and segment
Overloading
use a new cutting wheel
Undercut
Cutting in the wrong material
use new cutting wheel; observe separat-
ing layers of various materials
1)
STIHL recommends STIHL servicing dealers