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Stihl TS 420 Instruction Manual

Stihl TS 420
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TS 410, TS 420
English
16
An excessively high radial run-out
deviation(A) overloads individual
diamond segments, which overheat in
the process. This can lead to stress
cracks in the parent wheel or to
annealing of individual segments.
Deviations in axial run-out(B) result in
higher thermal loading and wider cuts.
Undercut
Do not cut into the base course
(frequently chipped 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 shattering!
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 diamonds and blunts the
segments.
Built-up edges can form:
when cutting extremely hard
materials, e.g., granite
with incorrect handling, e.g.,
excessive feed effort
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
compromised 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!

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Stihl TS 420 Specifications

General IconGeneral
Engine Power4.4 bhp
Weight21.2 lbs
Arbor Size20 mm
Maximum Wheel Size350 mm
Maximum Cutting Depth125 mm
Displacement66.7 cc (4.1 cu. in.)
Fuel Capacity710 cc

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