TS 410, TS 420
English
9
cutting wheels of this type become wet, 
their cutting performance is reduced and 
they become dull. If composite resin 
cutting wheels of this type become wet 
while working (e. g., due to puddles or 
water in pipes), do not increase the 
cutting pressure, but continue working 
with the same pressure – risk of 
breakage! Wet composite resin cutting 
wheels must be used up immediately.
Cut-off machine cart
Clear a path for the cart. If the cart is 
pushed over objects, the cutting wheel 
may become wedged in the cut and 
shatter!
Vibrations
Prolonged use of the power tool may 
result in vibration-induced circulation 
problems in the hands ("white finger 
disease").
No general recommendation can be 
given for the length of usage because it 
depends on several factors.
The period of usage is prolonged by:
– Hand protection (wearing warm 
gloves)
– Work breaks
The period of usage is shortened by:
– Any personal tendency to suffer 
from poor circulation (symptoms: 
frequently cold fingers, tingling 
sensation)
– Low outside temperatures
– Amount of gripping force (holding 
the power tool tightly restricts 
circulation)
Users who use the machine periodically 
or for long periods or users who 
repeatedly experience corresponding 
symptoms (e.g., tingling sensation in 
fingers), should undergo a medical 
examination.
Maintenance and repairs
The machine must be serviced regularly. 
Do not attempt any maintenance or 
repair work not described in the 
Instruction Manual. All other work should 
be carried out by a servicing dealer.
STIHL recommends that maintenance 
and repair work be carried out only by 
authorized STIHL dealers. STIHL 
dealers receive regular training and are 
supplied with technical information.
Use only high-quality replacement parts, 
in order to avoid the risk of accidents or 
damage to the machine. Contact a 
dealer if in doubt.
STIHL recommends the use of genuine 
STIHL spare parts. Such parts have 
been optimized for the machine and the 
user's requirements.
Before starting any maintenance or 
repair work and before cleaning the 
machine, always stop the engine and 
disconnect the spark plug boot – risk 
of injury if the engine starts up 
inadvertently! – Exception: adjustment 
of carburetor and idle speed.
To reduce the risk of fire due to ignition 
outside the cylinder, move the slide 
control / stop switch to STOP or 0 before 
turning the engine over on the starter 
with the spark plug boot removed or the 
spark plug unscrewed.
Do not service or store the machine near 
a naked flame – risk of fire due to the 
fuel.
Check fuel cap regularly for tightness.
Use only spark plugs that are in perfect 
condition and have been approved by 
STIHL – see Specifications.
Inspect ignition lead (insulation in good 
condition, secure connection).
Check that the muffler is in perfect 
working condition.
Do not use the machine if the muffler is 
damaged or missing - risk of fire! – 
Hearing damage!
Never touch a hot muffler – risk of 
burns!
Check the rubber buffers underneath 
the machine - the housing must not rub 
against the ground - risk of damage!
The condition of the antivibration 
elements influences vibration behavior – 
inspect antivibration elements 
periodically.
Maintenance, replacement, or repair 
of the emission control devices and 
systems may be performed by any 
nonroad engine repair establishment 
or individual. However, if you make a 
warranty claim for a component 
which has not been serviced or 
maintained properly or if 
nonapproved replacement parts were 
used, STIHL may deny coverage.
For any maintenance please refer to the 
maintenance chart and to the warranty 
statement near the end of the instruction 
manual.