Stihl TS 420 Original Instruction Manual

Working safely with cut-off machines
English
9
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.
Water must always be used for wet
cutting when working with diamond
cutting wheels
Extend service life and increase
cutting speed
Always ensure a supply of water to the
cutting wheel.
Bind dust
The cutting wheel must be supplied with
at least 0.6 l/min of water.
Water attachment
– Water attachment on the machine
for all types of water supplies
– Pressurized water tank 10 l for
binding dust
– water tank usable on the cut-off
machine cart for binding dust
Sample applications

Stihl TS 420 Specifications

General

Engine Power	4.4 bhp
Weight	21.2 lbs
Arbor Size	20 mm
Maximum Wheel Size	350 mm
Maximum Cutting Depth	125 mm
Displacement	66.7 cc (4.1 cu. in.)
Fuel Capacity	710 cc