Stihl 410 - Page 7

TS 410, TS 420
English
5
Before fitting a used cutting wheel,
check that it is not cracked, chipped, or
uneven, and does not display any signs
of core fatigue or overheating
(discoloration); check also that there are
no damaged or missing segments and
that the spindle bore is not damaged.
Never use a chipped, cracked or warped
cutting wheel.
Substandard and/or unapproved
diamond cutting wheels can shimmy
during cutting. This shimmying can
cause such diamond cutting wheels to
be abruptly braked or become stuck in
the cut – Danger of kickback!
Kickback can result in fatal cuts!
Diamond cutting wheels that shimmy
constantly or even only intermittently
must be replaced immediately.
Never straighten diamond cutting
wheels.
Never use a cutting wheel that has been
dropped – a damaged cutting wheel may
break – risk of accident!
Observe the use-by date where resin
cutting wheels are concerned.
Mounting cutting wheels
Check the cut-off machine spindle, do
not use cut-off machines with damaged
spindles – risk of accident!
Note the arrows indicating the direction
of rotation on diamond cutting wheels.
Position front thrust washer – tighten
tensioning nut – turn cutting wheel by
hand, in the process making a visual
inspection for radial and axial runout.
Storing cutting wheels
Store cutting wheels in a dry, frost-free
place, on a flat surface, at constant
temperatures – danger of breakage
and shattering!
Always protect cutting wheels against
sudden impact with the floor or objects.
Before starting
Check that the cut-off machine is in good
condition - refer to the corresponding
chapters in the Instruction Manual:
– The cutting wheel must be suitable
for the material to be cut. It must be
in good condition and fitted correctly
(direction of rotation, securely
seated).
– Check that the deflector is secure -
consult a STIHL servicing dealer if it
is loose
– The throttle trigger and throttle
trigger interlock must move easily –
throttle trigger must return
automatically to the idle position
when released
– Slide control / master control / stop
switch must move easily to
STOP or 0
– Check that the spark plug boot is
secure. A loose boot can lead to
flying sparks which may ignite the
escaping fuel/air mixture – risk of
fire!
– Never attempt to modify the controls
or safety devices
– Keep the handles dry and clean –
free from oil and dirt – for safe
control of the cut-off machine
The machine should only be used if it is
in good working order – risk of
accident!
Starting the engine
Move at least 3 meters away from the
place at which the machine was refueled
and never start the machine in enclosed
spaces.
The machine may only be used on level
ground. Ensure a firm and secure
footing and hold the machine firmly. The
cutting wheel must not touch any objects
or the ground and must not be in the cut.
The cutting wheel may begin to rotate as
soon as the machine is started.
The machine is operated by only one
person. There should not be any other
person within the working area, not even
when starting the machine.
Do not drop-start the engine – start as
described in the Instruction Manual.
The cutting wheel continues to run for
some time after the throttle trigger has
been released – Risk of injury due to
coasting effect!
Holding and guiding the machine
The cut-off machine may only be used
for freehand cutting or when mounted on
a STIHL cut-off machine cart.
The permissible speed of
the cutting wheel must be
equal to or greater than
the maximum spindle
speed of the cut-off
machine! Refer to the
chapter "Specifications".