Stihl TSA 230 Instruction Manual page 48

English
Cut-off machine, spindle bearing
Correct spindle bearings ensure the
concentricity and axial running of the
diamond abrasive cutting wheel – if
necessary, get it checked by an
approved dealer.
Abrasive cutting wheels
Selecting the abrasive cutting wheels
Abrasive cutting wheels must be
approved for freehand cutting. Do not
use other abrasive units and
attachments – risk of accident!
Abrasive cutting wheels are suitable for
different materials: Observe the
identification of the abrasive cutting
wheels.
STIHL generally recommends wet
cutting.
Observe the outside
diameter of the abrasive
cutting wheel – refer to
the chapter
"Specifications".
Spindle hole diameter of
the abrasive cutting
wheel and shaft of the
cut-off machine must
match – refer to the chap-
ter "Specifications".
Check the spindle hole for damage. Do
not use abrasive cutting wheels with a
damaged spindle hole – risk of accident!
46
The permissible speed of
the abrasive cutting
wheel must be equal to or
greater than the maxi-
mum spindle speed of the
cut-off machine. – Refer
to the chapter
"Specifications".
Before fitting a used abrasive cutting
wheel, check that it is not cracked,
chipped, undercut 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 hole is
not damaged.
Never use cracked, chipped or bent
abrasive cutting wheels.
Substandard and/or unapproved
diamond abrasive cutting wheels can
shimmy during cutting. This shimmying
can cause such diamond abrasive
cutting wheels to be abruptly braked or
become stuck in the cut – Danger of
kickback! Kickback can result in fatal
injuries! Diamond abrasive cutting
wheels that shimmy constantly or even
only intermittently must be replaced
immediately.
Never straighten diamond abrasive
cutting wheels.
Do not use an abrasive cutting wheel
which has fallen to the ground –
damaged abrasive cutting wheels may
break – risk of accident!
Observe the expiration date where resin
abrasive cutting wheels are concerned.
Fitting abrasive cutting wheels
Inspect the spindle of the cut-off
machine. Do not use a cut-off machine if
the spindle is damaged – risk of
accident!
Note the arrows indicating the direction
of rotation on diamond abrasive cutting
wheels.
Position the front pressure plate –
tighten up the clamping screw – rotate
the abrasive cutting wheel by hand and
take a sight check for concentricity and
axial running.
Storing abrasive cutting wheels
Store abrasive cutting wheels in a dry
and frost-free place, on a flat surface, at
constant temperature – risk of breakage
and splintering!
Always protect the abrasive cutting
wheel against sudden contact with the
ground or objects.
Before starting work
Inspect the parting-off grinder for safe-
to-operate state – observe the
respective chapters in the instruction
manual:
Trigger switch and trigger switch
–
lockout must move easily – trigger
switch and trigger switch lockout
must return to initial position when
released
The abrasive wheel must be
–
suitable for the material to be cut. It
must be in good condition and fitted
correctly (direction of rotation,
secure).
TSA 230