Stihl TSA 230 Instruction Manual page 48

English
Cut-off machine, spindle bearing
Faultless spindle bearings provide for
concentricity and axial running of the
diamond-tipped abrasive wheel – if
necessary, get it checked by a
competent dealer.
Abrasive wheels
Selecting the abrasive wheels
Abrasive wheels must be approved for
hand-held cutting. Do not use other
abrasive wheels and attachments –
danger of accident!
Abrasive wheels are suitable for
different materials: Observe the
identification of the abrasive wheels.
STIHL generally recommends wet
cutting.
Observe the outside
diameter of the abrasive
wheel – refer to the chap -
ter "Specifications".
Spindle hole diameter of
the abrasive wheel and
shaft of the cut-off
machine must match –
refer to the chapter
"Specifications".
Check the spindle hole for damage. Do
not use abrasive wheels with damaged
spindle bore – risk of accident!
46
The permissible speed of
the abrasive wheel must
be equal to or greater
than the maximum spin -
dle speed of the cut-off
machine. – Refer to the
chapter "Specifications".
Before fitting a used abrasive 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 bore is
not damaged.
Never use cracked, chipped or bent
abrasive wheels.
Substandard and/or unapproved
diamond abrasive wheels can shimmy
during cutting. This shimmying can
cause such diamond abrasive wheels to
be abruptly braked or become stuck in
the cut – Danger of kickback! Kickback
can result in fatal cuts! Diamond
abrasive wheels that shimmy constantly
or even only intermittently must be
replaced immediately.
Never straighten diamond abrasive
wheels.
Do not use an abrasive wheel which has
fallen to the ground – damaged abrasive
wheels may break – risk of accident!
Observe the expiration date where resin
abrasive wheels are concerned.
Fitting abrasive wheels
Inspect the spindle of the cut-off
machine. Do not work with a device
whose spindle is damaged – risk of
accident!
Note the arrows indicating the direction
of rotation on diamond abrasive wheels.
Position the front pressure plate – rigidly
tighten the clamping screw – rotate the
abrasive wheel by hand and take sight
check for concentricity and axial
running.
Storing abrasive wheels
Store abrasive wheels in dry and frost-
free manner, place them on plane
ground, at constant temperature – risk of
breakage and splintering!
Always protect the abrasive 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).
Trigger switch is locked when the
–
trigger switch lockout is not
depressed
Locking lever easy to set to ‚ or ƒ
–
Never attempt to modify the controls
–
or safety devices in any way
TSA 230