Abrasive Wheel Brake - Stihl TS 440 Instruction Manual

English
6.5 Troubleshooting
6.5.1 Abrasive wheel
Defects
ragged edges or cut surfaces,
crooked cut
heavy wear on the sides of the
segments
ragged edges, crooked cut, no
cutting performance, generation
of sparks
poor cutting performance, high
segment wear
Breakdowns or tears in the
parent wheel and segment
Undercut
7

Abrasive wheel brake

This cut-off machine is fitted with the STIHL
QuickStop cutting wheel brake.
When starting, the cutting wheel brake is
engaged. After starting, the cutting wheel brake
must be released.
The cutting wheel brake will be triggered if there
is a sufficiently forceful kickback. When activa‐
ted, the cutting wheel brake stops the abrasive
cutting wheel within a fraction of a second.
7.1 Checking function of the cutting
wheel brake
Each time before starting work
1
► Operate brake lever (1) in the direction of the
handlebar and hold - the abrasive cutting
wheel can be turned by hand.
1)
STIHL recommends STIHL servicing dealers
16
Cause
Deviation in radial or axial run-out Contact a servicing dealer
Abrasive wheel gyrates
Abrasive wheel is dull; built-up
edges with abrasive wheels for
stone
Abrasive wheel is turning in the
wrong direction
Overloading
Cutting in the wrong material
► Release the brake lever (1) - the cutting wheel
► If the abrasive cutting wheel can be moved
The brake lever must be free of dirt and easily
movable.
7.2
► When the engine is running, operate the brake
Remedy
use a new abrasive wheel
Sharpen abrasive wheels for
stone by briefly cutting through
abrasive materials; replace
abrasive wheel for asphalt with a
new one
Mount abrasive wheel so that it
turns in the right direction
use a new abrasive wheel
use new abrasive wheel;
observe separating layers of
various materials
brake is engaged - the abrasive cutting wheel
cannot be turned by hand.
without operating the brake lever (1): Do not
use the cut-off machine and consult your serv‐
icing dealer. Arrange for the cutting wheel
brake to be repaired.
Releasing cutting wheel brake
lever in the direction of the handlebar and
release - the cutting wheel brake is released
7 Abrasive wheel brake
1)
0458-520-8321-B