STIHL TS 400
9
3.2
Checking axial and
radial runout
Since changes in the shaft diameter
(due to scoring, etc.) affect the radial
runout of the cutting wheel, it is
sufficient carefully to inspect the
shaft around the cutting wheel
mount.
The axial runout, on the other hand,
depends on the condition of several
components and should therefore be
determined by measurement.
- Unscrew the screw and remove the
thrust washer.
- Insert V-belt in V-belt pulley of
bearing, fit guard and loosely
screw in the fastening screws.
• Turn hexagon of clamp clockwise.
• The clamp comes within range of the
spring force after approx. 1/8 of a turn.
It must be then be turned to the limit
(approx. 1/8 of a turn).
Note:
The wrench must not be
forcibly turned further.
- Tighten all three fastening screws,
starting with the screw at the rear.
-
Turn in and tighten the screw.
•
Secure the gauge holder (1) with
gauge (2) on the shroud so that the
axial runout can be determined for a
diameter of approx. 130 mm over a
full revolution of the wheel. Refer to
the test sequence table.
- Dismantle the test equipment
after testing.
• Fit the thrust washer so that the
catches (1) engage in the locking
grooves (2) of the shaft.
• Fit a test washer (1).
