Tensioning The V-Belt - Stihl TS 350 Manual

Top: Inserting hex. head screw
Bottom: Bearing mounted outboard
Fit the V-belt guard (5) on the inside of the arm. Insert a
hex. head screw (6) through one of the two front holes
and screw it into the bearing plate (3) - move V-belt guard
(5) to and fro to ease insertion. The assembly sequence is
otherwise as for "Inboard mounting".
When the cutting wheel is mounted outboard the wheel
guard does not have the full 360° adjustment since the
movement of the adjusting lever is restricted by the
handlebar mounting, i. e. reduced by about 20°.
16

Tensioning the V-belt

Turning eccentric adjuster to tension V-belt
To tension the V-belt, first slacken off the two front hex.
head screws (6) and moderately tighten the rear one (with
eccentric adjuster). Then use a 13 mm open end wrench
to turn the eccentric adjuster (7) clockwise. This causes
the bearing to be shifted away from the engine and thus
tension the V-belt.
Once the correct tension has been reached, release the
eccentric adjuster (7) (as the rear hex. head screw has
been tightened down slightly the bearing and adjuster
remain in the set position). Then finally tighten down the
hex. head screws (6), starting with the rear one (with
eccentric adjuster).
The V-belt is correctly tensioned if it can be depressed
3 3
slightly (5-10 mm/ / - /
16 8
Overtensioning of the V-belt will accelerate wear.
On a new machine, or if a new V-belt has been fitted, it is
advisable to check V-belt tension after about 1 operating
hour and correct it if necessary.
") with moderate thumb pressure.
TS 350