-24-
The double-toothed belt is tensioned by spring force.
Proceed in reverse order to dismantle the double-
toothed belt.
4.4 Change of saw wire
Danger
Always pull the power plug before
changing the saw wire!
Risk of injury even if the saw wire is
standing still.
Proceed as follows to replace the saw wire:
Where necessary, remove the double-toothed
belt and move the clamping lever to park
position (see chapter 4.3 Installation of double-
toothed belt, page 23)
Unfasten the cylinder head bolt 11 (Fig. 4) with
the Allen key 10 enclosed in the supply, fasten it
on the rear tilting segment 9 (Fig. 1) and fold
down the cover.
Use the Allen key to turn the rotation axis 12
(Fig. 2) clockwise until the cam engages. The
saw wire is now slackened.
Unfasten the cylinder head bolt 13 (Fig. 2) in the
front saw guard with the Allen key 10 (Fig. 1)
and remove the guard.
Caution: Risk of injury at the
blades.
The saw wire can now be removed.
Every time you change the wire, also check the
scrapers 31 (Fig. 3) and 32 (Fig. 4) for damage
and wear and replace them as well (see chapter
4.6 Change of scraper, page 25)
Place a new saw wire onto the drive wheel and
deflection wheel. Pay attention that the blades
point in running direction and gear into the gaps
of the wheels.
Use the Allen key to turn the rotation axis anti-
clockwise until the saw wire is tensioned by
spring force.
Fold up the cover and tighten it with the screw.
Put on the front saw guard and tighten it with the
cylinder head bolt. Fasten the Allen key in the
rear tilting segment.
Pull the saw wire 2-3 times through by hand to
check its correct seat on the wheels.
The saw wire is tensioned by spring force and does
not need to be retensioned.
4.5 Change of drive wheel and guide wheel
Danger
Pull the power plug during all
service work.
The strain on the wheels is particularly high. They
must be replaced if they exhibit visible grooves.
4.5.1
Change of drive wheel
Proceed as follows to replace the drive wheel:
Remove the saw wire from the drive wheel (see
chapter 4.4 Change of saw wire, page 24).
Unfasten the fillister head screw 14 (Fig. 3) and
remove the scraper.
Press the push-button 15 (Fig. 1) and pull the
locking lever 16 upwards. Now the saw shaft is
locked in position and the shift lever locked.
Using the Allen key 10 (Fig. 1), release the
flange screw 17 (Fig. 3)
counter clockwise
.
Now remove both the screw and the front
clamping flange 18.
You can now remove the drive wheel.
The clamping flanges must be free of adhering
parts. Now put a new drive wheel onto the rear
flange.
Afterwards, mount the clamping flange, attach
the flange screw and tighten it by
clockwise
turning.
Put the scraper onto the bracket and fasten it
with the fillister head screw.
Align the scraper with the drive wheel so that
the scraper tongue just touches the groove base
of the drive wheel. Tighten the fillister head
screw.
Now put the saw wire onto the drive wheel (see
chapter 4.4 Change of saw wire, page 24).
