Jonsered 6000+ Operator's Manual page 41

To adjust the blade wheel
After the sawmill has been in use over a long period
of time, the blade wheel bearings will have become
worn and their position altered, while the working
geometry of the base will have stabilised. This will
necessitate readjusing the parallel alignment of the
blade wheels.
This adjustment is carried out as follows:
1. The saw blade must be mounted and
adjusted.
2. Remove the blade wheel guard.
3. Hold a straight-edge (A) with 4 intervening
gauge blocks (B) against the blade wheels.
Position the gauge blocks against the side of
the blade wheels at their periphery (C). The
straight-edge must be held at "blade wheel
centre" height. Do not press the straight-
edge more than necessary. The 4 gauge
blocks must have the same dimensions.
4. If the distance between the straight-edge and
the side of blade wheel at its periphery,
deviates, the relevant blade wheel must be
adjusted.
5. Use screw (D) to adjust the left-hand blade
wheel.
6. Use screw (E) to adjust the right-hand blade
wheel. A lock nut on the screw must be
backed off while the adjustment is carried
out.
Drive belt
As the sawmill is in use, the drive belt becomes
worn. To prevent belt failure while the sawmill is in
use, the belt must be changed after 200 hours of
operation.
If the drive belt slips on its pulleys or if it often
requires adjustment, this is a sure sign that the belt
needs to be replaced.
Change the belt as follows:
1. Carefully remove the motor's fuel connection,
trying not to spill any fuel.
2. Disconnect the throttle wire and the
emergency stop connection from the motor.
3. Remove the motor (held by two M8 nuts).
4. Remove the coupling drums with drive shaft.
5. Do the following:
• Loosen the belt.
• Loosen stay D.
• Ease the brake and pull the blade wheel
outward a bit. Then remove the worn belt.
6. To fit the new belt, follow the steps above in
the reverse order. For particulars of belt
adjustment, see page 42.
7. Tighten the two M8 nuts to secure the motor.
Tightening torque: 25 Nm.
MAINTENANCE
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41
English