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8.4 ADJUSTING THE BELT GUIDE
1. Remove the spark plug protection.
2. Remove the belt protective cover (1) by loosening the
screws (2). See fig. 16.
3. Activate the auger clutch lever (13 in fig 7/8).
4. Check the distance between the belt guide and the belt.
The distance should be 3 mm. See fig 17.
5. If adjustment is required, loosen the screw to the belt
guide and set the correct distance.
6. Tighten the screw properly.
7. Reassemble the belt protection.
8. Reassemble the spark plug protection.
8.5 ADJUSTING THE CONTROL WIRES
When the belts are adjusted or replaced, the control wires
must also be adjusted (see below).
1. Unhook the wire from the clutch lever (fig. 23).
2. Push the clutch lever forward as much as possible (until
it touches the plastic protection on the handle).
3. Hold the wire stretched and note the position of the wire’s
Z-shaped end.
4. When the wire is correctly adjusted its end should be
situated in the middle of the hole in the clutch lever (fig.
23).
If adjustment is required:
5. Lift the snow thrower forward and rest in on the auger
housing.
6. Push the wire through the spring so that the threaded part
is exposed (fig 21).
7. Hold the threaded part and adjust the nut up or down until
the correct setting is obtained.
8. Pull the wire through the spring again. Hook the wire into
the upper part of the clutch lever.
9. Same adjustment for both sides.
10. Start the snow thrower and check that it does not rotate
when the clutch lever is up (= disengaged).If it does,
contact an authorised service station.
8.6 FRICTION WHEEL
If the snow thrower does not move forward the problem
could be the driving belt, driving control wire or friction
wheel. Check the friction wheel as follows.
8.6.1 CHECKING THE FRICTION WHEEL
1. Remove the spark plug protection.
2. Lift the snow thrower forward and rest in on the auger
housing.
3. Loosen the screws (3) and dismantle the bottom plate (2).
See fig 19.
3. Put the gear stick in bottom forward gear (one).
4. Measure the distance A between the friction wheel and
the outside of the side plate in fig. 24. The distance should
be 109.5 mm.
5. Adjustments are carried out as follows.
6. Reassemble in the reverse order.
8.6.2 ADJUSTING THE FRICTION WHEEL
Dismantle the parts and measure according to the
instructions in items 1-4 above.
1. Loosen the screws and set the friction wheel until the
measurement in item 4 above is obtained.
2. If the friction wheel is so worn that adjustments cannot be
carried out satisfactorily, replace in accordance with the
following instructions.
3. Otherwise reassemble in the reverse order after adjusting.
8.6.3 REPLACING THE FRICTION WHEEL (Storm,
Blizzard)
1. Dismantle the right wheel from the shaft.
2. Loosen the screws (3) and dismantle the bottom plate (2).
See fig 19.
3. Remove the screw holding the chain sprocket (12) and
pull out the shaft (11) and remove the chain sprocket (12).
See fig 25.
4. Dismantle the two bearing mountings (16 in fig 20).
5. Dismantle the shaft and bearing mountings. Note the
location of the two washers (17 in fig 26).
6. Replace the friction wheel on its hub (fig 27).
7. Reassemble all the parts in the reverse order. Note the
following when reassembling:
- Check that the washers (17 in fig 26) are correctly
placed.
- Check that the washers (13 in fig 26) are correctly
placed.
- Check that the shaft (8 in fig 26) rotates freely.
- Check that the friction wheel and disc drive plate are
totally free from oil and grease.
8.7 REPLACING THE DIFFERENTIAL (FLAKE,
POWER)
See fig. 28.
The differential (A) is replaced according to the following
instructions:
1. Lift the snow thrower forward and rest in on the auger
housing.
2. Disassemble the wheels.
3. Loosen the screws (3) and dismantle the bottom plate (2).
See fig. 19.
4. Disassemble the bearing housings (B) with bearings at
both sides.
5. Loosen the intermediate shaft (C) by disassembling the
bearing screws (D) at both sides.
6. Slacken the chain tension by loosening the support
bearing attachment (E). The support bearing attachment
is loosened by disassembling the two screws at the top.
7. Remove the chain from the differential.
8. Pull out the shafts from the differential and remove the
differential.
9. Check the chains. Replace if required. The chains shall
not be lubricated. They are factory lubricated. Excessive
grease can spoil the friction if it reach the friction wheel
or the friction disc.
10. Check the bearings for dissonance and uneven friction at
rotation. Replace if required.
11. Reassemble all parts in the reverse order.