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13.10 Replacing the V-belts (56) (Fig. 14, 25, 26, 28)
Note: If the V-belts (56) are torn, worn out or smooth,
they must be replaced.
1.
Place the device on a level, even surface.
2.
Remove the ignition key (33) from the ignition lock
(34).
3.
Remove the spark plug connector (59) from the
spark plug (60).
4.
Remove the V-belt cover (20) by removing the
four hexagonal bolts using a 10 mm open-ended
spanner.
5.
In order to replace the V-belts (56), loosen each of
the V-belt tensioning screws (53) and counternuts
(54) using a 16 mm open-ended spanner/ratchet
spanner with an extension on both sides of the
engine (4).
6.
Use a 16 mm open-ended spanner/ratchet
spanner with extension to loosen the four engine/
shredding unit connection screws (55).
7.
Remove the old V-belts (56).
8.
Pull the V-belts (56) on correctly.
(Pay attention to the running direction!)
9.
Tension the V-belt (56) as described in section
13.8.
13.11 Air filter maintenance (58) (Fig. 27)
m DANGER!
Risk of fire and explosion!
If not cleaned correctly, fuel may ignite and even ex-
plode. This can lead to severe burns or death.
- Clean the air filter only by knocking it out.
- Never use petrol or flammable solvents to clean the
air filter.
NOTE!
Risk of damage!
Operating the engine without the filter element in place
can cause engine damage.
- Never run the engine without the air filter element
in place.
Contaminated air filters (58) diminish the engine output
due to reduced air supply to the carburettor. Regular
inspection is therefore essential.
The air filter (58) should be checked every 25 operating
hours and cleaned as required. The air filter (58) must
be checked more often if the air is very dusty.
1.
Remove the air filter cover (2) by removing the
wing screw (57).
2.
Remove the air filter (58).
3.
Clean the air filter (58) only by tapping it.
52 | GB
4.
Replace a faulty air filter (58) with a new one.
5.
Re-insert the air filter (58) and use the wing screw
(57) to fit the air filter cover (2).
13.12 Spark plug maintenance (60) (Fig. 28-29)
Check the spark plug (60) for contamination for the first
time after 20 operating hours and clean it with a copper
wire brush if necessary. Then maintain the spark plug
(60) every 50 operating hours.
1.
Place the device on a level, even surface.
2.
Remove the ignition key (33) from the ignition lock (34).
3.
Remove the spark plug connector (59) from the
spark plug (60).
4.
Use the spark plug wrench (K) to remove the spark
plug (60).
5.
Remove any dirt from the base of the spark plug (60).
6.
Visually inspect the spark plug (60). Remove any
deposits present using a copper wire brush.
7.
Check the spark plug gap. Use a feeler gauge to
adjust the electrode gap to 0.6-0.7 mm.
8.
Replace the spark plug (60) and take care not to
tighten it too firmly.
9.
Then place the spark plug connector (59) on the
spark plug (60).
13.13 Lubricating the bearings (61) (Fig. 25, 30)
Note: The bearings (61) on both sides of the chopper
unit (5) must be lubricated regularly with a grease gun.
1.
Place the device on a level, even surface.
2.
Remove the ignition key (33) from the ignition lock (34).
3.
Remove the spark plug connector (59) from the
spark plug (60).
4.
Remove the V-belt cover (20) by removing the
four hexagonal bolts using a 10 mm open-ended
spanner.
5.
Remove the protective caps from the grease nip-
ples (62) on both sides.
6.
Use a lint-free cloth to clean the grease nipples
(62) on both sides.
7.
Use 1-2 pumps of the grease nipples (62) to lubri-
cate the bearings (61) on both sides.
8.
Use a lint-free cloth to clean the grease nipples
(62) on both sides to remove excess grease.
9.
Fit the protective caps to the grease nipples (62)
on both sides.
10. Re-attach the V-belt cover (20) and secure it with
four hexagonal bolts.
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