15.5 Maintenance of the air filter(12a)
(Fig.20)
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.
– Only clean the air filter by knocking it out.
– Never clean the air filter with petrol or flammable
solvents.
ATTENTION
Risk of damage!
Operating the engine without a filter element or with a
damaged filter element can cause engine damage.
– Never run the engine without the air filter element
or with a damaged filter element. This would allow
dirt into the engine, which would result in severe
damage to the engine.
Fouled air filters (12a) diminish the engine output due
to reduced air supply to the carburettor. Regular in-
spection is therefore essential.
The air filter (12a) should be checked every 25 operat-
ing hours and cleaned as required. The air filter (12a)
must be checked more often in case of very dusty air.
1. Take off the air filter cover (12) and remove the air
filter (12a).
2. Clean the air filter (12a) only by knocking it out.
3. Replace a defective air filter (12a) with a new one.
4. Put the air filter (12a) back in place and replace the
air filter cover (12).
15.6 Maintaining the spark plug(16a)
(Fig.21- 22)
Check the spark plug (16a) for contamination for the
first time after 10 operating hours and clean it with a
copper wire brush if necessary. Then maintain the
spark plug (16a) every 50 operating hours.
1. Pull off the spark plug connector (16) with a twisting
motion (Fig. 22).
2. Remove the spark plug (16a) with a spark plug
wrench (not included in the scope of delivery).
3. Use a feeler gauge to set the gap to 0.75
mm( 0.030”). Refit the spark plug (16a) and take
care not to overtighten it.
15.7 Engine brake lever(3) (Fig.1,11)
The engine is equipped with a mechanical brake which
has to be checked regularly. When releasing the engine
brake lever (3), the blade (27) must come to a standstill
within 7 seconds.
A running blade (27) produces clearly perceptible wind
noises. The running of the blade (27) is signalled by the
wind noise generated and can thus be controlled.
NOTE
If you notice that the blade stopping device is not
working correctly, please contact the customer ser-
vice or a specialist workshop.
Ensure that the product is in perfect condition for the
entire duration of its service life. Improper maintenance
may cause life-threatening injuries.
16 Repair & ordering spare parts
After repairs or maintenance, make sure that all safety-
related parts are installed and are in perfect condition.
All parts which may cause injury must be kept where
they are inaccessible to children or others.
ATTENTION
According to the German Product Liability Act, no lia-
bility is accepted for damage caused by improper re-
pairs or by not using original spare parts.
Such work should be performed by a customer ser-
vice centre or an authorised specialists. The same
applies to accessory parts.
Spare parts and accessories can be obtained from our
Service Centre. To do this, scan the QR code on the
front page.
NOTE
Important note in the case of repairs
When returning the product for repair, for safety rea-
sons, ensure that it is free of oil and fuel when it is
sent to the service centre.
16.1 Ordering spare parts
Please provide the following information when ordering
spare parts:
• Model designation
• Item number
• Type plate data
Spare parts / accessories
Blade - Article no.: 7911200639
Engine oil - Article no.: 7850000025
16.2 Service information
With this product, it is necessary to note that the follow-
ing parts are subject to natural or usage-related wear,
or that the following parts are required as consumables.
Wearing parts*: Spark plug, air filter, blade, V-belt
* = not included in the scope of delivery!
42 | GB www.scheppach.com
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