Scheppach HP2500S Originalbetriebsanleitung Seite 42

12.6 Air filter maintenance (Fig. 17)
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 clean the air filter with petrol or flammable
solvents.
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.
A fouled air filter insert (4c,4d) diminishes the engine
output due to reduced air supply to the carburettor. Reg-
ular inspection is therefore essential.
The air filter should be checked every 50 operating
hours and cleaned as required.
1. Loosen the wing nut (4a) and remove the air filter
cover (4).
2. Check the air filter cover (4) for holes or cracks.
Replace any damaged insert.
3. Loosen the wing nut on the inside (4b).
4. Remove the foam filter (4c) and the paper filter (4d)
and replace any defective elements.
5. Wipe off dirt on the inside of the filter housing and
the filter housing cover (4) with a clean moist cloth.
Make sure that no direct enters the opening. Set
the air filter cover (4) on the filter housing for the
duration of the filter cleaning process.
6. Tap the paper filter (4d) on a hard surface or blow
it out with compressed air to remove the dirt. Never
try to brush the dirt out as this will press it into the
fibres.
7. Rinse the foam filter (4c) out under flowing water
and leave it to dry well.
8. Reinsert the paper filter (4d) and the foam filter (4c).
9. Secure the filter elements with the wing nut on the
inside (4b).
10. Then replace the air filter cover (4) and secure it
with the wing nut on the outside (4a).
m ATTENTION: Never run the engine without an air
filter insert or with a damaged air filter insert (4c, 4d).
This would allow dirt to enter the engine, which would
damage the engine. The manufacturer warranty is then
invalidated.
42 | GB
12.7 Cleaning / replacing the spark plug (Fig. 18)
m ATTENTION: Only replace the spark plug when the
engine is cold!
Check the spark plug for dirt for the first time after 10
operating hours and clean it with a copper wire brush if
necessary. Thereafter, replace the spark plug every 50
operating hours if necessary.
1. Disconnect the spark plug cable and remove any
dirt in the spark plug area.
2. Unscrew the spark plug (24) with the supplied
spark plug wrench.
3. Check the insulation. Replace the spark plug if it is
damaged, e.g. cracked or fragmented.
4. Clean the spark plug electrodes with a wire brush.
5. Check the electrode gap and adjust it using a feel-
er gauge. To make sure that the engine remains
efficient, the spark plug must have the right elec-
trode gap (0.7-0.8 mm).
6. Screw the spark plug (24) back in by hand and tighten
it about 1/4 turn with the spark plug wrench supplied.
7. Fit the spark plug cable onto the spark plug (24).
m ATTENTION!
A loose spark plug can overheat and cause damage to the
engine. Tightening the spark plug too much can damage
the thread in the cylinder head.
12.8 Cleaning the float chamber
m ATTENTION: Only remove the float chamber when
the engine is cold!
1. Turn off the fuel tap (15).
2. Loosen the drain screw (15a) on the float chamber
and drain the fuel into a suitable container.
3. Refit the drain plug (15a).
4. Loosen the fastening screw (15b) on the float
chamber.
5. Unscrew the float chamber and the radial seal.
6. Clean the parts.
7. Refit the float chamber with the radial seal using
the fixing screw (15b).
13. Storage
m DANGER!
Risk of fire and explosion!
Storing the product near potential sources of ignition
can result in a fire or an explosion. This can lead to
severe burns or death.
- Eliminate possible sources of ignition, such as fur-
naces, hot water boilers with gas, gas dryers, etc.
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