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CLEANING THE AIR FILTER
A clogged air ilter prevents air from lowing to the carburettor.
For this reason, it is necessary to regularly clean the ilter.
Never start the pump's motor without a clean ilter. This
would damage the carburettor.
1. Remove the air filter cover and take the air
filter out of its housing.
Fig. 7, removing the air filter
from pump 414502
Fig. 8, removing the air filter
from pump 414503
2. Submerge the filter in a soap solution and then
wring it out. Repeat the procedure several times.
Finally submerge the filter in soapy or detergent
water and wring it out. Do this several times to tho-
roughly wash the cleaning agent out of the filter.
EN
•
ATTENTION
y Never use flammable fluids to clean the air filter.
Dust may become charged with static electricity
and this could result in a fire if flammable fluids
were used.
y If it is not possible to clean the filter or if it is
damaged, replace it with a new one. Only use
original filters from the manufacturer, because low
air permeability in the even of an excessively dense
filter will negatively affect the motor's operation.
High filter permeability may result in a low filtrati-
on effect and lead to damage of the carburettor.
3. Allow the filter to dry thoroughly.
4. Then submerge the filter in clean motor oil and
wring out any excess oil. Use water resistant
gloves. Oil is absorbed through skin into the
body and is damaging to health.
DRYING
DETERGENT SOLUTION
MOTOR OIL
Fig. 9
5. Put the filter back in its original location, fir-
mly attach the cover and screw it in.
84
MAINTENANCE OF THE SPARK PLUG
y In order to achieve problem-free operation of the
pump, the spark plug must be correctly seated and
clean from deposits.
1. Remove the spark plug connector from the
spark plug.
Fig. 10
2. Screw out the spark plug using the included
spark plug key.
3. Mechanically clean away any deposits on the
electrodes, e.g. using sandpaper or a steel brush.
Fig. 11
If necessary, adjust the clearance between the
electrodes to 0.6 - 0.7 mm using pliers.
85
Fig. 12
If the spark plug is very dirty, replace it.
y We recommend using quality spark plugs, e.g. NGK or
Brisk, etc. because poor quality spark plugs may cause
problems with starting up. An equivalent of the spark
plug that is supplied with the product is specified in
paragraph 3) in chapter Technical specifications.
y An heavily soiled or worn out spark plug has
a negative effect on the starting and running per-
formance of the pump's motor.
y The speed at which the spark plug is soiled,
starting and motor performance are significantly
affected by the quality and age of the fuel as well
as the mixed in motor oil.
4. Check the sealing ring on the spark plug.
Fig. 13
5. Screw the spark plug on all the way by hand.
Then use a spark plug key to tighten it by:
- 1/2 rotation on new spark plugs
- 1/4 rotation on already used spark plugs.
y Never fully tighten a spark plug „to maximum", this
would damage the sealing ring.
EN
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