Nuts And Bolts; Occasional Maintenance; Cleaning The Air Filter; Checking The Spark Plug - Stiga BP 375 Operator's Manual

7.5 NUTS AND BOLTS

• Keep all nuts, bolts and screws tight to be sure
the equipment is in safe working condition.
• Check regularly that the
handles are fixed firmly.

8. OCCASIONAL MAINTENANCE

8.1 CLEANING THE AIR FILTER

IMPORTANT Cleaning the air filter is
essential to guarantee the efficiency and
durability of the machine. Do not work with
a damaged filter or without a filter, as this
could permanently damage the engine.
It must be cleaned after every
8-10 working hours.
Clean the filter as follows:
1. Loosen the two knobs (Fig. 9.A) and
remove the cover (Fig. 9.B).
2. Remove the paper filter (Fig. 9.C)
and the sponge filter (Fig. 9.D).
3. Blow on the paper filter to remove
dust and debris (fig. 10.A).
4. Wash the sponge filter in water (fig. 10.B).
IMPORTANT Do not use petrol, detergents
or any other products to clean the filter.
5. Leave the sponge filter to dry in the open air.
6. Clean the outside of the filter housing
eliminating dust, debris or dirt.
7. Position the filter elements in their
housings (fig. 9) (make sure the
sponge filter is completely dry);
8. Replace the cover (Fig. 9.B), fastening
the knobs in place (Fig. 9.A).

8.2 CHECKING THE SPARK PLUG

The spark plug (Fig. 9.G) can be accessed
by removing the cap (Fig. 9.F).
The spark plug must be replaced with one
with the same characteristics whenever the
electrodes have burnt or the insulation has worn,
and in any case every 100 working hours.
Contact a dealer or an authorised assistance
centre for operations on the spark plug. Consult
the maintenance table and the problem
identification table for operation of the spark plug.

8.3 STARTER ROPE

The starter rope must be replaced by your
dealer as soon as it shows signs of wear.

8.4 TUNING THE CARBURETTOR

The carburettor is tuned by the manufacturer
to achieve maximum performance in all
situations, with a minimum emission of toxic gas
in compliance with the regulations in force.
In the event of poor performance, contact your
Dealer for a check of the carburetion and engine.
Carburettor tuning:
T = tuning minimum speed
L = low speed mixture tuning
H = high speed mixture tuning

9. STORING

IMPORTANT The safety regulations to
follow for putting into storage are described
in paragraph 2.4. Strictly comply with these
indications to avoid serious risks or dangers.
9.1 STORING
If you are not going to use the machine
for a period of more than 2-3 months, we
recommend you do a few things before putting
it away. This will make it easier when you
want to use the machine again and will also
prevent permanent damage to the engine.
Before putting the machine away:
1. Empty the fuel tank in the open air with
the engine switched off and cold.
2. Start the engine and run it idle until
it uses up all the fuel that is left in
the tank and the carburettor.
3. Wait for the engine to cool.
4. Clean the machine thoroughly.
5. Check there are no loose or damaged
components. If necessary, replace the
damaged components and tighten
any screws and loose bolts or contact
the authorised service centre.
6. Store the machine:
– in a dry place
– protected from inclement weather
– in a place where children cannot get to it
– making sure that keys or tools used
for maintenance are removed.
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