Routine Maintenance; Preparing The Fuel Mixture - Stiga SP 386 Manual De Instrucciones

7. ROUTINE MAINTENANCE

7.1 GENERAL INFORMATION
IMPORTANT The safety regulations to
follow during machine use are described
in Chapter 2. Strictly comply with these
instructions to avoid serious risks or hazards.
Before conducting any
inspections, cleaning or maintenance/
adjustment interventions on the machine:
• Stop the machine;
• Wait until the chain is stationary;
• Apply the bar cover, except when working
directly on the chain or bar itself.
• Remove the spark plug cap (Fig. 30.A);
• Wait until the engine is sufficiently cold;
• read the relevant instructions;
• Use suitable clothing, protective
gloves and goggles;
• The frequency and types of maintenance are
summarised in the "Maintenance Table" (see
chapter 12). The table will help you maintain
your machine's safety and performance.
It summarises the main interventions to
be made and the frequency applicable
to each of them. Carry out the relevant
intervention according to the first deadline.
• The use of non-genuine spare parts and
attachments could adversely affect machine
operation and safety. The manufacturer
shall decline all liability in the event of
injuries or damages caused by such parts.
• Genuine spare parts are supplied by
authorized assistance workshops and dealers.
• Never use the machine with worn or
damaged parts. Damaged parts are
to be replaced and never repaired.
IMPORTANT All the maintenance and
adjustment operations not described
herein must be carried out by your dealer
or Authorised Service Centre.

7.2 PREPARING THE FUEL MIXTURE

This machine has a two-stroke engine which
requires a mixture of petrol and lubricating oil.
IMPORTANT Using petrol alone will damage
the engine and will void the warranty.
IMPORTANT Only use quality fuels and oils
to maintain high performance and guarantee
the duration of the mechanical parts over time.
7.2.1 Petrol characteristics
Only use unleaded petrol with an
octane rating of at least 90.
IMPORTANT Unleaded petrol tends to
create deposits in the container if stored for
more than 2 months. Always use fresh petrol!
7.2.2 Oil characteristics
Only use top quality synthetic oil that is
specifically for two-stroke engines, of
JASO FC minimum specification.
Your dealer can provide you with oils which
have been specifically developed for this
type of engine, and which are capable of
guaranteeing a high level of protection.
The use of these oils makes it possible
to prepare a 2.5% mixture, consisting
of 1 part oil to 40 parts petrol.
7.2.3 Preparation and storage
of the fuel mixture
The chart indicates the amount of petrol
and oil to use to prepare the fuel mixture.
Petrol
litres
1
2
3
5
10
To prepare the fuel mixture:
1. Place about half the amount of
petrol in a homologated tank.
2. Add all the oil.
3. Add the rest of the petrol.
4. Close the top and shake well.
IMPORTANT The fuel mixture tends to age.
Do not prepare excessive amounts of the fuel
mixture to avoid the formation of deposits.
IMPORTANT Keep the petrol and
fuel mixture containers separate and
easily identifiable to avoid the mistake
of using one in place of the other.
IMPORTANT Periodically clean the petrol and
fuel mixture containers to remove any deposits.
EN - 13
2-stroke
synthetic oil
litres
0.025
0.050
0.075
0.125
0.250