After Operation; Preparing The Fuel Mixture; Routine Maintenance - Stiga 7 Series Operator's Manual

6.7 AFTER OPERATION

– Remove the spark plug cap (Fig. 31.A).
– Mount the bar cover.
– Allow the machine to cool down.
– Loosen the rod fastening nuts
to reduce chain tension.
– Carefully remove any dust and debris
and remove all traces of sawdust or oil
deposits from the chain. (par. 7.5, par. 7.6).
– Check there are no loose or damaged
components. If necessary, replace
the damaged components and tighten
any screws and loose bolts.
IMPORTANT Stop the machine (par.
6.6), remove the spark plug cap (Fig. 31.A)
and mount the bar cover whenever the
machine is unused or left unattended.

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. 31.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 Service Centres 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
EN - 13
2-stroke
synthetic oil
litres
0.025
0.050
0.075