Adjusting The Chain Tension - Ryobi RCS3845 Original Instructions Manual

ADJUSTING THE CHAIN TENSION

See page 27.
1. Stop the engine. Wear protective gloves. Disengage
the chain brake.
2. Make sure the bar mounting nuts are loosened to
finger-tight.
3. To increase the chain tension, turn the chain tensioning
screw clockwise and check the chain tension frequently.
To reduce the chain tension, turn the chain tensioning
screw counterclockwise and check the chain tension
frequently.
Tighten the bar mounting nuts by turning them clockwise
to 11 ~ 13 Nm (Turn the nut 180° or 3 flats past finger
tight). Do not overtighten.
NOTE: The chain tension is correct when the gap between
the cutter in the chain and the bar is about 3 - 4 mm. Pull the
chain in the middle of the lower side of the bar downwards
(away from the bar) and measure the distance between the
bar and the chain cutters.
NOTE: The temperature of the chain increases during
normal operation causing the chain to stretch. Check the
chain tension frequently and adjust as required. A chain
tensioned while warm may be too tight upon cooling. Make
sure that the chain tension is correctly adjusted as specified
in these instructions.
OPERATION
FUEL AND REFUELLING
Handling the fuel safely
WARNING
Always shut off engine before fuelling. Never add fuel to
a machine with a running or hot engine. Move at least
10 metres from refuelling site before starting the engine.
Do not smoke! Failure to heed this warning can result in
possible personal injury.
WARNING
Check for fuel leaks. If any are found, correct them
before using the product to prevent fire or burn injury.
■ Always handle fuel with care; it is highly flammable.
■ Always refuel outdoors away from potential sources of
ignition, do not inhale fuel vapours.
■ Do not let petrol or lubricant come in contact with skin.
If contact does occur wash immediately with soap and
plenty of water.
■ Keep petrol and lubricant away from the eyes. If petrol
or lubricant comes in contact with the eyes, wash them
immediately with clean water. If irritation is still present,
see a physician immediately.
Mixing the fuel
■ The product is powered by a 2-cycle engine and
requires pre-mixing petrol and 2-cycle lubricant. Pre-
mix unleaded petrol and 2-cycle engine lubricant in a
clean container approved for petrol.
■ The engine is certified to operate on unleaded petrol
intended for automotive use with an octane rating of 91
or higher.
■ Do not use any type of pre-mixed petrol/lubricant from
fuel service stations; this includes the pre-mixed petrol/
lubricant intended for use in mopeds and motorcycles.
■ Use a high quality 2-cycle self-mixing lubricant for air-
cooled engines. Do not use automotive lubricant or
2-cycle outboard lubricant.
■ Mix 2% lubricant into the petrol. This is a 50:1 ratio.
■ Mix the fuel thoroughly and each time before fuelling.
■ Mix in small quantities. Do not mix quantities larger
than usable in a 30-day period. A 2-cycle lubricant
containing a fuel stabiliser is recommended.
NOTE: Fuel system damage or performance problems
resulting from the use of an oxygenated fuel containing
more than the percentages of oxygenates stated previously
are not covered under warranty.
Filling the fuel tank
See page 14.
■ Clean the surface around the fuel cap to prevent
contamination.
1. Loosen the fuel cap by turning it counterclockwise.
2. Lift the fuel cap and set aside.
3. Carefully pour the fuel mixture into the tank. Avoid
spillage. Prior to replacing the fuel cap, clean and
inspect the gasket. Immediately replace the fuel cap
and hand tighten it. Wipe away any fuel spillage.
NOTE: It is normal for the engine to emit smoke during and
after the first use.
ADDING CHAIN LUBRICATING OIL
See page 15.
WARNING
Never work without chain lubricant. If the saw chain is
running without lubricant, guide bar and saw chain can
be damaged. It is therefore essential to check the oil
level frequently and every time before starting to use the
product.
■ Clear surface around the oil tank cap to prevent
contamination.
1. Unscrew and remove the oil tank cap from the oil tank.
2. Lift the oil tank cap and set aside.
3. Pour the oil into the oil tank and monitor the oil level
gauge. Ensure that no dirt enters the oil tank while
filling. Put the oil tank cap back on and tighten. Wipe
away any spillage.
■ One full oil tank will enable you to use the product for
20 - 40 min.
NOTE: A properly functioning chain and bar lubricating
system will normally discharge oil from the chain during
use. To check the functionality of the chain and bar
lubricating system, point the tip of the chain at a light
coloured surface, such as a newspaper. While the product
is operating, a distinct line of oil splatter should be observed
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