Ryobi RCS5145N User Manual page 16

the carburettor and chamber as possible.
NOTE: Be sure to pull the choke rod out to keep the
carburettor from being contaminated.
3. Using the combination wrench provided or a flat blade
screwdriver, remove the screw securing the air filter.
4. Position a flat screw driver between the tabs and twist
as shown in the illustration.
5. Lift the air filter off the air filter base.
Choose one of the following cleaning options:
● To lightly clean, tap the filter against a smooth, flat
surface to dislodge most of the saw dust and dirt
particles.
● For a more thorough cleaning, clean in warm
soapy water, rinse, and let dry completely.
● Replace with a new air filter after every 25 hours
of use.
NOTE: An alternative method is to clean the filter with
compressed air (always wear eye protection to avoid
eye injury).
6. Reinstall the air filter, making sure that the tabs on the
air filter are located in channels on the air filter bottom.
7. Reinstall air filter cover assembly. Push down on knob
and rotate clockwise to secure.
8. Clean the pre-filter (D) every 25 tanks of fuel or
sooner, if required. Remove the engine cover (3),
starter assembly (E) and the fan housing baffle (F) for
access to the pre-filter in the engine housing.
NOTE: If you use an air hose for drying, blow through
both sides of filter.
Never run the engine without the air filter, serious
damage could result. Make sure the air filter is correctly
placed in the air filter cover before reassembly.
CLEANING THE STARTER UNIT
See figure 64 - 65.
Use a brush or compressed air to keep the cooling vents
of the starter assembly free and clean of debris.
CLEANING THE ENGINE
See figure 66 - 67.
Clean the engine fins and flywheel fins with compressed
air or a brush periodically. Dangerous overheating of the
engine may occur due to impurities on the engine.
English (Original Instructions)
WARNING
Never run the saw without all the parts, including the
drivecase cover and starter housing, securely in place.
Because parts can fracture and pose a danger of
thrown objects, leave repairs of the flywheel and clutch
to trained service dealer personnel.
NOTE: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port and silencer may become blocked with
carbon deposits. If you notice a power loss with your
petrol-powered tool, you may need to remove these
deposits to restore performance. We highly recommend
that only qualified service technicians perform this service.
CHECKING THE FUEL FILTER
See figure 68.
Check the fuel filter (A) periodically. Replace it if
contaminated or damaged.
REPLACING THE SPARK PLUG
See figure 69 - 70.
This engine uses a Champion RCJ4 spark plug with 0.63
mm (0.025 inch) electrode gap. Use an exact replacement
and replace every six months, or more frequently if
necessary.
1. Loosen the spark plug by turning it anticlockwise with
a spanner.
2. Remove the spark plug.
3. Hand thread the new spark plug, turning it clockwise.
NOTE: Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the engine.
Silencer surfaces are very hot during and after
operation of the chainsaw. Keep all body parts away
from the silencer. Serious burns may occur if contact is
made with the silencer.
SPARK ARRESTOR
This product is fitted with a spark arrestor screen (inside the
muffler / silencer). If loss of engine power is experienced
the muffler may need to be replaced. Take the tool to a
service dealer to have this maintenance performed.
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WARNING
WARNING