Ryobi RFT254 User Manual page 10

an authorised service centre.
■ Consequences of improper
include excess carbon deposits resulting in loss of
performance and discharge of black oily residue
dripping from the silencer.
■ Make sure all guards, straps, deflectors and handles
are properly and securely attached to avoid the risk of
personal injury.
CLEANING THE AIR INTAKE AREA
See figure 12.
To clean:
■ Stop the wheeled trimmer and disconnect the spark
plug wire.
■ Allow the unit to cool, if necessary.
■ Using a nylon brush, remove dirt and debris between
engine cover and fuel tank.
CLEANING THE AIR INTAKE AREA AND FOAM AIR
FILTER
See figure 13.
To ensure optimum performance, regularly remove grass
cuttings from the machine.
■ Stop the wheeled trimmer and disconnect the spark
plug wire.
■ Allow the unit to cool, if necessary.
■ Wear gloves before removing the grass cuttings.
■ Remove the grass cuttings carefully from:
● Air intake area (between the engine cover and fuel
tank).
● Foam air filter (behind the back air filter cover).
CLEANING THE AIR FILTER ELEMENT
See figure 14.
■ Stop the trimmer.
■ Remove the spark plug cover.
■ Loosen the air filter cover by turning the knob
counterclockwise.
■ Remove the air filter cover.
■ Remove the air filter element and clean it with warm
soapy water. Then, rinse and let it dry completely.
■ Apply two drops of lubricant into the air filter.
■ Replace the air filter element (fits only one way).
■ Replace the air filter cover. Tighten it by turning the
English(Original instructions)
maintenance may ■ Replace the spark plug cover.
NOTE: Make sure the filter is seated properly inside the
cover. Installing the filter incorrectly will allow dust/debris
to enter the engine, causing rapid engine wear.
NOTE: For best performance, the air filter element should
be replaced once each year.
IDLE SPEED ADJUSTMENT
If the cutting attachment turns at idle, the idle speed screw
needs adjusting on the engine, contact an authorised
service centre for adjustment and discontinue use until the
repair is made.
CHECKING THE FUEL CAP
A leaking fuel cap is a fire hazard and must be replaced
immediately.
The fuel cap contains a non-serviceable filter and a
check valve. A clogged fuel filter causes poor engine
performance. If performance improves when the fuel cap
is loosened, the check valve may be faulty or the filter may
be clogged. Replace the fuel cap if necessary.
REPLACING THE SPARK PLUG
See figure 15.
This engine uses a NGK BPMR7A or a Champion RCJ6Y
spark plug. Use an exact replacement and replace
annually. Follow these steps to replace the spark plug.
■ Remove the spark plug cover.
■ Loosen the spark plug by turning it counterclockwise
■ Hand thread the new spark plug. Turn it clockwise and
Do not cross-thread the spark plug. Cross threading will
seriously damage the product.
SPARK ARRESTOR
The silencer is equipped with a spark arrestor screen
inside silencer body. After extended use the screen can
become dirty and may need to have the silencer replaced
by an authorised servicing dealer.
10
knob clockwise.
WARNING
with a 5/8 in. socket. Remove the spark plug.
tighten with a socket. Do not overtighten.
WARNING