Ryobi RY13010 - Manual (Page 14)

10 — English
MAINTENANCE
SPARK ARRESTOR
The spark arrestor must be replaced every 50 hours or yearly
to ensure proper performance of your product. Spark arres-
tors may be in different locations depending on the model
purchased. Please contact your nearest service dealer for the
location of the spark arrestor for your model.
IDLE SPEED ADjUSTMENT
See Figure 15.
If the cutting attachment turns at idle, the idle speed screw
needs adjusting on the engine. Turn the idle speed screw
counterclockwise to reduce the idle RPM and stop the cutting
attachment movement. If the cutting attachment still moves at
idle speed, contact a service dealer for adjustment and discon-
tinue use until the repair is made.
WARNING:
The cutting attachment should never turn at idle. Turn the
idle speed screw counterclockwise to reduce the idle RPM
and stop the cutting attachment, or contact a service dealer
for adjustment and discontinue use until the repair is made.
Serious personal injury may result from the cutting attach-
ment turning at idle.
CLEANING AIR FILTER
See Figure 16.
A dirty air filter will cause starting difficulty, loss of performance,
and shorten the life span of the engine. Check the air filter
monthly. For best performance, replace the air filter at least
once a year.

Loosen the air filter cover by turning the knob
counterclockwise.
 Remove the air filter.
 Clean the foam filter element with warm soapy water. Rinse
and let dry.
NOTE: If the foam filter element is damaged, it should be
replaced.
 Apply a light coat of engine oil to the foam filter element,
then squeeze it out.
 Reinstall the air filter.
NOTE: Make sure the filter is seated properly inside the
cover. Installing the filter incorrectly will allow dirt to enter
the engine, causing rapid engine wear.
 Reinstall the cover and tighten knob to secure.
FUEL CAP
WARNING:
Check for fuel leaks. A leaking fuel cap is a fire hazard and
must be replaced immediately. If you find any leaks, correct
the problem before using the product. Failure to do so could
result in a fire that could cause serious personal injury.
The fuel cap contains a non-serviceable filter and a check valve.
A clogged fuel filter will cause poor engine performance. If per-
formance improves when the fuel cap is loosened, check valve
may be faulty or filter clogged. Replace fuel cap if required.
WARNING:
When servicing, use only identical replacement parts. Use
of any other parts may create a hazard or cause product
damage.
WARNING:
Always wear eye protection with side shields marked to
comply with ANSI Z87.1, along with hearing protection.
Failure to do so could result in objects being thrown into
your eyes and other possible serious injuries.
WARNING:
Before inspecting, cleaning, or servicing the machine, shut
off engine, wait for all moving parts to stop, and disconnect
spark plug wire and move it away from spark plug. Failure
to follow these instructions can result in serious personal
injury or property damage.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most plastics
are susceptible to damage from various types of commercial
solvents and may be damaged by their use. Use clean cloths
to remove dirt, dust, lubricant, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating lubricants, etc., come in con-
tact with plastic parts. Chemicals can damage, weaken or
destroy plastic which may result in serious personal injury.
You can often make adjustments and repairs described here.
For other repairs, have the trimmer serviced by an authorized
service dealer.
CLEANING THE AIR INTAKE SCREEN
See Figure 14.
If the air intake screen becomes clogged or dirty, air circulation
will decrease and engine performance will suffer.
To clean:

Stop the trimmer and disconnect the spark plug wire.
 Allow the unit to cool, if necessary.
 Using a dry cloth or nylon brush, remove dirt and debris
from screen.
CLEANING THE EXHAUST PORT AND
MUFFLER
NOTE: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions, the
exhaust port, muffler, and/or spark arrestor screen may become
blocked with carbon deposits. If you notice a power loss with
your gas powered tool, you may need to remove these deposits
to restore performance. We highly recommend that only quali-
fied service technicians perform this service.