Ryobi RY34422 Manual Del Operador página 15

 Reinstall the spool retainer to secure.
To install the spool retainer:
Turn the spool retainer clockwise for C430.
Turn the spool retainer counterclockwise for S430.
 Install line as described in Line Replacement.
LINE REPLACEMENT
See Figures 17 - 19.
 Stop the engine and disconnect the spark plug wire.
 Rotate the spool clockwise as necessary to align the arrows
on the spool with the eyelets in the string head housing.
 Cut one piece of trimmer line 10 ft. long. Insert the line
into the eyelet on the string trimmer housing. Push until
the end of the line comes out the other side of the string
head. Pull the line from the other side until equal amounts
of line appear on both sides of the spool.
 Rotate the spool clockwise to wind the line on the spool
until approximately 6 in. of line is showing on each side.
 Push the spool retainer down while pulling on line(s) to
manually advance the line and to check for proper as-
sembly of the string head.
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 be-
come 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 recom-
mend that only qualified service technicians perform this
service.
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 20.
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 cut-
ting attachment movement. If the cutting attachment still
moves at idle speed, contact a service dealer for adjustment
and discontinue use until the repair is made.
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MAINTENANCE
11 — English
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 could result
from the cutting attachment turning at idle.
CLEANING AIR FILTER SCREEN
See Figures 21 - 22.
For proper performance and long life, keep air filter screen
clean.
 Remove the air filter cover by pushing down on the latch
with your thumb while gently pulling on the cover.
 Brush the air filter screen lightly to clean.
 Replace the air filter cover by inserting the tabs on the
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
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 perfor-
mance. If performance improves when the fuel cap is loos-
ened, check valve may be faulty or filter clogged. Replace
fuel cap if required.
SPARK PLUG REPLACEMENT
This engine uses an Champion RY4C or Ryobi AC00164
spark plug with .025 in. electrode gap. Use an exact replace-
ment and replace annually.
CHANGING ENGINE LUBRICANT
See Figure 23.
For best performance, engine lubricant should be changed
after every 25 hours of operation.
To change the engine lubricant:
 Stop the engine and disconnect the spark plug wire. Allow
the engine to cool completely before proceeding.
 Remove the screw from the top engine cover and set
aside.
 Remove the screws from the bottom of the engine cover.
Remove the bottom cover and set aside.
 Remove the oil fill cap/dipstick.