Ryobi RY28160 Manuel D'utilisation page 16

WARNING:
When servicing, use only identical replacement parts.
Use of any other parts could 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 could 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.
SPOOL REPLACEMENT REEL-EASY™ TAP
ADVANCE SYSTEM
See Figures 20 - 22.
If replacing line only, refer to Line Replacement later in this
manual.
Use only .095 in. trimmer line.
 Stop the engine and disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer.
To remove the spool retainer:
Turn the spool retainer clockwise.
 Remove the empty spool from the string head.
NOTE: It is not necessary to remove the string head
housing from the drive shaft.
 Insert the new spool into the string head.
NOTE: Make sure the arrows on the spool are aligned
with the eyelets in the string head housing. Push down
MAINTENANCE
and hold the spool and housing together while complet-
ing the installation.
 Reinstall the spool retainer to secure.
To install the spool retainer:
Turn the spool retainer counterclockwise.
 Install line as described in Line replacement.
LINE REPLACEMENT
See Figures 22 - 24.
 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 20 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, MUFFLER,
AND SPARK ARRESTOR
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.
The spark arrestor must be cleaned or replaced every 50
hours or yearly to ensure proper performance of your prod-
uct. Spark arrestors 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 25.
The blade/cutting head will move when adjusting the
idle speed. Wear all protective clothing and keep all by-
standers, children, and pets at least 50 ft. away. Make
adjustments with the unit supported by hand so that the
blade/cutting head does not contact the ground or any
object. Keep all parts of your body away from the blade/
cutting head and muffler. Failure to follow these instruc-
tions could result in serious personal injury.
If the cutting attachment turns at idle, the idle speed screw
needs adjusting on the engine. Turn the idle speed screw
12 — English
WARNING: