Maintenance - Ryobi RY28021 Operator's Manual

ADVANCING THE STRING MANUALLY
With the engine off and the spark plug wire disconnected,
push the spool retainer down while pulling on string(s) to
manually advance the string.
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 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.
OPERATION
GRASS DEFLECTOR LINE TRIMMING CUT-OFF
BLADE
See Figure 13.
The trimmer is equipped with a line trimming cut-off blade on
the grass deflector. For best cutting, advance line until it is
trimmed to length by the cut-off blade. Advance the line when-
ever you hear the engine running faster than normal, or when
trimming efficiency diminishes. This will maintain best perfor-
mance and keep the line long enough to advance properly.

MAINTENANCE

SPOOL REPLACEMENT
REEL-EASY
See Figures 14 - 16.
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 counterclockwise for 26CS.
Turn the spool retainer clockwise for 26SS.
 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
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 clockwise for CS26.
Turn the spool retainer counterclockwise for SS26.
 Install line as described in LINE REPLACEMENT.
LINE REPLACEMENT
See Figures 16 - 18.
 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.
10 — English
TAP ADVANCE SYSTEM
™