Maintenance - Ryobi PLT-2543 Owner's Operation Manual

OPERATION
GRASS DEFLECTOR LINE TRIMMING CUT-
OFF BLADE (FIG. 7)
This s trimmer is equipped with a line trimming cut-off blade
on the grass deflector. For best cutting, advance string until
it is trimmed to length by the cut-off blade. Advance string
whenever you hear the engine running faster than normal.
This will maintain best performance and keep string long
enough to advance properly.
STARTING AND STOPPING (FIG. 8 & 9)
WARNING:
Never start or run the engine inside a closed or poorly
ventilated area; breathing exhaust fumes can kill.
TO START A COLD ENGINE:
1. Lay trimmer on a flat, bare surface. Move Ignition Switch (8)
to "I" (run) postion.
NOTE: Unit is equipped with a positive on-off switch. Make
sure switch is in the "I" (RUN) position before starting the
unit.
2. Push primer bulb (27) 4 times.
3. Set choke lever to choke position (31).
4. Depress throttle interlock (26), squeeze throttle trigger (4)
until engine tries to run. (No more than 3 pulls.)
5. Set choke lever to half choke position .
5. Hold trigger and pull starter grip until engine runs.
6. Run engine 30 to 45 seconds at full throttle with trigger
depressed fully) on half choke position (30) to warm up.
Move choke lever to run position (29).
TO START A WARM ENGINE:
1. Move choke lever to run position.
2. Hold trigger and pull starter grip (1) until engine runs.
TO START AND STOP THE ENGINE:
1. To stop the engine, depress the switch to "O" position.
NOTE: Be sure to return the stop switch to the "I" (RUN)
position before trying to start unit.

MAINTENANCE

WARNING:
Use only original manufacturer's replacement parts,
accessories and attachments. Failure to do so can
cause possible injury, poor performance and may
void your warranty.
You may make adjustments and repairs described here.
For other repairs, have the trimmer serviced by an
authorized servicing dealer.
Consequences of improper maintenance may 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.
SPOOL REPLACEMENT
EZ LINE™ TAP ADVANCE SYSTEM
NEW PREWOUND SPOOL (FIG. 10 & 11)
If replacing string only, refer to "String Replacement" later in
this manual.
Use only 2.0 mm (.080 in.) diameter monofilament string.
Use the manufacturer's replacement string for best perfor-
mance.
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer (33). Turn
anti-clockwise.
2. Remove the empty spool from the string head. Keep the
spring (38) attached to the spool ( 34).
3. To install the new spool, make sure the two strings are
captured in the slots opposite each other on the new
spool. Make sure the ends of each string is extended
approximately 152 mm (6 in.) beyond each slot.
4. Thread the strings into the eyelets (35) in the string head (36).
Carefully push the spool into the string head (gently pull
the strings to the outside if necessary). When the spool
is positioned in the string head, grasp the strings and pull
sharply to release them from the slots (37)in the spool.
5. Push down and turn the spool counterclockwise until it
no longer turns. Hold the spool down and rotate clock-
wise a small amount. Release the spool. The spool
should be locked down in the string head. If not, hold
down and rotate until locked.
6. Make sure the string head and the spool retainer are
installed on the connector (32) by turning the retainer
clockwise to tighten.
7. Pull the strings again to rotate the spool into cutting
position. Push the spool retainer down while pulling on
string(s) to manually advance the string and to check for
proper assembly of the string head.
STRING REPLACEMENT (FIG. 12 - 15)
1. Stop the engine, disconnect the spark plug wire.
Hold the string head and unscrew the spool retainer.
Turn anticlockwise.
2. Remove the spool from the string head. NOTE:
Keep the spring attached to the spool. Remove any
old string remaining on the spool.
- 4 -