Ryobi PBC3046E Operator's Manual page 21

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.
String will not advance:
Grass wraps round shaft
housing and string
head:
Spool retainer hard
to turn:
Oil drips from silencer:
NOTE: The carburettor adjustment needle(s) are equipped
with plastic cap(s) which prevent anticlockwise rotation from
the original factory adjustment. If your unit exhibits specific
performance problem(s) where the Troubleshooting Section
recommends an anticlockwise needle adjustment and no
adjustments have been made since original purchase, the
unit should be taken to a factory-authorised service dealer
for repair. In most cases, the needed adjustment is a simple
task for the factory-trained service representative.
TROUBLESHOOTING
1. String welded to itself.
2. Not enough string on spool.
3. String worn too short.
4. String tangled on spool.
5. Engine speed too slow.
1. Cutting tall grass at ground
level.
2. Operating trimmer at part
throttle.
Screw threads dirty or
damaged.
1. Operating trimmer at part
throttle.
2. Check oil/fuel mixture.
3. Air filter dirty.
4. Carburettor requires adjust-
ment.
1. Lubricate with silicone spray.
2. Install more string. Refer to "String Replacement"
earlier in this manual.
3. Pull strings while alternately pressing down on and
releasing spool retainer.
4. Remove string from spool and rewind. Refer to "String
Replacement" earlier in this manual.
5. Advance string at full throttle.
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Clean threads and lubricate with grease - if no improve-
ment, replace spool retainer.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-cycle oil mix.
3. Clean per instruction in Maintenance Section.
4. Turn "H" needle clockwise 1/16 - 1/8 turn. See Figure 27.
IDLE SPEED
SCREW
"L" LO
NEEDLE
"H" HIGH
NEEDLE
21
Fig. 27