Troubleshooting - Ryobi RY5020 Manuel D'utilisation

Problem
Engine starts, runs, Carburetor requires
and accelerates adjustment to idle
but will not idle. speed.
C h a i n t u r n s a t Carburetor requires
idle. adjustment to idle
speed.
Air leak in the intake
system.
B a r a n d c h a i n Chain oil tank empty.
running hot and
Chain tension is too
smoking.
tight.
Oiler is not
functioning.
Engine starts and Chain brake is
runs, but chain is engaged.
not rotating.
Chain tension is too
tight.
Guide bar and
chain assembled
incorrectly.
Guide bar and/or
chain are damaged.
Drive sprocket teeth
damaged
If problem persists after trying the above solutions, contact customer service or a qualified service
center for assistance.
NOTICE:
As the equipment owner, you are responsible for the performance of the required maintenance listed
in the Maintenance section. It is recommended that you retain all receipts covering maintenance on
your equipment. Neglecting or failing to perform the required maintenance may increase emissions,
decrease fuel efficiency, degrade performance, cause irreversible engine damage and/or void your
warranty.

TROUBLESHOOTING

Possible Cause
Page 39 — English
Turn idle speed screw "T" clockwise to increase idle
speed. Refer to Adjusting the Carburetor in the
Maintenance section of this manual.
Turn idle speed screw "T" counterclockwise to de-
crease speed. Refer to Adjusting the Carburetor in
the Maintenance section of this manual.
Contact an authorized service center for a rebuild kit.
Oil tank should be filled every time fuel tank is filled.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Run at half throttle 30 to 45 seconds. Stop saw and
check for lubricant dripping from SAFE-T-TIP™ and
guide bar. If lubricant is present, the chain may be dull
or bar may be damaged. If no lubricant is on the SAFE-
T-TIP™, contact an authorized service center.
Release chain brake. Refer to Operating the Chain
Brake in the Operation section of this manual.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Refer to Replacing the Guide Bar and Chain in the
Maintenance section of this manual.
Inspect guide bar and chain for damage.
Contact an authorized service center for drive sprocket
replacement.
Solution