General Maintenance; Lubrication - Ryobi RY10521B Manuel D'utilisation

Normal maintenance, replacement or repair of
emission control devices and systems may be
performed by any qualified repair establishment
or individual with original or equivalent parts.
Warranty and recall repairs must be performed
by an authorized service center; please contact
customer service for assistance.
WARNING:
Make sure the on/stop switch is in the
STOP " " position and the chain has stopped
before performing any maintenance on the saw.
Failure to do so may result in serious personal
injuries.
WARNING:
Muffler surfaces are very hot during and after
operation of the chain saw; keep all body parts
away from the muffler. Serious burns could
occur if contact is made with the muffler.
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 and head protection. Failure to do so
could result in objects being thrown into your
eyes and other possible serious injuries.
NOTICE:
Periodically inspect the entire product for dam-
aged, missing, or loose parts such as screws,
nuts, bolts, caps, etc. Tighten securely all fas-
teners and caps and do not operate this product
until all missing or damaged parts are replaced.
Please contact customer service or a qualified
service center for assistance.
MAINTENANCE

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.
Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils,
etc., come in contact with plastic parts. Chemi-
cals can damage, weaken or destroy plastic
which may result in serious personal injury.

LUBRICATION

All of the bearings in this product are lubricated with
a sufficient amount of high grade lubricant for the
life of the unit under normal operating conditions.
Therefore, no further lubrication is required.
REPLACING THE GUIDE BAR AND
CHAIN
See Figures 34 - 43.
Never start the engine before installing the
guide bar, chain, clutch cover, and clutch drum.
Without all these parts in place, the clutch can
fly off or explode, exposing the user to possible
serious injury.
To avoid serious personal injury, read and under-
stand all the safety instructions in this section.
 Always place the on/stop switch in the STOP
(
 Make sure the chain brake is not set by pulling
the chain brake lever/hand guard towards the
front handle to the run position.
NOTE: When replacing the guide bar and chain,
always use the specified bar and chain listed in
the Bar and Chain Combinations section later
in this manual.
 Wear gloves when handling the chain and bar.
These components are sharp and may contain
burrs.
Page 24 — English
WARNING:
DANGER:
WARNING:
) position before you work on the saw.