Maintenance; Entretien / Mantenimiento; General Maintenance - Ryobi RY42WB Manual Del Operador

Normal maintenance, replacement or repair of emission con-
trol 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:
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.
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:
When servicing, use only recommended or equivalent
replacement parts. Use of any other parts could create
a hazard or cause product damage.
NOTICE:
Periodically inspect the entire product for damaged,
missing, or loose parts such as screws, nuts, bolts, caps,
etc. Tighten securely all fasteners 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.

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 can result in serious personal injury.

MAINTENANCE

CLEANING THE AIR FILTER
See Figure 8.
Clean the air filter as indicated by the maintenance schedule.
To clean the air filter:
 Remove the two screws.
 Remove the air filter cover.
 Remove the air filter.
 Lightly tap or blow out dirt particles from filter.
 Reinstall the air filter.
NOTE: Make sure the filter is seated properly inside the
cover. Installing the filter incorrectly will allow dirt to enter
the engine, causing rapid engine wear.
 Reinstall the cover.
 Replace and tighten the two screws to secure.
NOTE: For best performance, the air filter should be re-
placed once each year.
SPARK PLUG
This engine uses a Champion RCJ4 or equivalent spark plug
with .025 in. electrode gap. Use a recommended or equiva-
lent replacement and replace annually, or more frequently
if necessary.
NOTICE:
Be careful not to cross-thread the spark plug. Cross-
threading will seriously damage the product.
CLEANING THE EXHAUST PORT
NOTICE:
The spark arrestor on this product has not been evalu-
ated by the USDA Forest Service and cannot be used on
U.S. forest lands. In addition, product users must comply
with Federal, State, and local fire prevention regulations.
Check with appropriate authorities. Contact customer
service or a qualified service center to purchase a re-
placement spark arrestor.
NOTE: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions, the
exhaust port, muffler, and/or spark arrestor screen may be-
come blocked with carbon deposits. If you notice a power
loss with your gas powered tool, you may need to remove
these deposits to restore performance. We highly recommend
that only qualified service technicians perform this service.
The spark arrestor must be cleaned or replaced every 50
hours or yearly to ensure proper performance of your prod-
uct. Spark arrestors may be in different locations depending
on the model purchased. Please contact your nearest service
dealer for the location of the spark arrestor for your model.
10 — English