Maintenance - Ryobi RY42WB Operator's Manual

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.

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.
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.
CLEANING THE AIR FILTER
See Figure 8.
Clean the air filter as indicated by the maintenance schedule.
To clean the air filter:
 Remove the air filter cover by pressing the latch while
gently pulling on the 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.
 Place the air filter cover back on the unit. Push the cover
down until it snaps securely in place.
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.
10 — English