Ryobi RY09550, Operator'S Manual, Page: 12 / 42

10 - English
WARNING:
When servicing, use only identical replacement parts.
Use of any other parts may 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 protection.
Failure to do so could result in objects being thrown into
your eyes and other possible serious injuries.
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.
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 may result in serious personal
injury.
OPERATION
 Move the blower/vacuum from side to side along outer
edge of the debris. To avoid clogging, do not place the
vacuum tube directly into the debris pile.

Hold the engine higher than the inlet end of the vacuum
tube.
 Always point vacuum tube downhill when working on a
hillside.

To avoid serious injury to the operator or damage to the
unit, do not pick up rocks, broken glass, bottles, or other
similar objects.

If the vacuum tubes should clog, stop the engine , ensure
impeller blades have stopped spinning, and disconnect
the spark plug wire before cleaning out the obstruction.

Remove the vacuum tubes and clear the debris from the
blower fan housing. Remove the bag and clear the tube.
A small rod or stick may be required to clear the entire
tube length. Ensure that all debris has been cleared before
reassembling the vacuum tubes.
MAINTENANCE
You can often make adjustments and repairs described here.
For other repairs, have the blower/vacuum serviced by an
authorized service dealer.
CLEANING THE AIR FILTER
See Figure 12 - 13.
For proper performance and long life, keep air filter clean.
 Remove the air filter cover by turning the dial counter
clockwise while gently pulling on the cover.

Rinse filter with clean water.
 Gently squeeze filter until excess water is removed.
Replace filter.

Place the air filter cover back on the unit. Turn dial
clockwise until cover is secure.
CLEANING THE EXHAUST PORT, MUFFLER
AND 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
become 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
product. 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.
WARNING:
To avoid a fire hazard, never run the blower/vacuum
without the spark arrestor in place.