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

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.

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.

10 - English

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Ryobi RY09951 General Maintenance, Cleaning the AIR Filter, Cleaning the Exhaust PORT, Muffler and spark arrestor, See
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RY09550, RY09951 specifications

The Ryobi RY09550 and RY09951 are innovative gas-powered string trimmers designed to tackle yard maintenance with efficiency and ease. Ryobi has established itself as a trusted name in outdoor power equipment, and these models exemplify the brand’s commitment to performance, durability, and user-friendly features.

The RY09550 is equipped with a powerful 30cc 2-cycle engine, delivering robust performance to handle tough vegetation. One of its key features is the Easy Start technology, which simplifies the starting process, allowing users to get to work quickly without the hassle of traditional pull-starts. This model also incorporates a bump feed line advancement system, ensuring that the trimmer line feeds automatically during use, which saves time and enhances productivity.

Additionally, the RY09550 offers a lightweight design at just over 10 lbs, making it easier for users to maneuver around their yards and gardens. Its adjustable straight shaft provides better reach for hard-to-access areas, allowing for efficient trimming along fences, landscapes, and other obstacles.

On the other hand, the RY09951 model steps up the game with its 40cc 2-cycle engine, providing even more power for heavy-duty trimming tasks. This model is particularly suited for tackling dense brush and overgrown vegetation, making it an excellent choice for more extensive properties or professional-grade applications. Like the RY09550, the RY09951 boasts Easy Start technology and a bump feed line system, but it takes user convenience a step further with an automatic choke and enhanced fuel efficiency.

Both models feature a comfortable grip and anti-vibration technology, reducing user fatigue during extended use. Furthermore, they come with a full set of safety features, including a guard that protects the user from debris while trimming.

In summary, the Ryobi RY09550 and RY09951 string trimmers combine power, convenience, and comfort, making them excellent choices for homeowners and professionals alike. Their efficient engines, user-friendly features, and durable construction ensure that yard maintenance is a breeze, allowing users to keep their lawns looking pristine with minimal effort. Whether you’re dealing with light weeding or heavy-duty trimming, these models provide the versatility and reliability needed to get the job done.
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