Specifications for a Ryobi 780R

Specfications

• The Ryobi 780R Trimmer/Brushcutter uses gasoline to operate, and it is a type of string trimmer, which uses a high-speed rotating string as the cutting blade. You can also change out the string trimmer with the brushcutter attachment, which uses blades for cutting down thick weeds and small bushes. This is a two-cycle, air-cooled engine, and it requires a mixture of one gallon unleaded gasoline and one 3.2 ounce of 2-cycle oil for fuel. The engine displacement on this is 1.9 cubic inches, and this is the total length that the pistons can travel within the cylinder. The idle speed of the engine is between 2,800 and 4,000 revolutions per minute (rpm), and it has an operating speed of 7,200 rpm.

Cutting

• This trimmer has a line spool diameter of four inches, and the cutting path for the cutting attachment is 18 inches. The cutting path diameter for the cutting blade is 8 inches. The line spool diameter is four inches, and the trimming line is 0.0095 inches in diameter.

Body

• The Ryobi 780R Trimmer/Brushcutter comes with a shoulder harness that attaches via a quick-snap. The trimmer has both a back and front handle, which helps reduce vibrations. The throttle control is located on the handle along with the start button and the throttle lock-out.

Maintenance

• Always fill the fuel tank with fresh fuel before starting up the engine, and clean out the air filter after every 10 hours of use. Clean out the spark plugs and arrestor after ever 25 hours of operation, and check to make sure that your spark arrestor and exhaust port are not clogged after every 50 hours of use.

Safety

• Ryobi recommends that you always use the shoulder harness while operating your trimmer to better control the trimmer. Do not cut material over 30 inches high, and do not cut objects thicker than ½ inch. Always replace faulty items like spark arrestors and mufflers to keep the trimmer from catching on fire. Remove clogs and debris from your trimmer to keep it from overheating. Always turn off the trimmer before replacing any components. Always shut off the trimmer before changing out the attachments.