Ryobi 766r manual Operating Instructions, Holding the Trimmer Adjusting Trimming Line Length

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OPERATING INSTRUCTIONS

HOLDING THE TRIMMER

ADJUSTING TRIMMING LINE LENGTH

WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit.

Before operating the unit, stand in the operating position (Figs. 10). Check for the following:

The operator is wearing eye protection and proper clothing.

The right arm is slightly bent, and the hand is holding the shaft grip.

The left arm is straight, and the hand is holding the handle.

The unit is below waist level.

The cutting attachment is parallel to the ground and easily contacts the vegetation to be cut without the operator having to bend over.

The Bump Head™ cutting attachment allows you to release trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground (Fig. 11) while operating the trimmer at high speed.

NOTE: Always keep the trimming line fully extended. Line release becomes more difficult as cutting line becomes shorter.

 

Fig. 11

 

Each time the head is bumped, about 1 in.

 

(25.4 mm.) of trimming line is released. A blade

 

in the cutting attachment shield will cut the line

 

to the proper length if excess line is released.

 

For best results, tap the Bump Head™ on bare

 

ground or hard soil. If line release is attempted

 

in tall grass, the engine may stall. Always keep

 

the trimming line fully extended. Line release

 

becomes more difficult as the cutting line

 

becomes shorter.

Fig. 10

NOTE: Do not rest the Bump Head™ on

 

the ground.

 

CAUTION: Do not remove or alter

 

the line cutting blade assembly.

 

Excessive line length will make the

 

clutch overheat. This may lead to

 

serious personal injury or damage to

 

the unit.

Some line breakage will occur from:

Entanglement with foreign matter

Normal line fatigue

Attempting to cut thick, stalky weeds

Forcing the line into objects such as walls or fence posts

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Contents OPERATOR’S Manual Introduction Table of ContentsSpark Arrestor California Emission RegulationsSymbol Meaning Safety Warnings for GAS TrimmersRules for Safe Operation Before OperatingWhile Operating Other Safety Warnings Sharp Blade Do not USE Blades Indicates OIL HOT Surface WarningChoke Control Full Choke position Partial Choke positionKnow Your Unit Application Installing and Adjusting the D-HANDLE Assembly InstructionsGrip Wing Nut Bolt Washer Shield Installing the Cutting Attachment ShieldShield Mount Cutting Attachment ScrewsUsing Fuel Additives Using Blended FuelsOIL and Fuel Information OIL and Fuel Mixing InstructionsStarting Instructions STARTING/STOPPING InstructionsStopping Instructions Operating Instructions Holding the Trimmer Adjusting Trimming Line LengthMaintenance Schedule Maintenance and Repair InstructionsFrequency Maintenance Required Refer to Tips for Best Trimming ResultsWinding the Existing Inner Reel Line InstallationOuter Spool Inner Reel Shaft Spring Bump KnobHolding Slots AIR Filter Maintenance Installing a Prewound ReelRemoving the Air Filter/Muffler Cover Choke Lever Partial Choke Position B ScrewsReinstalling the Air Filter/Muffler Cover Cleaning the Air FilterAir Filter Clean Air Filter Carburetor AdjustmentAdjust Idle Speed Screw Check Fuel MixtureReplacing the Spark Plug ACCESSORIES/REPLACEMENT Parts110-120 in.lb .3-13.5 Nm 020Cleaning Cleaning and StorageStorage Long Term StorageProblem Cause Action TroubleshootingEngine SpecificationsDrive Shaft & String Head Page Owners Warranty Responsibilities Ryobi Outdoor Products Limited TWO-YEAR WarrantyRyobi Canada INC Save These Instructions for Future Reference