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RULES FOR SAFE OPERATION

4

DANGER

: Failure to obey a safety warning

will result in serious injury to yourself or to
others. Always follow the safety precautions
to reduce the risk of fire, electric shock, and
personal injury.

WARNING

: Failure to obey a safety warning

can result in injury to yourself and others.
Always follow the safety precautions to
reduce the risk of fire, electric shock, and
personal injury. 

CAUTION:

Failure to obey a safety warning

may result in property damage or personal
injury to yourself or to others. Always follow
the safety precautions to reduce the risk of
fire, electric shock, and personal injury.

The purpose of safety symbols is to attract your atten-
tion to possible dangers. The safety symbols, and their
explanations, deserve your careful attention and 
understanding. The safety warnings do not by them-
selves eliminate any danger. The instructions or 
warnings they give are not substitutes for proper acci-
dent prevention measures.

SYMBOL

MEANING

SAFETY ALERT SYMBOL:

Indicates dan-

ger, warning, or caution. Attention is required
in order to avoid serious personal injury. May
be used in conjunction with other symbols or
pictographs. 

NOTE:

Advises you of information or instructions vital

to the operation or maintenance of the equipment.

READ ALL INSTRUCTIONS BEFORE 
OPERATING

Read the instructions carefully. Be familiar with the
controls and proper use of the unit.

Do not operate this unit when tired, ill, or under the
influence of alcohol, drugs, or medication.

Children and teens under the age of 15 must not use
the unit, except for teens guided by an adult.

Inspect the unit before use. Replace damaged parts.
Check for fuel leaks. Make sure all fasteners are in
place and secure. Replace cutting attachment parts
that are cracked, chipped, or damaged in any way.
Make sure the cutting attachment is properly
installed and securely fastened. Be sure the cutting
attachment shield is properly attached, and 
positioned as recommended. Failure to so can result
in personal injury to the operator and bystanders, as
well as damage to the unit 

Use only 0.080 in (2.03 mm) diameter genuine Ryobi
replacement line. Never use metal-reinforced line,
wire, or rope, etc.. These can break off and become
a dangerous projectile. 

Be aware of the risk of injury to the head, hands and
feet.

Clear the area to be cut before each use. Remove all
objects such as rocks, broken glass, nails, wire, or
string which can be thrown or become entangled in
the cutting attachment. Clear the area of children,
bystanders, and pets. At a minimum, keep all 
children, bystanders and pets outside a 50 ft. (15 m.)
radius; there still may be a risk to bystanders from
thrown objects. Bystanders should be encouraged to
wear eye protection. If you are approached, stop the
engine and cutting attachment immediately.

Squeeze the throttle control and check that it returns
automatically to the neutral position. Make all 
adjustments or repairs before using unit.

SAFETY WARNINGS FOR GAS TRIMMERS

WARNING: 

Gasoline is highly flammable, and its vapors

can explode if ignited. Take the following precautions:

Store fuel only in containers specifically designed
and approved for the storage of such materials.

Avoid creating a source of ignition for spilled fuel. Do
not start the engine until fuel vapors dissipate.

Always stop the engine and allow it to cool before
filling the fuel tank. Never remove the cap of the fuel
tank, or add fuel, when the engine is hot. Never
operate the unit without the fuel cap securely in
place. Loosen the fuel tank cap slowly to relieve any
pressure in the tank.

Mix and add fuel in a clean, well-ventilated area 
outdoors where there are no sparks or flames.
Slowly remove the fuel cap only after stopping
engine. Do not smoke while fueling or mixing fuel.
Wipe up any spilled fuel from the unit immediately. 

Move the unit at least 30 ft. (9.1 m) from the fueling
source and site before starting the engine. Do not
smoke, keep sparks and open flames from the area
while adding fuel or operating the unit.

WHILE OPERATING

Never start or run the unit inside a closed room or
building. Breathing exhaust fumes can kill. Operate
this unit only in a well ventilated area outdoors. 

Wear safety glasses or goggles that are marked as
meeting ANSI Z87.1-1989 standards, and 
ear/hearing protection when operating this unit.
Wear a face or dust mask if the operation is dusty.
Long sleeve shirts are recommended.

Wear heavy, long pants, boots and gloves. Do not
wear loose clothing, jewelry, short pants, sandals or
go barefoot. Secure hair above shoulder level.

The cutting attachment shield must always be in
place while operating the unit as a trimmer. Do not
operate unit without both trimming lines extended,
and the proper line installed. Do not extend the 
trimming line beyond the length of the shield.

• IMPORTANT SAFETY INFORMATION •

Summary of Contents for 768r

Page 1: ...768r Flail Head Trimmer OPERATOR S MANUAL FOR QUESTIONS CALL 1 800 345 8746 in U S or 1 800 265 6778 in CANADA www ryobi com IMPORTANT MANUAL DO NOT THROW AWAY...

Page 2: ...FOR WARRANTY SERVICE Make sure this manual is carefully read and understood before starting or operating this equipment THIS PRODUCT IS COVERED BY ONE OR MORE OF THE US PATENTS LISTED BELOW 5 076 149...

Page 3: ...ith a spark arrestor If it requires replacement ask your LOCAL SERVICE dealer to install the Accessory Part 180030 Spark Arrestor Kit FOR QUESTIONS CALL 1 800 345 8746 IN U S OR 1 800 265 6778 in CANA...

Page 4: ...e area to be cut before each use Remove all objects such as rocks broken glass nails wire or string which can be thrown or become entangled in the cutting attachment Clear the area of children bystand...

Page 5: ...f vegetation and other materials They may become lodged between the cutting attachment and shield To reduce fire hazard replace faulty muffler and spark arrestor keep the engine and muffler free from...

Page 6: ...tions in the operator s manual can result in serious injury Read the operator s manual before starting or operating this unit FOR SERVICE INFORMATION CALL USA 1 800 345 8746 CANADA 1 800 265 6778 WEAR...

Page 7: ...e SHARP BLADE WARNING Sharp blade on cutting attachment shield To prevent serious injury do not touch line cutting blade CHOKE CONTROL A FULL CHOKE position B PARTIAL CHOKE position C RUN position KEE...

Page 8: ...light brush of up to 1 2 inch in diameter RULES FOR SAFE OPERATION 8 Cutting Attachment Shield Gas Cap Throttle Control D Handle Line Cutting Blade Cutting Attachment Handgrip Primer Bulb Choke Lever...

Page 9: ...lder strap Always follow the starting procedures as described in the Operation section 1 Push the strap through the center of the buckle 2 Pull the strap over the cross bar and down through the slot i...

Page 10: ...ng the flail head ASSEMBLY INSTRUCTIONS 10 Hexagon Recess Pin Guides Hexagonal Recess Flail Blades 3 Press the Flail Head Bottom on by matching the pin guides with the Pivot Pins Fig 7 Fig 7 Fig 8 Fig...

Page 11: ...on the ground or on a work bench WARNING The gear housing gets hot with use and can result in injury to the operator When the unit is turned off it remains hot for a short time Do not touch the gear...

Page 12: ...according to the instructions on the container NEVER add fuel additives directly to the unit s fuel tank CAUTION For proper engine operation and maximum reliability pay strict attention to the oil an...

Page 13: ...gine sounds as though it wants to run normally 2 to 5 pulls NOTE Squeeze the throttle control until the engine has started and warmed up 6 Place the choke lever in the PARTIAL choke position B Fig 15...

Page 14: ...e fully extended Line release becomes more difficult as the cutting line becomes shorter NOTE Do not rest the Bump Head on the ground CAUTION Do not remove or alter the line cutting blade assembly Exc...

Page 15: ...e to the unit do not use the flail head assembly for decorative trimming or cutting brush Flail Head Operating Tips To establish a rhythmic cutting procedure Plant feet firmly comfortably apart Bring...

Page 16: ...Part 153066 can be purchased from your local authorized dealer Fig 21 2 Remove the inner reel from the outer spool Fig 22 Fig 23 5 Check the indexing teeth on the innerreel and outer spool for wear Fi...

Page 17: ...ase the line from the holding slots in the spool 7 Hold the inner reel in place and install the Bump Knob by turning clockwise Tighten securely Holding Slots 7 Wind the lines in tight even layers onto...

Page 18: ...oil to lightly coat the filter Fig 31 3 Wash the filter in detergent and water Fig 30 Rinse the filter thoroughly Squeeze out excess water Allow it to dry completely AIR FILTER MAINTENANCE Removing th...

Page 19: ...of the air filter before adjusting the idle speed screw Refer to Air Filter Maintenance Pg 18 5 Squeeze the filter to spread and remove excess oil Fig 32 Adjust Idle Speed Screw WARNING The cutting a...

Page 20: ...it to run until it stalls This ensures that all gasoline has been drained from the carburetor 3 Allow the engine to cool Remove the spark plug and put 1 oz 30 ml of any high quality motor oil into th...

Page 21: ...s tank Fill fuel tank Primer bulb wasn t pressed enough Press primer bulb fully and slowly 5 7 times Engine flooded Use starting procedure with choke lever in the RUN position Pg 13 Old or improperly...

Page 22: ...Starter Auto Rewind Muffler Baffled with Guard Throttle Manual Spring Return Fuel Tank Capacity 18 oz 530 ml Fuel Tank HD Polyethylene Drive Shaft Housing Steel Tube Throttle Control Finger Tip Trigge...

Page 23: ...800 345 8746 MANUFACTURER S WARRANTY COVERAGE The warranty period begins on the date the engine or equipment is delivered to the retail purchaser The manufacturer warrants to the initial owner and eac...

Page 24: ...al or workmanship will be repaired or replaced by an authorized RYOBI service dealer without charge for parts and labor The RYOBI Product including any defective part must be returned to an authorized...

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