background image

9. Place the spring in the inner reel. Insert the

ends of the line through the eyelets in the
outer spool and place inner reel inside the
outer spool (Fig. 35). Push the inner reel and
outer spool together. While holding the inner
reel and outer spool, grasp the ends and pull
firmly to release the line from the holding
slots in the spool.

NOTE:

The spring must be assembled on 
the inner reel before reassembling 
the cutting attachment.

MAINTENANCE AND REPAIR INSTRUCTIONS

22

7. Wind the lines in tight even layers, onto the

reel (Fig. 33). Wind the line in the direction
indicated on the inner reel. Place your index
finger between the two lines to stop the lines
from overlapping. Do not overlap the ends 
of the line. 

NOTE:

Failure to wind the line in the direction
indicated will cause the cutting
attachment to operate incorrectly.

8. Insert the ends of the line into the two

holding slots (Fig. 34).

Fig. 33

Fig. 34

Fig. 35

Fig. 32

6. Take approximately 25 feet (7.6 m) of new

trimming line, loop it into two equal lengths.
Insert each end of the line through one of the
two holes in the inner reel (Fig. 32). Pull the
line through the inner reel so that the loop is
as small as possible.

NOTE:

Always use the correct line length
when installing trimming line on the
unit. The line may not release properly
if the line is too long.

10.Hold the inner reel in place and install the

Bump Knob™ by turning counterclockwise.
Tighten securely.

Holding Slots

Содержание 780r

Страница 1: ...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 OPERATOR S MANUAL 2 Cycle Gas Trimmer Brushcutter 780r 790r...

Страница 2: ...4 651 422 4 505 040 4 463 498 4 369 742 4 342 236 4 223 441 2 125 688 D 249 012 D 239 329 OTHER PATENTS PENDING INTRODUCTION 2 TABLE OF CONTENTS I California Emission Regulations 3 II Rules for Safe...

Страница 3: ...ory equipped with a spark arrestor If these items are required in your area ask your LOCAL SERVICE dealer to install the Optional Accessory Part 180030 Spark Arrestor Kit FOR QUESTIONS CALL 1 800 345...

Страница 4: ...utting 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 th...

Страница 5: ...sure the cutting attachment is not in contact with anything before starting the unit Use the unit only in daylight or good artificial light Avoid accidental starting Be in the starting position whene...

Страница 6: ...t are bent warped cracked or broken Do not sharpen the cutting blade Sharpening the blade can cause the blade tip to break off while in use This can result in severe personal injury Replace the blade...

Страница 7: ...conjunction with other symbols or pictographs PRIMER BULB Push primer bulb fully and slowly 5 to 7 times KEEP BYSTANDERS AWAY WARNING Keep all bystanders especially children and pets at least 50 feet...

Страница 8: ...When turned off they remain hot for a short time TRIMMER BRUSHCUTTER SAFETY WARNING Thrown objects and rotating cutter can cause severe injury Keep bystanders especially children and pets at least 50...

Страница 9: ...light bush of up to 1 2 inch in diameter Other accessories may be used with the 790r See list of add ons on page 17 Handle Hardware Primer Bulb Air filter Muffler Cover Fuel Cap Throttle Control Powe...

Страница 10: ...d correctly 3 Place the clamps and j handle the over the shaft housing and onto the bottom clamp 4 Hold each hex nut in the bottom clamp recess with a finger Start screws with a large Phillips screwdr...

Страница 11: ...ld should NOT be installed when operating the unit with a blade Remove the cutting attachment shield before removing or installing the blade Remove the cutting attachment shield from the shield mount...

Страница 12: ...on a work bench Remove the Cutting Attachment Shield See Removing and Installing Cutting Attachment Shield Pg 11 Remove the Cutting Attachment WARNING The gear housing gets hot with use and can resul...

Страница 13: ...t or operate this unit with the locking rod in the locking rod slot 10 Remove the cutting blade cover by un snapping the plastic lock on the cover and pulling it from the blade Store the cover for fut...

Страница 14: ...E CUTTING BLADE AND INSTALL THE CUTTING ATTACHMENT Remove the Cutting Blade WARNING To avoid serious personal injury always wear gloves while handling or installing the blade 1 Install the cutting bla...

Страница 15: ...oose to use a blended fuel or its use is unavoidable follow recommended precautions Always use fresh fuel mix per your operator s manual Use the fuel additive STA BIL or an equivalent Always agitate t...

Страница 16: ...on Fig 18 STARTING INSTRUCTIONS WARNING Avoid accidental starting Be in the starting position when pulling the starter rope Fig 20 The operator and unit must be in a stable position while starting to...

Страница 17: ...these optional add ons Blower Vacuum BV720r Cultivator GC720r Edger LE720r Hedgetrimmer HS720r Snowthrower ST720r Straight Shaft Trimmer SS725r Sweeper Blower SB720r Tree Pruner TP720r Turbo Blower T...

Страница 18: ...und 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 NO...

Страница 19: ...trimming is accomplished by removing all vegetation around trees posts fences etc Rotate the whole unit so that the cutting attachment is at a 30 angle to the ground Fig 26 OPERATING INSTRUCTIONS 19...

Страница 20: ...ols or skills If you are unsure about these procedures take your unit to an authorized service dealer MAINTENANCE SCHEDULE These required maintenance procedures should be performed at the frequency st...

Страница 21: ...lt inside the Bump Knob to make sure it moves freely Replace the Bump Knob if damaged NOTE A Bump Knob Part 180814 can be purchased from you local authorized dealer 4 Use a clean cloth to clean the th...

Страница 22: ...er between the two lines to stop the lines from overlapping Do not overlap the ends of the line NOTE Failure to wind the line in the direction indicated will cause the cutting attachment to operate in...

Страница 23: ...he inner reel and outer spool together While holding the inner reel and outer spool grasp the ends and pull firmly to release the line from the holding slots in the spool 7 Hold the inner reel in plac...

Страница 24: ...o not over tighten Do not force 4 Apply enough clean SAE 30 oil to lightly coat the filter Fig 39 5 Squeeze the filter to spread and remove excess oil Fig 40 Air Filter 3 Wash the filter in detergent...

Страница 25: ...prevent serious personal injury If after checking the fuel mixture and cleaning the air filter the engine still will not idle adjust the idle speed screw as follows 1 Start the engine and let it run a...

Страница 26: ...e air gap at 0 020 in 0 5 mm using a feeler gauge Fig 42 CAUTION Do not sand blast scrape or clean electrodes Grit in the engine could damage the cylinder 4 Install a correctly gaped spark plug in the...

Страница 27: ...ventilated area Store the unit out of the reach of children LONG TERM STORAGE If the unit will be stored for an extended time use the following storage procedure 1 Drain all fuel from the fuel tank a...

Страница 28: ...switch to ON Fill fuel tank Press primer bulb fully and slowly 5 7 times Use starting procedure with choke lever in the RUN position Pg 16 Drain fuel tank Add fresh fuel mixture Replace or clean the...

Страница 29: ...tarter Auto Rewind Muffler Baffled with Guard Throttle Manual Spring Return Fuel Tank Capacity 18 oz 530 ml Fuel Tank HD Polyethylene DRIVE SHAFT CUTTING ATTACHMENT Drive Shaft Housing Steel Tube Thro...

Страница 30: ...NOTES 30...

Страница 31: ...he engine or equipment is delivered to the retail purchaser The manufacturer warrants to the initial owner and each subsequent purchaser that the engine is free from defects in material and workmanshi...

Страница 32: ...tion this warranty does not cover A Tune ups Spark Plugs Carburetor Adjustments Filters B Wear items Bump Knobs Outer Spools Cutting Line Inner Reels Starter Pulley Starter Ropes Drive Belts RYOBI res...

Отзывы: