Ryobi Outdoor 454 User Manual

OPERATOR’S MANUAL

Rear Tine Tiller

Model 454

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

Warning:

covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

MTD LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

PRINTED IN U.S.A.

FORM NO.

769-00030A.fm

(12/2002)

TABLE OF CONTENTS

Content Page

Important Safe Operation Practices ...................................................................3

Assembling Your Tiller .......................................................................................5

Know Your Tiller .................................................................................................7

Operating Your Tiller ..........................................................................................8

Making Adjustments ...........................................................................................10

Maintaining Your Tiller........................................................................................10

Troubleshooting .................................................................................................12

Parts List ............................................................................................................14

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new Tiller. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.

Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below. The information on the model plate is very important if you need help from our Customer Support Department or an authorized dealer.

• You can locate the model number by standing in the operating position behind the unit and looking down at the center of the rear tine cover. A sample model plate is explained below. For future reference, please copy the model number and the serial number of the equipment in the space below.

Copy the model number here:

Copy the serial number here:

www.RyobiOutdoor.com

MTD LLC P. O. BOX 361131 CLEVELAND, OH 44136

330-558-7210 800-345-8746

ENGINE INFORMATION

The engine manufacturer is responsible for all engine-related issues with regards to performance, power-rating, specifications, warranty and service. Please refer to the engine manufacturer’s Owner’s/Operator’s Manual packed separately with your unit for more information.

CONTACTING CUSTOMER SUPPORT

If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department.

Call 1- (330) 558-7210 or 1- (800)-345-TRIM (8746) to reach a Customer Support representative. Please have your unit’s model number and serial number ready when you call. See previous section to locate this information. You will be asked to enter the serial number in order to process your call.

For more details about your unit, visit our website at www.ryobioutdoor.com

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

WARNING:

endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol - heed its warning.

This symbol points out important safety instructions which, if not followed, could

WARNING: Engine Exhaust, some of its constituents, and certain vehicle

components contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm.

DANGER

manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

This machine was built to be operated according to the rules for safe operation in this

Tra in ing

1. Read, understand, and follow all instructions on the machine and in the manual(s) before attempting to assemble and operate. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.

2. Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly.

3. Never allow children under 14 years old to operate this machine. Children 14 years old and over should read and understand the operation instructions and safety rules in this manual and should be trained and supervised by a parent.

4. Never allow adults to operate this machine without proper instruction.

5. Keep bystanders, helpers, pets and children at least 75 feet from the machine while it is in operation. Stop machine if anyone enters the area.

Preparation

1. Thoroughly inspect the area where the equipment is to be used. Remove all stones, sticks, wire, and other foreign objects which could be tripped over and cause personal injury.

2. Wear sturdy, rough-soled work shoes and close fitting slacks and shirt. Loose fitting clothes or jewelry can be caught in movable parts. Never operate this machine in bare feet or sandals.

3. Disengage clutch levers and shift (if provided) into neutral (“N”) before starting the engine.

4. Never leave this machine unattended with the engine running.

5. Never attempt to make any adjustments while engine is running, except where specifically recommended in the operator’s manual.

6. To avoid personal injury or property damage use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Serious personal injury can occur when gasoline is

spilled on yourself or your clothes which can ignite. Wash your skin and change clothes immediately.

7. Use only an approved gasoline container.

8. Extinguish all cigarettes, cigars, pipes and other sources of ignition.

9. Never fuel machine indoors.

10. Never remove gas cap or add fuel while the engine is hot or running.

11. Allow engine to cool at least two minutes before refueling.

12. Never over fill fuel tank. Fill tank to no more than ½ inch below bottom of filler neck to provide space for fuel expansion.

13. Replace gasoline cap and tighten securely.

14. If gasoline is spilled, wipe it off the engine and equipment. Move machine to another area. Wait 5 minutes before starting the engine.

15. Never store the machine or fuel container inside near an open flame, spark or pilot light (e.g. furnace, water or space heater, clothes dryer etc.).

16. Allow machine to cool 5 minutes before storing.

Operation

1. Do not put hands or feet near rotating parts. Contact with the rotating parts can amputate hands and feet.

2. Do not operate machine while under the influence of alcohol or drugs.

3. Never operate this machine without good visibility or light. Always be sure of your footing and keep a firm hold on the handles.

4. Keep bystanders, helpers, pets, and children at least 75 feet from the machine while it is in operation. Stop the machine if anyone enters the area.

5. Be careful when tilling in hard ground. The tines may catch in the ground and propel the tiller forward. If this occurs, let go of the handle bars and do not restrain the machine.

6. Exercise extreme caution when operating on or crossing gravel surfaces. Stay alert for hidden hazards or traffic. Do not carry passengers.

7. Never operate the machine at high transport speeds on hard or slippery surfaces.

8. Exercise caution to avoid slipping or falling.

9. Look down and behind and use care when in reverse or pulling machine towards you.

10. Start the engine according to the instructions found in this manual and keep feet well away from the tines at all times.

11. After striking a foreign object, stop the engine, disconnect the spark plug wire and ground against the engine. Thoroughly inspect the machine for any damage. Repair the damage before starting and operating.

12. Disengage all clutch levers and stop engine before you leave the operating position (behind the handles). Wait until the tines come to a complete stop before unclogging the tines, making any adjustments, or inspections.

13. Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

14. Muffler and engine become hot and can cause a burn. Do not touch.

15. Use caution when tilling near fences, buildings and underground utilities. Rotating tines can cause property damage or personal injury.

16. Do not overload machine capacity by attempting to till soil to deep at to fast of a rate.

17. If the machine should start making an unusual noise or vibration, stop the engine, disconnect the spark plug wire and ground it against the engine. Inspect thoroughly for damage. Repair any damage before starting and operating.

18. Keep all shields, guards and safety devices in place and operating properly.

19. Never pick up or carry machine while the engine is running.

20. Use only attachments and accessories approved by the manufacturer. Failure to do so, can result in personal injury.

21. If situations occur which are not covered in this manual, use care and good judgment. Contact your dealer or telephone 1-800-345-TRIM (8746) for assistance and the name of your nearest servicing dealer.

4. Do not change the engine governor settings or over-speed the engine. The governor controls the maximum safe operating speed of the engine.

5. Maintain or replace safety and instruction labels, as necessary.

6. Follow this manual for safe loading, unloading, transporting, and storage of this machine.

7. Never store the machine or fuel container inside where there is an open flame, spark or pilot light such as a water heater, furnace, clothes dryer etc.

8. Always refer to the operator’s manual for proper instructions on off-season storage.

9. If the fuel tank has to be drained, do this outdoors.

10. Observe proper disposal laws and regulations for gas, oil, etc. to protect the environment.

Your Responsibility

1. Restrict the use of this power machine to persons who read, understand and follow the warnings and instructions in this manual and on the machine.

2. The safety label on the tiller is reproduced below for your review. To ensure safe operation of the tiller, follow the instructions on all labels closely.

Maintenance & Storage

1. Never tamper with safety devices. Check their proper operation regularly.

2. Check bolts and screws for proper tightness at frequent intervals to keep the machine in safe working condition. Also, visually inspect machine for any damage.

3. Before cleaning, repairing, or inspecting, stop the engine and make certain the tines and all moving parts have stopped. Disconnect the spark plug wire and ground it against the engine to prevent unintended starting.

SECTION 2: ASSEMBLING YOUR TILLER

NOTE:

determined from behind the unit in the operating position.

References to right or left side of the tiller are

To Remove Unit From Carton

• Remove staples, break glue on top flaps, or cut

tape at carton end and peel along top flap to open carton.

• Remove loose parts included with unit (i.e.,

operator’s manual, etc.).

• Cut corners and lay carton down flat.

• Remove packing material.

• Roll or slide unit out of carton. Check carton

thoroughly for loose parts.

• Extend control cable and lay on the floor. Be careful

not to bend or kink control cable.

IMPORTANT:

in the engine. Be certain to service engine with gasoline and oil as instructed in the separate engine manual before operating your machine.

This unit is shipped without gasoline or oil

Loose Parts In Carton

Depth Stake

Handle Assembly

Shift Rod

NOTE:

to the loose parts or the tiller.

All hardware needed for assembly is attached

Before Assembly

Flat Washer

T-Knob

Clevis Pin

Depth Stake

Hex Bolt

Hairpin Clip

Figure 1

Attaching Handle Assembly

• Remove top two bolts and flange lock nuts from handle mounting brackets, but do not remove the bottom bolt and nut. See Figure 2.

• Place handle assembly in position between the handle mounting brackets.

• Line up holes in handle with holes in bracket and secure with hardware previously removed.

Remove

Handle Assembly

WARNING:

wire and ground it against the engine to prevent unintended starting.

Disconnect the spark plug

Attaching Depth Stake

• Tip the tiller forward so it rests on front counterweight.

• Unthread the “T” knob from the top of the depth stake and remove the flat washer and hex bolt. Remove the hairpin clip from the clevis pin. See Figure 1.

• Raise the tine shield hinge flap assembly and insert the depth stake assembly in the slot (under the tine shield) and up through the tine shield assembly.

• Insert clevis pin through the tine shield and depth stake assemblies. Secure with hairpin clip.

• Insert hex bolt into the top hole of the depth stake assembly. Place flat washer on the hex bolt and thread “T” knob onto the hex bolt. Tighten securely. See Figure 1.

• Tip the tiller back down so it rests on the tines.

Handle Bracket

Figure 2

Attaching Clutch Cable

Attach the clutch cable to the handle as follows:

(be careful not to kink the cable)

• Remove threaded eyebolt and nut from the end of the cable.

• Route the clutch cable to the right side of the handle mounting brackets and underneath the handle.

• Push the cable through the hole in the center of the handle and snap in the plastic fitting. See Figure 3.

Slot Head Screw, Nut, & Flat Washers

Internally Threaded Tube

• Remove hairpin clips from control rod, (rubber washers to remain on control rod).

• Insert the shorter, (angled), end of the control rod through the indicator bracket on the shift cover and secure with hairpin clip that was previously removed. See Figure 5.

• Insert the longer end of the control rod through the hole in the gear selector handle and secure with hairpin clip.See Figure 6.

Plastic Fitting

Figure 3

• Remove slot head screw, nut, and two flat washers from the clutch bail. See Figure 4.

• Fasten the threaded eyebolt onto bail by securing from top with slot head screw, flat washers and lock nut.

• Thread eyebolt and nut removed earlier into the internally threaded tube at the end of the cable. Thread engagement should be about 3/4”. Tighten nut against tube at end of cable. See Figure 4.

Clutch Control

Threaded Eyebolt

Slot Head Screw

Flat Washers

Nut

Rubber Washer

Idler Pulley Rod

Control Rod

Indicator Bracket

Hairpin Clip

Figure 5

Final Clutch Adjustment

IMPORTANT:

before checking this adjustment. Refer to the separate engine manual packed with your tiller for proper fuel and engine oil recommendations.

Position the tiller so the front counterweight is against a solid object, such as a wall. With the gear selection lever in NEUTRAL, start the engine. Refer to the separate engine manual.

Standing on the right side of the tiller, examine the belt (inside the belt cover). It should not be turning.

Service the engine with oil and gasoline

WARNING:

Do not put fingers under the

belt cover.

Internally Threaded Tube

Figure 4

NOTE:

Do not overtighten clutch cable. Too much

tension may cause it to break.

WARNING:

Be certain to check the clutch cable adjustment before operating the tiller.

Attaching Control Rod

• Make sure the handle assembly is in the highest position. Refer to Know Your Tiller section.

If the belt turns without bail engaged, adjust by unthreading the internally threaded tube at the end of the cable a few turns clockwise (when standing in operator’s position) and then retighten the nut against the tube.

Now move the shift lever to FORWARD position. Carefully engage the clutch by lifting the clutch control bail against the handle. The wheels should spin.

If the wheels do not spin with the unit in forward,

adjust by unthreading the tube at the end of the cable a few turns counter-clockwise (when standing in operator’s position) and then retighten the nut against the tube.

Recheck both adjustments, and readjust as necessary.

NOTE:

you reach the point that additional adjustment is needed. Remove the belt cover and move the hex nuts at the other end of the cable towards the end of the casing. Then readjust the hex nuts at the handle.

A secondary cable adjustment is available if

Tire Pressure

The tires on your unit may be over-inflated for shipping purposes. Reduce the tire pressure before operating the unit. Recommended operating tire pressure is approximately 20 p.s.i. (check sidewall of tire for tire manufacturer’s recommended pressure).

SECTION 3: KNOW YOUR TILLER

Gear Selection Handle

Handle Adjustment Lock

WARNING:

under any circumstances is 30 p.s.i. Equal tire pressure should be maintained on both tires.

Depth Stake

Maximum tire pressure

Clutch Control

Figure 6

Gear Selection Handle

The gear selection handle is located in the center of the handle on the tiller. It is used to select NEUTRAL, REVERSE, or one of the FORWARD mode. Pull or push the handle so that the indicator on top of shift cover points to the operating mode desired. See Figure 6.

Neutral

Transmission is in neutral.

Reverse

Reverse wheel drive.

Forward Modes

Wheels Forward: Forward wheel drive only.

Tines Reverse: Forward wheel drive and reverse tine

drive.

Tines Forward: Forward wheel and tine drive.

IMPORTANT:

virgin ground, sod, or hard soil. Use the forward tine drive when cultivating or tilling soft ground.

NOTE:

selection handle, refer to following helpful hints. To shift into forward or reverse wheel drive, move tiller forward slightly then backward to allow the gears to synchronize.

Use the reverse tine drive when tilling

If difficulty is encountered in moving the gear

To shift into forward wheels and tine drive, push forward slightly on the gear selection handle and slowly engage the clutch control allowing the gears to synchronize. To stop forward movement and tine drive, release the clutch control. Do not shift gears with the clutch control engaged except when engaging the tines.

WARNING:

NEUTRAL when starting the engine.

Make certain unit is in

Throttle Control

The throttle control lever is located on the engine. It controls the engine speed and stops the engine.

Choke Lever

The choke lever is located by the throttle. It is used to enrich the fuel mixture in the carburetor when starting a cold engine.

(If Equipped)

Clutch Control

The clutch control is located beneath the handle. Squeezing the clutch control against the handle engages the wheel and tine drive mechanisms.

NOTE:

Never engage clutch lever while shifting.

Handle Adjustment Lock

The handle may be adjusted to the height desired. Loosen the handle height adjustment lock a few turns. Pivot handle up or down to desired position. Tighten lock.

SECTION 4: OPERATING YOUR TILLER

WARNING:

follow all instructions and warnings on the machine and in this manual before operating.

Before Starting

Read, understand, and

Primer Button

The primer button is located behind the air cleaner. It is used to enrich the fuel mixture in the carburetor when starting a cold engine.

(If Equipped)

Depth Stake

The depth stake controls the tilling depth. Refer to ‘‘Setting the Depth’’ in the Operating Section.

Engine Controls

See the separate engine manual for additional information and functions of the engine controls.

• Place gear selection lever in NEUTRAL.

• Place the throttle control lever in FAST position or if

equipped, place the engine speed control in the START position.

• Move choke lever to CHOKE position or if equipped, push primer two (2) or three (3) times. Wait about two (2) seconds between each push.

Gas And Oil Fill-Up

Service the engine with gasoline and oil as instructed in the separate engine manual packed with your tiller. Read instructions carefully.

WARNING:

handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel machine indoors or while the engine is hot or running.

Use extreme care when

Starting Engine

NOTE:

will hear a ratcheting sound (gear noise) which is normal.

When pushing the unit with the engine off, you

WARNING:

in front of the tiller while the engine is running or being started.

Be sure no one is standing

NOTE:

be primed.

• Stand at side of tiller. Grasp the starter handle and

• Pull starter handle rapidly. Do not allow handle to

• Repeat previous steps until engine starts.

• As engine warms up and begins to operate evenly,

• Refer to engine manual for additional engine

NOTE:

first time, be certain to check the clutch adjustment as described in “Checking the Clutch Adjustment” section of the Assembly Instructions.

A warm engine may not require choking or to

pull out slowly, until it pulls slightly harder. Let rope rewind slowly.

snap back. Allow it to rewind slowly while keeping a firm hold on the starter handle.

move choke lever gradually to RUN position. If engine falters, return to choke position, then slowly move to RUN position.

information.

After starting and prior to using the tiller for the

To Stop Engine

• Move throttle control to STOP or OFF position.

• Disconnect spark plug wire and ground to prevent

accidentally starting while equipment is unattended.

NOTE:

the clutch adjustment. Refer to final clutch adjustment in Assembly Instructions.

After the first ten hours of operation, recheck

Setting The Depth

Tilling depth is controlled by the depth stake which can be adjusted to five different settings. Adjust the side shields as you adjust the depth stake.

WARNING:

disconnected and grounded against the engine when performing any adjustments.

• When using the tiller for the first time, use the second adjustment hole from the top (1" of tilling depth). See Figure 7.

Use This Position First Time

Clevis Pin

Be certain spark plug wire is

Transport Position

1”

3”

5”

7”

• When breaking up sod and for shallow cultivation, use the setting which gives 1" of tilling depth (second hole from the top). Place the side shields in their lowest position.

• For further depth, raise the depth stake and side shields and also make one or two more passes over the area.

• When tilling loose soil, the depth stake may be raised to its highest position (use bottom adjustment hole) to give the deepest tilling depth. Raise the side shields to their highest position.

• To transport tiller, lower the depth stake (use top adjustment hole).

To adjust the depth stake, remove the clevis pin and hairpin clip. Move the depth stake to the desired setting and secure with the clevis pin and hairpin clip. See Figure 7. To adjust the side shields, remove the wing nuts. Move the side shield to the desired position and replace the wing nuts. Tighten securely.

Operating the Tiller

• Select the depth stake setting.

• Start engine as instructed on the previous page.

• Move gear selection handle to one of the forward

modes or reverse.

WARNING:

selection handle with the wheels or tines engaged. Make certain the unit is stopped completely before changing the gear selection. A partial engagement may be necessary when engaging tines.

Do not move the gear

Use This Hole For Lowest (Shallowest) Position

Figure 7

Side Shields

Use This Hole For Highest (Deepest) Position

IMPORTANT:

virgin ground, sod, or hard soil. Use the forward tine drive when cultivating or tilling soft ground.

• Squeeze the clutch handle against the handle to engage the wheels and tines.

NOTE:

correctly positioned before engaging the clutch handle. If it is between gears, the engine will stall.

To transport tiller, do not engage the tines. Select the wheel drive only.

For best results, it is recommended the garden be tilled twice (lengthwise, then widthwise) to pulverize the soil.

Use the reverse tine drive when tilling

Make certain the gear selection indicator is

WARNING:

handles so that the wheels are lifted off the ground while using the tine drive, or the tiller could move backward and cause personal injury.

Do not push down on the

SECTION 5: MAKING ADJUSTMENTS

WARNING:

adjustments while the engine is running, except where specified in operator’s manual.

Never attempt to make any

Handle Adjustment

The handle height may be adjusted to the desired height. Refer to the handle adjustment in Know Your Tiller section.

Belt Tension Adjustment

Periodic adjustment of the belt tension may be required due to normal stretch and wear on the belt. Adjustment is needed if the tines or wheels seem to hesitate while turning, but the engine maintains the same speed.

To adjust the tension on the belt, refer to Final Clutch Adjustment in Assembly Instructions.

After belt tension has been adjusted, if the belt is excessively stretched, you may need to adjust the idler pulley rod. This can easily be checked.

With the engine off and the clutch control bail disengaged, shift the gear selection handle to each forward mode. If the indicator bracket touches the idler pulley rod (with the clutch control bail disengaged), then an adjustment is necessary.

• Disconnect and ground out spark plug wire against the engine.

• Remove the belt cover as described under Belt Replacement in the Maintenance section.

• Remove the hairpin clip and spring washer from the idler pulley rod. Refer to Figure 9.

• Move the idler pulley rod to the lower hole in the idler bracket.

• Replace the spring washer and hairpin clip.

• Check clearance of the idler pulley rod to the

indicator bracket by shifting to each forward mode, as before.

Engine Adjustment

Refer to the separate engine manual for engine adjustment instructions.

SECTION 6: MAINTAINING YOUR TILLER

WARNING:

wire and ground it against the engine before performing any repairs or maintenance.

Disconnect the spark plug

Engine

Refer to the separate engine manual for engine maintenance instructions.

Maintain engine oil as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.

Service air cleaner every ten hours under normal conditions. Clean every hour under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. To service the air cleaner, refer to the separate engine manual packed with your unit.

IMPORTANT:

completely assembled.

The spark plug should be cleaned and the gap reset every 25 hours of engine operation. Spark plug replacement is recommended at the start of each tiller season; check engine manual for correct plug type and gap specification.

Never run your engine without air cleaner

Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to permit proper air circulation which is essential to engine performance and life. Be certain to remove all dirt and combustible debris from muffler area.

Lubrication

Transmission

The transmission is pre-lubricated and sealed at the factory. It requires no checking unless the transmission is disassembled. To fill with grease, lay the right half of the transmission on its side, add 22 ounces of Benalene 920 grease, and assemble the left half to it. This grease can be obtained at your nearest authorized dealer by ordering part number 737-0300.

Clutch Handle

Lubricate the pivot point on the clutch handle and the cable at least once a season with light oil. The control must operate freely in both directions.

Pivot Points

Lubricate all pivot points and linkages at least once a season with light oil.

Tine Shafts

Remove tine assemblies and lubricate the tine shafts at least once a season.

Wheel Shafts

Remove wheel assemblies and lubricate the axle shafts at least once a season.

Cleaning Tine Area

Clean the underside of the tine shield after each use. The dirt washes off the tines easier if rinsed off immediately instead of after it dries. Always towel dry the tiller afterwards and apply a light coat of oil or silicone to prevent rusting or water damage.

IMPORTANT:

your tiller. Water can penetrate tight areas of the tiller and its chaincase and cause serious damage to the unit.

Never use a "pressure washer” to clean

Engine Pulley

Idler Pulley Rod

Belt Keeper Bracket

Figure 9

Idler Bracket

Belt Replacement

Your tiller has been engineered with a belt made of special material (Kevlar Tensile) for longer life and better performance. It should not be replaced with an off-the-shelf belt. Order all belts through you authorized service dealer.

• Disconnect and ground the spark plug wire against the engine.

• Remove the belt cover from the left side of the tiller by remove two torx screws from the top of belt cover. See Figure 8.

• Remove the hex cap nut and flat washer from the side of the belt cover and remove the self tap screw at the bottom of the front of the cover.

Torx Screws

Belt Cover

Hex Cap Nut & Flat Washer

Off-Season Storage

If the tiller will not be used for a period longer than 30 days, the following steps should be taken to prepare the tiller for storage.

• Clean the exterior of engine and the entire tiller thoroughly. Lubricate the tiller as described in the lubrication instructions.

• We do not recommend the use of pressure washers to clean your unit. They may cause damage to electric components, spindles, pulleys, bearings or the engine. The use of pressure washers will result in shortened life and reduce serviceability.

• Refer to the engine manual for correct engine storage instructions.

• Wipe tines with oiled rag to prevent rust.

• Store tiller in a clean, dry area. Do not store next to

corrosive materials, such as fertilizer.

NOTE:

an unventilated or metal storage shed, care should be taken to rustproof the equipment. Using a light oil or silicone, coat the equipment and especially any springs, bearings, and cables.

When storing any type of power equipment in

Self Tap Screw

Figure 8

• Remove the belt keeper bracket located behind the engine pulley by removing two hex bolts and lock washers. See Figure 9.

• Remove belt and reassemble new belt. Follow instructions in reverse order.

NOTE:

routed over the idler pulley and inside of belt keepers by engine pulley. See Figure 9.

Upon reassembly, make certain the belt is

SECTION 7: TROUBLE SHOOTING GUIDE

Trouble Possible Cause(s) Corrective Action

Engine fails to start

Engine runs erratic

Engine overheats

Tines do not engage

Tines skip over ground Wheels do not engage

Fuel tank empty, or stale fuel.

Throttle control lever not in correct starting position (if so equipped). Blocked fuel line. Dirty aircleaner. Choke not in ON position. Spark plug wire disconnected. Faulty spark plug. Engine flooded. Unit running on CHOKE. Spark plug wire loose. Blocked fuel line or stale fuel.

Vent in gas cap plugged. Water or dirt in fuel system. Dirty air cleaner. Carburetor out of adjustment. Engine oil level low. Dirty air cleaner. Air flow restricted. Carburetor not adjusted properly. Foreign object lodged in tines. Tine clevis pin(s) missing. Pulley and idler not in correct adjustment. Not shifting properly.

Control cable not adjusted properly. Belt worn and/or stretched. Improper rotation. Forward rotation should only be used on soil that has

Clevis pin missing. Tiller is not being shifted properly.

Control cable not adjusted properly. Belt worn and/or stretched.

Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Move throttle lever to start position.

Clean fuel line. Refer to the engine manual packed with your unit. Move switch to ON position. Connect wire to spark plug. Clean, adjust gap or replace. Refer to the engine manual packed with your unit. Move choke lever to OFF position. Connect and tighten spark plug wire. Clean fuel line; fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Clear vent. Drain fuel tank. Refill with fresh fuel. Refer to the engine manual packed with your unit. Refer to the engine manual packed with your unit. Fill crankcase with proper oil. Refer to the engine manual packed with your unit. Refer to the engine manual packed with your unit. Adjust carburetor as instructed in separate engine manual. Dislodge foreign object. Replace tine clevis pin(s). Take unit to authorized service dealer.

Refer to Controls section of operator’s manual for proper shifting procedures. Adjust control cable (see assembly instructions). Replace belt.

already been tilled, not on virgin soil. Replace clevis pin. Refer to Controls section of operator’s manual for proper shifting procedures. Adjust control cable (see assembly instructions). Replace belt.

NOTE:

For repairs beyond the minor adjustments above, contact your local authorized service dealer.

Notes

Model 454

Ref.

No.

1. 611-0020 Wheel Shaft Ass’y 33T

2. 611-0021 Tine Shaft Ass’y: 18T

3. 611-0128 Jack Shaft Ass’y

4. 611-0129 Input Shaft Ass’y

5. 617-0058 Rev. Idler Gear Ass’y: 30T

6. 617-0059 Tine Idler Gear Ass’y: 30T

7. 617-0060 Tine Input Sprocket Ass’y: 9T

8. 617-0061 Wheel Input Sprocket Ass’y: 10T

9. 617-0062 Gear Ass’y: 11T

10. 686-0108 R.H. Housing Ass’y

11. 710-0376 Hex Bolt 5/16-18 x 1" Lg.

12. 710-0599 Hex S-Tap Scr. 1/4- 20 x.5”

13. 710-0604A Hex S-Tap Scr. 5/16-18 x.625”

14. 710-3008 Hex Bolt 5/16-18 x.75”

15. 711-1349 Input Shaft

16. 712-0378 Hex Nut 7/16-20

17. 712-3004A Flange Nut 5/16-18

18. 713-0367 #420 Chain 1/2 Pitch x 50 Links

19. 713-0484 #50 Chain 5/8 Pitch x 54 Links

20. 716-0865 Snap Ring

21. 717-0853 Shifting Fork

22. 717-1582 Spur Gear 44T

23. 717-1583 Spur Gear 30T

24. 717-1584 Spur Gear 30T

25. 717-1585 Spur Gear 44T

26. 717-1587 Spur Gear 44T

Part No. Part Description

Ref.

No.

27. 717-1594 Spur Gear 16T

28. 721-0378 Seal 1.0 Shaft

29. 721-0379 Seal.75 Shaft

31. 726-0277 Taper Cap Ring

32. 732-0496 Compression Spring.50” Leg.

33. 736-0163 Thrust Wash. 1.03" I.D. X. 1.62"

34. 736-0351 Fl-Wash.76" I.D. x 1.5" O.D.

35. 736-0407 Bell-Wash .45" I.D. x 1.0"

36. 736-0518 Thrust Wash. .445 x 1.92 x .060

37. 736-3088 Fl-Wash. .635" I.D. x 1.59 O.D.

40. 738-0645 Detent Shaft 1/2" Dia.

41. 738-0648 Jack Shaft .625 x 2.385

42. 738-1013 Jack Shaft .625 x 5.0

43. 741-0124 Ball Bearing

44. 741-0420 Flange Bearing 1.0 x 2.5 x 1.38

45. 741-0421 Flange Bearing .75 x 2.5 x 1.38

46. 741-0563 Ball Bearing . 6692 x 5745 x .466

47. 741-0862 Detent Ball .250

48. 750-0258 Spacer .315

49. 750-0570 Spacer 1.0 I.D x 2.0 O.D. x .440

50. 750-0664 Spacer .505 I.D. x .88 O.D. x .440

51. 750-0671 Spacer .75 x 2.0 x .50

52. 786-0171 L.H. Chain Case Ass’y

53. 786-0238 Gear Positioner Bracket

Part No. Part Description

686-0107 Gear Case Assembly Complete

Model 454

Ref.

No.

1. 747-1152 Shift Rod

2. 649-0041 Upper Handle Ass’y

3. 649-0034 Lower Handle Ass’y

4. 710-3005 Hex Screw 3/8-16 x 1.25

5. 710-3056 Hex Screw 5/16-18 x 3.25

6. 711-0415 Clevis Pin 3/8-1.62

7. 712-0379 Flange Lock Nut 3/8-24

8. 712-0429 Hex Lock Nut 5/16-18

9. 714-0147 Cotter Pin

10. 720-0313 Grip

11. 720-0210A T-Knob

12. 720-0278A Foam Grip

14. 726-0317 Cable Tie

15. 735-0246 Plug

16. 736-0117 Flat Washer 3/8 ID x .620 OD

17. 736-0242 Bell Washer .340 ID x .872 OD

18. 738-0958 Shoulder Spacer

19. 784-0190 Handle Adjustment Crank

20. 784-0191 Hex Nut Retainer Bracket

21. 786-0120 Depth Stake

22. 747-1219 Bail Clutch

23. 786-0181 Shift Lever Rod

24. 686-0044A Tine Shield Cover Ass’y

25. 710-0176 Hex Cap Screw 5/16-18 x 2.75

26. 710-3008 Hex Cap Screw 5/16-18 x .750

27. 710-3097 Carriage Bolt 3/8-16 x 1.0

28. 712-0421 Wing Nut

29. 736-0169 Lock Washer 3/8

30. 712-3004A Flange Nut 5/16-18

31. 726-0106 Cap Nut

32. 738-0849 Hex Screw 5/16-18 x .75”

33. 747-0432 Rod

Part No. Part Description

Ref.

No.

34. 750-0885A Spacer .322 x .625 x 2.0

35. 786-0090 Shoulder

36. 786-0113 Tine Shield Hinge Flap

37. 786-0176 RH Handle Bracket

38. 786-0177 LH Handle Bracket

39. 786-0178 Tine Shield

40. 786-0179 Tine Shield Bracket

41. 786-0180 Shoulder Spacer Bracket

42. 686-0109 Shift Crank Ass’y

44. 710-1017 Screw 1/4-14 x .625

46. 715-0120 Spiral Pin 3/16 x 1.0

49. 784-0208C Shift Cover

50. 711-0415 Clevis Pin

51. 712-3054 Hex Nut 3/8-24

53. 742-0305 13” Articulating Tine

54. 738-0689 Shoulder Bolt

55. 736-0208 Flat Washer .51” ID x 1.50” OD

56. 736-0253 Bell Washer .515” ID x 1.14” OD

57. 738-0688 Shoulder Bolt

58. 784-0205 Tine Adapter Ass’y

59. 714-0149B Internal Cotter Pin

60. 735-0127 Rubber Washer

61. 714-0104 Cotter Pin

62. 710-3022 Hex Screw 3/8-16 x 2.75”

63. 736-0204 Flat Washer

64. 712-0431 Flange Nut .344 ID x .62 OD

65. 736-0169 Lock Washer

66. 712-0798 Hex Nut 3/8-16

67. 710-0946 Truss Screw 1/4-20 x .65

68. 712-0324 Hex Lock Nut 1/4-20

69. 726-0273 Battery Hose Clamp 5/16

70. 736-3090 Flat Washer .260 ID x .720 OD

Part No. Part Description

Model 454

Ref.

No.

1. 686-0111 Belt Cover Bracket Ass’y

2. 710-0237 Hex Bolt 5/16-24 x .62”

3. 710-0412 Hex Bolt 1/4-28 x .75”

4. 710-0502A Hex Washer Screw 3/8-16 x 1.25”

5. 710-0152 Hex Bolt 3/8-24 x 1.0

6. 710-0599 Hex Washer Screw

7. 710-0723 Hex Cap Screw 3/8-16 x 1.25

8. 712-0266 Lock Jam Nut 3/8-16

9. 712-0267 Hex Nut 5/16-18

10. 714-0104 Internal Cotter Pin

11. 736-0104 Hairpin Clip

12. 736-0119 Lock Washer 5/16”

13. 736-0176 Flat Washer .25 ID x .93 OD

14. 736-0271 Spring Washer .317 ID x .625 OD

15. 736-0329 Lock Washer 1/4” ID

16. 736-0452 Bell Washer .396 ID x 1.14 OD

17. 738-0876 Shoulder Nut 7/16-20

18. 746-1117 Clutch Cable

19. 747-1159 Idler Pulley Rod

20. 754-0434 V-Belt

21. 756-0405 Flat Idler w/Flange 3.75 OD

22. 756-0971 Outer Engine Pulley Half

23. 756-0972 Inner Engine Pulley Half

24. 756-1162 Input Pulley

Part No. Part Description

Ref.

No.

25. 786-0064A Idler Bracket

26. 786-0186 Belt Keeper Bracket

27. 786-0187 Shift Cover Bracket

28. 786-0193 Idler Belt Keeper

29. 634-0238 Wheel Assembly RH 16.0 x 4.6

30. 634-0108 Wheel Rim Assembly

31. 734-0255 Air Valve

32. 711-1017 Clevis Pin

33. 714-0104 Internal Cotter Pin

34. 710-0382 Hex Bolt 1/2-13 x 5.0

35. 712-0206 Hex Nut 1/2-13

36. 723-0381 Counterweight

37. 736-0326 Flat Washer .510 ID x 1.0 OD

38. 736-0921 Lock Washer 1/2

39. 710-0653 Hex Screw 1/4-20 x .375

40. 710-1017 Screw 1/4-14 x .625

41. 712-0392 Lock Nut

42. 736-3020 Flat Washer .271 ID x .630 OD

43. 784-0158A Belt Cover

44. 736-0242 Bell Washer .340 ID x .872 OD

45. 712-3010 Hex Nut 5/16-18

46.

Part No. Part Description

634-0239 Wheel Assembly LH 16.0 x 4.6 734-0808 Tire Only 16.2 x 4.6

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its possessions and territories.

MTD LLC warrants this product against defects for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in materials or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water, or damage because of other peril or natural disaster. Damage resulting from the installation or use of any accessory or attachment not approved by MTD LLC for use with the product(s) covered by this manual will void your warranty as to any resulting damage.

Normal wear parts or components thereof are subject to separate terms as follows: All normal wear parts or component failures will be covered on the product for a period of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered ONLY IF caused by defects in materials or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to: batteries, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates, auger spiral rubber, and tires.

HOW TO OBTAIN SERVICE: Warranty service is available, WITH PROOF OF PURCHASE, through your local authorized service dealer. To locate the dealer in your area, check your Yellow Pages, or contact MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, or call 1-800-345-TRIM (8746) or 1-330-558-7210 or log on to our Web site at www.ryobioutdoor.com.

This limited warranty does not provide coverage in the following cases:

a. The engine or component parts thereof. These items

carry a separate manufacturer’s warranty. Refer to applicable manufacturer’s warranty for terms and conditions.

b. Log splitter pumps, valves, and cylinders have a sepa

rate one year warranty.

c. Routine maintenance items such as lubricants, filters,

blade sharpening, tune-ups, brake adjustments, clutch adjustments, deck adjustments, and normal deterioration of the exterior finish due to use or exposure.

d. MTD LLC does not extend any warranty for products

sold or exported outside of the United States, its possessions and territories, except those sold through MTD LLC’s authorized channels of export distribution.

e. Parts that are not genuine MTD parts are not covered

by this warranty.

f. Service completed by someone other than an

authorized service dealer is not covered by this warranty.

g. Transportation charges and service calls are not

covered.

No implied warranty, including any implied warranty of merchantability of fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty, whether written or oral, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product, shall bind MTD LLC. During the period of the warranty, the exclusive remedy is repair or replacement of the product as set forth above.

The provisions as set forth in this warranty provide the sole and exclusive remedy arising from the sale. MTD LLC shall not be liable for incidental or consequential loss or damage including, without limitation, expenses incurred for substitute or replacement lawn care services or for rental expenses to temporarily replace a warranted product.

Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above exclusions or limitations may not apply to you.

In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold. Alteration

of safety features of the product shall void this warranty.

You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the misuse or inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser or to the person for whom it was purchased as a gift.

HOW STATE LAW RELATES TO THIS WARRANTY: This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-345-TRIM (8746), 1-330-558-7210

Ryobi Outdoor 454 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual