Yard Machines 300 Manuel utilisateur

Marque: Yard Machines

Modèle: 300

Catégorie: Mini motoculteurs

Taper: Manuel utilisateur

Ce manuel convient également à

Tiller 300

OPERATOR’S MANUAL

FRONT TINE

TILLERS

300 Series

IMPORTANT: READ

MTD PRODUCTS LTD. P.O. BOX 1386 KITCHENER, ON N2G 4J1

PRINTED IN THE U.S.A.

772C0730

SAFETY RULES AND

INSTRUCTIONS CAREFULLY

(10/04)

TABLE OF CONTENTS

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new equipment. 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. A sample model plate is also given below. You can locate the model plate by standing at the operating

position and looking down at the rear of the deck . This information will be necessary to use the manufacturer’s web site and/or help

from the Customer Support Department or an authorized service dealer.

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.

CALLING CUSTOMER SUPPORT

Please do NOT return the unit to the retailer from which it was purchased, without first 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 a Customer Support Representataive.

For US Customers: 1- (330) 220-4MTD (4683) or 1- (800)-800-7310

For Canadian Customers: 1-800-668-1238

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.

HOW TO OBTAIN SERVICE

Service is available, WITH PROOF OF PURCHASE, through your local authorized service dealer. To locate the dealer in your

area;

In the U.S.A.

: Check your Yellow Pages, or contact customer support listed about MTD LLC at P.O. Box 361131, Cleveland,

Ohio 44136-0019, or call 1-800-800-7310 or 1-330-220-4683 or log on to our Web site at www.mtdproducts.com.

In Canada

: Contact MTD Products Limited, Kitchener, ON N2G 4J1, or call 1-800-668-1238 or log on to our Web site at

www.mtdcanada.com.

Content Page

Customer Support 2

Important Safe Operation Practices 3

Assembly 5

Controls 7

Operation 8

Adjustments 10

Lubrication 11

Maintenance 11

Off-Season Storage 13

Troubleshooting 13

Parts Lists/Pièces détachées 14

Warranty 18

Content Page

MTD PRODUCTS LIMITED

KITCHENER, ON N2G 4J1

1-800-668-1238

XXXXXXXXXX

XXXXXXXXXXX

Model Number

Numéro de modèle

Serial Number

Numéro de série

www.mtdcanada.com

This is where your model number will be.

This is where your serial number will be.

Copy the model number here:

Copy the serial number here:

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

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

the personal safety and/or property of yourself and others. Read and follow all instructions in this manual

before attempting to operate your tiller. Failure to comply with these instructions may result in personal

injury. when you see this symbol— HEED ITS WARNING

DANGER: Your tiller was built to be operated according to the rules for safe operation in this manual.

As with any type of power equipment, carelessness or error on the part of the operator can result in

serious injury. This tiller is capable of amputating hands and feet. Failure to observe the following safety

instructions could result in serious injury or death.

TRAINING

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, children and pets 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 shirts. Loose fitting clothes and

jewelry can be caught in movable parts. Never

operate this machine in bare feet or sandals.

3. Disengage clutch levers and shift (if provided)

lever 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 the

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 allow space

for fuel expansion.

13. Replace gasoline cap and tighten securely.

14. If gasoline is spilled, wipe it off the engine and

equipment. Move unit to another area. Wait 5

minutes before starting the engine.

15. Never store the machine or fuel container inside

where there is an open flame, spark or pilot light

as on a water heater, space heater, furnace,

clothes dryer or other gas appliances.

16. Allow a machine to cool at least 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 the 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, children and pets at

least 75 feet from the machine while it is in

operation. Stop 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(s) 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 the 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 too deep at too fast of a rate.

17. If the machine should start making 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 accessories and attachments approved

for this machine by the machine manufacturer.

Failure to do so, can result in serious injury.

21. If situations occur which are not covered in this

manual, use care and good judgment. Contact

your authorized dealer for assistance.

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, make

certain the tine(s) and all moving parts have

stopped. Disconnect the spark plug wire and

ground against the engine to prevent unintended

starting.

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

as on a water heater, space heater, furnace,

clothes dryer or other gas appliances.

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.

WARNING — YOUR RESPONSIBILITY: 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.

Figure 1 Safety labels found on your unit

SECTION 2: ASSEMBLY INSTRUCTIONS

IMPORTANT: This unit is shipped WITHOUT

GASOLINE or OIL. After assembly, see separate

engine manual for proper fuel and engine oil

recommendations.

NOTE: Left and right is determined from the

operator’s position, standing behind the tiller.

REMOVING 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 all loose parts included with unit (i.e.,

operator’s manual, etc.)

• Cut along corners, lay carton down flat, and remove

packing material.

• Roll or slide unit out of carton and check carton

thoroughly for loose parts.

• Extend control cable(s) to the rear of the tiller and

lay them on the floor. Be careful not to bend or kink

control cable(s).

TOOLS REQUIRED FOR ASSEMBLY

(1)-1/2" Wrench or Socket*

(1)-Pair of Pliers

(1)-3/8" Wrench*

*An adjustable wrench may be used.

This owner's guide covers two different model

tillers. Model 340 has forward tine drive only.

Model 390 has both forward and reverse tine drive.

Follow only the instructions which pertain to your

model tiller. See the model plate on your tiller for

the correct model number.

LOOSE PARTS IN CARTON

1. Tailpiece

2. Depth Stake

3. Handle Assembly

NOTE: All hardware required for assembly has been

placed in position on the tiller.

BEFORE ASSEMBLY

WARNING: Disconnect the spark plug wire

and ground against the engine to prevent

unintended starting.

ATTACHING THE TAILPIECE AND DEPTH

STAKE

1. Remove the two self-tapping screws on the frame.

Slide the tailpiece into the frame, with the lower

hole in the tailpiece toward the front.

2. Secure with screws just removed. See Figure 2.

Figure 2

ATTACHING THE HANDLE ASSEMBLY

1. Remove the hex bolt and cupped washer from the

top right side of the frame halves. Hold the cable

guide bracket on the left side of the frame as it will

fall when the bolt is removed. See Figure 3.

2. Insert the handle assembly between the two frame

halves. Insert the hex bolt just removed through

the frame halves, handle assembly, and into the

cable guide bracket (notch in cable guide bracket

goes over the flange on the frame). Tighten

securely.

3. Loosen the hand knob which secures the handle

brace to the handle assembly.

4. Remove the handle knob and hardware from the

handle brace. Insert the carriage screw through the

welded bracket on the handle and into the end of

the handle brace. See Figure 3.

5. Secure with cupped washer and handle knob.

6. Select one of the three handle height positions

(three notches in welded bracket), and tighten the

hand knob to secure the handle in desired position.

Make certain carriage bolt is seated securely into

one of the three positions provided.

Figure 3

Tailpiece

Self-Tapping

Screws

Depth

Stake

Hex Nut and

Cupped Washer

Handle

Crank

Handle

Brace

U-Nut

Handle

Assembly

ATTACHING THE CLUTCH CONTROL

CABLES

FORWARD CABLE

Attach the end of the forward cable to the bracket

underneath the handle assembly as follows. (On

model 390, the forward clutch cable is the cable which

is attached closer to the rear of the tiller).

1. Loosen the hex nut on the threaded rod near the

end of the cable, and move it up the rod as far as it

will go. See

2. Unthread the rod from the rest of the cable. Hook

the “Z” end of the rod into the bracket underneath

the handle assembly from the right hand side. See

Figure 4 or Figure 5.

3. Thread the rod back into the cable until the cable

is straight. Do not tighten it enough to put any

tension on the spring. See Figure 4 or Figure 5.

4. Thread the hex nut down against the end of cable.

Use a pair of pliers and a wrench to lock the nut

against the rod.

NOTE: Do not overtighten control cable. Too much

tension may cause it to break when engaged.

Figure 4 Model 340

Figure 5 Model 390

REVERSE CABLE (Model 390 Only)

The reverse clutch cable is the cable which is attached

closer to the front of the tiller. Attach the end of the

reverse cable to the reverse tine engagement handle

above the handle assembly, in the same manner as

you attached the forward cable. See Figure 5.

FINAL CLUTCH ADJUSTMENT

To check the clutch cable adjustment, proceed as

follows.

1. Disconnect the spark plug wire and move it away

from the spark plug to prevent accidental starting.

2. Engage and release the forward tine engagement

handle, then the reverse tine engagement lever

(model 390 only). If an excessive noise is heard

when releasing either the tine drive clutch handle

or lever, the cable may be too loose. Adjust either

the forward or reverse clutch cable by loosening

the hex nut, threading the rod into the cable one or

two turns, then retightening the nut. See Figure 6.

Figure 6

3. With tine engagement handles in neutral

(released) as shown in Figure 6, pull the starter

rope several times. The tines should not turn. If

they turn forward, loosen the hex nut on the

forward cable (underneath the handle assembly).

See Figure 5. If they turn toward the rear (model

390 only), loosen the hex nut on the reverse cable

(above the handle assembly). Unthread the rod

from the cable 2 or 3 turns. Retighten the hex nut,

and check again for correct adjustment. See

Figure 6.

“Z” End

Hooked In

Bracket

Threaded

Rod

Hex Nut

Cable

Reverse

Cable

Hex Nut

Threaded

Rod

Reverse Tine

Engagement Handle

“Z” End

Hooked In

Bracket

Model 390

Model 340

Engagement Handle

Tine

Engagement Handle

Reverse Tine

SECTION 3: CONTROLS

WARNING: Read, understand, and follow

all instructions and warnings on the machine

and in this manual before operating.

Figure 7 Model 390 Shown

THROTTLE CONTROL

The throttle control lever is located on the engine. It

controls the engine speed and stops the engine. See

Figure 8.

CHOKE LEVER

The choke lever is located above the throttle control. It

is used to enrich the fuel mixture when starting a cold

engine. See Figure 8.

FORWARD TINE ENGAGEMENT HANDLE

The forward tine engagement handle is located

beneath the tiller handle. Squeezing the handle up

against the tiller handle engages the tines. Release the

handle to stop the tines. See Figure 7.

REVERSE TINE DRIVE CLUTCH LEVER

(Model 390 Only)

The reverse tine drive clutch lever is located on top of

the handle panel. Pull the lever to the rear to move the

tines in reverse. Release the lever to stop the reverse

tine drive. See Figure 7.

NOTE: Never engage both the forward and reverse

tine drives at the same time. Engaging both forward

and reverse tine drives at the same time could damage

the belt drives and cause the engine to stall.

Figure 8

DEPTH STAKE

The depth stake controls the tilling depth. Refer to

"HOW TO USE YOUR TILLER" SECTION" for more

details.

TINE AND END CAPS

The tilling tines and end caps are used to cultivate,

furrow, and prepare your garden for seeding. The end

caps are used to avoid tilled soil from overflowing onto

unwanted areas.

HANDLE KNOB

The handle knob is attached to the handle and is used

to adjust the height of the handle to three different

settings.

ENGINE CONTROLS

See the separate engine manual for the location and

function of the other controls on the engine.

Forward Tine

Engagement

Lever

Reverse Tine

Engagement

Lever

Depth

Stake

End

Cap

Tines

Handle

Knob

Choke

Throttle Control

Models 340/390

SECTION 4: OPERATION

WARNING: Read, understand, and follow

all instructions and warnings on the machine

and in this manual before operating.

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: Use extreme care when

handling gasoline. Gasoline is extremely

flammable and the vapors are explosive.

Never fuel machine indoors or while the

engine is hot or running.

TO START ENGINE

WARNING:

Be sure no one is standing in

front of the tiller while the engine is running or

being started.

1. Attach spark plug wire to spark plug. Make certain

the metal loop on the end of the spark plug wire

(inside the boot) is fastened securely over the

metal tip on the spark plug.

2. Make certain the tine engagement controls are in

the neutral position (released). See Figure 7.

3. Place the throttle control lever in FAST position.

(See Figure 8 ).

4. Move choke lever to CHOKE position. (A warm

engine requires little or no choke.)

5. Grasp starter handle and pull rope out slowly until

engine reaches start of compression cycle (rope

will pull slightly harder at this point). Let the rope

rewind slowly.

6. Pull rope with a rapid, continuous, full arm stroke.

Keep a firm grip on starter handle. Let rope rewind

slowly. Do not let starter handle snap back against

starter. Repeat preceding instructions 5 and 6 until

engine starts.

7. When engine starts, move choke lever on engine

halfway between CHOKE and RUN.

8. Move throttle control to IDLE position for a few

minutes warm-up. Move choke lever to RUN

position as engine warms up.

NOTE: After starting engine and prior to using the

tiller, be certain to check the clutch adjustment as

described in “Finall Clutch Adjustment” section of the

Assembly Instructions.

TO STOP ENGINE

1. Move throttle control lever to STOP or OFF

position.

2. Disconnect spark plug wire from spark plug and

ground against the engine to prevent accidental

starting while equipment is unattended.

WHEEL POSITION

NOTE:

The tiller is shipped with the wheels adjusted

such that the unit sits level. While tilling, as the tines

enter the ground and the front of the tiller lowers, the

wheels must be raised to level the unit. Follow the

steps below to adjust the wheels.

• Remove the clevis pin and hairpin clip from wheel

yoke, raising the wheels to the desired height, and

replacing the clevis pin and hairpin clip. (See Figure

9.)

Figure 9

REMOVING END CAPS

The end cap are used to avoid tilled soil from getting

onto unwanted areas. You can remove each end cap

from the outer axle by removing the hairpin clip and

clevis pin that secure it. Slide end cap off the axle to

remove. See Figure 10.

Figure 10

Hairpin Clips

and Clevis Pins

Wheel Yoke

Depth

Stake

End

Clevis

Hairpin Clip

Cap

CONTROLLING SPEED AND TILLING

DEPTH

WHEEL YOKE ADJUSTMENT:

1. Place wheel yoke so that the wheels are forward

(nearest point between wheels and tines) for

shallow tilling, cultivating and transport. The

forward speed will increase.

2. Turn yoke around (farthest point between wheels

and tines) for deep tilling. Forward speed will

decrease. (See Figure 11.)

Depth Stake Adjustment:

The depth stake acts as a brake for the tiller and

controls the depth and speed at which the machine will

operate.

1. By increasing the depth of the depth stake, the

forward speed of the machine is reduced, and the

working depth is increased. (See Figure 12.)

2. When the depth stake is raised, the working depth

of the machine is reduced and the forward speed

is increased.

• Remove the clevis pin and hairpin clip to raise or

lower depth stake. (See Figure 9.)

Figure 11

IMPORTANT: The working depth of the machine

may be predetermined by setting the depth stake and

wheels so that the wheels are about four inches from

the ground when the tines and depth stake are resting

on the ground. This setting will permit a working depth

of about four inches. When presetting the working

depth, the handles should be adjusted so the hand

grips are a little above waist height because the tiller

will be lower when the tines and depth stake penetrate

the ground. See Figure 12.

When tilling, leave approximately 8 inches of untilled

soil between the first and second tilling paths, then

make the third path between the first and second as

shown in Figure 13. In some soils, the desired depth is

obtained the first time over the garden. In other soils,

the desired depth is obtained by going over the garden

two or three times. In the latter case, the depth stake

should be lowered before each succeeding pass over

the garden. Passes should be made across the length

and width of the garden alternately. Rocks which are

turned up should be removed from the garden area.

Figure 12

Figure 13

Handle Pressure:

Further control of tilling depth and travel speed can be

obtained by variation of pressure on the handles.

1. A downward pressure on the handles will reduce

the working depth and increase the forward speed.

2. An upward pressure on the handles will increase

the working depth and reduce the forward speed.

NOTE: The type of soil and working conditions will

determine the actual setting of the depth stake and the

handle pressure required.

Throttle Control: The throttle control lever adjusts the

engine speed and stops the engine. With the throttle

control lever pushed completely forward, the carburetor

is in START position. Pulling the throttle control back

slightly adjusts the engine speed to FAST. Pulling the

throttle back further reduces the engine speed to

SLOW. Pull the throttle completely back to stop the

engine.

Use maximum engine speed for deep tilling. Move the

throttle control to SLOW when transporting the tiller.

Deep

Shallow

Tilling

Transport

Position

Depth

Stake

Deep Tilling

Slow Forward

Shallow Tilling

Fast Forward

Raised Wheel Setting

For Deep Tilling

TRANSPORTING THE TILLER

To transport the tiller to or from the garden, pivot the

depth stake forward, out of the way. (See Figure 12.)

With the throttle control in SLOW position, the unit will

walk freely on top of the lawn. If the operator does not

allow the tiller to move freely, the unit will start to till

the surface.

HOW TO USE YOUR TILLER

Your tiller is a precision built machine designed for

seed bed preparation, cultivating, furrowing and

mulching. It is engineered to minimize the hardest

work in the vegetable or flower garden, to till the soil

for planting and cultivating, and to perform many other

useful labor saving tasks in the garden. With the

proper amount of care and maintenance, this machine

will provide the owner with many years of service.

CULTIVATING

For cultivating, a two to three inch depth is desirable.

Set the wheels and depth stake so that the wheels are

about two inches above the ground while the tiller is

resting on the tines and depth stake will allow the

machine to work at cultivating depth. The throttle

should be set to control forward movement to a slow

walking speed. With the outer tines installed, the

working width of the machine is 22 or 24 inches. For

cultivation, this may be reduced to 13 inches by

removing the outer tines. Refer to Tine Width

Adjustment in Adjustment section. When laying out

plant rows, be sure to allow enough width to permit

cultivation between the rows. In growing corn or similar

crops, check-row planting will permit cross cultivation

and practically eliminate hand hoeing. (See .Figure

14).

Figure 14

The tiller has many uses other than tilling and

cultivating a garden. One of these is the preparation of

lawn area for seeding. The tiller will prepare a deep

seed bed which will be free of hard untilled spots,

allowing a better stand of grass to grow. The tiller is

very useful for loosening hard soil for excavation with a

shovel. No tedious hand pickwork will be necessary.

Your tiller may be used for mixing compost in the pile,

or for mixing it with the soil in your garden. This should

be done after the soil has been broken to the full

working depth. The compost should be worked in to a

depth of six to seven inches. This may be done by

working the length of the garden, and then by making

separate passes across its width. The addition of

decayed organic matter will substantially increase the

fertility of your garden. For proper decaying action,

fertilizer should be applied and worked in with the

mulch materials. Breaking up leaves and straw and

mixing it with several inches of soil causes the soil to

hold moisture longer and allows proper aeration of the

plant root system. This also retards the growth of

weeds.

SECTION 5: ADJUSTMENTS

WARNING: Disconnect the spark plug

wire and ground against the engine before

performing any adjustments, repairs, or

maintenance.

WHEEL ADJUSTMENTS

To adjust the wheel yoke and wheel position, refer to

WHEEL POSITION on page 8.

DEPTH STAKE ADJUSTMENT

To adjust the depth stake, refer to WHEEL POSITION

on page 8.

CLUTCH CONTROL ADJUSTMENTS

Periodic adjustment of the belt tension may be required

due to normal stretch and wear on the belt. To adjust

the clutch control lever, refer to the Final Adjustment

section of assembly instructions.

ENGINE

Refer to the separate engine manual for engine adjust-

ment instructions.

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are made

to the engine while the engine is running

(e.g. carburetor), disengage all clutches and

tines. Keep clear of all moving parts. Be

careful of heated surfaces and muffler.

Minor carburetor adjustment may be required to

compensate for differences in fuel, temperature,

altitude or load. If adjustments are needed, refer to the

engine manual packed with the tiller.

TINE WIDTH ADJUSTMENT

The tilling width of the unit is 22 inches. (See Figure

15.) Tilling width can be increased to 24 inches by

removing the clevis pins and hairpin clips, sliding the

outer tines out one inch, and securing in this position

with the clevis pins and hairpin clips. (See Figure 16.)

For cultivation, reduce the tine width to 13 inches by

removing the outer tines completely. (See Figure 17.)

Figure 15

Figure 16

Figure 17

NOTE: A dirty air cleaner will cause engine to run

rough. Be certain air cleaner is clean and attached to

the carburetor before adjusting carburetor. Do not

make unnecessary adjustments. Factory settings are

satisfactory for most applications and conditions.

SECTION 6: LUBRICATION

WARNING: Always stop engine and

disconnect spark plug wire before cleaning,

lubricating or doing any kind of work on tiller.

Tine Engagement Handle/Lever

• Lubricate the pivot points on the tine handle/lever

and the cable at least once a season with light oil.

The controls 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 the 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.

Transmission

• The transmission is pre-lubricated and sealed at

the factory. It requires no checking unless the

transmission is disassembled. See an authorized

service dealer if the transmission is disassembled.

SECTION 7: MAINTENANCE

WARNING: Disconnect spark plug wire

and ground it against the engine before

performing any repairs or maintenance.

TROUBLE SHOOTING

Refer to page 13 of this manual for trouble shooting

information.

ENGINE

Refer to the separate engine manual for all engine

maintenance instructions.

Maintain engine oil as instructed in the separate

engine manual packed with your unit. Read and follow

instructions carefully.

IMPORTANT: Do not attempt to start the engine

when the oil level is inadequate.

Service air cleaner every 25 hours under normal

conditions. Clean after 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: Never run your engine without air

cleaner completely assembled.

The spark plug should be cleaned and the gap reset

after every 25 hours of engine operation. Spark plug

replacement is recommended at the start of each

season; check engine manual for correct plug type and

gap specifications.

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.

CLEANING THE TINE AREA

Clean the underside of the tine shield after each use.

The dirt washes off the tines easier if washed off

immediately instead of after it dries.

22"

24"

13"

NOTE: 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 reduced serviceability.

BELT REMOVAL AND REPLACEMENT

Your tiller has been engineered with belts made of

special material (Kevlar Tensile). They should not be

replaced with an off-the-shelf belt. If belt replacement

is required, order belt or belts by part number from

your nearest authorized service dealer.

Forward Drive Belt - Part No. 754-0428

Reverse Drive Belt (390 Only) - Part No. 754-0429

Reverse Drive Belt (Model 390 Only)

1. Disconnect and ground the spark plug wire against

the engine.

2. Remove the two hex washer screws from the front

of belt cover and remove the hex nut and flat

washer from the side of the belt cover.

3. Remove belt cover. See Figure 18. Lift the belt off

the transmission pulley.

4. Remove the hex nut which secures the reverse

idler pulley to the idler bracket. Slide the idler

pulley out and remove the belt. See Figure 19.

Figure 18

Figure 19 Model 390 Shown

Figure 20 Model 390 Shown

5. Reassemble the new belt, following instructions in

reverse order. Make certain the reverse drive belt

is assembled with the wide side of the belt against

the transmission and engine pulleys. Be certain to

adjust the clutch control as instructed in the final

clutch adjustment section of assembly instructions

Forward Drive Belt (See Figure 20)

1. Model 340: Remove the belt cover by following

step 1 and step 2 of the previous section.

Model 390: Remove the reverse drive belt as

instructed in the previous section.

2. Remove the belt keeper from the idler pulley by

removing the idler pulley nut.

3. Lift belt off the idler pulley and transmission pulley.

See Figure 20.

4. Using a 9/16" wrench, remove bolt from engine

pulley.

5. Push reverse idler pulley bracket forward, and

remove engine pulley and belt. See Figure 20.

6. Reassemble the new belt, following instructions in

reverse order. Make certain the forward drive belt

is assembled with the wide side of the belt away

from the transmission and engine pulleys. Be

certain to adjust the clutch control as instructed in

the final clutch adjustment section of assembly

instructions.

Hex Nut and Washer

Self-Tapping

Screws

Belt

Cover

Reverse

Idler

Pulley

Hex Nut

Reverse Belt

Forward Belt

Transmission

Pulley

Engine Pulley

Engine

Pulley

Forward

Belt

Idler Pulley Nut

SECTION 8: OFF-SEASON STORAGE

If the tiller is to be inoperative for a period longer

than 30 days, the following precautions are

recommended.

1. Clean the exterior of engine and entire tiller

thoroughly. Lubricate the tiller as described in

the lubrication instructions.

2. Refer to the engine manual for correct engine

storage instructions.

3. Wipe tines with oiled rag to prevent rust.

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

corrosive materials, such as fertilizer.

NOTE: When storing any type of power equipment

in an unventilated or metal storage shed, care

should be taken to rustproof the equipment. Using a

light oil or silicone, coat the equipment, especially

any springs, bearings and cables.

SECTION 9: TROUBLE SHOOTING GUIDE

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

Trouble Possible Cause(s) Corrective Action

Engine fails to

start

Fuel tank empty, or stale fuel.

Throttle control lever not in correct

starting position (if so equipped).

Blocked fuel line.

Choke not in ON position.

Spark plug wire disconnected.

Faulty spark plug.

Engine flooded.

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.

Move switch to ON position.

Connect wire to spark plug.

Clean, adjust gap or replace.

Refer to the engine manual packed with your unit.

Engine runs

erratic

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.

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.

Engine over-

heats

Engine oil level low.

Dirty air cleaner.

Air flow restricted.

Carburetor not adjusted properly.

Fill crankcase with proper oil.

Refer to the engine manual packed with your unit.

Adjust carburetor as instructed in separate engine manual.

Tines do not

engage

Foreign object lodged in tines.

Tine clevis pin(s) missing.

Pulley and idler not in correct

adjustment.

Control cable not adjusted properly.

Belt worn and/or stretched.

Dislodge foreign object.

Replace tine clevis pin(s).

Take unit to authorized service dealer.

Adjust control cable (see assembly instructions).

Replace belt.

REF PART

NO. NO.

N° DE N° DE

RÉF PIÈCE DE SCRIP TION DE SCRIP TION

1 712-0442 Acorn Lock Nut 1/4-20 Écrou crénelé

2 736-3020 Flat Washer .266 ID x .625 OD Rondelle plate 0,266 DI x 0,625 DE

3 720-0270A Reverse Handle Grip Poignée

4 731-1600 Handle cover (w/o throttle) Couvercle de poignée (sans obturateur)

5 710-0779A Truss Mach Tapp Scr #10 x .50 Vis taraudée NO 10 x 0,50

6 720-0274 Grip Poignée

7 712-0287 Hex Nut 1/4-20 Écrou hex 1/4-20

8 726-0135 Cap Speed Nut 5/16" Rod Écrou rapide 5/16

9 686-0083 Clutch Handle Assembly Poignée d’embrayage

10 720-0269 Grip-Clutch Poignée d’embrayage

11 710-0641 Screw - .250-20 x 2.25 Hex Wash Vis auto-fileteuse AB à tête hex et rondelle

12 731-1645A Clutch Handle Holder Poignée d’embrayage

13 736-0140 Flat Washer .385 ID x .62 OD x .06 Rondelle frein 0,385 DI x 0,62 DE x 0,06

14 686-0014A Reverse Handle Ass’y Poignée arrière

15 736-0264 Flat Washer .344 ID x .625 OD x .063 Rondelle plate 0,344 DI x 0,625 DE x 0,063

16 649-0022B Handle Ass’y Complete Ensemble de poignée

17 710-1236 Carriage Screw 5/16-18 x 1.0 Boulon ordinaire 5/16-18 x 1,0

18 720-0195 Hand Knob Bouton

19 749-1401 Handle Brace Support de poignée

20 736-0921 L-Washer 1/2" ID Rondelle frein 1/2 DI

21 710-3194 Hex Bolt 1/2-20 Gr. 5 Boulon hex 1/2-20 Qual. 5

22 786-0005 Depth Bar Barre de profondeur

23 714-0149B Internal Cotter Pin Goupille fendue interne

24 712-3004A Hex Flange L-Nut 5/16-18 Contre-écrou à embase 5/16-18

25 786-0003 Tail Piece Brkt. (LH) Support de la partie arrière (CG)

26 786-0004 Tail Piece Brkt. (RH) Support de la partie arrière (CD)

27 711-0415 Clevis Pin 3/8 Dia Axe de chape 3/8 Dia.

28 710-0805 Hex Bolt 5/16 - 18 x 1.50" Lg. Gr. 5 Boulon Hex 5/16 - 18 x 1,50 po de lg Qual. 5

29 710-0189 Hex Screw 5/16-18 x 3.00 Vis à tête hexagonale 5/16-18 x 3,00

30 736-0242 Bell. Washer .345 ID x .88 OD x .06 Rondelle creuse 0,345 DI x 0,88 DE x 0,060

31 711-1036A Spec. Hex. Nut Écrou hex spéciale

32 736-0119 L-Wash 5/16 ID Rondelle frein 5/16 DI

33 710-3008 Hex Bolt 5/16-18 x .75" Lg. Gr. 5 Boulon hex. 5/16-18 x 0,75 po de lg. Qual. 5

34 786-0129 Cable Guide Bracket Support du câble

35 710-0604A Hex Wash HD Scr 5/16-18 x .62 Vis taraudée 5/16-18 x 0,62

36 710-0602 Hex Wash Hd Tapp Scr 5/16-18 x 1.00 Vis auto-fileteuse à tête hex et rondelle 5/16-18

37 738-0934 Shoulder Bolt 5/16-18 Boulon épaulement 5/16-18

38 786-0138A Frame RH Bâti - droite

39 786-0139A Frame LH Bâti -gauche

40 736-0171 Lockwasher 7/16 ID Rondelle frein 7/16 DI

41 712-0240 Hex Jam Nut 7/16-20 Contre-écrou hexagonal 7/16-20

42 710-0176 Hex Scr 5/16-18 x 2.75 Vis à tête hexagonale 5/16 x 2,75

43 712-0429 Hex Ins. L-Nut 5/16-18 Contre-écrou de blocage 5/16-18

46 686-0081A Wheel Hanger Brkt. Ass’y Support de roue

47 734-1781 Wheel Ass’y 8" x 1.80 Ensemble de roue 8 x 1,80

734-1566 Wheel Ass’y 8" x 1.75 Ensemble de roue 8 x 1,75

48 738-0929 Shoulder Screw .496 ID x 1.445 OD Vis à èpaulement 0,496 DI x 1,445 DE

49 750-0890 Spacer .32" ID x .75" OD Entretoise 0,32 DI x 0,75 DE

50 686-0091 Chain Case Ass’y. Complete Ensemble de carter de la chaîne - complet

340_390

5.21.04

REF PART

NO. NO.

N° DE N° DE

RÉF PIÈCE DESCRIPTION DESCRIPTION

1 712-0392 Hex Lock Stop Nut 1/4-28 Contre-écrou d’arrêt 1/4-28

2 736-3020 Flat Washer .266 ID x .625 OD Rondelle plate 0,266 DI x 0,625 DE

3 710-0599 Hex Wash S-Tapp Scr 1/4-20 x .50 Vis autotaraudeuse à rondelle hex. de 1/4-20 x 0,5

4 711-0920 Belt Cover Bolt Boulon - couvercle courroie

5 712-3004A Hex Flange L-Nut 5/16-18 Contre-écrou à embase 5/16-18

6 710-0723 Hex Screw 3/8-16 X 1.25 Vis à tête hexagonale 3/8-16 X 1,25

7 756-0313 Flat Idler 2.0 X 1.0 w/flange Tendeur de plate 2,0 X 1,0 avec collet

8 786-0149 Belt Idler keeper Tendeur le dispositif de retenue de la courroie

9 786-0144 Idler Bracket Support de tendeur

10 712-0266 Hex Cent L-Nut 3/8-16 Contre-écrou de blocage 3/8-16

11 786-0057 Belt Cover Couvercle de la courroie

13 786-0043A Tine Shield Bouclier de dents

14 710-3008 Hex Bolt 5/16-18 x .75" Lg. Gr. 5 Boulon hex. 5/16-18 x 0,75 po de lg. Qual. 5

16 686-0091 Chain Case Assembly Complete Ensemble de carter de la chaîne - complet

17 686-0106 Tine Disc Ends Disque des dents

18 714-0149B Internal Cotter Pin Goupille fendue interne

19 711-0415 Clevis Pin 3/8 Dia Axe de chape 3/8 Dia.

20 642-0005 Outer Tine Ass’y LH Ensemble des dents extérieur gauche

20 642-0004 Outer Tine Ass’y RH Ensemble des dents extérieur droit

21 642-0003 Inner Tine Ass’y - LH Ensemble des dents intérieur - gauche

21 642-0002 Inner Tine Ass’y - RH Ensemble des dents intérieur - droit

22 746-0918 Forward Clutch Cable Câble de commande de l’embrayage avant

23 746-0953 Reverse Clutch Cable Câble de commande de l’embrayage arrière

24 756-0585 Flat Pulley 6" Dia. Poulie plate 6 po diam.

25 750-0892 Spacer .64" Dia. x 2.4" Lg. Entretoise 0,64 diam. x 2,4 po de lg.

26 748-0350 Pulley Mounting Adapter Adapteur-montage du poulie

27 736-0112 Cupped Washer .56 ID x 1.5" Rondelle creuse 0,56 DI x 1,5

28 712-3029 Hex Jam Nut 1/2-20 Gr. 5 Conte-écrou hexagonal 1/2-20 Qual. 5

29 732-0697 Return Spring 2.7" Lg. Ressort 2,7 po de lg

30 786-0040B Reverse Mounting Bracket Support

31 736-0119 L-Wash 5/16 ID Rondelle frein 5/16 DI

32 710-0237 Hex Cap Scr. 5/16-24 x .625" Lg. Vis à chapeau hex. 5/16-24 x 0,625 po de lg

33 756-0971 Outer Engine Pulley Half Moitie extérieure de la poulie motrice

34 756-0600 Outer Engine Pulley Half Poulie-demi

35 736-0452 Cupped Washer Rondelle creuse

36 710-0152 Hex Cap Screw 3/8-24 X 1.00 Vis à chapeau hex. 3/8-24 X 1,00

37 686-0013 Reverse Arm Ass’y Bras arrière

38 712-0266 Hex Cent L-Nut 3/8-16 Contre-écrou de blocage 3/8-16

39 710-0102 Hex Screw 3/8-16 X 1.25 Vis â tête hexagonale 3/8-16 X 1.25

40 756-0313 Flat Idler 2.0 X 1.0 w/flange Tendeur de plate 2,0 X 1,0 avec collet

41 786-0041 Keeper Plate Plaque

42 710-0502A Hex Washer Scr 3/8-16 X 1.25 Vis à chapeau à six pans 3/8-16 x 1,25 po

43 786-0145A Engine Plate Plaque du moteur

44 786-0053 Tine Shield Support Support de protection des dents

45 736-0171 Lockwasher 7/16 ID Rondelle frein 7/16 DI

46 712-0240 Hex Jam Nut 7/16-20 Contre-écrou hexagonal 7/16-20

47 754-0428 “V” Belt (Forward) Courroie trapezoïdale (avant)

48 754-0429 “V” Belt (Reverse) Courroie trapezoïdale (arrière)

49 738-0930 Shoulder Bolt Vis à épaulée

21A-390

12.02.03

TWO YEAR LIMITED WARRANTY

For TWO YEARS from the date of retail purchase within Canada, MTD PRODUCTS LIMITED will, at its option, re

pair or replace, for the original purchaser, free of charge, any part or parts found to be defective in material or

workmanship.

This warranty does not cover:

1. Any part which has become inoperative due to misuse, commercial use, abuse, neglect, accident, im

proper maintenance or alteration; or

2. The unit if it has not been operated and/or maintained in accordance with the owner’s instructions fur

nished with the unit; or

3. The engine or motor or component parts thereof which carry separate warranties from their manufac

turers. Please refer to The applicable manufacturer’s warranty on these items; or

4. Batteries and normal wear parts except as noted below. Log splitter pumps, valves and cylinders or

component parts thereof are covered by a one year warranty; or

5 Routine maintenance items such as lubricants, filters, blade sharpening and tune-ups, or adjustments

such as brake, clutch or deck; or

6. Normal deterioration of the exterior finish due to use or exposure.

Full Ninety Day Warranty on Battery: For ninety (90) days from the date of retail purchase, if any battery included

with this unit proves defective in material or workmanship and our testing determines the battery will not hold a

charge, MTD PRODUCTS LIMITED will replace the battery at no charge to the original purchaser.

Additional Limited Thirty Day Warranty on Battery: After ninety (90) days but within one hundred twenty (120)

days from the date of purchase, MTD PRODUCTS LIMITED will replace the defective battery, for the original pur-

chaser, for a cost of one-half (1/2) of the current retail price of the battery in effect at the date of return.

Full Sixty Day Warranty on Normal Wear Parts: Normal wear parts are defined as belts, blade adapters, blades,

grass bags, seats, tires, rider deck wheels and clutch parts (friction wheels). These parts are warranted to the origi-

nal purchaser to be free from defects in material and workmanship for a period of sixty (60) days from the date of

retail purchase.

How to Obtain Service: Warranty service is available, with proof of purchase, through your local authorized ser-

vice dealer or distributor. If you do not know the dealer or distributor in your area, please write to the Service

Department of MTD PRODUCTS LIMITED, P. O. BOX 1386, KITCHENER, Ontario, N2G 4J1. The return of a com

plete unit will not be accepted by the factory unless prior written permission has been extended by MTD

PRODUCTS LIMITED.

Transportation Charges: Transportation charges for the movement of any power equipment unit or attachment

are the responsibility of the purchaser. Transportation charges for any part submitted for replacement under this

warranty must be paid by the purchaser unless such return is requested in writing by MTD PRODUCTS LIMITED.

Other Warranties: All other warranties, express or implied, including any implied warranty of merchantability is lim

ited in its duration to that set forth in this express limited warranty. The provisions as set forth in this warranty

provide the sole and exclusive remedy of MTD PRODUCTS LIMITED obligations arising from the sale of its prod

ucts.

MTD PRODUCTS LIMITED will not be liable for incidental or consequential loss or damage.

NOTES

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Yard Machines 300 Manuel utilisateur

Marque: Yard Machines

Modèle: 300

Catégorie: Mini motoculteurs

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