MTD Yard-Man 020 Operator's Manual

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Page 1

OPERATOR’S MANUAL

CHIPPER

SHREDDER

VACUUM

Model

020

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

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

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 effec tive 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 368022 Cleveland, Ohio 44136-9722.

MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

PRINTED IN U.S.A. FORM NO. 770-10197

(3/99)

Page 2

SECTION 1: FINDING YOUR MODEL NUMBER

This Operator’s Man ual is an importan t part of your new ch ipper shre dder vacuum. It wil l help you assem ble, prepare and maintain yo ur unit. Please read and understand wha t it says. Before you start to prepar e your chipper-shredder vacuum for its first use, please locate the model plate and copy the information from it in this Operator’s Manu al. The i nformatio n on the model p late is very im portant if you need help from you r deale r or the MTD customer support department.

• Every chipper shr edder va cuum has a model plate. You can l ocate it by standin g behind th e unit in th e operating position and looking down behind the engine. See Figure 1.

This is where your model number will be.

XXX-X-XXX-X-XXX XXXXXXXXXXX

This is where your serial number will be.

Copy the model number here:

MTD PRODUCTS INC

CLEVELAND, OHIO 44136

Copy the serial number here:

Figure 1

SECTION 2: CALLING CUSTOMER SUPPORT

• LOCATE YOUR MODEL NUMBER AND SERIAL NUMBER — Record this information in the space provided. To find your unit’s specific model number and serial number, see SECTION 1: FINDING YOUR MODEL NUMBER.

• If you are having d ifficulty a ssembling this product or if you have any questions regarding th e controls , operation or maintenance of this unit, please call the Customer Support Department.

• Customer Support can be reached by dialing: 1- (330) 220-4MTD

(4683)

1- (800)-800-7310

• Please have your model number and serial number ready when you call.

• Although both numbers are imp ortant, you will be asked to enter on ly your serial number be fore your call can be processed.

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SECTION 3: 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 CHIPPER SHEDDER VACUUM. FAILURE TO

COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL, HEED ITS WARNING.

WARNING: The Engine Exhaust from this product contains chemicals known to

the State of California to cause cancer, birth defects or other reproductive harm.

DANGER: Your chipper shredder vacuum was manufactured to be operated according to the

rules for safe oper ation in this manual . As with any type of p ower equipment, c arelessness or er ror on the part of the operator c an resul t in se rious in ju ry. This u nit is cap able of a mputati ng finge rs and hands and throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

1. GENERAL OPERATION

• Read this operator's manual carefully in its entirety before attempting to assemble this machine. Read, understand, and follow all instructions on the machine and in the manual(s) before operation. Be completely familiar with the controls and the proper use of the machine before operating it. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.

• Your chipper shredder vacuum is a powerful tool, not a plaything. Therefore, exercise extreme caution at all times. Your unit has been designed to chip/shred, vac, and blow (if equipped with attachment) vegetation found in a normal yard. Do not use it for any other purpose.

• Never allow children under 16 to operate the unit. Children 16 years and older should only operate under close parental supervision. Only responsible individuals who are familiar with these rules of safe operation should be allowed to use your unit.

• Keep the area of operation clear of all persons, particularly small children. Stop the engine when they are in the vicinity of the unit.

• When feeding material into this equipment, be extremely careful that pieces of metal, rocks, bottles, cans or other foreign objects are not included. Personal injury or damage to the machine could result.

• Always wear approved safety glasses or safety goggles, during operation and while performing an adjustment or repair, to protect eyes from foreign objects that may be thrown from the machine.

• Wear sturdy, rough-soled work shoes and close fitting slacks and shir t. Shi rt an d s lac k s th at cov er th e arms and legs and steel-toed shoes are recommended. Do not wear loose fitting clothes or jewelry, and secure hair above shoulder length. They can be caught in moving parts. Never operate a unit in bare feet, sandals or sneakers. Wear gloves when feeding material in the chipper chute.

• Do not operate the unit while under the influence of alcohol or drugs.

• Do not over reach. Keep proper footing and balance at all times.

• Never place your hands or any part of your body or clothing near rotating parts. Keep clear of the discharge opening at all times. Never insert your hands or any part of your body or clothing into the nozzle, chipper chute or discharge opening as the rotating impeller can cause serious injury.

• If it is necessary for any reason to unclog the feed intake or discharge openings or to inspect or repair any part of the machine where a moving part can come in contact wit h y our b ody or c lo t hi ng, sto p th e machine, allow it to cool, disconnect the spark plug wire from the spark plug and move it away from the spark plug before attempting to unclog, inspect or repair.

• Never operate unit without vacuum bag or if equipped with blower chute properly affixed to unit. Large open end of bag must be securely closed to prevent objects from being blown out rear of bag.

• If operating in the blower mode (optional blower chute attachment may be included with your unit):

• Do not stand or walk in front of blower discharge or aim it at bystanders, pets, vehicles, etc. Objects thrown out the discharge can cause personal injury or property damage.

• Do not direct blower discharge against a wall or other vertical obstruction. Discharged material may ricochet back at operator.

• Adjust vac nozzle height to highest position to reduce likelihood of he avier o bjects (e.g., s mall stones, pieces of glass or metal) being picked up and thrown out the discharge. Raising nozzle to highest position also maximizes air intake for improved blowing performance.

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• Never attempt to remove or empty vacuum bag when engine is running. Shut the engine off and wait for the impeller to come to a complete stop before removing the bag. The impeller continues to rotate for a few seconds afte r the eng ine is shut off. Never place any part of the body in the impeller area until you are sure the impeller has stopped rotating.

• Keep all guards and safety devices in place and operating properly.

• Do not allow an accumulation of processed material to build up in the discharge area as this will prevent proper discharge.

• When feeding material into the chipper, do not stand with your face or body directly in front of the chipper chute. Stand to one side. Material being feed may bounce back out of the chute.

• If the cutting mechanism strikes a foreign object or if your machine should start making an unusual noise or vibration, immediately stop the engine, disconnect the spark plug wire and move the wire away from the spark plug. Allow the machine to stop and take the following steps.

• Inspect for damage

• Repair or replace any damaged parts.

• Check for any loose parts and tighten to assure continued safe operation.

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

• Do not allow leaves or other debris to build up on engine’s muffler. The debris could ignite and cause a fire.

• Do not operate engine if air cleaner or cover over carburetor air intake is removed, except for adjustment. Removal of such parts could create a fire hazard.

2. CHILDREN

Tragic accidents can oc cur if the operator is not aler t to the presence of small children. Children are often attracted to the chipping and vacuuming activity. Never assume that children will remain where you last saw them.

• Keep children out of the work area and under the watchful eye of a responsible adult other than the operator.

• Be alert and turn the unit off if a child enters the area.

• Never allow children under the age of 16 to operate the chipper shredder vacuum.

3. SERVICE

• Use extreme care in handling gasoline an d other fuels. They are extremely flammable and the vapors are explosive.

• Store fuel and oil in approv ed conta iners, away from heat and open flame, an d out of the reach of children.

• Check and add fuel before starting the engine. Never remove gas cap or add fuel while the engine is running. Allow engine to cool at least two minutes before refueling.

• Replace gasoline cap securely and wipe off any spilled gasoline before starting the engine as it may cause a fire or explosion.

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

• Never refuel unit indoors because flammable vapors will accumulate in the area.

• Never store the machine or fuel container inside whe re there is an open flame or spark such as a gas hot water heater, clothes dryer or furnace.

• Never run your machine in an enclosed area as the exhaust from the engine contains carbon monoxide, which is a odorless, tasteless and deadly poisonous gas.

• To reduce fire hazard, k ee p e ng ine a nd mu ffl er free of leaves, grass, and other debris build-up. Clean up fuel and oil spillage. Allow unit to cool at least 5 minutes before storing.

• Before cleaning, repairing, or inspecting, make certain the impeller and a ll mov ing pa rts hav e stop ped. Disconnect the spa rk p lu g w ire an d k eep wire away from spark plug to prevent accidental starting. Do not use flammable solutions to clean air filter.

• Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition.

• Never tamper with safety devices. Check thei r proper operation regularly.

• After striking a foreign object, immediately stop the engine, disconnect the spark plug wire from the spark plug, and thoroughly inspect the unit for any damage. Repair damage before starting and operating unit.

• Do not alter or tamper with the engine’s governor setting. The governor controls the maximum safe operating speed of the engine. Over sp eed in g the engine is dangerous and will cause damage to the engine and to other moving parts of the machine.

• Check the vacuum bag frequently for wear. Replace if worn or damaged.

• Keep vacuum bag free of debris when not in use.

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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.

DANGER

TO AVOID SERIOUS INJURY

READ OPERATOR'S MANUAL. KEEP HANDS OUT OF INLET AND DISCHARGE OPENINGS WHILE MACHINE IS RUNNING. ROTATING BLADES ARE INSIDE. TURN ENGINE OFF AND ALLOW IMPELLER TO COME TO COMPLETE STOP BEFORE REMOVING BAG. DO NOT ATTEMPT TO CLEAR A CLOG OR JAM WITH THE ENGINE RUNNING. DO NOT OPERATE UNIT WITHOUT BAG OR OPTIONAL BLOWER CHUTE IN PLACE. DO NOT STAND OR WALK IN FRONT OF BLOWER CHUTE OR AIM IT AT BYSTANDERS. OBJECTS THROWN OUT OF DISCHARGE CAN CAUSE PERSONAL INJURY. DO NOT OPERATE WHEN CHILDREN OR OTHERS ARE AROUND. WEAR APPROVED SAFETY GLASSES.

S30259

DANGER

STOP

KEEP HANDS OUT OF INLETS WHILE ENGINE IS RUNNING. ROTATING BLADES ARE INSIDE.

S30258

Figure 2 Safety labels found on your unit

SECTION 4: ASSEMBLY INSTRUCTIONS

IMPORTANT: This unit is shipped WITHOUT

GASOLINE or OIL in the engine. After assembly, see separate engine operator’s manual for proper fuel and engine oil recommendations.

NOTE: To determine right and left hand sides of

your chipper shredder vacuum, stand behind the unit, in the operating position.

UNPACKING CHIPPER SHREDDER VACUUM

Remove staples, break glue, 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 along dotted lines and lay carton down flat. Remove styrofoam blocks from under unit and remove bag and handle assembly. Check for any other loose parts before discarding carton.

Blower Chute (If Equipped)

Wing

Nuts

Rope Guide

Upper Handle

Wing Nut

Bag

Lower Handle

LOOSE PARTS IN CARTON

See Figure 3

Handle Assembly Bag Blower Chute Assembly (If Equipped) Oil (Not Shown) Operator’s Manual Safety Glasses (Not Shown)

Wing Nuts

Carriage Screw

Figure 3

Page 6

ATTACHING THE HANDLE

1. Disconnect the spark plug wire from the spark plug and ground it against the engine.

2. Fold out the upper handle until it aligns with lower handle. Make sure the rope guide is on the right side of upper handle. See Figure 3.

3. Secure by tightening the wing nuts which connect the two handles together.

4. Remove the hairpin clips from the handle brackets and the carriage screws and wing nuts from the lower handle. See Figure 4.

5. Place lower handle over the pins on handle brackets and secure with hairpin clips, carriage screws and wing nuts.

Stud

Locking Rod

To Engine

Lower Handle

Bag Handle

Front Tab

Bag Clip

Strap

Front Tab

Lower Handle

Carriage Screw

Hairpin

Clip Handle Brackets

Wing Nuts

Figure 4

6. The rope guide is attached to the right side of upper handle. Loosen the wing nut which secures the rope guide, but do not remove.

7. Pull the starter rope out of the engine slowly and slip the starter rope through the rope guide. Tighten the wing nut.

ATTACHING THE BAG

1. Grasp bag handle with one hand and pull locking rod with other hand toward engine, while slipping bag over rim of discharge opening. See Figure 5.

2. Release locking rod so the ends are over the front tab on the bag handle to secure bag in place.

3. Snap bag clip to the top of the lower handle.

4. Place the lower straps on the bag over the top the lower handle, hooking them on the studs.

NOTE: The safety switch button attached to the

mounting bracket must be fully depressed by the tip of front tab on the bag handle when securing the bag or engine will not start.

Bag/Chute Switch

Stud

Figure 5

ATTACHING THE BLOWER CHUTE

(If Equipped)

1. Grasp blower chute with one hand and pull locking rod with other hand toward engine, while slipping blower chute over rim of dischar ge opening. See Figure 6.

2. Release locking rod so the ends are over the front tab on the blower chute to secure in place.

3. Raise the nozzle height to the highest setting when using the blower chute. Refer to nozzle height adjustment in the OPERATION section.

NOTE: The safety switch button attached to the

mounting bracket must be fully depressed by the tip of front tab on the blower chute or engine will not start.

Front Tab

To Engine

Locking Rod

Safety Switch

Blower Chute

Front Tab

Figure 6

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SECTION 5: OPER ATIO N

WEAR YOUR

SAFETY GLASSES

FORESIGHT IS BETTER

THAN NO SIGHT

Before using your Chipper Shredder Vacuum, Refer to SECTION 3: IMPORTANT SAFE OPERATION PRACTICES of this manual. Always be careful.

The operation of any ch ipper shredder vac uum blower can resul t in foreign objects being thrown into the eyes, wh ich can damage your eyes severely. Always wear the safety

glasses provided with this unit or eye shields before chipping or blowing and while performing any adjustments or repairs. We recommend Wide Vision Safety Mask for

over spectacles or standard glasses.

IMPORTANT: Care should be taken not to shut

off the engine or to run out of gasoline while feeding material into the chipper shredder vacuum. Check the fuel level periodically to avoid running out of gasoline. Do not turn the engine off until all chipping is completed to avoid jamming. If the unit runs out of gas or is turned off while it is chipping or shredding it may be necessary to unclog the unit before it can be restarted. Refer to “Removing The Flail Screen” in the MAINTENANCE section.

GAS AND OIL FILL-UP

Service the engine with gasoline and oil as

instructed in the separate engine manual packed with your chipper shredder vacuum.

Read instructions carefully.

NOTE: Your chipper shredder vacuum is shipped

without oil in the engine; however, a small amount of oil may be present from the factory. Do not overfill.

WARNING: Never fill fuel tank

indoors, with engine running or while engine is hot. Do not smoke when filling fuel tank.

TO STOP ENGINE

1. To stop engine, move throttle control lever to OFF position.

2. Disconnect spark plug wire and ground it to prevent accidental starting while equipment is unattended.

TO START ENGINE

WARNING: Be sure no one other than

the operator is standing near the chipper shredder vacuum while starting or operating. Do not operate this chipper shredder vacuum unless the bag or blower chute have been proper ly installed.

1. Attach spark plug wire to spark plug.

2. Make sure safety switch wire is connected to engine and properly grounded.

3. Engines with choke lever: Move choke lever on engine to CHOKE position. (A warm engine may not require choking.)

Engines with primer:

Prime engine as instructed in separate engine manual.

4. The throttle control is located on the engine. Move engine throttle control lever to FAST position.

5. Standing behind the unit, 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.

NOTE: You may hear a noise when reaching the

start of the compression cycle. This noise is caused by the flails and fingers, which are part of the shredding mechanism, falling into place, and should be expected. In addition, the flails and fingers will be noisy after the engine is started, until the impeller reaches full speed.

6. Pull rope with a rapid, continuous, full arm stroke. Keep a firm grip on starter handle. Let rope rewind slowly.

7. Repeat steps 4 and 5 until engine fires. When engine starts, move choke control (if so equipped) gradually to RUN position.

TO EMPTY BAG

1. Unhook bag straps from the lower handle and unsnap bag clip from the top of the lower handle. See Figure 7.

2. Grasp bag handle with one hand and pull lock rod on mounting bracket with other hand toward engine to release.

3. Remove bag from over the rim of the discharge opening. See Figure 5.

4. Twist the two buttons on the back of the bag to unlock and empty contents. See Figure 7.

5. Hold bag handle and bag clip while emptying the contents.

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Bag Handle

Bag Clip

IMPORTANT: The flail screen located inside the

housing in the discharge area. If the flail screen becomes clogged, remove and clean as instructed in SECTION 6: MAINTENANCE. For best performance, it is important to keep the chipper blade sharp. Refer to SECTION 6: MAINTENANCE.

Buttons

Strap

Figure 7

TO REMOVE BLOWER CHUTE

(If Equipped)

1. Grasp blower chute with one hand and pull lock rod on mounting bracket with other hand toward engine to release. See Figure 6.

2. Remove blower chute from over the rim of the discharge opening.

OPERATION

Place both hands on top of upper handle to push unit over yard waste. Yard waste such as leaves and pine needles can be vacuumed up through the nozzle for shredding. After material been shredded by the flail blades on the impeller assembly, it will be discharged into catcher bag or through blower chute. Do not attempt to shred or chip any material other than vegetation found in a normal yard (i.e., branches, leaves, twigs, etc.). Avoid fibrous plants such as tomato vines until they are thoroughly dried out. Material such as stalks or heavy branches up to 1 1/2" in diameter may be fed into the chipper chute. See Figure 8.

WARNING: Do not at any time make

any adjustment to the unit without first stopping engine and disconnecting spark plug wire.

NOZZLE HEIGHT ADJUSTMENT

The nozzle can be adjusted to any of five positions, ranging from 5/8" to 3 3/4" ground clearance. See Figure 9. The nozzle height has to be adjusted according to the conditions. Move the height adjustment levers forward or backward to adjust the nozzle upwards or downwards.

NOTE: In general, raise the nozzle height to vac-

uum a thick layer of leaves or to operate with the blower chute and lower nozzle height for smoother surfaces. Picture is shown without engine for clarity.

Height Adjustment Lever

Chipper Chute

Nozzle

Figure 8

Nozzle

Figure 9

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are

made to the engine while the engine is running (e.g., carburetor), keep clear of all moving parts. Be careful of heated surfaces and muffler.

Page 9

Minor carburetor adjustment may be required to compensate for differences in fuel, temperature, altitude or load. Do not make unnecessary adjustments. Factory settings are satisfactory for most applications and conditions. If adjustment is needed, refer to the separate engine manual packed with your chipper shredder vacuum.

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.

REMOVING THE FLAIL SCREEN

If the discharge area becomes clogged, remove the flail screen and clean area as follows.

1. Stop the engine. Make certain the chipper shredder vacuum has come to a complete stop. Disconnect the spark plug wire before unclogging the discharge chute.

2. Remove the vacuum bag or blower chute from the unit as instructed in the OPERATION section to obtain access to flail screen. See Figure 10.

SECTION 6: MAINTENANCE

WARNING: Always stop engine and

disconnect spark plug wire before cleaning, lubricating or performing any repairs or maintenance.

CLEANING

Clean the chipper shredder vacuum thoroughly after each use. Wash the bag periodically with water. Allow to dry thoroughly in the shade. Do not use heat.

ENGINE

Refer to the separate engine manual for engine maintenance instructions.

Maintain engine oil level as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully. Service air clean er every 25 hours under normal conditions. Clean every few hours 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. The spark plug should be cleaned and the gap reset once a season. 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 (engine blower housing area) clean to permit proper air circulation which is essential to engine performance. Be certain to remove all leaves and combustible debris from muffler area.

Hex Screw & Flat Washer

Lock Nut

3. Remove hex screw on right side of unit that attaches to the flail screen. See Figure 11.

4. Remove hex screw and flat washer on top of rear housing near mounting bracket and the lock nut that secures flail screen. See Figure 10 and Figure

12.

5. Remove and clean the screen by scraping or washing with water. Reinstall the flail screen.

Flail Screen

REAR VIEW

Figure 10

LUBRICATION

Wheels- Place a few drops of SAE 30 oil on each

shoulder screw once a season. See Figure 12. Nozzle height adjustment levers- Lubricate nozzle height adjustment levers at pivot point with light oil. Refer to Figure 9. Lock Rod- Lubricate the lock rod and compression springs which attach to the mounting bracket. Refer to Figure 5.

Side Hex Screw

Figure 11

Page 10

Top Hex Screw

Figure 12

SHARPENING OR REPLACING CHIPPER BLADE

Because the engine on this unit has a tapered crankshaft, a special impeller removal tool (part number 753-

0638) is required to remove the impeller assembly. For further assistance, contact your local service dealer.

NOTE: When tipping the unit, empty the fuel tank and

keep engine spark plug side up.

1. Disconnect the spark plug wire and ground it away from the spark plug.

2. Remove the front hubcaps, shoulder screws, wave washers, and bell washers that attach to the front wheels. See Figure 13.

3. Remove the shoulder screws that go through the pivot arms and height bracket adjusters to the front support brace. See Figure 13.

Lower Housing

Nozzle Screws

Screws

Figure 14

5. Remove lock nut that secures flail screen to the lower housing. The flail screen does not have to be removed. See Figure 10 and Figure 12.

6. Remove the hex bolt, lock washer and flat washer that secure the impeller assembly to the crankshaft. See Figure 15.

Upper

Chipper Blade

Housing

Impeller Assembly

Support Brace

Height Bracket Adjuster

Shoulder Screw

Pivot Arm

Shoulder Screw

Bell Washer

Front Wheel

Wave Washer

Hubcap

Figure 13

4. Remove the three screws on the upper housing that secure the nozzle cover and the nine screws that secure the lower housing to the upper housing. See Figure 14.

Hex Bolt Lock Washer Flat Washer

Flail Blade

BOTTOM VIEW

Figure 15

7. Apply lubricant to the threads of impeller removal tool and then thread the tool into the crankshaft. Stop when the impeller assembly can move on the crankshaft.

8. Remove the impeller assembly from the crankshaft. Unthread the impeller removal tool from the impel ler assembly.

9. Remove the blade using a 3/16" allen wrench on the outside of the blade and 1/2" wrench on the impeller assembly.

Page 11

10. Replace or sharpen chipper blade.

11. When sharpening blade, protect hands by using gloves and follow the original angle of grind.

12. Reassemble by performing steps 1 through 9 in reverse order.

• Tighten blade screws to 210 - 250 in-lbs.

SECTION 7: OFF-SEASON STORAGE

The following steps should be taken to prepare your chipper shredder vacuum for storage.

1. Remove all dirt from exterior of engine and equip-

• Tighten impeller bolt to 375 - 425 in-lbs.

2. Refer to engine manual for correct engine storage

NOTE: Make certain blade is reassembled with the

sharp edge facing upward. See Figure 16.

Flail Blade

Figure 16

Chipper Blade

Impeller

Assembly

3. Wipe unit with an oiled rag to prevent rust (use a

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

SECTION 8: TROUBLE SHOOTING GUIDE

ment.

instructions.

light oil or silicone), especially if storing in an unventilated or metal storage shed.

rosive materials, such as fertilizer.

Trouble Possible Cause(s) Corrective Action

Engine fails to start Fuel tank empty or stale fuel.

Spark plug wire disconnected. Cannot pull recoil cord.

Choke not in ON position. Faulty sp ark plu g. Safety switch not depressed.

Safety switch wire is disconnected to engine or not properly grounded.

Loss of power; operation erratic

Too much vibration Loose parts or damaged

Unit does not discharge Discharge chute clogged.

Rate of discharge slows considerably or composition of discharged material changes

Spark plug wire loose. Unit running on CHOKE. Blocked fuel lin e or stale fuel.

Water or dirt in fuel system. Low engine RPM.

impeller.

Foreign object lodged in impeller. Low engine RPM. Vacuum bag is full.

Low engine RPM. Chipper blade dull.

Fill tank with clean, fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is added. Connect wire to spark plug.

Obstruction lodged in impeller. Disconnect spark plug wire and remove lodged object. Move CHOKE (if equipped) to ON position. Clean, adjust gap or replace. Safety switch must be depressed by the front tab on the bag handle when securing the bag. Connect safe ty switc h wire to engine c onnector and g round to mounting bracket.

Connect and tighten spark plug wire. Move choke lever (if equipped) to OFF position. Clean fuel line; fill tank with clean fresh gasoline. Fuel will not last over thirty days unless a fuel stabilizer is used. Disconnect fuel line at carburetor to drain fuel tank. Refill with fresh fuel. Always run engine at full throttle.

Stop engine immediatel y and dis co nne ct sp ark plu g wire . Have unit ser viced by a an authorized service dealer.

Stop engine immediatel y and dis co nne ct sp ark plu g wire . Clean flail screen and inside of discharge opening. See Maintenance section of this manual. Stop engine immediatel y and dis co nne ct sp ark plu g wire . Remove lodged object. Always run engine at full throttle. Empty bag.

Always run engine at full throttle. Replace chipper blade or see your authorized service dealer.

Page 12

Model 020

27 28

Page 13

REF

NO.

PART

NO.

DESCRIPTION

1 725-1700 Switch Cover 2 725-3166 Safety Switch 3 710-0224 Hex Washer Screw #10-16 x .50 4 629-0920 Wire Harness 5 710-0604 Hex Washer Screw 5/16-18 x .625 6 714-0104 Cotter Pin 7 736-0264 Flat Washer .330 ID x .630 OD 8 732-0962 Compression Spring

9 781-0778 Mounting Brack et 10 747-1153 Lock Rod 11 710-3008 Hex Cap Screw 5/16-18 x .75 12 681-0122 Chipper Chute Ass’y 13 726-0454 U-Clip Lock Nut 5/16-18 15 710-0502A Hex Washer Screw 3/8-16 x 1.25 16 710-0969 Screw #12-16 x 1.0 17 710-3195 Hex Cap Screw 5/16-18 x 4.5 18 710-3025 Hex Cap Screw 5/16-18 x .625 20 781-0720 Upper Housing 21 710-1054 Hex Screw 5/16-24 x 1.0

REF NO.

PART

NO.

DESCRIPTION

22 781-0490 Chipper Blade 23 736-0119 Lock Was he r 5/16 24 712-0411 Hex Lock Nut 5/16-24 25 681-0152 Impeller Ass’y 26 719-0329 Flail Blade 27 781-0735 Pin Clip 28 711-1401 Clevis Pin 29 715-0166 Spiral Pin 30 736-0247 Flat Washer 3/8 ID x 1.25 OD 31 736-0217 Lock Was he r 3/8 32 710-0818 Hex Cap Screw 3/8-24 x 2.0 33 681-0154 Screen Ass’y 34 710-3038 Hex Cap Screw 5/16-18 x .875 35 781-0721 Lower Housing 36 712-3004A Lock Nut 5/16-18 37 731-2265 Nozzle Cover 38 712-0158 Lock Nut 5/16-18 39 731-1402B Shroud 40 731-1613 Safety Switch Cover

NOTE: For paint ed parts, please refer to the list of color codes below. Please add the applicable color code, wherever needed, to the part number to order a replacement part. For instance, if a part numbered 700-xxxx is painted Yard-Man Green, the part number to order would be 700-xxxx-0665.

Yard-Man Green: 0665

Yard-Man Yellow: 0674

Powder Black: 0637

Page 14

Model 020

Page 15

REF

NO.

1 720-0295 Foam Grip 2 749-0438C Upper Handle 3 720-0279 Knob 4 710-1205 Eye Bolt 5 720-0276 Handle Knob 5/16-18 6 710-1174 Carriage Bolt 7 749-0907A Lower Handle 8 664-0090 Bag Ass’y 9 711-1293 Studs

10 712-0397 Wing Nut 1/4-20 11 710-0703 Carriage Screw 1/4-20 x .75 12 726-0453 Lock U-Clip Nut 3/8-16 13 781-0777 Rear Wheel Support Brace 14 712-3004A Flange Lock Nut 5/16-18 15 714-0104 Cotter Pin 16 681-0155 Handle Bracket Ass’y LH

17 710-3025 Hex Cap Screw 5/16-18 x .625

PART

NO.

681-0156 Handle Bracket Ass’y RH (Not Shown)

DESCRIPTION

REF

NO.

18 736-0105 Bell Washer .401 ID x .870 OD 19 734-1992 Wheel 9 x 2 20 738-10 15 Shoulder Screw 3/8-16 21 731-1426 Hubcap 22 781-0725 Front Wheel Support Brace 23 781-0765 Hgt Bracket Adjuster LH

25 748-04 17 Pivot Arm 26 747-1100 Handle Height Adjuster 27 738-10 17 Shoulder Screw 3/8-16 28 732-0864 Height Adjuster Plate Spring 29 710-0653 Hex Washer Screw 1/4-20 x . 375 30 782-0578 Spring Lever Support Bracket 31 710-0642 Hex Washer Screw 1/4-20 x . 75 32 734-1978 Wheel 8 x 2 33 736-0232 Wave Washer .531 ID x .781 OD 34 738-02 13 Shoulder Screw 35 631-0090 Blower Chute Ass’y (If Equipped)

PART

NO.

781-0766 Hgt Bracket Adjuster RH (Not Shown)

DESCRIPTION

NOTE: If your unit is not equipped with an blower chute assembly, you may purchase one by ordering OEM-290-012.

Page 16

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD

PRODUCTS INC (“MTD”) with respect to new mercha ndise

purchased and used in the United States, its possessions

and territories.

MTD warrants this product against defects in material and

workmanship for a period of two (2) years commencing on

the date of original purc ha se an d w i ll, at its option, repair or

replace, free of charge, any part found to be defective in

material or workmanship. This limited warranty shal l only

apply if this product has been operated and maintained in

accordance with the Operator’s Manual furnished with the

product, a nd has not bee n subj ect to misuse, abuse, com-

mercial use, neglect, accident, improper maintenance,

alteration, vandalism, theft, fire, water or damage because

of other peril or natur a l di sa ste r. Damage resulting from the

installation or use of any accessory or attachment not

approved by MTD Products Inc. for use with the product(s)

covered by this manual will void your warranty as to any

resulting damages.

Normal wear parts or components thereof are subject to

separate terms as follows: All normal wear part or compo-

nent 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 par t failures will be covered

ONLY IF caused by defects in material or wor kmanship of

OTHER component parts. Normal wear parts and compo-

nents include, but are not limited to, belts, blades, blade

adapters, grass bags, rider deck wheels, seats, snow

thrower skid shoes, shave plates and tires. Batteries are

covered by a 90-day limited replacement warranty.

HOW T O OBTAIN SERVICE: Warranty service is availa b le,

WITH PROOF OF PURCHASE THROUGH YOUR LOCAL

AUTHORIZED SERVICE DEALER. To locate the dealer in

your area, please check for a listing in the Yellow Pages or

contact the Customer Ser vice Department of MTD PROD-

UCTS INC by calling 1-800-800-7310 or writing to P.O. Box

368022, Cleveland, Ohio 44136-9722. No product returned

directly to the factor y will be accepted unless prior written

permission has been extended by the Customer Service

Department of MTD PRODUCTS INC.

b.Routine maintenance items such as lubricants, filters,

blade shar pening and tune-ups, or adjustments such as brake adjustments, clutch adjustments or deck adjustments; and nor mal deterioration of the exterior finish due to use or exposure.

c. Log splitter pumps, valves and cylinders have a sepa-

rate one year warranty.

d. MTD does not extend any warranty for products sold

or exported outside of the United States of America, its possessions and territories, except those sold through MTD’s authorized channels of expor t distribu- tion.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the par ts as ident ified. No o ther express war ranty or guaranty, whether writ ten or ora l, except as mentioned above, given by any person or entity, including a dealer or retailer, with respect to any product shall bind MTD. During the period of the Warranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states do not

allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set f orth in this W a rranty pr o vide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow the exclusion or limita-

tion of incidental or consequential damages, so the above exclusion or limitation may not apply to you.)

In no event shall recover y of any kind be greater than th e amount of the purchase price o f the pro duct sold . Alter ati on of the 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 use or misuse or inability to use the product.

This limited warranty does not provide coverage in the

following cases:

a.The engine or component par ts thereof. These items

carry a separate manufacturer’s warranty. Please refer to the applicable manufacturer’s warranty on these items.

This limited warranty shall not extend to anyone other than the original purchaser, original lessee or 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.