Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OPERATOR’S MANUAL
*Model Series 460 Shown
Chipper Shredder — Model Series 450 and 460
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brushcovered 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.
PRINTED IN U.S.A. |
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FORM NO. 770-10048J |
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 |
5/9/2007 |
This Operator’s Manual is an important part of your new chipper shredder. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says.
Table of Contents
Customer Support............................................... |
2 |
Maintaining Your Chipper Shredder................ |
12 |
Safety Labels....................................................... |
3 |
Troubleshooting................................................ |
14 |
Safe Operation Practices.................................... |
4 |
Parts List............................................................ |
16 |
Setting Up Your Chipper Shredder.................... |
6 |
Warranty............................................................. |
20 |
Operating Your Chipper Shredder................... |
10 |
Español.............................................................. |
21 |
Finding and Recording Model Number
BEFORE YOU START ASSEMBLING |
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YOUR NEW EQUIPMENT, |
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please locate the model plate on the equipment and copy |
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Model Number |
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Serial Number |
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the information to the sample model plate provided to the |
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right. You can locate the model plate by standing behind the |
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unit and looking down at the frame below the engine. This |
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information will be necessary to use the manufacturer’s web |
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site and/or obtain assistance from the Customer Support |
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Department or an authorized service dealer. |
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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, you can seek help from the experts. Choose from the options below:
1.Visit mtdproducts.com. Click on the Customer Service menu option.
2.Phone a Customer Support Representative at 1.800.800.7310. Spanish speaking agents are available.
3.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.
Safety Labels Found On Your
Chipper Shredder
DANGER TO AVOID SERIOUS INJURY:
•Do not operate on uneven ground where unit is unstable. Do not operate on pavement, gravel or other hard surfaces since objects can ricochet and cause injury.
•To avoid a fire hazard, keep leaves, grass, and other combustible materials away from hot engine and muffler.
•Keep children and others away from area of operation.
•Wear approved safety glasses, gloves and ear protection.
INSTRUCTIONS: TO RAISE AND LOWER HOPPER
DANGER TO AVOID SERIOUS INJURY:
• Read the owner's manual(s) before starting and using unit.
•Keep all shields and guards in place and securely attached.
•Keep hands, feet, face, clothing and long hair out of Shredder Hopper, Chipper Chute and Discharge Chute while the engine is running. Rotating cutting
blades inside these openings will cause serious personal injury if contacted. Material being processed may bounce back from inlet openings or be thrown from the discharge chute. Long hair or loose clothing may be pulled sucked into the inlet openings.
•Do not place branches over 1/ inch diameter into the large Shredder Hopper. Branches over 1/ inch in diameter should be placed in the Small Chipper Chute.
•If the chipped shredder jams or becomes clogged, immediately shut off the engine and wait for all moving parts to come to a complete stop before clearing.
•Do not install remove, adjust, or service the discharge screen or any other part while the engine is running. Blade contact can occur.
WARNING |
DO NOT DEPOSIT |
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TO AVOI |
MATERIAL LARGER THAN |
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1/ " DIAMETER IN LARGE |
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EYE INJURY, |
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SHREDDER HOPPER. |
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WEAR SAFTEY |
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THIS MAY DAMAGE |
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GLASSES. |
MACHINE. |
WARNING
DANGER
•ROTATING CUTTING BLADES.KEEP HANDS AND FEET OUT OF OPENING WHILE MACHINE IS RUNNING.
•DO NOT OPERATE THIS MACHINE UNLESS THE CHUTE DEFLECTOR HAS BEEN PROPERLY INSTALLED AND IS SECURED WITH THE HAND KNOBS.
• Do not transport machine while |
• Do not allow anyone to sit or ride on |
engine is running. |
shredder. |
• Shredder should not be towed on any |
• Do not tow shredder for long distances. |
street, highway or public road. |
• Before towing, be certain the shredder |
• Do not tow shredder over 10 m.p.h. |
is correctly attached to towing vehicle. |
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S30 |
DO NOT OPERATE THIS MACHINE
UNLESS THE CHUTE DEFLECTOR
HAS BEEN PROPERLY INSTALLED.
1
Safety Labels
WARNING
DO NOT remove safety (or any) labels from chipper shredder for any reason.
2
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 this machine. Failure to comply with these instructions may result
in personal injury. When you see this symbol.
HEED ITS 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.
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: This machine 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 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.
Training |
Preparation |
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 16 years old to operate this machine. Children 16 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.
6.Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
7.Do not put hands and feet near rotating parts or in the feeding chambers and discharge opening. Contact with the rotating impeller can amputate fingers, hands, and feet.
8.Never attempt to unclog either the feed intake or discharge opening, remove or empty bag, or inspect and repair the machine while the engine is running. Shut the engine off and wait until all moving parts have come to a complete stop. Disconnect the spark plug wire and ground it against the engine.
1.Thoroughly inspect the area where the equipment is to be used. Remove all rocks, bottles, cans, or other foreign objects which could be picked up or thrown and cause personal injury or damage to the machine.
2.Always wear safety glasses or safety goggles during operation or while performing an adjustment or repair, to protect eyes. Thrown objects which ricochet can cause serious injury to the eyes.
3.Wear sturdy, rough-soled work shoes and close-fitting slacks and shirts. Loose fitting clothes or jewelry can be caught in movable parts. Never operate this machine
in bare feet or sandals. Wear leather work gloves when feeding material in the chipper chute.
4.Before starting, check all bolts and screws for proper tightness to be sure the machine is in safe working condition. Also, visually inspect machine for any damage at frequent intervals.
5.Maintain or replace safety and instructions labels, as necessary.
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.
a.Use only an approved gasoline container.
b.Extinguish all cigarettes, cigars, pipes, and other sources of ignition.
c.Never fuel machine indoors.
d.Never remove gas cap or add fuel while the engine is hot or running.
e.Allow engine to cool at least two minutes before refueling.
f.Never over fill fuel tank. Fill tank to no more than 1/2 inch below bottom of filler neck to provide space for fuel expansion.
g.Replace gasoline cap and tighten securely.
h.If gasoline is spilled, wipe it off the engine and equipment. Move machine to another area. Wait 5 minutes before starting the engine.
i.Never store the machine or fuel container inside where there is an open flame, spark, or pilot light (e.g. furnace, water heater, space heater, clothes dryer, etc.)
j.To reduce a fire hazard, keep machine free of grass, leaves, or other debris build-up. Clean up oil or fuel spillage and remove any fuel soaked debris.
k.Allow machine to cool at least 5 minutes before storing.
Operation
1.Do not put hands and feet near rotating parts or in the feeding chambers and discharge opening. Contact with the rotating impeller can amputate fingers, hands, and feet.
2.Before starting the machine, make sure the chipper chute, feed intake, and cutting chamber are empty and free of all debris.
3.Thoroughly inspect all material to be shredded and remove any metal, rocks, bottles, cans, or other foreign objects which could cause personal injury or damage to the machine.
4.f it becomes necessary to push material through the shredder hopper, use a small diameter stick. Do not use your hands or feet.
5.f the impeller strikes a foreign object or if your machine should start making an unusual noise or vibration, immediately shut the engine off. Allow the impeller to come to a complete stop. Disconnect the spark plug wire, ground it against the engine and perform the following steps:
a.Inspect for damage.
b.Repair or replace any damaged parts.
c.Check for any loose parts and tighten to assure continued safe operation.
6.Do not allow an accumulation of processed material to build up in the discharge area. This can prevent proper discharge and result in kickback of material through the feed opening.
7.Do not attempt to shred or chip material larger than specified on the machine or in this manual. Personal injury or machine damage could result.
8.Never attempt to unclog either the feed intake or discharge opening while the engine is running. Shut the engine off, wait until all moving parts have stopped, disconnect the spark plug wire and ground it against the engine before clearing debris.
9.Never operate without the shredder hopper, chipper chute, or chute deflector properly attached to the machine. Never empty or change discharge bag while the engine is running.
10.Keep all guards, deflectors and safety devices in place and operating properly.
11.Keep your face and body back and to the side of the chipper chute while feeding material into the machine to avoid accidental kickback injuries.
12.Never operate this machine without good visibility or light.
13.Do not operate this machine on a paved, gravel or non-level surface.
14.Do not operate this machine while under the influence of alcohol or drugs.
15.Muffler and engine become hot and can cause a burn. Do not touch.
16.Never pick up or carry machine while the engine is running.
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 and repair, if needed.
3.Before cleaning, repairing, or inspecting, stop the engine and make certain the impeller and all moving parts have stopped. Disconnect the spark plug wire and ground it against the engine to prevent unintended starting.
4.Do not change the engine governor settings or overspeed 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.
Do not modify engine
To avoid serious injury or death, do not modify engine in any way. Tampering with the governor setting can lead to a runaway engine and cause it to operate at unsafe speeds. Never tamper with factory setting of engine governor.
Notice regarding Emissions
Engines which are certified to comply with California and federal EPA emission regulations for SORE (Small Off Road Equipment) are certified to operate on regular unleaded gasoline, and may include the following emission control systems: Engine Modification (EM) and Three Way Catalyst (TWC) if so equipped.
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.
2
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 this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol.
HEED IT’S 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.
3
Setting Up
Your Chipper
Shredder
IMPORTANT
This unit is shipped without gasoline or oil in the engine. Be certain to service engine with gasoline and oil as instructed in the separate engine manual before operating your machine.
NOTE: All references in this manual to the left or right side of the chipper shredder is from the operating position only. Exceptions, if any, will be specified.
NOTE: This Operators Manual covers a range of product specifications for various models. Characteristics and features discussed and/or illustrated in this manual may not be applicable to all models.
MTD LLC reserves the right to change product specifications, designs and equipment without notice and without incurring obligation.
A
B 
C
Figure 3-1
A
B
Figure 3-2
B
A
B
A
Figure 3-3
IMPORTANT: This unit is shipped without gasoline or oil in the engine. Be certain to service engine with gasoline and oil as instructed in the separate engine manual before operating your machine.
Loose Parts In Carton
a. |
Hopper Assembly |
d. Bag |
b. |
Chute Deflector |
e. Safety Glasses |
c. |
Chipper Chute |
f. Engine Oil |
Attaching The Hopper
Assembly
1.a. Remove six hex nuts and washers from the weld studs on the impeller housing. Do not remove the support plate. See Figure 3-1.
b.Place hopper assembly into position in front of impeller housing, aligning holes in hopper assembly collar with weld studs.
c.Slide hopper assembly onto weld studs and replace washers and hex nuts. Do not tighten completely.
2.a. Lift hopper assembly up to impeller bracket assembly.
b.Slide the release rod out slightly to hook the hopper bracket onto the rod. See Figure 3-2.
c.Tighten the six hex nuts that secure hopper assembly to impeller housing and also tighten the hex nuts that secure hopper bracket to hopper assembly.
Attaching The Chute Deflector
3.a. Remove the wing knobs from each side of the lower impeller housing.
b.Remove the hex lock nut, spacers, and hex bolt from the top of the impeller housing. See Figure 3-3.
4.a. Align the chute deflector in position on the discharge opening and insert hex bolt with spacer through hinge on chute deflector (spacers fit inside of hinges). See Figure 3-4.
b.Place second spacer over hex bolt inside other hinge and secure with hex lock nut.
c.Secure both sides of chute deflector to impeller housing using wing knobs previously removed.
Attaching The Chipper Chute
(Model Series 460)
B
A
C
3
Setting Up
Your Chipper
Shredder
5. a. Remove the three cupped washers and hex nuts |
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from weld studs around the opening on the side of |
Figure 3-4 |
IMPORTANT |
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the impeller housing. See Figure 3-5. |
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This unit is shipped |
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b. Remove the hex bolts, flat washers, and lock nuts |
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without gasoline or |
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from the two holes on the upper end of the support |
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oil in the engine. Be |
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brace. |
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6. a. Align the chipper chute over the weld studs, so the |
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certain to service |
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slot in the bottom of the chute is facing down. |
B |
engine with gasoline |
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b. Secure chipper chute with the three cupped |
and oil as instructed |
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washers (cupped side against the chipper chute) |
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in the separate engine |
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and hex nuts previously removed. Do not tighten |
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manual before operat- |
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the nuts at this time. See Figure 3-6. |
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A |
ing your machine. |
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NOTE: All references |
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in this manual to the |
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left or right side of |
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the chipper shredder |
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is from the operating |
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Fgure 3-5 |
position only. Excep- |
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tions, if any, will be |
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specified. |
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NOTE: This Operators |
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Manual covers a range |
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of product specifica- |
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tions for various |
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models. Characteristics |
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and features discussed |
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and/or illustrated in this |
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A |
manual may not be ap- |
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plicable to all models. |
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B |
MTD LLC reserves the |
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right to change product |
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specifications, designs |
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and equipment without |
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Figure 3-6 |
notice and without |
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incurring obligation. |
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3 |
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7. The chipper shredder was shipped with one end of |
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the support brace already secured to the lower frame. |
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Loosen but do not remove the bolts securing the brace |
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to the frame. See Figure 3-7. |
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a. Align the holes in the chute with the holes in the top |
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of the brace and attach brace to chipper chute with |
Setting Up |
A |
hardware previously removed. Tighten securely. |
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b. Tighten the bolts securing the support brace to the |
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Your Chipper |
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frame. |
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Shredder |
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c. Tighten the three nuts on the weld studs holding |
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the chipper chute to the impeller housing. |
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B |
Attaching The Chipper Chute |
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(Model Series 450) |
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C |
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8. a. Remove the three cupped washers and hex nuts |
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from weld studs around the opening on the side of |
IMPORTANT |
Figure 3-7 |
the impeller housing. See Figure 3-8. |
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This unit is shipped |
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without gasoline or |
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oil in the engine. Be |
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certain to service |
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engine with gasoline |
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and oil as instructed |
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in the separate engine |
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manual before operat- |
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ing your machine. |
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NOTE: All references |
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in this manual to the |
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left or right side of |
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the chipper shredder |
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is from the operating |
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position only. Excep- |
Figure 3-8 |
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tions, if any, will be |
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specified. |
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NOTE: This Operators Manual covers a range of product specifications for various models. Characteristics and features discussed and/or illustrated in this manual may not be applicable to all models. MTD LLC reserves the right to change product specifications, designs and equipment without notice and without incurring obligation.
9.a. Align the chipper chute over the weld studs, so the slot in the bottom of the chute is facing down.
b.Secure chipper chute with the three cupped washers (cupped side against the chipper chute) and hex nuts previously removed. Tighten the nuts at this time. See Figure 3-9.
Attaching The Bag
10.To attach the bag:
a.Place the opening of the bag completely over the chute deflector.
b.Pull on the drawstring until the bag is tight around chute deflector opening.
c.Clip drawstring back on itself, tight against chute deflector to secure into position. See Figure 3-10.
B
Figure 3-9
C
A
Figure 3-10
3
Setting Up
Your Chipper
Shredder
IMPORTANT
This unit is shipped without gasoline or oil in the engine. Be certain to service engine with gasoline and oil as instructed in the separate engine manual before operating your machine.
NOTE: All references in this manual to the left or right side of the chipper shredder is from the operating position only. Exceptions, if any, will be specified.
NOTE: This Operators Manual covers a range of product specifications for various models. Characteristics and features discussed and/or illustrated in this manual may not be applicable to all models. MTD LLC reserves the right to change product specifications, designs and equipment without notice and without incurring obligation.
4
Operating
Your Chipper
Shredder
WARNING
The operation of any chipper shredder can result in foreign objects being thrown into the eyes, which can damage your eyes severely. Always wear the safety glasses provided with this unit or eye shields before chipping or shredding and while performing any adjustments or repairs.
Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition.
Know Your Chipper Shredder
Hopper Assembly 
Release Rod
Chipper Chute 
Tow Bar†
† If Equipped
*Model 464 Shown with Optional Tow Bar
Figure 4-1
Now that you have set up your chipper shredder for operation, get aquainted with its controls and features. These are described below and illustrated on this page. This knowledge will allow you to use your new equipment to its fullest potential.
Chipper Chute
Allows twigs and small branches up to 3” (2” for Model Series 450) in diameter to be fed into the impeller for chipping. See Figure 4-1.
Hopper Assembly
Allow leaves and small branches up to 1/2 diameter to be fed into the impeller for chipping and shredding.
Material can be raked into hopper assembly by lowering the hopper assembly. See Figure 4-1.
Gas and Oil Fill-Up
1.Check oil level and add oil if necessary. Follow engine manual for this. See Engine Manual for location of the oil fill.
2.Service the engine with gasoline as instructed in the engine manual. See Engine Manual for location of gas fill.
WARNING: Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition.
Release Rod
The release rod is located on the impeller bracket assembly and it is used to release or lock the hopper when raising or lowering. See Figure 4-1.
Tow Bar (If Equipped)
Use the tow bar to tow the chipper shredder behind a tractor to a job site. See Figure 4-1.
NOTE: If your unit is not equipped with a tow bar, you may contact Customer Support as instructed on page 2 for information regarding price and availability.
WARNING: The operation of any chipper shredder can result in foreign objects being thrown into the eyes, which can damage your eyes severely. Always wear the safety glasses provided with this unit or eye shields before chipping or shredding and while performing any adjustments or repairs.
10
This Operators Manual covers a range of product specifications for various models. Characteristics and features discussed and/or illustrated in this manual may not
be applicable to all models. MTD LLC reserves the right STOP to change product specifications, designs and equipment
without notice and without incurring obligation.
Starting Engine
WARNING: Never run the engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
IMPORTANT: Because this manual covers several different model units, different starting instructions may apply to your particular engine. Some engines may have a fuel petcock, some may not. Some engines may have On/Off switches, other may not. Some units will utilize a choke system, while others will require priming. These factors depend on what make and model engine comes with your particular unit. For these reasons, please refer to the engine operator’s manual for the correct starting procedure.
1.Attach spark plug wire to spark plug. Make certain the metal cap on the end of the spark plug is fastened securely over the metal tip on the spark plug.
2.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.
3.The throttle control lever is located on the engine. Move engine throttle control lever to FAST or START position. See Figure 4-2.
4.Grasp starter handle and pull rope out slowly until engine reaches start of compression cycle (rope will pull slightly harder at this point).
NOTE: A noise will be heard when finding the start of the compression cycle. This noise is caused by the flails and fingers, which are part of the shredding mechanism, and it should be expected until the impeller reaches full speed.
5.Pull rope with a rapid, continuous, full arm stroke. Keep a firm grip on starter handle. Let rope rewind slowly.
6.Repeat the previous steps until engine fires. When engine starts, move choke control (if equipped) gradually to RUN position.
Figure 4-2
Stopping Engine
1.Move throttle control lever to STOP or OFF position.
2.Disconnect spark plug wire from spark plug and ground against the engine.
NOTE: See your engine manual packed with your unit for more detailed instructions.
Using The Chipper Shredder
Yard waste such as leaves and pine needles can be raked up through the hopper assembly for shredding. After material has been shredded by the flail blades on the impeller assembly, it will be discharged out of opening or into catcher bag. 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. Twigs and small branches up to 3” (2” for Model Series 450) in diameter can be fed into the chipper chute.
Lowering The Hopper Assembly
1.With one hand grasp the handle at the top of the hopper assembly and lift slightly.
2.With the other hand pull out on the release rod and lower the hopper assembly to the ground. See Figure 4-1.
To Empty Bag
1.Un-clip drawstring and loosen bag from chute deflector opening.
2.Empty bag and reattach to the discharge chute opening. Pull on the drawstring until the bag is tight around the chute opening and clip the drawstring tight against the chute deflector.
IMPORTANT: The flail screen is located inside the housing in the discharge area. If the flail screen becomes clogged, remove and clean as instructed in SECTION 5: MAINTAINING YOUR CHIPPER SHREDDER. For best performance, it is also important to keep the chipper blade sharp.
4
Operating
Your Chipper
Shredder
WARNING
Never run the engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
NOTE: A noise will be heard when finding the start of the compression cycle. This noise is caused by
the flails and fingers, which are part of the shredding mechanism, and it should be expected until the impeller reaches full speed.
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