Yard Man 203 User Manual

Operator’s Manual  
Chipper Shredder  
Vacuum  
Model Number  
203  
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 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.  
MTD LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019  
PRINTED IN U.S.A.  
770-10023F.
FORM NO.  
(4/04)  
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 this machine. 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: 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.  
2. Always wear safety glasses or safety goggles  
TRAINING  
during operation or while performing an adjustment  
1. Read, understand, and follow all instructions on the  
or repair, to protect eyes. Thrown objects which  
machine and in the manual(s) before attempting to  
ricochet can cause serious injury to the eyes.  
assemble and operate. Keep this manual in a safe  
3. Wear sturdy, rough-soled work shoes and close-  
place for future and regular reference and for  
ordering replacement parts.  
2. Be familiar with all controls and their proper  
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  
operation. Know how to stop the machine and  
leather work gloves when feeding material in the  
disengage them quickly.  
chipper chute.  
3. Never allow children under 16 years old to operate  
4. Before starting, check all bolts and screws for  
this machine. Children 16 years old and over  
should read and understand the operation  
proper tightness to be sure the machine is in safe  
working condition. Also, visually inspect machine  
instructions and safety rules in this manual and  
for any damage at frequent intervals.  
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  
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  
the feeding chambers and discharge opening.  
other sources of ignition.  
Contact with the rotating impeller can amputate  
fingers, hands, and feet.  
8. Never attempt to unclog either the feed intake or  
c. Never fuel machine indoors.  
d. Never remove gas cap or add while the  
engine is hot or running.  
discharge opening, remove or empty vacuum bag,  
e. Allow engine to cool at least two minutes  
or inspect and repair the machine while the engine  
before refueling.  
is running. Shut the engine off and wait until all  
f. Never over fill fuel tank. Fill tank to no more  
moving parts have come to a complete stop.  
than 1/2 inch below bottom of filler neck to  
Disconnect the spark plug wire and ground it  
against the engine.  
provide space for fuel expansion.  
g. Replace gasoline cap and tighten securely.  
h. If gasoline is spilled, wipe it off the engine  
PREPARATION  
and equipment. Move machine to another  
area. Wait 5 minutes before starting 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.  
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.).  
3
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.  
11. Keep all guards, deflectors and safety devices in  
place and operating properly.  
12. 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.  
13. Never operate this machine without good visibility  
or light. Always be sure of your footing and keep a  
firm hold on the handles.  
14. Do not operate this machine on a gravel surface.  
15. Do not operate this machine while under the  
influence of alcohol or drugs.  
16. Muffler and engine become hot and can cause a  
burn. Do not touch.  
17. Never pick up or carry machine while the engine is  
running.  
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.  
MAINTENANCE AND STORAGE  
1. Never tamper with safety devices. Check their  
proper operation regularly.  
4. If 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:  
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.  
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 vacuum bag and discharge  
chute properly attached to the machine. Never  
empty or change vacuum bag while the engine is  
running. Zippered end of vacuum bag must be kept  
closed at all times during operation.  
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.  
10. Never operate without either the inlet nozzle or  
optional hose attachment properly attached to the  
machine. Never attempt to attach or change either  
attachment while the engine is running.  
4
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.  
NOTE: Not all safety labels shown may apply to your chipper shredder vacuum.  
SECTION 2: ASSEMBLING YOUR CHIPPER SHREDDER VACUUM  
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.  
Nozzle  
NOTE: Reference to right or left hand side of the  
chipper shredder vacuum is observed from the  
operating position.  
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 loose parts if 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.  
Bag  
Loose Parts In Carton (See Figure 1)  
Figure 1  
Nozzle  
Bag  
5
Attaching The Nozzle  
Bag Opening  
Bag  
Discharge  
Chute  
Remove three wing nuts from the front of the  
chipper shredder vacuum.  
Place nozzle in position over the three studs on unit  
and secure with wing nuts just removed.  
See Figure 2.  
Wing  
Wing  
Nuts  
Nut  
Nozzle  
Figure 3  
Place the four straps on the top of the bag over  
upper handle, hooking them on the studs to secure  
in place. Squeeze the clamp on the drawstring and  
pull the drawstring tight. Release the clamp.  
See Figure 4.  
Figure 2  
NOTE: The metal tab on the nozzle must depress the  
safety switch button attached to the front of chipper  
shredder vacuum or the engine will not start.  
Bag  
Straps  
Attaching The Bag  
Place bag under of upper handle assembly and slip  
the front opening on the bag over the discharge  
chute, making certain it is over the rim on the  
discharge chute. See Figure 3.  
Bag  
Straps  
Figure 4  
SECTION 3: KNOW YOUR CHIPPER SHREDDER VACUUM  
WARNING: Be familiar with all controls  
and their proper operation. Know how to  
stop the machine and disengage them  
quickly.  
Nozzle Door Adjustment Levers  
The nozzle adjustment levers are located on each side  
of the nozzle door. They are used to adjust the nozzle  
door for ground clearance that will provide the best  
performance for the operating conditions. See Figure 5.  
Bag  
Nozzle  
Collects shredded or chipped material fed through the  
chipper chute or vacuumed up through the nozzle.  
See Figure 5.  
Yard waste such as leaves and pine needles can be  
vacuumed up through the nozzle for shredding.  
See Figure 5.  
Chipper Chute  
Drive Clutch Control  
Allow twigs and small branches up to 2” in diameter to  
The drive clutch control is located on the upper handle  
assembly. Squeezing the drive clutch control against  
the upper handle engages the rear wheels. Release the  
drive clutch control to slow down or stop the wheel  
drive. See Figure 5.  
be fed into the impeller for chipping. See Figure 5.  
Caster Locks  
The caster locks are located on top of each front caster  
wheel. Refer to the Adjustment Section to position  
wheel locks. See Figure 5.  
Throttle Control Lever (Not Shown)  
The throttle control lever is located on the engine. It  
controls the engine’s speed and stops the engine. See  
separate engine manual packed with unit for details.  
6
Starter Handle (Not Shown)  
Engine Controls  
The starter handle is located on the engine. Pull the  
See the separate engine manual for the location and  
starter handle to start engine.  
function of the controls on the engine.  
Drive Clutch  
Control  
Bag  
Nozzle  
Nozzle Door  
Adjustment Lever  
Chipper  
Chute  
Caster Lock  
Figure 5  
SECTION 4: OPERATING YOUR CHIPPER SHREDDER VACUUM  
WARNING: Read, understand, and follow  
all instructions and warnings on the  
machine and in this manual before  
operating.  
Starting Engine  
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.  
Always wear the safety glasses provided  
with this machine during operation or  
while performing any adjustments or  
repairs. Thrown objects which ricochet  
can cause serious injury to the eyes.  
Make certain drive clutch control is in the  
disengaged (released) position.  
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.  
The throttle control lever is located on the engine.  
Move engine throttle control lever to FAST or  
START position.  
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.  
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. Extinguish  
cigarettes, cigars, pipes, and other  
sources of ignition.  
Place one foot on the left rear wheel to prevent the  
unit from skidding while starting.  
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 at the start of the  
compression cycle. This noise should be expected until  
the impeller reaches full speed.  
NOTE: See your engine manual packed with your unit  
for more detailed instructions.  
7
Pull rope with a rapid, continuous, full arm stroke.  
Keep a firm grip on starter handle. Let rope rewind  
slowly.  
Repeat the previous steps until engine fires. When  
engine starts, move choke control (if equipped)  
gradually to RUN position.  
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. Materials such as stalks or heavy branches up to 2”  
in diameter may be fed into the chipper chute.See  
Figure 6.  
WARNING: Keep bystanders, helpers,  
pets, and children at least 75 feet from the  
machine before starting and while  
operating. Do not operate this machine  
unless the discharge chute and bag have  
been properly installed and secured to the  
machine.  
WARNING: Do not attempt to shred, chip,  
or vacuum any material larger than  
specified on the machine or in this  
manual. Personal injury or damage to the  
machine could result.  
Stopping Engine  
Move throttle control lever to STOP or OFF  
position.  
Disconnect spark plug wire from spark plug and  
ground against the engine.  
Chipper  
Chute  
To Empty Bag  
The bag is designed to be emptied without being  
removed from unit. Open the large zipper in the rear of  
the bag to empty the contents. If bag is removed for any  
reason, follow the instructions for attaching the bag in  
the ASSEMBLY section. Be certain the zipper is closed  
completely when operating the unit.  
To Engage Drive  
Figure 6  
To engage the wheel drive, hold the drive clutch control  
against the upper handle. Releasing the drive clutch  
control stops the rear wheels from driving. Release the  
drive clutch control to slow down when negotiating an  
obstacle, making a turn, or stopping. Engage control  
slowly to prevent the front wheels from lifting up.  
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  
MAINTAINING YOUR CHIPPER SHREDDER  
VACUUM. For best performance, it is also important to  
keep the chipper blade sharp.  
Using the Chipper Shredder Vacuum  
Tire Pressure (Pneumatic Tires Only)  
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 has been shredded by the  
blades on the impeller assembly, it will be discharged  
WARNING: Maximum tire pressure under  
any circumstance is 30 psi. Equal tire  
pressure should be maintained at all  
times.  
SECTION 5: ADJUSTING YOUR CHIPPER SHREDDER VACUUM  
WARNING: Do not at any time make any  
adjustments without first stopping engine,  
disconnecting spark plug wire, and  
grounding it against the engine.  
Front Caster Wheels  
This chipper shredder vacuum is equipped with front  
caster wheels. The casters can be locked in a straight  
ahead position or position to swivel freely. Lift and place  
pins in the larger holes for locked or straight ahead  
operation. Place pins in smaller holes to allow casters  
to rotate freely. Lock wheels in straight position when  
operating on slopes. See Figure 7.  
8
Drive Clutch Cable Adjustment  
Adjust the drive clutch control if the chipper shredder  
vacuum moves forward with the drive clutch control  
disengaged, if it does not self-propel with the drive  
clutch control engaged, or if drive belt is slipping (unit  
hesitates while engine maintains the same speed). Use  
the adjustment wheel located in the clutch control  
housing to tighten or loosen the clutch cable. In  
addition, the adjustment wheel may also be used to  
determine the position in which the drive clutch control  
is engaged. If it is more comfortable to have the drive  
engaged with the lever further away from the handle,  
tighten the clutch cable. See Figure 9.  
Smaller Hole  
(Rotate Freely)  
Larger Hole  
(Locked)  
Figure 7  
Nozzle Door Height Adjustment  
Tighten  
The nozzle adjustment levers are located on each side  
of the nozzle door. The nozzle door can be adjusted to  
any of five positions, ranging from 1/2” to 3” ground  
clearance that will provide the best performance for the  
operating conditions. Slide the height adjustment lever  
forward or backward for adjusting the nozzle door  
upwards or downwards. Height must be adjusted  
equally. In general, raise the nozzle to vacuum a thick  
layer of leaves and lower the nozzle for smooth  
surfaces. See Figure 8.  
Adjustment  
Wheel  
Loosen  
Figure 9  
Engine Adjustments  
Refer to the separate engine manual for engine  
adjustment instructions.  
Nozzle Door  
Adjustment  
Lever  
Figure 8  
SECTION 6: MAINTAINING YOUR CHIPPER SHREDDER VACUUM  
WARNING: Before performing any mainte-  
nance or repairs, stop the engine, wait  
until the machine comes to a complete  
stop, disconnect the spark plug wire and  
ground against the engine to prevent unin-  
tended starting.  
Lubrication (Refer to Figure 5)  
Wheels: Lubricate the rear wheels with light oil once a  
season.  
Nozzle Door Adjustment Levers: Lubricate each  
adjustment lever once a season with light oil.  
Front Caster Wheels: Grease fittings are located on  
the front caster wheels to provide easy lubrication of the  
swivel pins once a season.  
9
Customer Responsibilities  
MAINTENANCE  
SCHEDULE  
SERVICE  
DATES  
Lubricate Wheels  
Lubricate Adjustment Levers  
Lubricate Caster Wheels  
Check Chipper Blades  
Check Oil  
Change Oil  
Check Air Filter  
Clean Engine  
Check Spark Plug  
Clean the screen by scraping or washing with water  
and reinstall the screen.  
Maintenance  
Engine  
NOTE: Be certain to reassemble the flail screen with  
the curved side down.  
Refer to the separate engine manual for all engine  
maintenance instructions.  
Check engine oil level before each use as  
instructed in the separate engine manual packed  
with your unit. Read and follow instructions  
carefully.  
Clean air cleaner every 25 hours under normal  
conditions or once a season. Clean every few hours  
under extremely dusty conditions. To service the air  
cleaner, refer to the separate engine manual  
packed with your unit.  
Hex Bolt  
Flat Washer  
Hex Nut  
Discharge  
Chute  
The spark plug should be cleaned and the gap  
reset once a season. Check engine manual for  
correct plug type and gap specifications.  
Self-Tapping  
Screws  
Removing The Flail Screen  
If the discharge area becomes clogged, remove the flail  
screen and clean area as follows:  
Flail Screen  
Hex Bolts  
Hex Nuts  
Stop the engine and make certain the chipper  
shredder vacuum has come to a complete stop.  
Disconnect spark plug wire from spark plug and  
ground against the engine.  
Remove the vacuum bag from the unit.  
Remove the four self-tapping screws from the  
bottom of the discharge chute, and the hex bolt, flat  
washer and hex nut from the top. Remove the  
discharge chute assembly. See Figure 10.  
Remove the two hex bolts and hex nuts which  
extend through the impeller housing. Lift the flail  
screen from the inside the housing. See Figure 10.  
Figure 10  
Reattach the discharge chute assembly with the  
hardware previously removed and connect the bag  
to unit.  
10  
Drain the gasoline and oil from the chipper  
shredder vacuum.  
Remove the three wing nuts that secure the nozzle  
to the outer housing and remove the nozzle. Refer  
to Figure 2.  
Remove the vacuum bag from the unit.  
Remove the discharge chute as instructed in the  
previous section Removing The Flail Screen.  
Remove the plastic belt cover on the front of the  
engine by removing two self-tapping screws. Refer  
to Figure 11.  
Sharpening Or Replacing Chipper Blades  
NOTE: When tipping the unit, empty the fuel tank and  
keep spark plug side up.  
Disconnect the spark plug wire and ground it  
against the engine.  
Remove the flail screen as instructed in the  
previous section.  
Remove the plastic belt cover on the front of the  
engine by removing the two self-tapping screws.  
See Figure 11.  
Tip the unit backward so that it rests on the  
handles.  
Remove the lower belt guard by removing the two  
self-tapping screws. See Figure 12.  
Remove the access plate by removing two hex lock  
nuts. See Figure 11.  
Locate one of the chipper blades in the access  
opening by rotating the impeller assembly by hand.  
Remove the chipper blade using a 3/16” allen  
wrench and a 1/2” wrench.  
Safety  
Switch  
Remove other blade in the same manner to replace  
or sharpen.  
Self-Tapping  
Screw  
Access Plate  
Lower  
Belt Guard  
Self-Tapping  
Screws  
Hex  
Lock Nuts  
Self-Tapping  
Screws  
Figure 12  
Remove the safety switch from the front of the outer  
housing by removing the two self-tapping screws.  
See Figure 12.  
Remove the two hex bolts and hex lock nuts which  
extend through the housing. Lift the flail screen out  
of the housing. Refer to Figure 10.  
Remove the outer housing and housing blades by  
removing the fourteen self-tapping screws.  
Remove the hex bolt, lock washer, and flat washer  
that secures the impeller assembly to the  
crankshaft. See Figure 13.  
Belt  
Cover  
Figure 11  
WARNING: Use caution when replacing  
the blades, wear heavy gloves to avoid a  
contact injury with the weld bolts or the  
housing while loosening or tightening the  
blades.  
When sharpening blades, follow the original angle  
of grind. Also, make sure to remove an equal  
amount from each blade and torque hardware 250 -  
300 in. lbs.  
Hex Bolt  
Lock Washer  
Flat Washer  
Impeller  
Assembly  
NOTE: Make certain blades are reassembled with the  
sharp edge facing upward.  
Belt Removal And Replacement  
NOTE: Because the engine on this has a tapered  
crankshaft, a special impeller removal tool (part number  
753-0638) is required to remove impeller assembly.  
Contact your local service dealer.  
Disconnect the spark plug wire and ground it away  
from the spark plug.  
Figure 13  
11  
Thread the special impeller tool into the crankshaft.  
Stop when the impeller assembly can move on the  
crankshaft.  
If the old belt is still on the unit, cut belt to remove  
from unit.  
Remove the impeller assembly from the crankshaft  
and unthread the special impeller tool from the  
impeller assembly.  
Remove the inner housing and mounting adapter  
by removing the five hex bolts and two hex nuts.  
See Figure 14.  
Place the mounting adapter against the engine and  
make sure the hole in the mounting adapter is  
facing up.  
Place the inner housing against mounting adapter  
and frame. Secure with the five hex bolts and two  
hex nuts previously removed. Refer to Figure 14.  
Slide the impeller assembly onto the crankshaft  
and place a screwdriver under the belt. Turn the  
impeller assembly counterclockwise to seat the belt  
into the slot on the impeller. Make sure the belt is  
routed inside all belt guards.  
Secure the impeller assembly to the crankshaft  
using the hex bolt, lock washer, and flat washer  
previously removed. Torque the bolt to 550 in. lbs.  
to 700 in. lbs.  
Place the housing blades against the inner  
housing. See Figure 16.  
Hex Bolts  
Inner  
Housing  
Hex Bolts  
Figure 14  
Insert the new belt between the frame and  
transmission pulley. It may be necessary to use a  
screwdriver to pry the frame away from the pulley in  
order to insert the belt. Being careful not to damage  
the pulley, apply a slight upward pressure and  
place belt around transmission pulley.  
Housing  
Blades  
Figure 16  
Place the outer housing against the inner housing.  
Insert two screwdrivers into the holes to hold the  
blades in place while attaching the outer housing.  
See Figure 17.  
Secure with the fourteen self tapping screws that  
were previously removed and insert all screws first  
before tightening.  
See Figure 15.  
Belt Guard  
Spring  
Mounting  
Adapter  
Reassemble following the previous steps in reverse  
order.  
Idler  
Bracket  
Idler  
Outer  
Housing  
Frame  
Transmission Pulley  
Figure 15  
Press down on the belt guard spring by the idler  
pulley and release spring from the slot on the idler  
bracket. Place the belt on the idler pulley and place  
belt guard spring back into the slot on the idler  
bracket. See Figure 15.  
Holes for  
Screwdrivers  
Figure 17  
12  
WARNING: Never store the machine or  
fuel container indoors where there is an  
open flame, spark, or pilot light such as on  
a water heater, furnace, clothes dryer, or  
other gas appliance.  
Storing Your Chipper Shredder Vacuum  
Clean the equipment thoroughly.  
Wipe equipment with an oiled rag to prevent rust.  
Refer to engine manual for correct engine storage  
instructions  
Store unit in a clean, dry area. Do not store next to  
corrosive materials such as fertilizer.  
SECTION 7: TROUBLESHOOTING  
Problem  
Cause  
Remedy  
Engine fails to start  
1. Spark plug wire disconnected.  
2. Fuel tank empty or stale fuel.  
1. Connect wire to spark plug.  
2. Fill tank with clean, fresh gasoline.  
3. Throttle control lever not in correct 3. Move throttle lever to FAST position.  
starting position.  
4. Choke not in CHOKE position  
(If Equipped).  
4. Move choke to CHOKE position.  
5. Engine (if equipped with a primer)  
not primed properly.  
5. Prime engine.  
6. Blocked fuel line.  
6. Clean fuel line.  
7. Faulty spark plug.  
7. Clean, adjust gap, or replace.  
Engine runs erratic  
1. Spark plug wire loose.  
2. Unit running on CHOKE  
(If Equipped).  
1. Connect and tighten spark plug wire.  
2. Move choke lever to OFF position.  
3. Blocked fuel line or stale fuel.  
3. Clean fuel line; fill tank with clean, fresh  
gasoline.  
4. Water or dirt in fuel system.  
5. Dirty air cleaner.  
6. Carburetor out of adjustment.  
4. Drain fuel tank. Refill with fresh fuel.  
5. Clean or replace air cleaner.  
6. See authorized service dealer.  
Too much vibration  
Engine overheats  
1. Loose parts or damaged impeller.  
1. See authorized service dealer.  
1. Engine oil level low.  
2. Dirty air cleaner.  
3. Carburetor not adjusted properly.  
1. Fill crankcase with proper oil.  
2. Clean or replace air cleaner.  
3. See authorized service dealer.  
Occasionalskip (hesitates) 1. Spark plug gap too close.  
at high speed  
1. Adjust gap to.030”.  
Unit does not discharge  
1. Discharge chute clogged.  
1. Stop engine immediately and  
disconnect spark plug wire. Clean flail  
screen and inside of discharge opening.  
2. Stop engine and disconnect spark plug  
wire. Remove lodged object.  
2. Foreign object lodged in impeller.  
3. Low engine RPM.  
4. Vacuum bag is full.  
3. Always run engine at full throttle.  
4. Empty bag.  
Rate of discharge slows  
considerably or  
composition of discharged  
material changes  
1. Low engine RPM.  
2. Chipper blade dull.  
1. Always run engine at full throttle.  
2. Replace chipper blade or see your  
authorized service dealer.  
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.  
13  
SECTION 8: PARTS LIST FOR MODEL 203  
1
4
2
3
2
3
5
9
10  
8
6
7
11  
13  
12  
15  
9
14  
10  
8
14  
16  
13  
REF.  
NO.  
1
2
3
4
5
6
7
PART  
NO.  
REF.  
NO.  
9
10 732-0754  
11 781-0702  
12 781-0703  
13 738-0913  
14 736-3084  
15 712-0431  
16 631-0047  
PART  
NO.  
720-0190  
DESCRIPTION  
Chipper Chute  
Hex Nut 5/16-18  
Bell Washer.340 ID x.872 OD  
Discharge Chute  
Bag  
Nozzle Assembly  
Nozzle Flap  
DESCRIPTION  
Height Adjustment Knob  
Spring Lever  
Index Bracket RH  
Index Bracket LH  
681-0095  
712-3010  
736-0242  
731-1690A  
764-04001  
631-0069  
731-1831  
710-0969  
Shoulder Screw  
Flat Washer.510 x 1.120 x.060  
Hex Flange Lock Nut 3/8-16  
Door Assembly  
8
Screw  
14  
Model 203  
1
2
3
4
7
2
6
13  
14  
3
15  
13  
18  
14  
16  
5
17  
38  
10  
8
25  
6
11  
9
26  
12  
22  
5
3
2
15  
17  
14  
31  
19  
30  
23  
36  
24  
30  
27  
36  
34  
35  
28  
29  
32  
33  
Ref.  
No.  
Ref.  
No.  
Part No.  
Part Description  
Part No.  
Part Description  
1.  
2.  
681-0108  
719-0329  
715-0166  
681-0107  
711-0833B  
736-0119  
710-1054  
781-0490  
712-0411  
736-0247  
736-0217  
710-1273  
723-0438  
710-0604A  
712-0384  
781-0627  
712-3004A  
681-0098  
Impeller Assembly Complete  
Flail Blade  
19.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
781-0599  
710-0772  
781-0653  
710-3008  
719-0326  
681-0060  
629-0241A  
710-0896  
726-0272  
710-0382  
712-0421  
725-3166  
731-1613  
710-1268  
725-1700  
710-1260A  
723-0400  
781-0735  
Upper Shredder Blade  
Hex Cap Screw 5/16-18 x 2  
Flail Housing Blade  
Hex Cap Screw 5/16-18 x.75  
Discharge Screen  
3.  
Spiral Pin  
4.  
Impeller Assembly  
Clevis Pin  
5.  
6.  
Lock Washer 5/16  
Cap Screw 5/16-24 x 1.0  
Chipper Blade  
Outer Flail Housing Assembly  
Wire Harness  
7.  
8.  
Hex Washer Screw 1/4-14 x.625  
Clamp  
9.  
Hex Lock Nut 5/16-24  
Flat Washer.406 x 1/1/4  
Lock Washer 3/8  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
Hex Cap Screw 1/2-13 x 5.0  
Knob 5/16-18  
Hex Cap Screw 3/8-24 x 2.75  
Rubber Seal  
Switch  
Safety Switch Mounting Cover  
Hex Washer Screw  
Switch Cover  
Hex Washer Screw 5/16-18  
Hex Lock Nut 1/2-13  
Chipper Blade Cover  
Screw 5/16-18 x.750  
Safety Glasses (Not Shown)  
Retaining Pin Clip  
Hex Flange Lock Nut 5/16-18  
Inner Flail Housing Assembly  
15  
Model 203  
9
11  
2
5
6
4
10  
6
5
1
13  
17  
8
3
7
4
16  
15  
8
56  
17  
14  
12  
18  
19  
44  
49  
30  
24  
27  
27  
29  
25  
40 34  
45  
51  
35  
36  
55  
33  
32  
48  
23  
42  
37  
41  
38  
22  
28  
26  
54  
52  
50  
39  
21  
57  
31  
47  
43  
53  
50  
46  
16  
Model 203  
Ref.  
No.  
Ref.  
No.  
Part No.  
Part Description  
Chain Case LH  
Part No.  
Part Description  
Flange Bearing.566 ID  
1.  
2.  
781-0677  
781-0676  
754-0457  
748-0313  
741-0413  
736-0336  
713-0422  
710-0896  
710-0603  
618-0256  
611-0063  
10622B  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
45.  
46.  
47.  
48.  
49.  
50.  
51.  
52.  
53.  
54.  
55.  
56.  
57.  
741-0415  
719-0325  
748-0373  
719-0324A  
748-0208A  
710-0589  
717-1433  
721-0329  
736-0314  
736-0520  
741-0479  
756-0558  
741-0556  
710-0589  
710-1062  
712-0138  
712-3045  
732-0357A  
736-0270  
736-0329  
736-0425  
738-0440  
738-0826  
756-0656  
782-7569  
682-0054  
731-1825  
656-0008  
Chain Case RH  
Lower Housing  
3.  
V-Belt  
Flange Bearing.503 ID  
Upper Housing  
4.  
Spacer  
5.  
Hex Flange Bearing  
Flat Washer  
Flange Bearing.378 ID  
Hex Washer Screw #10-16 x.75  
Pinion Shaft 10T  
6.  
7.  
Chain  
8.  
Self Tapp. Screw 1/4-14 x.625  
Hex Washer Screw 5/16  
Chipper Shredder Trans. Assembly  
Axle Shaft Assembly  
Plastic Spring Ratchet  
Wheel Complete 10 x 4 x 4  
Hex Nut 1/4-20  
Oil Seal  
9.  
Thrust Washer.382 ID x.684 OD  
Flat Washer.504 ID x.70 OD  
Thrust Bearing.375 ID x.812 OD  
Idler Pulley  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
634-0243  
712-0456  
712-3027  
714-0104  
736-0366  
748-0188B  
748-0381  
748-0405  
618-0255  
16500A  
Needle Bearing.375 ID x.375 OD  
Hex Screw #10-16 x.75  
Hex Cap Screw 1/4-20 x 1.25  
Hex Nut 1/4-28  
Hex Flanged Lock Nut 1/4-20  
Cotter Pin  
Flat Washer 5/8 ID x 1.0 OD  
Pawl LH.345 ID  
Hex Jam Nut 5/16-24 LH Thd  
Extension Spring 1.12 Lg  
Bell Washer.265 ID x.75 OD  
Lock Washer 1/4  
Pawl RH.345 ID (Not Shown)  
Wheel Ratchet 1.62 OD x.5 serr  
6T Shredder Transmission Assy.  
Hex Bearing Cup  
19.  
21.  
22.  
23.  
24.  
25.  
26.  
27.  
28.  
29.  
Bell Washer.325 ID x.930 OD  
Shoulder Spacer.375 ID x.165 OD  
Shoulder Bolt 1/4-28 x.375  
Flat Pulley 5.06 Dia  
711-1118  
717-1432  
721-0213  
736-0187  
736-0336  
741-0413  
741-0414  
6T Sprocket Output Shaft  
Helical 34T Gear  
Oil Seal  
Belt Keeper  
Flat Washer.64 ID x 1.24 OD  
Flat Washer 5/8 x 1.0  
Hex Flange Bearing.631 ID  
Flange Bearing.629 ID  
Idler Bracket Assembly  
Hub Cap  
Idler Pulley Assembly w/Bearing  
IMPORTANT: For a proper  
working machine, use Factory  
Approved Parts.  
V-BELTS are especially designed  
to engage and disengage safely.  
A substitute (non OEM) V-Belt can  
be dangerous by not disengaging  
completely.  
17  
Model 203  
5
1
6
2
4
3
7
8
9
3
20  
11  
12  
10  
8
2
22  
26  
13  
13  
15  
21  
17  
14  
13  
12  
19  
26  
18  
12  
18  
29  
26  
12  
13  
28  
30  
14  
27  
26  
12  
18  
31  
30  
32  
34  
36  
37  
35  
13  
29  
38  
29  
34  
32  
36  
35  
13  
39  
40  
33  
37  
38  
20  
41  
38  
37  
42  
44  
43  
39  
40  
45  
47  
29  
38  
37  
46  
44  
48  
46  
45  
47  
48  
18  
Model 203  
Ref.  
No.  
Ref.  
No.  
Part No.  
Part Description  
Upper Handle  
Part No.  
Part Description  
Lower Handle  
1.  
2.  
749-1095  
1539-019  
711-0737  
746-0714  
731-1735  
731-0620  
731-1736  
710-0841  
731-1059  
710-1331  
710-0805  
736-0451  
712-3004A  
725-0157  
712-0380  
781-0647  
710-3008  
747-0815  
710-0896  
731-1646  
719-0359  
710-3103  
27.  
28.  
29.  
30.  
31.  
32.  
33.  
34.  
35.  
36.  
37.  
38.  
39.  
40.  
41.  
42.  
43.  
44.  
45.  
46.  
47.  
48.  
749-1094  
710-0502A  
710-0604A  
741-0413  
681-0097A  
781-0700  
781-0697  
747-0924  
732-0306  
726-0214  
736-0366  
741-0487A  
736-0264  
714-0104  
681-0087  
737-3000  
736-0931  
681-0088  
710-0521  
712-0431  
750-1042  
734-1804A  
Push Nut  
Screw 3/8-16 x 1.25  
Hex Washer Screw 5/16-18 x.625  
Hex Flange Bearing.631 x.720  
Frame Assembly  
3.  
Stud Pin.250 x 1.75  
Clutch Cable 56"  
4.  
5.  
Upper Clutch Cover  
Drive Lever  
6.  
Axle Bracket  
7.  
Lower Clutch Cover  
Screw #10-12 x.750  
Cable Mounting Cap  
Screw #10-16 x 1.25  
Hex Cap Screw 5/16-18 x 1.50  
Shoulder Washer.320 ID x.93 OD  
Hex Flange Lock Nut 5/16-18  
Cable Tie  
Transmission Cover  
Lock Pin  
8.  
9.  
Compression Spring  
Push Cap  
10.  
11.  
12.  
13.  
14.  
15.  
17.  
18.  
19.  
20.  
21.  
22.  
26.  
Flat Washer 5/8 ID x 1.0 OD  
Flange Bearing.632 ID  
Flat Washer.330 ID x.630 OD  
Cotter Pin  
Hex Nut 1/4-28  
Bracket Assembly  
Discharge Chute Bracket  
Hex Cap Screw 5/16-18 x.75  
Eye Bolt  
Grease Fitting 3/16  
Flat Washer.203 ID x.403 OD  
Bracket Assembly  
Self Tapp. Screw 1/4-14 x.625  
Belt Cover  
Hex Cap Screw 3/8-16 x 3.0  
Flange Lock Nut 3/8-16  
Spacer  
Engine Mounting Adapter  
Hex Cap Screw 5/16-18 x 1.75  
Wheel 6.0 x 2.0  
NOTE: For painted 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  
19  
MANUFACTURER’S LIMITED WARRANTY FOR:  
The limited warranty set forth below is given by MTD LLC with  
respect to new merchandise purchased and used in the  
United States, its possessions and territories.  
e.  
MTD does not extend any warranty for products sold or  
exported outside of the United States, its possessions  
and territories, except those sold through MTD’s  
authorized channels of export distribution.  
Replacement parts that are not genuine MTD parts.  
Transportation charges and service calls.  
“MTD” warrants this product against defects in material and  
workmanship for a period of two (2) years commencing on the  
date of original purchase and will, at its option, repair or  
replace, free of charge, any part found to be defective in  
materials or workmanship. This limited warranty shall only  
apply if this product has been operated and maintained in  
accordance with the Operator’s Manual furnished with the  
product, and has not been subject to misuse, abuse,  
commercial use, neglect, accident, improper maintenance,  
alteration, vandalism, theft, fire, water, or damage because of  
other peril or natural disaster. Damage resulting from the  
installation or use of any part, accessory or attachment not  
approved by MTD for use with the product(s) covered by this  
manual will void your warranty as to any resulting damage.  
f.  
g.  
No implied warranty, including any implied warranty of  
merchantability of fitness for a particular purpose,  
applies after the applicable period of express written  
warranty above as to the parts as identified. No other  
express warranty, whether written or oral, except as  
mentioned above, given by any person or entity,  
including a dealer or retailer, with respect to any product,  
shall bind MTD. During the period of the warranty, the  
exclusive remedy is repair or replacement of the product  
as set forth above.  
The provisions as set forth in this warranty provide the  
sole and exclusive remedy arising from the sale. MTD  
shall not be liable for incidental or consequential loss or  
damage including, without limitation, expenses incurred  
for substitute or replacement lawn care services or for  
rental expenses to temporarily replace a warranted  
product.  
Normal wear parts are warranted to be free from defects in  
material and workmanship for a period of thirty (30) days from  
the date of purchase. Normal wear parts include, but not  
limited to items such as: batteries, belts, blades, blade  
adapters, grass bags, rider deck wheels, seats, snow thrower  
skid shoes, shave plates, auger spiral rubber and tires.  
HOW TO OBTAIN SERVICE: Warranty service is available,  
WITH PROOF OF PURCHASE, through your local authorized  
service dealer. To locate the dealer in your area, check your  
Yellow Pages, or contact MTD LLC at P.O. Box 361131,  
Cleveland, Ohio 44136-0019, or call 1-800-800-7310 or log  
Some states do not allow the exclusion or limitation of  
incidental or consequential damages, or limitations on how  
long an implied warranty lasts, so the above exclusions or  
limitations may not apply to you.  
In no event shall recovery of any kind be greater than the  
amount of the purchase price of the product sold. Alteration  
of safety features of the product shall void this warranty.  
You assume the risk and liability for loss, damage, or injury to  
you and your property and/or to others and their property  
arising out of the misuse or inability to use the product.  
This limited warranty does not provide coverage in the  
following cases:  
a.  
The engine or component parts thereof. These items  
may carry a separate manufacturer’s warranty. Refer  
to applicable manufacturer’s warranty for terms and  
conditions.  
This limited warranty shall not extend to anyone other than the  
original purchaser or to the person for whom it was purchased  
as a gift.  
b.  
c.  
Log splitter pumps, valves, and cylinders have a  
separate one year warranty.  
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.  
Routine maintenance items such as lubricants, filters,  
blade sharpening, tune-ups, brake adjustments, clutch  
adjustments, deck adjustments, and normal  
deterioration of the exterior finish due to use or  
exposure.  
IMPORTANT: Owner must present Original Proof of  
Purchase to obtain warranty coverage.  
d.  
Service completed by someone other than an  
authorized service dealer.  
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-800-800-7310  

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