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  9. MTD 11A-503F800 User manual

MTD 11A-503F800 User manual

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Operator's Manual
22" Rotary Mower
Model 503
IMPORTANT: Read safety rules and instructions carefully before operating equipment.
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,
ForUSCustomers:MTD LLC, P.O.BOX361131,CLEVELAND,OHIO44136-0019
ForCanadian Customers: MTDProducts Ltd., P. O.BOX1386, KITCHENER,ONTARION2G4J1
PRINTED IN U.S.A. FORM NO. 769-01441
(11/2004)
TABLEOFCONTENTS
Content Page
Customer Support 2
Important Safe Operation Practices 3
Slope Gauge 5
Setting Up 6
Operating Your Lawn Mower 8
Content Page
Adjustments 10
Maintenance 11
Troubleshooting 13
Parts List 14
Warranty 16
FINDINGMODELNUMBER
This Operator's Manual is an important part of your new equipment. It will help you assemble, prepare and maintain the unit for
best performance. Please read and understand what it says.
Before you start assembling your new equipment, please locate the model plate on the equipment and copy the
information from it in the space provided below. A sample model plate is also given below. You can locate the model
plate by standing at the operating position and looking down at the rear of the deck. This information will be
necessary to use the manufacturer's web site and/or help from the Customer Support Department or an authorized
service dealer.
Model Number Serial Number
Num#ro de module Num#ro de s#rier
XXXXXXXXXXX XXXXXXXXXXX
MTD LLC
CLEVELAND, OH 44136
MTD PRODUCTS LIMITED
KITCHENER, ON N2G 4J1
USA-www.mtdproducts.com 1-800-800-7310
CAN-www.mtdcanada.com 1-800-668-1238
Copy the model number here:
Copy the serial number here:
ENGINEINFORMATION
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.
CALLINGCUSTOMERSUPPORT
Please doNOTreturnthe unittothe retailer fromwhichit waspurchased,withoutfirstcontactingCustomerSupport.
Ifyou have difficulty assembling this product or have any questions regarding the controls, operation or maintenance
of this unit, please call a Customer Support Representative.
For US Customers: 1- (330) 220-4MTD (4683) or 1- (800)-800-7310
For Canadian Customers: 1-800-668-1238
Please have your unit's model number and serial number ready when you call. See previous section to locate this information.
You will be asked to enter the serial number in order to process your call.
HOWTOOBTAINSERVICE
Warranty service is available, WITH PROOF OF PURCHASE, through your local authorized service dealer. To
locate the dealer in your area;
In the U.S.A.: Check your Yellow Pages, or contact MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, or
call 1-800-800-7310 or 1-330-220-4683 or log on to our Web site at www.mtdproducts.com.
In Canada: Contact MTD Products Limited, Kitchener, ON N2G 4J1, or call 1-800-668-1238 or log on to our Web
site at www.mtdcanada.com.
SECTION1: IMPORTANTSAFEOPERATIONPRACTICES
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: 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.
GeneralOperation
1. 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 this machine before operating it. Keep this
manual in a safe place for future and regular reference and for
ordering replacement parts.
2. This machine is a precision piece of power equipment, not a
plaything. Therefore, exercise extreme caution at all times. Your
unit has been designed to perform one job: to mow grass. Do not
use it for any other purpose.
3. Never allow children under 14 years old to operate this machine.
Children 14 years old and over should read and understand the
instructions in this manual and should be trained and supervised
by a parent. Only responsible individuals who are familiar with
these rules of safe operation should be allowed to use this
machine.
4. Thoroughly inspect the area where the equipment is to be used.
Remove all stones, sticks, wire, bones, toys and other foreign
objects which could be tripped over or picked up and thrown by
the blade. Thrown objects can cause serious personal injury.
Plan your mowing pattern to avoid discharge of material toward
roads, sidewalks, bystanders and the like. Also, avoid
discharging material against a wall or obstruction which may
cause discharged material to ricochet back toward the operator.
5. To help avoid blade contact or a thrown object injury, stay in the
operator zone behind the handles and keep children,
bystanders, helpers and pets at least 75 feet from the mower
while it is in operation. Stop machine if anyone enters the area.
6. Always wear safety glasses or safety goggles during operation
and while performing an adjustment or repair to protect your
eyes. Thrown objects which ricochet can cause serious injury to
the eyes.
7. Wear sturdy, rough-soled work shoes and close-fitting slacks
and shirts. Shirts and pants that cover the arms and legs and
steel-toed shoes are recommended. Never operate this machine
in bare feet, sandals, slippery or light weight (e.g. canvas) shoes.
8. Do not put hands or feet near rotating parts or under the cutting
deck. Contact with the blade can amputate hands and feet.
9. A missing or damaged discharge cover can cause blade contact
or thrown object injuries.
10. Many injuries occur as a result of the mower being pulled over
the foot during a fall caused by slipping or tripping. Do not hold
on to the mower if you are falling; release the handle
immediately.
11. Never pull the mower back toward you while you are walking. If
you must back the mower away from a wall or obstruction first
look down and behind to avoid tripping and then follow these
steps:
a. Step back from the mower to fully extend your arms.
b. Be sure you are well balanced with sure footing.
c. Pull the mower back slowly, no more than half way
toward you.
d. Repeat these steps as needed.
12. Do not operate the mower while under the influence of alcohol
or drugs.
13. Do not engage the self-propelled mechanism on units so
equipped while starting engine.
14. The blade control handle is a safety device. Never attempt to
bypass its operation. Doing so makes the safety device
inoperative and may result in personal injury through contact
with the rotating blade. The blade control handle must operate
easily in both directions and automatically return to the
disengaged position when released.
15. Never operate the mower in wet grass. Always be sure of your
footing. A slip and fall can cause serious personal injury. If you
feel you are losing your footing, release the blade control handle
immediately and the blade will stop rotating within three
seconds.
16. Mow only in daylight or in good artificial light. Walk, never run.
Stop the blade when crossing gravel drives, walks or roads.
17. If the equipment should start to vibrate abnormally, stop the
engine and check immediately for the cause. Vibration is
generally a warning of trouble.
18. Shut the engine off and wait until the blade comes to a complete
stop before removing the grass catcher or unclogging the chute.
The cutting blade continues to rotate for a few seconds after the
engine is shut off. Never place any part of the body in the blade
area until you are sure the blade has stopped rotating.
19. Never operate mower without proper trail shield, discharge
cover, grass catcher, blade control handle or other safety
protective devices in place and working. Never operate mower
with damaged safety devices. Failure to do so, can result in
personal injury.
20. Muffler and engine become hot and can cause a burn. Do not
touch.
21. Only use parts and accessories made for this machine by the
manufacturer. Failure to do so can result in personal injury.
22. If situations occur which are not covered in this manual, use care
and good judgment. Call customer assistance for the name of
your nearest servicing dealer.
SlopeOperation
Slopes are a major factor related to slip and fall accidents which can
result in severe injury, Operation on slopes requires extra caution, If
you feel uneasy on a slope, do not mow it, For your safety, use the
slope gauge included as part of this manual to measure slopes before
operating this unit on a sloped or hilly area, If the slope is greater than
15 degrees, do not mow it,
Do:
1, Mow across the face of slopes; never up and down, Exercise
extreme caution when changing direction on slopes,
2, Watch for holes, ruts, rocks, hidden objects, or bumps which can
cause you to slip or trip, Tall grass can hide obstacles,
3, Always be sure of your footing, A slip and fall can cause serious
personal injury, If you feel you are losing your balance, release
the blade control handle immediately, and the blade will stop
rotating within 3 seconds,
DoNot:
1, Do not mow near drop-offs, ditches or embankments, you could
lose your footing or balance,
2. Do not mow slopes greater than 15 degrees as shown on the
slope gauge,
3. Do not mow on wet grass, Unstable footing could cause slipping,
Children
Tragic accidents can occur if the operator is not alert to the presence
of children. Children are often attracted to the mower and the mowing
activity. They do not understand the dangers. Never assume that
children will remain where you last saw them.
1. Keep children out of the mowing area and under the watchful
care of a responsible adult other than the operator.
2. Be alert and turn mower off if a child enters the area.
3. Before and while moving backwards, look behind and down for
small children.
4. Use extreme care when approaching blind corners, doorways,
shrubs, trees, or other objects that may obscure your vision of a
child who may run into the mower.
5. Keep children away from hot or running engines. They can suffer
burns from a hot muffler.
6. Never allow children under 14 years old to operate a power
mower. Children 14 years old and over should read and
understand the operation instructions and safety rules in this
manual and should be trained and supervised by a parent.
Service
SafeHandlingOfGasoline:
1, 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,
2, Wash your skin and change clothes immediately,
3, Use only an approved gasoline container,
4, Never fill containers inside a vehicle or on a truck or trailer bed
with a plastic liner, Always place containers on the ground away
from your vehicle before filling,
5, Remove gas-powered equipment from the truck or trailer and
refuel it on the ground, If this is not possible, then refuel such
equipment on a trailer with a portable container, rather than from
a gasoline dispenser nozzle,
6, Keep the nozzle in contact with the rim of the fuel tank or
container opening at all times until fueling is complete, Do not
use a nozzle lock-open device,
7, Extinguish all cigarettes, cigars, pipes and other sources of
ignition,
8, Never fuel machine indoors because flammable vapors will
accumulate in the area,
9, Never remove gas cap or add fuel while the engine is hot or
running, Allow engine to cool at least two minutes before
refueling,
10, Never over fill fuel tank, Fill tank to no more than 1/2inch below
bottom of filler neck to provide for fuel expansion,
11, Replace gasoline cap and tighten securely,
12, If gasoline is spilled, wipe it off the engine and equipment, Move
unit to another area, Wait 5 minutes before starting the engine,
13, Never store the machine or fuel container near an open flame,
spark or pilot light as on a water heater, space heater, furnace
,clothes dryer or other gas appliances.
14. To reduce fire hazard, keep mower free of grass, leaves, or other
debris build-up. Clean up oil or fuel spillage and remove any fuel
soaked debris.
15. Allow a mower to cool at least 5 minutes before storing.
GeneralService:
1, Never run an engine indoors or in a poorly ventilated area,
Engine exhaust contains carbon monoxide, an odorless and
deadly gas,
2, Before cleaning, repairing, or inspecting, make certain the blade
and all moving parts have stopped, Disconnect the spark plug
wire and ground against the engine to prevent unintended
starting,
3, Check the blade and engine mounting bolts at frequent intervals
for proper tightness, Also, visually inspect blade for damage
(e,g,, bent, cracked, worn) Replace blade with the original
equipment manufacture's (O,E,M,) blade only, listed in this
manual, "Use of parts which do not meet the original equipment
specifications may lead to improper performance and
compromise safety!"
4, Mower blades are sharp and can cut, Wrap the blade or wear
gloves, and use extra caution when servicing them,
5, Keep all nuts, bolts, and screws tight to be sure the equipment is
in safe working condition,
6, Never tamper with safety devices, Check their proper operation
regularly,
7, After striking a foreign object, stop the engine, disconnect the
spark plug wire and ground against the engine, Thoroughly
inspect the mower for any damage, Repair the damage before
starting and operating the mower,
8, Never attempt to make a wheel or cutting height adjustment
while the engine is running,
9, Grass catcher components, discharge cover, and trail shield are
subject to wear and damage which could expose moving parts or
allow objects to be thrown, For safety protection, frequently
check components and replace immediately with original
equipment manufacturer's (O,E,M,) parts only, listed in this
manual, "Use of parts which do not meet the original equipment
specifications may lead to improper performance and
compromise safety!"
10, Do not change the engine governor setting or overspeed the
engine, The governor controls the maximum safe operating
speed of the engine,
11, Maintain or replace safety labels, as necessary,
12, Observe proper disposal laws and regulations, Improper
disposal of fluids and materials can harm the environment,
YourResponsibility
• 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.
1.1.1
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|,ql SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE
!
A POWER POLE
A CORNER OFA BUILDING
I
15°
DANGER
Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). A riding mower could
overturn and cause serious injury. If operating a walk-behind mower on such a slope, it is extremely difficult to maintain your footing
and you could slip, resulting in serious injury.
Operate RIDING mowers up and down slopes, never across the face of slopes.
Operate WALK-BEHIND mowers across the face of slopes, never up and down slopes.
SECTION3: SETTINGUP
IMPORTANT:This unit is shipped without gasoline
or oil in the engine. Fill up gasoline and oil as
instructed in the accompanying engine manual
before operating your mower.
SparkPlugWire
1. Disconnect spark plug wire from the spark
plug, and ground it against the engine.
2. If engine is equipped with a rubber boot, attach
rubber boot to a bolt on the engine to ground.
See Figure 1.
o
k
Plug
Wire
Fig
Spark Plug
ire_
Spark Plug
ire I
ShippingBlock
The chute deflector on your mower may be held in
an upright position by a block for shipping
purposes only. This shipping block must be
removed and discarded before the mower is put
into operation. See Figure 2.
1. To remove the shipping block, pull the spring-
loaded chute toward the engine. Remove the
block and carefully lower the chute into
operating position, keeping fingers out of the
way.
Upper& LowerHandles
1. Pull up and back on the upper handle to raise
the handle into the operating position. Make
certain the lower handle is seated securely into
the handle mounting brackets. See Figure 3.
2. Tighten wing nuts A on each side of the
handle. See Figure 4.
NOTE: Your mower is shipped with the handle in
the higher position. If you wish to lower the height
of the handle refer to the Adjustment Section.
3. Tighten wing nuts C and D at the end of the
lower handle to secure the handle to the handle
mounting brackets.
4. Fasten the cable to the left lower handle with
the cable tie. Pull the cable tie tight and trim off
the excess. See Figure 5.
Wing
Nuts A
Wing
Nuts C & D
Handle
Bracket
Assembly
Shipping
Block
Figure 2
Figure 3
Handle
Figure 4
StarterRope
1. The starter rope is attached to the engine. Additional rope
may be wound around the starter handle. If so, unwind the
rope from the handle.
2. With the spark plug wire disconnected and grounded,
depress the blade control handle and pull the rope out of
the engine.
3. Place the rope guide around the starter handle, so the
opening in the rope guide is toward the front of the mower.
Insert the rope guide into the right side of the handle, and
secure with hex Iocknut. See Figure 5.
Starter _
Handle
Rope
Guide
Starter_
Rope
NOTE: If the starter rope becomes disconnected from rope
guide on handle, disconnect and ground the spark plug
wire. Depress the blade control handle and pull the starter
rope out from engine slowly. Slip the starter rope into the rope guide bolt on handle.
MulchingBaffle
If your mower is equipped with a mulching baffle,
install it on the right side of the deck. Follow the
sequence indicated here.
1. Lift up and hold the side-discharge chute
deflector.
2. Insert bottom lip of the mulching baffle inside
the chute opening (marked 1 in Figure 6).
3. Snap hooks of the mulching baffle over the
hinge pin of the chute deflector (marked 2 in
Figure 6). The hooks must snap into place on
the hinge pin, locking the mulching baffle firmly
onto the mower. Release the chute deflector.
NOTE: For proper assembly, install bottom lip
inside chute opening before placing hooks over
the hinge pin.
Chute
Mulching
Baffle
InstallingFrontWheels
• Place the front of the mower deck on raised blocks.
• Remove lock nut from pivot arm assembly, slide wheel
onto pivot arm assembly and secure with lock nut. See
Figure 7.
• Assemble the other side in the same manner.
• If your mower is equipped with hub caps, place hub
caps in position against the inner hub of wheel. Press
firmly around the center portion of the hub cap in a
circular motion. The hub caps are flexible and they will
snap over the wheel hubs. Lock Nut
Rex
Lock
Figure 5
/
Cable
Tie
Opening
\Lip of Mulching Baffle
(insert inside chute opening)
Figure 6
Arm
Assembly
)_Hub Cap (If Equipped)
Figure 7
IlnstallingRearWheels
• Place the rear of the mower deck on raised blocks.
• Remove lock nut from pivot arm assembly, slide
wheel, with hollow side in, onto axle and secure with
lock nut. See Figure 8.
• Assemble the other side in the same manner Lock
out\ Figure 8
SECTION4: OPERATINGYOURLAWNMOWER
Knowyourlawnmower
BladeControl Handle
The blade control handle is located on the upper handle of
the mower. See Figure 9. The blade control handle must
be depressed in order to operate the unit. Release the
blade control handle to stop the engine and blade.
_ WARNING: This blade control
mechanism is a safety device. Never
attempt to bypass its operation.
CuttingHeightAdjustmentLevers
One adjustment lever is located on each wheel and is used
to adjust the cutting height. All four levers have to be at the
same relative position to ensure uniform cut.
RecoilStarter
The recoil starter isattached to the right upper handle.
Stand behind the unit and pull the recoil starter rope to
start the unit.
MulchingBaffle
The mulching baffle is used to recirculate grass clippings
back to the lawn. Attach it as instructed on page 7 of this
manual.
Starter
Discharge
Chute
Blade Control
Handle
Mulching _
Baffle
Cutting Height
Adjustment
Figure 9
BeforeStarting
• Service the engine with gasoline and oil as instructed inthe separate engine manual. Read instructions
carefully.
_ARNING: Use extreme care when handling gasoline. Gasoline is extremely flammable and the vaporsare explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes,
cigars, pipes and other sources of ignition.
• Attach spark plug wire to spark plug. If unit is equipped with a rubber boot over the end of the spark plug wire,
make certain the metal loop on the end of the spark plug wire (inside the rubber boot) is fastened securely over
the metal tip on the spark plug.
_ ARNING: The operation of any lawn mower can result in foreign objects being thrown into the eyes,which can damage your eyes severely. Always wear safety glasses while operating the mower, or while
performing any adjustments or repairs on it.
WARNING: Be sure no one other than the operator is standing near the lawn mower while starting
engine or operating mower. Never run engine indoors or in enclosed, poorly ventilated areas. Engine
exhaust contains carbon monoxide, an odorless and deadly gas. Keep hands, feet, hair and loose clothing
away from any moving parts on engine and lawn mower.
StartingEngine
• If your unit is equipped with a primer, prime
engine as instructed in the separate engine
manual packed with your unit.
• Standing behind the unit, depress the blade
control handle and hold it against the upper
handle as shown in Figure 10.
• Grasp the recoil starter handle as shown and
pull slowly until resistance is felt, then pull
rapidly to start engine and avoid kickback.
Return it slowly to the rope guide bolt.
NOTE: The blade control handle must be
depressed in order to operate the unit. Release
the blade control handle to stop the engine and
blade.
Starter
Handle
Handle
,Jl
Figure 10
_ ARNING: THIS CONTROL MECHANISM IS A SAFETY DEVICE. NEVER ATTEMPT TO BYPASS
ITS OPERATION.
StoppingEngine
1. Release blade control handle to stop the engine and the blade.
2. Disconnect spark plug wire from spark plug and ground against the engine.
UsingYourLawnMower
IMPORTANT:Be sure the lawn is clear of stones, sticks, wire, or other objects which could damage the lawn mower
or the engine. Such objects could be accidently thrown by the mower in any direction and cause serious personal
injury to the operator and others.
_ ARNING: If you strike aforeign object, stop the engine. Remove wire from the spark plug, thoroughlyinspect the mower for any damage, and repair the damage before restarting and operating the mower.
Extensive vibration of the mower during operation is an indication of damage. The unit should be promptly
inspected and repaired.
OperatingTips
• For best results, do not cut wet grass.
• New grass, thick grass, or wet grass may require a narrower cut.
• For a healthier lawn, never cut off more than one-third of the total length of the grass.
• Your lawn should be cut in the fall as long as there is growth.
• For effective mulching, do not cut wet grass.
• Adjust ground speed according to the condition of the lawn.
• If the grass has been allowed to grow in excess of 4 inches, mulching is not recommended.
Mow using the side discharge to reduce the grass height to 3-1/4 inches or less before
mulching.
SECTION5: MAKINGADJUSTMENTS
_ ARNING: Always stop engine, disconnect spark plug, and ground against engine before performingadjustments.
CuttingHeight
Each wheel has a height adjustment lever to
change the cutting height of the mower.
1. To change the height of cut, squeeze adjuster
lever toward the wheel, moving up or down to
selected height.
NOTE: All wheels must be in the same height of
cut.
Height Adjustment
Figure 11
HandleHeight
To lower the handle height, proceed as follows:
1.
2. Remove the starter rope from the rope guide.
Remove the hardware securing the lower
handle to handle brackets and remove the
lower handle being careful not to bend or kink
the cables.
3. Reassemble placing the top holes in the
handle over the weld pins in the handle
mounting brackets.
4. Secure with hardware previously removed.
5. Reassemble the upper handle to the lower
handle.
6. Attach the starter rope and rope guide as
instructed in the "Set-up" instructions.
7.
Wing
Lower
_///Handle
Handle
Bracket
Figure 12
Remember to attach the spark plug wire after completing the adjustments and before operating your mower.
10