Yard-Man 556 Operator's Manual

Operator's Manual
21" Self Propelled
Mulching Mower
Model Series 556
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,
MTD LLC,P.O.BOX361131CLEVELAND,OHIO44136-0019
PRINTED IN U.S.A.
FORM NO. 769-01608
(2/3/2005)
TABLEOFCONTENTS
Content
Important Safe Operation Practices Slope Gauge Assembling Your Lawn Mower
Know Your Lawn Mower Operating Your Lawn Mower
Maintaining Your Lawn Mower
Page Content Page
3 Service & Adjustments 13
6 Off Season Storage 14
7 Trouble Shooting 15 9 Illustrated Parts List 16
10 Warranty 20 11
FINDINGMODELNUMBER
This Operator's Manual is an important part of your new lawn mower. 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.
Copy the model number here:
WITD LLCYaRD-MaN,f/P o Box3o,,3,
www.yardman.com 330-220-4683
CLEVELAND,OH 44136
800-800-7310
Copy the serial number here:
CUSTOMERSUPPORT
Please doNOTreturntheunitto the retailer fromwhereit waspurchased,withoutfirstcontactingCustomerSupport.
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:
Visit yardman.corn for many useful suggestions. Click on Customer Support button and you will get the four options reproduced here. Click on the appropriate button and help is
immediately available.
answer you a__?
a mouse crick away!
NeeJ li}al as._ista_c÷ ? Click _e_e te f_
_uals O_li_e
If you prefer to reach a Customer Support Representative, please call 1-800-800-7310.
answer you az_s
looking Mr could be just a mouse crick away!
En ine
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.
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.
WARNING: 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 operation instructions and safety rules inthis manual and should be trained and supervised by a parent. Only responsible individuals who are familiar with these safe operation rules should use this machine.
4. Thoroughly inspect the area where 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 inthe operator zone behind the handles and keep bystanders, helpers, children and pets at
least 75 feet from the machine while it is in operation. Stop machine if anyone enters the area.
6. Always wear safety glasses to protect your eyes during equipment operation and while performing an adjustment or repair. 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.
5. Do not operate the mower while under the influence of alcohol or drugs.
6. Do not engage the self-propelled mechanism on
units so equipped while starting engine.
7. 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.
8. 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
yourfooting,releasethebladecontrolhandle immediatelyandthebladewillstoprotatingwithin
threeseconds.
9. Mowindaylightorgoodartificiallight;walk,notrun.
10.Stopthebladewhencrossinggraveldrives, walkwaysorroads.
11.Iftheequipmentshouldstarttovibrateabnormally, stoptheengineandcheckimmediatelyforthe cause.Vibrationisgenerallyawarningoftrouble.
12.Shuttheengineoffandwaituntilthebladecomes
toacompletestopbeforeremovingthegrass
catcheroruncloggingthechute.Thecuttingblade continuestorotateforafewsecondsafterthe
engineisshutoff.Neverplaceanypartofthebody inthebladeareauntilyouaresurethebladehas stoppedrotating.
13.Neveroperatemowerwithoutpropertrailshield, dischargecover,grasscatcher,bladecontrol handleorothersafetyprotectivedevicesinplace andworking.Neveroperatemowerwithdamaged safetydevices.Failuretodosocanresultin personalinjury.
14.Mufflerandenginebecomehotandcancausea burn.Donottouch.
15.Onlyusepartsandaccessoriesmadebythe originalequipmentmanufacturer(O.E.M).Failure
todosocanresultinpersonalinjury.
16.Ifsituationsoccurwhicharenotcoveredinthis manual,usecareandgoodjudgment.Contactyour
dealerforassistance.Telephone1-800-800-7310
forthenameofyournearestdealer.
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. Before operating this unit on a slope or hilly area, use the slope gauge on page 6 to measure slopes. 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 caution when changing direction.
,
Watch for holes, ruts, rocks, hidden objects, or bumps which can cause you to slip or trip. Tall grass can hide obstacles.
,
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 injurycan 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. Ifpossible, remove gas-powered equipment from
the truck or trailerand refuel it on the ground. Ifthis
isnot 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 indoorsbecause flammable vapors will accumulate in the area.
9. Neverremovegascaporaddfuelwhiletheengine ishotorrunning.Allowenginetocoolatleasttwo minutesbeforerefueling.
10.Neveroverfillfueltank.Filltanktonomorethan_/2 inchbelowbottomoffillernecktoprovidespacefor
fuelexpansion.
11.Replacegasolinecapandtightensecurely.
12.Ifgasolineisspilled,wipeitofftheengineand equipment.Moveunittoanotherarea.Wait5 minutesbeforestartingtheengine.
13.Neverstorethemachineorfuelcontainerinside wherethereisanopenflame,sparkorpilotlightas
onawaterheater,spaceheater,furnace,clothes dryerorothergasappliances.
14.Toreducefirehazard,keepmowerfreeofgrass, leaves,orotherdebrisbuild-up.Cleanupoilorfuel spillageandremoveanyfuelsoakeddebris.
15.Allowamowertocoolatleast5minutesbefore 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 and instruction 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 inthis manual and on the machine.
#ANaSR
/ WARNING
09
UJ o_
|,ql
SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE
A POWER POLE
A CORNER OF A BUILDING
|
15 o
L
_ WARNING
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.
_o
SECTION3: ASSEMBLINGYOURLAWNMOWER
RemovingUnitFromCarton
Remove staples, break glue on top flaps, or cut
tape at carton end and peel along top flap to open.
Remove loose parts included with unit (i.e.,
operator's manual, oil, etc.).
Cut corners and lay carton down flat. Remove
packing material.
Roll or slide unit out of carton. Check carton
thoroughly for loose parts.
NOTE: Make sure not to crimp cables while removing
loose parts or the entire unit from the carton. NOTE: The indentation in your mowing deck is
intentional and not a defect. It allows the manufacturer different configurations than the one you currently
have. See Figure 1.
Indentation Intentional
Remove any packing material which may be
between the upper and lower handles for shipping purposes.
2. Lift lower handle
Move bag
away
3. Lift upper handle
Figure 2
Raise the lower handle in the direction shown in Figure 2 (step 2) till it snaps into place.
Raise the upper handle inthe direction shown in Figure 2 (step 3). Tighten the wing nuts which are
already on the handle. See Figure 3.
Figure I
ToolsRequired
Pair of Pliers
Funnel
NOTE: Reference to right or left hand side of the mower and/or front or behind the mower is observed from the
operating position.
HardwarePack
Please identify each piece of the hardware pack as shown in figure here.
Wing Carriage
Nut(2) Bolt (2)
?
AssemblingHandle
Remove grass bag from the unit and set it out of the way. See Figure 2 (step 1).
ower Handle
__ Upper Handle
= wing nut
Tighten this
\
Figure 3
NOTE: Make sure to route the cables inside the lower handle. Also do not crimp the cables while rifting the
handle up.
For shipping purposes, the hairpin clip is placed in the outer hole of the weld pin on the lower handle.
Remove the hairpin clip from the outer hole of the
weld pin. See Figure 4.
Using a pair of pliers, insert the hairpin clip into the
inner hole on the weld pin. Repeat on other side.
See Figure 4.
Carriage Bolt
Grass Catcher
*/Frame Insert frame
Wing Nut
Hairpin Clip_%_
Insert the carriage bolt, included in the hardware pack, in the upper hole on the handle mounting bracket (carriage bolt must go to the inside of handle). Secure with one plastic wing nut, also included in the hardware pack. Repeat on the other side with remaining items from the hardware pack.
Attach cables to the lower handle with the two cable
ties already on the lower handle. Insert pegs on
cable ties into the holes on the lower handle. Pull cable ties tight and cut off the extra.
_)_andle
Mounting Bracket
Pin
Figure 4
AttachingStarterRope
The rope guide is already attached to the right side of the upper handle of your mower. See Figure 5.
With spark plug wire disconnected and grounded, hold the blade control against the upper handle, and pull the starter rope out of the engine.
Slip the rope through the rope guide as shown below. Tighten the wing nut holding the rope guide
to the upper handle.
Wing Nut Upper
StarterRope.........." _//_/__'__Handle
Plastic
Channel
Figure 6
Slip the openings inthe side of the plastic channel on bag over the hooks on the grass catcher frame. Secure bag to the frame by working the six plastic channels on bag over frame. All of the plastic channels except the center top of the bag attach from the outside of bag. The center top of the bag
attaches from inside the bag. See Figure 6.
_ ARNING: When using the mower to bag
grass clippings, make sure the hooks on the grass catcher are firmly seated on the chute pivot rod, and the rear discharge door rests
firmly against the top of the grass catcher.
Grass Catcher Assembly
lete
AttachingGrassCatcher
Lift the rear discharge door and place the grass catcher on the pivot rod. Let go of discharge door so that it rests on the grass catcher. See Figure 7.
Rear Discharge Door
OozeOu, e
Figure 5
AssemblingGrassCatcher
NOTE: If the grass catcher came pre-assembled, proceed to the next section. If not, follow the steps below to assemble it before attaching to the mower.
Insert frame into grass bag with the black plastic side on the bottom of bag. See Figure 6.
Figure 7
SECTION4: KNOWYOURLAWNMOWER
Read this owner's manual and safety rules before operating your lawn mower. Compare the illustrations in Figure 8 with your lawn mower to familiarize yourself with the location of various controls and adjustments.
Save this manual for future reference.
WARNING" The operation of any lawn
mower can result inforeign objects being thrown into the operator's eyes thus causing severe eye damage. Always wear safety glasses while operating the mower, or while performing any adjustments or repairs on it.
-Blade Control
_Drive Control
StarterRope
The starter rope isattached to the handle. Stand behind the unit and pull the starter rope to start the unit.
BladeControl
The blade control is located on the upper handle of the
mower. The blade control must be depressed in order to operate the unit. Release the blade control to stop the engine and the blade.
_ WARNING: The blade control is a safety
DriveControl
The drive control is located on the upper handle and is
used to engage the drive. Squeeze the drive control against the upper handle to engage the drive; release it to slow down or stop the mower from propelling.
CuttingHeightAdjustmentLever These levers are located on each wheel and they are
used to adjust the cutting height. All four levers have to
be at the same relative position to ensure uniform cut.
device. Never attempt to bypass its operations or alter it in any way.
/
Grass Catcher
Bag
Cutting Height Adjustment Levers
NOTE: For engine controls, please refer to
the engine manual
Figure 8
SECTION5: OPERATINGYOURLAWNMOWER
_ ARNING" Read and understand all
Gas&OilFill-Up
Check oil level and add oil if necessary. Follow
Service the engine with gasoline as instructed in
BeforeStartingMower
Attach spark plug wire to spark plug. Make certain
ThrottleSpeed
Your lawn mower engine is equipped with a constant speed throttle, which is set at full throttle for best performance.
StartingEngine
instructions and warnings on the machine and in this manual before operating.
relevant instructions inthe engine manual for this.
the engine manual.
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.
the metal cap on the end of the spark plug wire
(inside the rubber boot) is fastened securely over
the metal tip on the spark plug.
Choke Leverf
Move the choke lever all the way backward into the choke position. Once the engine iswarm, the lever will automatically revert to the RUN position. Refer Standing behind the mower, depress the blade control and hold it against the upper handle. Grasp starter handle and pull rope out slowly until engine reaches the start of compression cycle (rope will pull slightly harder at this point). Let the rope rewind slowly. Pull rope with a rapid, continuous, full arm stroke. Keeping a firm grip on the starter handle, let the rope rewind slowly.
ToStopEngine
Release the blade control to stop engine and blade.
Disconnect spark plug wire and ground it against the engine to prevent accidental starting while equipment is unattended.
Recoil
Starter
Fuel Valve
Figure 9
WARNING" Be sure no one other than theoperator is standing near the lawn mower while starting engine or operating mower.
WARNING: Never run engine indoors or in enclosed, poorly ventilated areas. Engine
exhaust contains carbon monoxide, an odorless and deadly gas.
WARNING" Keep hands, feet, hair and
loose clothing away from any moving parts on engine and lawn mower.
Make sure the fuel valve lever found on the left side of the engine is in the ON position. See Figure 9.
NOTE: See your engine manual packed with your unit for more detailed instructions,
UsingYourLawnMower
You can use your mower as a mulcher or a rear bagger.
Be sure that the lawn is clear of stones, sticks, wire, or other objects which could damage lawn mower
or engine. Such objects could be accidently thrown by the mower in any direction and cause serious personal injury to the operator and others.
For best results, do not cut wet grass because it tends to stick to the underside of the mower.
For a healthy lawn, always cut off one-third or less of the total length of the grass. Lawn should be trimmed in fall as long as there is growth.
AdjustingCuttingHeight
Refer to height adjustments section of this manual on page 13 for instruction on how to adjust the cutting
10
You can use the grass catcher bag to collect clippings while you are operating the mower.
_ ARNING" If the mower strikes a foreignobject, stop the engine. Remove spark plug
wire from the spark plug and thoroughly inspect for any damage. Repair the damage promptly before restarting and operating the mower.
height and the handle height. For best results in mowing, keep the cutting height
position high until you can determine a suitable height.
BaggingGrassClippings
Attach grass catcher following instructions on page
8. Grass clippings will automatically collect in the bag as you run the mower. Operate the mower till the grass bag is full.
Stop engine completely by releasing the blade control handle. Make sure that the unit has come to
a complete stop.
Lift discharge door and pull grass bag up and away from the mower to dispose of the grass clippings.
SECTION6: MAINTAININGYOURLAWNMOWER
_ ARNING" Always stop the engine and
disconnect the spark plug wire before performing any maintenance work or adjustments on your lawn mower.
CleaningMower
The underside of the mower deck should be cleaned after each use to prevent any build-up of grass
clippings, leaves, dirt, or other debris. Ifthis debris is allowed to accumulate, it will result in rust and corrosion.
NOTE: We do not recommend the use of pressure
washers or garden hose to clean your unit. These may
cause damage to pulleys, bearings, or the engine. The use of water will result in shortened life and reduce
serviceability.
Disconnect spark plug wire.
Drain the gasoline from the lawn mower, or place a piece of plastic under the gas cap.
Tip the mower so that it rests on the housing. Keep
the side with the air cleaner facing up. Hold the
mower firmly.
Scrape and clean the underside of the deck with a suitable tool. Do not spray with water.
Put the mower back on its wheels on the ground. If you had put plastic under the gas cap, make sure to
remove it now.
_ ARNING: Never tip the mower more than
90 degrees in any directions and do not leave the mower tipped for any length of time. Oil can drain into the upper part of the engine causing a starting problem.
EngineCare
A list of key maintenance jobs required for good
performance bythe mower is given below. Follow the
accompanying engine manual for detailed list and
instructions.
Change engine oil regularly, as instructed in the engine manual. Check oil level before starting engine every time.
Service air cleaner regularly. You may have to service this more frequently ifyou are operating the
mower under extremely dusty conditions.
Clean the engine periodically. Remove dirt and debris with a cloth or brush.
Clean the spark plug and reset the gap to.030" at
least once a season. Refer to the engine manual for
correct spark plug type.
Inspect muffler periodically, and replace if
necessary. Damaged mufflers or spark arresters
can create afire hazard.
_ ARNING: Avoid muffler and surroundingareas while the mower engine is hot because
temperature of these areas of the engine may
exceed 150° F.
11
Lubrication
Lube
_ ARNING: When removing the cuttingblade for sharpening or replacement, protect
hands by using heavy gloves or a thick rag to grasp the cutting blade.
Disconnect spark plug wire from spark plug.
Turn mower on its side making sure that the air filter and the carburetor are up.
To RemoveBlade:
Remove the hex bolt which holds the blade adapter-pulley assembly to the engine crankshaft.
See Figure 11. Remove the pulley assembly and the bell support from the crankshaft.
Remove blade from the blade adapter and pulley.
Pulley___ Spacer Flat Washer k_---_""--_ _--.__ ._ Belt
Blade_ __
@b Spring Washer
Lube
Figure 10: Lubrication Chart
Wheels
Lubricate the wheels and bearings, if so equipped, at least once a season with light oil or engine oil. Also, if the wheels are removed for any reason, lubricate the surface of the pivot arm axle and the inner surface of the wheel with light oil.
RearDischargeDoor
Lubricate the torsion spring and the pivot point on each end of the rear discharge door using a lightoil.
Transmission
The transmission ispre-lubricated and sealed at
the factory and does not require lubricationon a
regular basis as part of maintenance.
BladeControl
Lubricate the pivot points on the blade control and
the brake cable at least once a season with light oil.
The blade control must operate freely in both directions.
Engine
Follow the engine manual instructions and recommended schedule for lubricating engine components.
Blade Bell Support
HexBolt _
To ReplaceBlade:
Before reinstalling the blade-pulley assembly to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil.
Also lubricate the bolt hole and the hex bolt.
Insert the hex bolt, earlier removed, through the center holes on the blade bell support and the blade adapter-pulley assembly respectively.
Install the blade assembly on the crankshaft. Tighten the hex bolt to the recommended torque.
Blade Mounting Torque:
Center bolt: 450 in.lbs, minimum, 600 in.lbs, maximum.
To Sharpen Blade:
The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen the
blade while it is still on the mower.
Follow the original angle of grind as a guide. Make sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.
NOTE: An unbalanced blade will cause excessive
vibration when rotating at high speeds, may cause damage to the mower and could break, causing
personal injury. Test the blade by balancing # on a
round shaft screwdriver or ablade balancer.
_Adapter-Pulley
Assembly
Figure 11
BladeCare
Periodically inspect the blade adapter and pulley for cracks, especially if you strike aforeign object.
If the blade is not balanced, remove metal from the heavy side until it balances evenly.
12
SECTION7: SERVICE& ADJUSTMENTS
ReplacingDriveBelt
Remove two shoulder screws securing the front drive cover to the mower deck. See Figure 12.
Loosen this screw
Shoulder
_Screw
Screw
Transmission Cover
Figure 12
Press inward on the sides of the front drive cover and release the tabs that secure the front drive
cover to the height adjuster brackets. Remove drive cover from the mower.
Using a torx wrench, loosen the screw holding the belt tension spring to the transmission. See Figure
12. Do not remove the screw completely. As you loosen the screw, tension on the belt will release.
Push the transmission up a little and slide the belt off the transmission pulley.
Lift the mower to access the belt from the underside of the mower.
_ ARNING" Use a thick piece of rag tohandle the blade while sliding the belt in the
next step. Make sure the engine does not start at all while doing this job.
Slide the belt off the engine pulley and around the blade. See Figure 13.
Replace with the new belt, working around the blade. Make sure the belt is firmly seated on the engine pulley while pulling from the other side and sliding it around the transmission pulley.
Put the mower down with all four wheels firmly placed on one level.
Front Drive
Tighten the screw, loosened earlier, to secure the belt tension spring to the transmission, and
reassemble the front drive cover.
Right Front Left Front Wheel _ Wheel
Figure 13
ReplacingRearFlap
To remove rear flap, cut off the flat end of the wire rod which secures it to the deck. See Figure 14.
Attach the new flap and new rod to deck, bending
the ends of the new rod over to secure to deck.
Discharge
Door
Handle Bracket Rear _nd
Bracket
_ __ear
Figure 14
AdjustingCuttingHeight
IMPORTANT: All wheels must be placed inthe same
relative position. For rough or uneven lawns, move the height adjustment lever to a higher position. This will help stop scalping of the grass.
An adjusting plate and thumb lever at each wheel
provides cutting height adjustment. Each adjusting plate has nine height positions. Height of cut will be
changed when you move the thumb lever from one
position to another.
Simply depress the lever towards the wheel and move the lever assembly to desired position. See Figure 15.
For rough or uneven lawns, move the height
adjustment handles to higher cutting height position.
Flap
13
Height Adjustment Lever
AdjustingCarburetor
If the engine is running rough, minor adjustments to the carburetor may be required to compensate for differences in fuel, temperature, altitude and load.
NOTE: Dirty air cleaner may cause an engine to run
rough.Before adjusting carburetor, check air cleaner.
To adjust the carburetor, please follow the
recommendations and instructions on carburetor adjustment in the engine manual.
Figure 15
SECTION8: OFF-SEASONSTORAGE
Prepare your lawn mower for storage at the end of the season or if the unit will not be used for 30 days or more. Store the mower in a clean, dry area.
Mower
Clean underside of the mower following instructions inthe Maintain Your Lawn Mower
section of this manual.
Lubricate mower as instructed on page 12.
You can fold your mower's handle for convenient storage: Remove the starter rope from the rope guide; loosen the two hand knobs on the sides of
the handle, and let the upper handle fold down to the rear. Move the hairpin clips to the outer hole in the weld pins on the handle mounting brackets.
Spread the sides of the lower handle, and push it
forward and down.
Inspect and replace/sharpen blade, if required.
_ WARNING: Ifany adjustments are made to
the engine (e.g. carburetor) while the engine is
running, keep clear of all moving parts. Be
careful of heated surfaces like the muffler.
Engine
Follow recommendations in the engine manual for off-season storage of the engine.
Change oil if it has not been changed in the last three months. For instructions on how to change oil,
refer to the engine manual.
Clean engine and remove any grass clippings.
Other
Do not store gasoline from one season to another.
Replace your gasoline can if it starts to rust. Rust and/or dirt in the gasoline will cause problems. Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer.
NOTE: If storing in an unventilated or metal storage shed, be certain to rustproof the equipment by coating with a light oil or silicone.
14
SECTION9: TROUBLE-SHOOTING
Problem Possible Cause Corrective Action
Engine fails to start
Engine runs erratic
Engine overheats
Occasional skip Spark plug gap too close
1. Blade control disengaged
2. Spark plug wire disconnected
3. Fuel tank empty, or stale fuel
4. Blocked fuel line
5. Faulty spark plug
6. Engine flooded
1. Spark plug wire loose
2. Blocked fuel line or stale fuel
3. Vent in gas cap plugged
4. Water or dirt infuel system
5. Dirty air cleaner
1. Engine oil level low
2. Airflow restricted
1.
1. Engage blade control.
2. Connect wire to spark plug.
3. Fill up tank with fresh gasoline.
4. Clean fuel line.
5. Clean, adjust gap, or replace.
6. Wait a few minutes to restart. Do not prime.
1. Connect and tighten spark plug wire.
2. Clean fuel line, fill tank with fresh gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Clean air cleaner. Refer to engine manual.
1. Fill crankcase with proper oil.
2. Clean lawn mower engine.
1. Adjust gapto.030 inches. (hesitates) at high speed
Idles poorly 1. Spark plug faulty, or gap too wide 1. Reset gap to.030 inches or replace spark plug.
2. Dirty air cleaner 2. Clean air cleaner.
Excessive vibration 1. Blade loose or unbalanced 1. Tighten blade and adapter, balance blade.
2. Bent cutting blade 2. Replace blade.
3. Bent engine crankshaft 3. Contact the nearest service center
Mower will not 1. Wet grass 1. mulch grass 2. Excessively high grass 2.
Wait until grass is dry to cut. Mow once at a high cutting height, then mow
again at desired height.
Uneven cut
Mower will not
self propel
3. Dull blade 3.
1. Wheels not at same height 1.
2. Dull blade 2.
1. Belt not installed properly. 1.
2. Debris clogging drive operation.
Sharpen or replace blade. Reposition all wheels at same height.
Sharpen or replace blade. Check belt for proper pulley installation and
movement.
,
Stop engine, disconnect spark plug wire and
clean out debris.
3. Damaged or worn belt.
,
Inspect and replace belt.
NOTE: For repairs beyond the minor adjustments listed above,
contact your local authorized service dealer,
15
SECTION10: PARTSLISTMODEL556
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16
ModelSeries556
Ref. No
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
Part No.
747-1214 710-0599
782-5004B 782-5003A 710-1017 731-2626 747-1161A 749-1092A 631-0075B 736-0250 736-04173 750-04438 720-0279 720-0284 710-1205 746-1113 710-1174 687-02033 687-02031 726-0240 714-0104 710-1008 746-04112A 664-04027 710-1650 682-0015 756-04160 756-04161 787-01248 731-0981A 750-1166 710-0216 732-04090A 712-04065 731-05013A 782-5002B 754-0637A 736-0447 750-04178 748 -04082 742-0741 736-0524B 687-02044
Description Ref.No Drive Control 43. TT Screw 1/4-20 x 0.5 44. Rear RH Baffle 21" Rd. 45. Rear LH Baffle 21" Rd. 46.
Hex Washer Head Tap Screw 47. Deluxe Bail Cover 48.
Blade Control 49. Upper Handle 50.
Engine Assembly Spacer Flat Washer 1.00 x 1.75 x .107 51.
Spring Washer 1.005 x 1.825.048 52. Sleeve Spacer 25mm x1.375 x.440 53.
Handle Knob 54. Handle Knob 55.
Eye Bolt Control Cable - 37.75" 56.
Carriage Bolt 5/16-18 x 2.0 57. Handle Bracket - RH 58.
Handle Bracket - LH Cable Tie 59. Cotter Pin 60.
Self-Tapping Sems Screw 61. Drive Cable - 50.50" 62.
Grassbag Assembly 63. Shoulder Screw # 12 -24
Front Bearing Assembly 64. Half Key Pulley 25mm x 2.62 O.D. Half Upper Pulley 25mm x 2.62 O.D. 65.
21" Deck SS SP 66. Hub Cap 67.
Slev. Spacer 2.1" Lg. 68. Hex Screw 3/8-16 x.75 69.
Torsion Spring - RH 70. Flange Lock Nut 3/8-16 71. Transmission Cover (Black) 72.
Front Baffle 73. V-Belt 74. Wave Washer 75.
Sleeve Spacer 9.04" Lg. 76. Blade Adapter w/Pulley 77. 21" Mulching Blade Blade Bell Support 78. Pivot Plate Assembly
Part No.
710-1257
749-0928A 732-1043 720-0426 732-04089A 734-2042 716-0865 717-1762 717-1761 747-04080 736-0451 712-3005 710-1652 687-02057 687-02056 715-0221 736-0474 687-02039 687-02040 732-0866 720-0312 738-0507B 734-04093 782-0512B 782-0511A 732-0706 732-0707 732-0700 731-04998 747-0996 716-0102 731-04134A 782-7551A 756-04017 750-04162 715-04011 710-0703 712-0397 618-0657 682-0512A 682-0511A 736-0182
Description
Hex Screw 3/8-24 x 2.50 Lower Handle
Belt Tension Spring Adjustment Knob Torsion Spring - LH
Front Wheel, 8 x 2.125 GearZag BIk Snap Ring
Gear 14T RH FWD Gear 14T LH FWD
Grass Bag Frame Saddle Washer
Hex Flange Lock Nut 3/8-16 TT Scr. w/Washer 1/4-20 x.625
Handle Bracket Assembly - LH
Handle Bracket Assembly - RH
Dowel Pin Washer
Pivot Arm Assembly - RH
Pivot Arm Assembly - LH
Rear Spring Lever
Foam Grip Shoulder Scr.500 Dia. x.434
Rear Wheel, 12 x 2.125
Height Adjuster Plate - RH
Height Adjuster Plate - LH
Front Lever- RH
Front Lever - LH Wire
Rear Trailing Shield
Pivot Rod Snap Ring
Rear Discharge Door Wheel Dust Cap
Input Pulley Spacer.375 x.50 x 1.02" Lg.
Roll Pin Carriage Bolt 1/4-20
Wing Nut Transmission Assembly
Height Adjustment Assembly - RH
Height Adjustment Assembly - LH Spacer Washer .500 x 1.00 x .022
17
z
Q
BAGGER DOOR
O
CD
m
CD
me
CD
O'}
GO
RIGHT SIDE OF HANDLE BARS ADJACENT TO DOUBLE BAnLS
FACUNG iNSiDE OF HANDLES
d
NOTES
19
MANUFACTURER'S LIMITED WARRANTY FOR:
YaRD.MaNTM
®
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.
"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.
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 inyour 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 on to our Web site at www.mtdproducts.com.
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.
b,
Log splitter pumps, valves, and cylinders have a
separate one year warranty.
C.
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.
d,
Service completed by someone other than an
authorized service dealer.
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.
f,
Replacement parts that are not genuine MTD parts. Transportation charges and service calls.
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.
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 shall not extend to anyone other than the original purchaser or to the person for whom it was purchased as a gift.
HOW STATE LAW RELATES TO THIS WARRANTY: This limited warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.
IMPORTANT:Owner must present Original Proof of
Purchase to obtain warranty coverage.
MTD LLC, P.O.BOX361131CLEVELAND,0HI0 44136-0019; Phone:1-800-800-7310
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