Yard-Man 445 Operator's Manual

Operator's Manual
21" Rear-Discharge
Lawn Mower
Model 445
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 attester meeting applicable local or state laws (if any). If a spark attester 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 attester 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. FORM NO. 769-00540
(10/2002)
TABLEOFCONTENTS
Content Page
Important Safe Operation Practices ................................................................................... 3
Slope Gauge ...................................................................................................................... 6
Assembling Your Lawn Mower .......................................................................................... 7
Know Your Lawn Mower .................................................................................................... 10
Operating Your Lawn Mower ............................................................................................. 11
Maintaining Your Lawn Mower ........................................................................................... 12
Service .......................................................................................................................... 13
Making Adjustments .......................................................................................................... 15
Off- Season Storage .......................................................................................................... 16
Troubleshooting ................................................................................................................. 17
Parts List .......................................................................................................................... 18
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. The information on the model plate is very important if you need help from our Customer Support Department or
an authorized dealer.
You can locate the model number by standing behind the unit in the operating position and looking down at the rear of the deck. A sample model plate is explained below. For future reference, please
copy the model number and the serial number of the equipment in the space below.
(Model Number) (Serial Number)
Copy the model number here:
Copy the serial number here:
ENGINEINFORMATION
The engine manufacturer isresponsible 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
If you have difficulty assembling this product or have any questions regarding the controls, operation or
maintenance of this unit, please call the Customer Support Department.
Call 1- (330) 220-4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support representative. 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.
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: This machine was built to be operated according to the rules for safe operation inthis
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.
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.
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 in this 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 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 awall or obstruction which may cause discharged material to ricochet toward operator.
5. To help avoid blade contact or a thrown object injury, stay in the 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 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.
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. Neveroperatethemowerinwetgrass.Alwaysbe sureofyourfooting.Aslipandfallcancause seriouspersonalinjury.Ifyoufeelyouarelosing yourfooting,releasethebladecontrolhandle immediatelyandthebladewillstoprotatingwithin
threeseconds.
9. Mowindaylightorgoodartificiallight.Walk,never run.Stopthebladewhencrossinggraveldrives, walkwaysorroads.
10.Iftheequipmentshouldstarttovibrateabnormally, stoptheengineandcheckimmediatelyforthe cause.Vibrationisgenerallyawarningoftrouble.
11.Shuttheengineoffandwaituntilthebladecomes toacompletestopbeforeremovingthegrass catcheroruncloggingthechute.Thecuttingblade
continuestorotateforafewsecondsafterthe engineisshutoff.Neverplaceanypartofthebody
inthebladeareauntilyouaresurethebladehas stoppedrotating.
12.Neveroperatemowerwithoutpropertrailshield, dischargecover,grasscatcher,bladecontrol handleorothersafetyprotectivedevicesinplace andworking.Neveroperatemowerwithdamaged safetydevices.Failuretodoso,canresultin personalinjury.
13.Mufflerandenginebecomehotandcancausea burn.Donottouch.
14.Onlyusepartsandaccessoriesmadeforthis machinebytheoriginalequipmentmanufacturer (O.EM).Failuretodosocancausepersonalinjury.
15. If situations occur which are not covered in this manual, use care and good judgment. Contact your
dealer for assistance. Telephone 1-800-800-7310 for the name of your nearest 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. 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 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 ifthe 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 achild 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
Safe Handling of Gasoline
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. If possible, 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 ½ inch below bottom of filler neck to provide space 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 inside where there is 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.EM.) 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 aforeign 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 in this manual and on the machine.
WARNING
USE THIS PAGE AS A GUIDE TO DETERMINE SLOPES WHERE YOU MAY NOT OPERATE SAFELY.
I--
w
WARNING
Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-I12 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.
_D
SECTION3: ASSEMBLINGYOURLAWNMOWER
RemovingUnitFromCarton
Remove staples, break glue on top flaps or cut tape
at carton end and peel top flap to open carton.
Remove loose parts if included with unit. 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
the loose parts or the entire unit from the carton.
ToolsRequired
Pair of Pliers
Funnel Set of adjustable wrenches
DisconnectingSparkPlug
Before setting up your lawn mower, disconnect the spark plug wire from the spark plug, and ground it to a bolt, retaining post or V-slot on the engine. See Figure 1.
Spark Plug
All Engines with Rubber Boot
Figure 1
AssemblingHandle
For shipping purposes, the grass bag was placed on
top of the unit. Remove it from the unit and set it out of the way. See Figure 3.
Raise the lower handle, as shown in Figure 3, until it snaps into place. Raise the upper handle as shown in Figure 3. Tighten the two wing nuts which are already on the handle. See Figure 3.
Tighten these wing nuts
Upper Handle
Lower Handle
Figure 3
NOTE: Make sure to route the cables outside the lower
handle. Also do not crimp the cables while lifting 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.
Using a pair of pliers, insert the hairpin clip into the inner hole in the weld pin. Repeat on the other side. See Figure 4.
Lower
Hail
Inner Hole
Upper Handle
Lift
handle
Lift lower handle
Grass Bag
Figure 4
Figure 2
Insert post of cable ties that are on lower handle into the holes provided on the lower handle. The holes may be on the inside or outside. Pull cable ties tight and cut off the extra. See Figure 5 below.
Cable Tie
Figure 5
AttachingStarterRope
The rope guide is already attached to the right side of the lower handle of your mower. See Figure 6.
With the spark plug wire disconnected and grounded, hold the blade control handle against the upper handle, and pull the starter rope up to the rope guide. See Figure 6. Slip the rope through the rope guide as shown below. Tighten the wing nut holding the rope guide
to the lower handle.
Slip rope into
rope g_i_R
Guide
Wing Nut
Figure 6
GrassCatcherAssembly
NOTE: Make certain the grass bag is turned right side
out before assembling (waming label will be on the outside).
Partsfor SoftGrassBag
1. Front Frame
2. Rear Frame
3. Bag
_ar
Frame Frame
Assembly
AssemblingSoftGrassBag
Join the rear frame and front frame assembly as shown in Figure 7A.
Place the bag over the frame (black plastic side is the bottom of bag). Slip the openings in the side of the plastic channels on the bag over the hooks on the grass catcher frame.
Secure bag to frame by working the plastic
channels on bag over frame as shown in Figure 7B. 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.
[] []
Frame
Hook
Plastic
Channels
Figure 7
AttachingGrassCatcher
If your mower is equipped with a mulching plug, and
it is in place on the mower, lift the rear discharge
door and remove the rear mulching plug from the
mower. See Figure 8.
Rear Mulching Plug
Figure 8
NOTE: Make sure that the cables are routed to the outside of the handle when attaching the grass catcher.
Lift the rear discharge door.
Place the hooks of the grass catcher into the slots
in the handle bracket assemblies on both sides. See Figure 9. Release the rear discharge door.
Rear DiScharge Door
Slide the rod into the upper edge of the chute
deflector so the tab on the rod is toward the left side of the chute deflector. When assembled correctly,
the rod will extend further to the left side than the
right side. See Figure 10. Slide the push nut onto the right side of the rod to
secure.
AttachingChuteDeflector(if Equipped)
Lift the rear discharge door on the mower. Remove rear mulching plug if installed
Place the ends of the rod into the slots inthe handle bracket assemblies. See Figure 11.
Release the rear discharge door.
Rear
Discharge
Door
/
Figure 9
RemovingGrassCatcher
Lift the rear discharge door on the mower. Lift the grass catcher up, out of the slots in the
handle bracket assemblies.
Reinstall the plastic rear mulching plug. Release the rear discharge door.
WARNING: Never operate the mower
unless the hooks on the grass catcher are
seated inthe slots on the handle bracket assemblies, and the rear discharge door rests
firmly against the top of the grass catcher.
ChuteDeflector Equipped)
If your mower is equipped with the chute deflector,
assemble as follows:
Rod Tab
Slots in
Handle Bracket
Assemblies
Figure 11
Convertingto Mulcher
Liftthe rear discharge door.
Remove the grassbag or chute deflector. Insert the mulch plug. See Figure 8. Release the rear discharge door. See Figure 9.
Chute
Deflector
Push
Nut
Figure 10
SECTION4: KNOWYOURLAWNMOWER
Read this owner's manual and safety rules before operating your lawn mower. Compare the illustrations in Figure 12 with your lawn mower to familiarize yourself with the location of various controls and adjustments.
1<:3 Blade Control Handle
Lower Bail Handle
Recoil Startel
Chute Deflector
(Optional) "_2:__
ear Mulching
Plug
Plug
Prime
Height Adjustment Lever
Figure
BladeControlHandle
The blade control handle is located on the upper handle of the mower. The blade control handle must be
depressed in order to operate the unit. Release the
blade control handle to stop the engine and the blade.
WARNING: The blade control handle is a safety device. Never attempt to bypass its
operations. The blade will be rotating whenever the engine is running.
Lower BailHandle
The lower bail handle is located on the upper handle and is used to engage the drive. Squeeze the bail
handle against the upper handle to engage the drive; release it to slow down or stop mower from propelling.
12
ThrottleControl
The engine is equipped with a constant speed throttle for maximum engine and cutting performance.
RecoilStarter
The recoil starter is attached to the handle. Stand behind the unit and pull the recoil starter to start engine.
Primer The primer isused to pump gas into the carburetor. Use
it to assist in starting a cold engine, but do not use it when restarting a warm engine after a short shutdown.
10
SECTION5: OPERATINGYOURLAWNMOWER
GasandOilFill-Up
_lb WARNING: Never fill fuel tank indoors, orwhen engine is running or hot. Do not smoke
when filling up the fuel tank.
Service the engine with gasoline and oil as instructed in the separate engine manual packed
with your mower. Read the instructions carefully.
BeforeStartingMower
Attach spark plug wire to spark plug. Make certain 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.
StartingEngine
,_ 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.
Push the primer three times. Wait two seconds
between each push. In temperatures below 55° F, prime five times. Do not prime to restart a warm
engine after a short shutdown. Standing behind the mower, depress the blade
control handle and hold it against the upper handle. Grasp starter handle and pull rope out slowly until
engine reaches start of compression cycle (rope will pull slightly harder at this point). Let the rope
rewind slowly. Pull rope with a rapid, continuous, full arm stroke. Keeping a firm grip on the starter
handle, let the rope rewind slowly.
StoppingEngine
Release blade control handle to stop the engine
and the blade.
Disconnect spark plug wire and move away from spark plug to prevent accidental starting.
OperatingYourLawnMower
Once the engine has started, squeeze the lower bail handle and the blade control handle against the upper handle to run the mower. Do not operate the mower without the mulching
cover, the grass catcher bag, or the discharge chute properly installed.
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,
preventing proper discharge of grass clippings, poor mulching conditions, and could cause you to slip and fall. New grass, thick grass, or wet grass may require a narrower cut. 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.
_b ARNING: Ifyou strike a foreign object,stop the engine. Remove spark plug wire from
spark plug, thoroughly inspect the mower for any damage. 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.
11
BaggingGrassClippings
You can use the grass catcher bag to collect clippings while you are operating the mower.
Attach the grass catcher following instructions on page 8 of this manual. Grass clippings will
automatically collect in the bag as you run mower. Operate mower till the grass bag is full.
Stop the engine completely by releasing the 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.
AdjustingCuttingHeight
Refer to height adjustments section of this manual on page 15 for instruction on how to adjust the cutting height and the handle height.
For best results in mowing, keep the cutting height position high until you have determined which
cutting height is preferred.
SECTION6: MAINTAININGYOURLAWNMOWER
WARNING: Always stop engine and
disconnect spark plug wire before performing any maintenance or adjustments on the mower.
WARNING: Never tip mower more than 90 degrees in any direction and do not leave it
tipped for long. Oil can drain into the upper part of the engine causing a starting problem.
CleaningtheLawnMower
Clean the underside of the mower deck after each use to prevent any build-up of grass clippings, ifthis
debris is allowed to accumulate, itwill 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 electric components, spindles, pufleys, bearings or the engine. The use of water will result in shortened life and reduced serviceability.
Disconnect spark plug wire. Drain gasoline from the
mower, or place a piece of plastic under gas cap. Tilt the mower so that the side with the air cleaner is
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. If you had put
plastic under the gas cap, remove it now.
EngineMaintenance
A list of key maintenance jobs required for good performance by the mower is given below. Follow the engine manual for detailed list and instructions.
Change engine oil after the first two operating hours and every 25 operating hours thereafter.
Check the oil level before starting the engine every
time.
Service foam filter in the air cleaner every 25 hours
of use and replace the paper filter component every
100 hours. You may have to service the air filter more frequently if you are operating the mower
under extremely dusty conditions. Clean 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 or every 50 hours of operation.
Spark plug replacement is recommended at the start of each season.
Inspect muffler periodically, and replace if necessary. Damaged mufflers or spark arresters
can create afire hazard. Make sure to avoid muffler and surrounding areas while the mower engine is
hot because temperature of these areas of the
engine may exceed 150° F.
12
Lubrication(SeeFigure13)
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 axle bolt and the inner surface of the wheel with light oil.
ChuteDeflector& RearDischargeDoor
Lubricate the torsion spring and the pivot point on each end of the rear discharge door using a light oil. This will prevent rusting.
Engine
Follow the engine manual instructionsand
recommended schedule for lubricating engine.
Transmission
The transmission is pre-lubricated and sealed at the factory and does not require lubrication.
Pivot Points
Lubricate the pivot points on the blade control handle, lower bail handle and the cutting height adjustment lever at least once a season with light
oil. The blade control handle and the lower bail handle must operate freely in both directions. The
cutting height adjustment levers should be able to move easily.
Lubricate
Figure 13
Follow engine manual
for lubrication
Lubricate
SECTION7: SERVICINGYOURMOWER
BladeCare
Periodically inspect the blade adapter and pulley for cracks, especially if you strike a foreign object. Replace when necessary.
WARNING: When removing the cutting
blade 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 bolt and the bell washer that hold the blade-pulley assembly to the engine crankshaft. See Figure 14. Remove the assembly from the
crankshaft,
Remove two bolts and lock nuts from the blade assembly, See Figure 14.
Remove the blade from blade adapter and pulley.
Pulley
Lock Nut _Assembly
Blade _ I_ _a_-_-- Lock Nut
Adapter .
"_ / Blade
Hex Bolt
Bell
Washer _ Hex Bolt
Figure 14
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 holes, bolt and the inner surface of the nuts.
13
Install the blade adapter on the pulley with the "star" away from the pulley. See Figure 14.
Place the new blade on the blade adapter with the side marked bottom (has a part number) facing away from the adapter. Secure the blade to the assembly with two hex bolts and lock nuts. Tighten the hex bolts to the recommended torque. Refer to 'Blade Mounting Torque' information below.
Install the blade assembly on the engine crankshaft. Secure with the hex bolt and bell
washer (cupped side of washer to blade) and tighten to the recommended torque. Refer to 'Blade Mounting Torque' information below.
IMPORTANT: The bolt used to secure the blade to
the engine is specially heat-treated. Do not substitute. To order replacement bolt, refer to the
parts list in the back of this manual.
,_ WARNING: To ensure safe operation of
your unit, all nuts and bolts must be checked
periodically for correct tightness.
BladeMountingTorque:
Blade adapter bolts: 120 in.lbs, minimum, 150 in.lbs. maximum.
Center bolt: 450 in.lbs, minimum, 600 in.lbs, maximum.
To SharpenBlade:
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.
IMPORTANT: 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 it on a round shaft screwdriver or a blade balancer.
If the blade is not balanced, remove metal from the heavy side until it balances evenly.
ReplacingDriveBelt
Remove two shoulder screws securing the front drive cover to the mower deck. See Figure 15.
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 atorx wrench, loosen the screw holding the belt tension spring to the transmission. See Figure
15. Do not remove the screw completely. As you loosen it, the tension on the belt will be released.
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.
Loosen this screw
Shoulder
Screw
Screw
Transmission Front Drive
Cover
Figure 15
Slide the belt off the engine pulley and around the blade. See Figure 16.
,_ WARNING: As always, use a thick piece ofrag to handle the blade while sliding the belt
around it. Make sure the engine does not start at all while doing this job.
Right Front Wheel
Left Front\
Engine Pulley
Figure 16
14
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. Tighten the screw, loosened earlier, to secure belt tension spring to the transmission and reassemble
the front drive cover.
ReplacingRearFlap
To remove rear flap, cut off the flat end of the wire rod which secures it to the deck. See Figure 17. Attach the new flap and new rod to deck, bending
the ends of the new rod over to secure to deck.
Rear Discharge
Handle Door Bracket
\
Handle
Rear Flap Bracket
Figure 17
SECTION8: MAKINGADJUSTMENTS
AdjustingHandleHeight
Your mower is shipped with the handle in the higher
height position. To lower height, proceed as follows.
Remove the starter rope from the rope guide.
Remove the upper handle by removing the hand knobs and carriage bolts. Lay the upper handle out of the way, being careful not to bend or kink the
cables.
Remove the hairpin clips from the weld pins on the handle brackets. Refer to Figure 4. Press out on the legs of the lower handle. Remove lower handle
from the mower. Turn the lower handle around so the notch on the
bottom of the lower handle is facing forward as shown in Figure 18. Reassemble, placing the bottom holes in the handle over the weld pins in the handle mounting bracket.
Reassemble the upper handle to the lower handle.
Insert hairpin clips in the inner holes of the weld pins and attach the starter rope as instructed inthe "Assembling Your Lawn Mower" section 3.
Lower Handle
Notch
Figure 18
AdjustingCuttingHeight
IMPORTANT: All wheels must be placed in the 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 position provides cutting height adjustment. Each adjusting plate has nine height positions. Height of cut will change when you move the thumb lever from one position to another.
15
Simply depress the lever towards the wheel and move the lever assembly to desired position. See Figure 19.
"eoi"us" ment
__'%. Lever
Figure 19
AdjustingCarburetor
NOTE: A dirty air cleaner may cause an engine to run
rough too. Make sure that the air cleaner is clean and attached to the carburetor before deciding to adjust the
carburetor.
,_ WARNING: If any 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.
To adjust carburetor, please follow the engine manual.
SECTION9: 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 according to
instructionson page 12.
NOTE: We do not recommend the use of pressure
washers or garden hose to clean your unit. They may cause damage to electric components, spindles, pufleys, bearings or the engine. The use of water will result in shortened life and reduce serviceability.
Lubricate the mower as instructed on page 13. You can fold your mower's handle for convenience of storage by following directions below:
Remove the starter rope from the rope guide; loosen two hand knobs on two 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.
Refer to page 13.
Gasoline
Do not store gasoline from one season to another.
NOTE: Gasoline, stored more than one month, may affect engine performance.
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 or rocksalt.
NOTE: If storing the mower in an unventilated or metal storage shed, make sure to rustproof the equipment
with a light oil or silicone.
Engine
Follow recommendations inthe accompanying
engine manual for off-season storage of the engine.
16
SECTION10: TROUBLE-SHOOTINGGUIDE
Problem PossibleCause
Engine fails to start 1. Blade control handle disengaged 1.
2. Spark plug wire disconnected 2.
3. Fuel tank empty, or stale fuel 3.
4. Blocked fuel line 4.
5. Faulty spark plug 5.
6. Engine flooded 6.
Engine runs erratic 1. Spark plug wire loose 1.
2. Blocked fuel line or stale fuel 2.
3. Vent ingas cap plugged
4. Water or dirt in fuel system
5. Dirty air cleaner
3.
4.
5.
CorrectiveAction
Engage blade control handle
Connect wire to spark plug
Fill up tank with fresh gasoline
Clean fuel line Clean, adjust gap, or replace
Wait a few minutes and start again.
Connect and tighten spark plug wire. Clean fuel line, fill tank with clean,
fresh gasoline.
Clear vent. Drain fuel tank. Refill with fresh fuel.
Clean air cleaner. Refer to engine
manual.
Fill crankcase with proper oil. Clean lawn mower engine.
Adjust gap to.030 inches.
Engine overheats 1. Engine oil level low 1.
2. Air flow restricted 2.
Occasional skip 1. Spark plug gap too close 1.
(hesitates) at high
speed
Idles poorly 1. Spark plug fouled, faulty, or gap too 1. Reset gap to.030 inches or replace
wide spark plug.
2. Dirty air cleaner 2. Clean air cleaner.
Excessive vibration 1. Cutting blade loose or unbalanced 1. Tighten blade and adapter, balance
blade.
2. Bent cutting blade 2. Replace blade.
3. Bent engine crankshaft 3. Contact your nearest service center
Mower will not 1. Engine speed too low 1. Move throttle lever (if so equipped) to mulch grass FAST position.
2. Wet grass 2. Wait until grass is dry to cut.
3. Excessively high grass 3. Mow once at a high cutting height, then mow again at desired height.
4. Dull blade 4. Sharpen or replace blade.
Uneven cut 1. Wheels not in same height position 1. Reposition all wheels at same height.
2. Dull blade 2. Sharpen or replace blade.
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
17
Model445
10
15
11
27
47
58 56
33
70
66 %J9
'1
35
68
37
IMPORTANT: For a proper working machine, use
Factory Approved Parts. V-BELTS are specially designed to engage and disengage safely. A substitute (non OEM) V-Belt can
be dangerous by not disengaging completely.
74
44
18
Model445
Ref, No Pa_ No.
1. 747-2136
2. 747-0824
3. 749-1501
4. 710-1270
5. 746-0883
6. 712-0324
7. 746-0555
8. 749-0928A
9. 746-1146
10. 710-0606
11. 710-1174
12. 720-0284
13. 736-0451
14. 720-0279
15. 710-1205
18. 631-0075B
23. 714-0104
24. 731-1236
25. 732-0700
26. 720-0275
27. 710-0192
28. 732-0677
29. 782-5003
30. 710-1017
31. 732-0678
32. 710-0896
33. 720-0426
34. 736-0105
35. 634-0020
36. 738-0102
37. 731-1426
38. 682-0513 682-0514
39. 14766 14765
40. 732-0706 732-0707
41. 738-0507B
42. 726-0240
43. 782-5007A
44. 712-0798
45. 736-0356
46. 732-1043
47. 782-0080A
Description Lower Bail Handle Blade Control Handle
Upper Handle
Oval C-Sunk Scr. 1/4-26 x 1.31" Control Housing
Hex Lock Nut 1/4-20
Control Cable: 55"
Lower Handle Drive Cable Hex Screw 1/4-20 x 1.5"
Carriage Bolt
Handle Knob
Saddle Washer Wing Nut
Rope Guide Engine Spacer Assembly Hairpin Clip
Rear Trail Shield
Wire: Trail Shield
Knob
Scr. Tr. Mach. #10-24 x 6.380" Torsion Spring LH
Rear Baffle LH
Scr. AB 1/4-14 x 6.625" Torsion Spring RH
Hex Scr. w/Wash. 1/4-14 x 0.62" Knob Bell Washer .375 x .876
Rear Wheel: Disk Bar Gray
Shoulder Screw
Hubcap:Radial Sprocket Yellow Handle Bracket Assembly LH Handle Bracket Assembly RH
Pivot Bar LH Pivot Bar RH
Front Lever RH Front Lever LH
Shoulder Screw Cable Tie
Mulch Plug Hex Nut
Flat Washer Belt Tension Spring
Rear Discharge Deck: 21"
Ref, No
48.
49.
50.
51.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
PaN No,
754*0637 731-1404A 782-5002 618-0657 731-2600 715-04611 736-6331 748-6355 736-6447 782-0511A 782-0512B 682-6599 756-1146A 748-6411 742-6741 712-6324 719-6216 715-6221 717-1762 717-1761 714-6161 736-3613 716-6865 782-7551 716-6162 736-6474 756-04617 716-1257 736-6452 782-5994 756-1166 756-1165 682-0516A 682-0515A 782-7666 716-6666 732-6731 732-0417A 716-1668 682-0512A 682-0511A 716-1248 734-2642 734-2665A
Description
V-Belt Mulch Plug
Front Baffle Transmission Assembly Compl.
Front Drive Cover: Yellow Roll Pin Bell Washer
Bearing Support Wave Washer
Height Adj. Plate LH Height Adj. Plate RH Pivot Plate Assembly Drive Pulley Blade Adapter Mulching Blade w/Star: 21"
Hex Lock Nut Hex Screw Dowel Pin Gear 14T RH Gear 14T LH
Hairpin Clip Flat Washer
Snap Ring Wheel Dust Cap Snap Ring
Washer DD 1.5" O.D. Input Pulley
Hex Bolt Bell Washer Rear Baffle RH
Slev. Spacer LH Slev. Spacer RH Handle Bracket Assembly RH Compl. Handle Bracket Assembly LH Compl.
RD Chute Door Hex Bolt
Torsion Spring Spring Lever
TT Screw Height Adj. Assembly RH Compl.
Height Adj. Assembly LH Compl. Weld Pin
Front Wheel Complete, 8x2 Black Rear Wheel Complete, 8X2
19
Model445
1
4
\
Ref. No.
1.
2.
3.
4.
5.
6.
7.
PaN No. 764-0310 782-5007A 726_0201 711-0996
731-1405 764-0311 190-104-000
Description
Rear Catcher Frame Mulcher Plug
Nut: Spd..3125 ID Rod
Side Discharge Adaptert Front Catcher Frame
Chute Deflector Complete 1
1"If equipped
2O
ShroudChart
Part No. Color 751B281439 Dark Red 751B281440 Black
751B281443 Bright Red
Hardware: 710-1256 (Screw)
Part No. Color 731-1585B Black
Hardware: 710-1274 (Screw)
Part No. Color 7511681311 Black 7511681911 Red
7511682011 Gray
Part No. Color
731-1395A Red
731-1396A Black
731-1397A Gray
Hardware: 710-1256
Part No. Color 731-1586B Black 731-1612A Red
Hardware: 7510042823
Part No. Color 751B281451 Gray
Hardware: 710-1256 (Screw)
B&S Modular Black Shroud (Not Illustrated)
Part No. Description 751B095130 TT Screw
751B2251037 Control Cover 751B281136 Rewind Cover 751B281145 Brake Cover
Part No. Color 731-1402A Yellow
731-1694 Black 731-1695 Silver
731-1934A Charcoal
Hardware: 710-1256 (Screw)
Part No. Color 7510143208 Black
Hardware: 7510042823
Part No. Color 751B281476 Black
751B281777 Yellow
Hardware: 710-1237 (Screw)
21
Notes
22
Notes
23
MANUFACTURER'S LIMITED WARRANTY FOR:
YaRD-MaN)f/
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 LLC warrants this product against defects 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
accessory or attachment not approved by MTD LLC for use with the product(s) covered by this manual will void your
warranty as to any resulting damage.
Normal wear parts or components thereof are subject to
separate terms as follows: All normal wear parts or component failures will be covered on the product for a period
of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered
ONLY IF caused by defects in materials or workmanship of OTHER component parts. Normal wear parts and
components include, but are not limited to: 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
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
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
d. MTD LLC does not extend any warranty for products
sold or exported outside of the United States, its possessions and territories, except those sold through
MTD LLC's authorized channels of export distribution.
e. Parts that are not genuine MTD parts are not covered
by this warranty.
f. Service completed by someone other than an
authorized service dealer is not covered by this warranty.
g. Transportation charges and service calls are not
covered.
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 LLC. 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
LLC 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.
exposure.
MTD LLC,P.O.BOX361131CLEVELAND,OHIO44136-0019; Phone:1-800-800-7310
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