Yard-Man 53AA1A3G401 User Manual

OPERATOR’S MANUAL

Model

53AA1A3G401

IMPORTANT: READ SAFETY RULES AND INSTR UCTIONS CAREFULLY

Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.

MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

PRINTED IN U.S.A.

ECO No. 952

FORM NO.

770-10326A.fm (4/00)

TABLE OF CONTENTS

Content Page

Maintaining Safety.............................................................................................3

Slope Gauge......................................................................................................6

Know Your Z-Series...........................................................................................7

Operating Your Z-Series....................................................................................10

Making Adjustments ..........................................................................................12

Maintaining Your Z-Series .................................................................................14

Maintaining Mower Deck....................................................................................18

Troubleshooting.................................................................................................21

Parts List............................................................................................................22

FINDING MODEL NUMBER

This Operator’s Manual is an important part of your new Z-Series. 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 opening the engine cover and looking down at the battery stand. It is located on the rear face of the battery stand. 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)

MTD PRODUCTS INC

CLEVELAND, OHIO 44136

Copy the model number here:

Copy the serial number here:

CALLING CUSTOMER SUPPORT

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.

For more details about your unit, visit our website at www.yardman.com

SECTION 1: MAINTAINING SAFETY

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: Th e Engine Exhaust from this pr oduct contains chemicals kno wn to the

State of Californi a to cause cancer, birt h defects or other re productive h arm.

DANGER: This machine was built to be operated according to the rules for safe operation in this

manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death.

GENERAL OPERA TION

1. Read, understand, and follow all instructions in the manual and on the machine before starting. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.

2. Only allow responsible individuals familiar with the instructions to operate the machine. Know controls and how to stop the machine quickly.

3. Do not put hands or feet under mower deck or near rotating parts.

4. Clear the area of objects such as rocks, toys, wire, etc., which could be picked up and thrown by the blade. A small object may have been overlooked and could be accidentally thrown by the mower in any direction and cause injury to you or a bystander. To help avoid a thrown objects injury, keep children, bystanders and helpers at least 75 feet from the mower while it is in operation. Always wear safety glasses or safety goggles during operation or while performing an adjustment or repair, to protect eyes from foreign objects. Stop the blade(s) when crossing gravel drives, walks or roads.

5. Be sure the area is clear of other people before mowing. Stop machine if anyone enters the area.

6. Never carry passengers.

7. Disengage blade(s) before shifting into reverse and backing up. Always look down and behind before and while backing.

8. Be aware of the mower and attachment discharge direction and do not point it at anyone. Do not operate the mower without either the entire grass catcher or the chute guard in place.

9. Slow down before turning. Operate the machine smoothly. Avoid erratic operation and excessive speed.

10. Never leave a running machine unattended. Always turn off blade(s), place transmission in neutral, set park brake, stop engine and remove key before dismounting.

11. Turn off blade(s) when not mowing.

12. Stop engine and wait until blade(s) comes to a complete stop before (a) removing grass catcher or unclogging chute, or (b) making any repairs, adjusting or removing any grass or debris.

13. Mow only in daylight or good artificial light.

14. Do not operate the machine while under the influence of alcohol or drugs.

15. Watch for traffic when operating near or crossing roadways.

16. Use extra care when loading or unloading the machine int o a trailer or truck. T his unit shou ld not be driven up or down a ramp onto a trailer or truck under power, because the unit could tip over, causing serious personal injury. The unit must be pushed manually on a ramp to load or unload properly.

17. Never make a cutting height adjustment while engine is running if operator must dismount to do so.

18. Wear sturdy, rough-soled work shoes and close fitting slacks and shirts. Do not wear loose fitting clothes or jewelry. They can be caught in moving parts. Never operate a unit in bare feet, sandals, or sneakers.

19. Check overhead clearance carefully before driving under power lines, wires, bridges or low hanging tree branches, before entering or leaving buildings, or in any other situation where the operator may be struck or pulled from the unit, which could result in serious injury.

20. Disengage all attachment clutches, thoroughly depress the brake pedal, and shift into neutral before attempting to start engine.

21. Your mower is designed to cut normal residential grass of a height no more than 10". Do not attempt to mow through unusually tall, dry grass (e.g., pasture) or piles of dry leaves. Debris may build up on the mower deck or contact the engine exhaust presenting a potential fire hazard.

SLOPE OPERA TI ON

1. Slopes are a major factor related to loss of control and tip-over accidents which can result in severe injury or death. All slopes require extra caution. If you cannot back up the slope or if you feel uneasy on it, do not mow it.

2. For your safety, use the slope gauge included as part of this manual to measure slopes before operating this unit on a sloped or hilly area. If the slope is greater than 15° as shown on the slope gauge, do not operate this unit on that area or serious injury could result.

DO:

1. Mow up and down slopes, not across.

2. Remove ob stacles such as r ocks, limbs, e tc.

3. Watch for holes, ruts or bumps. Uneven terrain could overturn the machine. Tall grass can hide obstacles.

4. Use slow speed. Choose a low enough gear so that you will not have to stop or shift while on the slope. Always keep machine in gear when going down slopes to take advantage of engine braking action.

5. Follow the manufacturer’s recommendations for wheel weights or counterweights to improve stability.

6. Use extra care with grass catchers or other attachments. These can change the stability of the machine.

7. Keep all movement on the slopes slow and gradual. Do not make sudden changes in speed or direction. Rapid engagement or braking could cause the front of the machine to lift and rapidly flip over backwards which could caus e serious in jury.

8. Avoid starting or stopping on a slope. If tires lose traction, disengage the blade(s) and proceed slowly straight down the slope.

DO NOT:

1. Do not turn on slopes unless necessary; then, turn slowly and gradually downhill, if possible.

2. Do not mow near drop-offs, ditches or embankments.The mower could suddenly turn over if a wheel is over the edge of a cliff or ditch, or if an edge caves in.

3. Do not mow on wet grass. Reduced traction could cause sliding.

4. Do not try to stabilize the machine by putting your foot on t he gr ound.

5. Do not use grass catcher on steep slopes.

CHILDREN

Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mo w ing ac tivity. Nev er ass ume th at chi ldren will remain where you last saw them.

1. Keep children out of the mowing area and in watchful care of an adult other than the operator.

2. Be alert and turn machine off if children enter the area.

3. Before and when backing, look behind and down for small children.

4. Never carry children. They may fall off and be seriously injured or interfere with the safe machine operation.

5. Never allow children under 14 years old to operate the machine. Children 14 years and over should only operate machine under close parental supervision and proper instruction.

6. Use extra care when approaching blind corners, shrubs, trees or other objects that may obscure your vision of a child or other hazard.

7. Remove key when machine is unattended to prevent unauthorized operation.

SERVICE

1. Use extreme care in handling gasoline and other fuels. They are extremely flammable and the vapors are ex plosive.

2. Use only an approved container.

3. Never remove fuel cap or add fuel with the engine running. Allow engine to cool at least two minutes before refueling.

4. Replace fuel cap securely and wipe off any spilled fuel before starting the engine as it may cause a fire or explosion.

5. Extinguish all cigarettes, cigars, pipes and other sources of ignition.

6. Never refuel the machine indoors because fuel vapors will acc umulate in the area.

7. Never store the fuel container or machine inside where there is an open flame or spark, such as a gas hot water heater, space heater or furnace.

8. Never run a machine inside a closed area.

9. To reduce fire hazard, keep the machine free of grass, leaves or other debris build-up. Clean up oil or fuel spillage. Allow machine to cool at least 5 minutes before storing.

10. Before cleaning, repairing or inspecting, make certain the blade and all moving parts have stopped. Disconnect the spark plug wire, and keep the wire away from the spark plug to prevent accidental starting.

11. Check the blade and engine mounting bolts at frequent intervals for proper tightness. Also, visually inspect blade for damage (e.g., excessive wear, bent , cracked) . Replac e with bl ade which meets original equipment specifications.

12. Keep all nuts, bolts and screws tight to be sure the equipment is in safe working condition.

13. Never tamper with safety devices. Check their proper operation regularly. Use all guards as instructed in this manual.

14. After striking a foreign object, stop the engine, remove the wire from the spark plug and thoroughly inspect the mower for any damage. Repair the damage before restarting and operating the mower.

15. Grass catcher components are subject to wear, damage and deterioration, which could expose moving parts or allow objects to be thrown. For your safety protection, frequently check components and replace with manufacturer’s recommended parts when necessary.

16. Mower blades are sharp and can cut. Wrap the blade(s) or wear gloves and use extra caution when servicing bla de(s).

17. Check brake operation frequently. Adjust and service as required.

18. Muffler, engine and belt guards become hot during operation and can cause a burn. Allow to cool down before touching.

19. Do not change the engine governor settings or overspeed the engine. Excessive engine speeds are dangerous.

WARNING - YOUR RESPONSIBILITY: Restrict the use o f this power machin e to persons who

read, understand and follow the warnings and instructions in this manual and on the machine.

20. Observe proper disposal laws and regulations. Improper disposal of fluids and materials can harm the environm ent and the ecolo gy.

21. Prior to disposal, determine the proper method to dispose of waste from your local Environmental Protection Agency. Recycling centers are established to properly dispose of materials in an environmentally safe fashion.

22. Use proper containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them. Properly dispose of the containers immediately following the draining of fluids.

23. DO NOT pour oil or other fluids into the ground, down a drain or into a stream, pond, lake or other body of water. Observe Environmental Protection Agency regulations when disposing of oil, fuel, coolant, brake fluid, filters, batteries, tires and other harmful waste.

TO REDUCE THE RISK OF INJURY, DO NOT OPERATE MOWER UNLESS DISCHARGE CHUTE COVER OR GRASS CATCHER IS IN ITS PROPER PLACE.

KEEP HANDS AND FEET AWAY FROM ROTATING PARTS. REMOVE OBJECTS THAT CAN BE THROWN BY THE

BLADE IN ANY DIRECTION. WEAR SAFETY GLASSES. DO NOT MOW WHEN CHILDREN OR OTHERS ARE AROUND.

NEVER CARRY CHILDREN. USE EXTRA CAUTION ON SLOPES. DO NOT MOW SLOPES

GREATER THAN 15.MOW UP AND DOWN, NOT ACROSS.

S30015

READ OPERATOR'S MANUAL. KEEP SAFETY DEVICES WORKING.

AVOID SUDDEN TURNS, USE LOW GEAR.

DANGER

KEEP HANDS AND FEET AWAY. DO NOT OPERATE MOWER UNLESS THIS GUARD OR ENTIRE GRASS CATCHER IS

S30012

ASSEMBLE CHUTE DEFLECTOR TO THIS UNIT BEFORE OPERATING.

IN ITS PROPER PLACE.

S30010

SECTION 2: SLOPE GAUGE

Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes.

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.

Do not mow on inclin es with a s lo pe i n e xces s of 1 5 de gr ees ( a r ise o f approximately 2-1/2 f eet eve r y 1 0 fee t) . A ridi ng m owe r could

overturn and cause serio us injur y. If oper ating a walk-be hind mo wer on suc h a slope, i t is ex tremely diffic ult to maint ain your footing

and you could slip, resulting in serious injury.

A CORNER OF A BUILDING

OR A FENCE POST

SIGHT AND HOLD THIS LEVE L WITH A VERTICAL TREE

A POWER POLE

WARNING

15°

SECTION 3: KNOW YOUR Z-SERIES

NOTE: Reference to right or left hand side of the mower is observed from the operating position.

Lift Handle

Throttle Lever and Choke Lever

Drive Handles

Indicator Panel

Brake Pedal

Parking Brake Pedal

Speed Control Bar

Right Control Panel

Figure 1

WARNING: Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly.

Right Control Pa nel

Ignition/Light Switch

The ignition/light switch is located on the right control panel and it is used to start the engine. Insert key into the ignition switch and turn clockwise to the START position. Release key to the ON position once engine has fired.The ignition switch is also used to operate the headlights when the switch is in the ON/LIGHT position. See Figure 1 and Figure 2.

Hour Meter

The hour meter is located on the right control panel and the meter’s display stays on continuously. The hour value is the number of hours of engine’s operation. Use the hour value to determine when maintenance is required. See Figure 1 and Figure 2.

PTO Switch

Start

Ignition/Light Switch

On/ Light

Off

Hour Meter

Front

Figure 2

Electric PTO (Power Take-Off) Switch

The PTO switch is located on the right control panel and it is used to control the engagement of the cutting blades. When the knob is up, the cutting blades are engaged. When the knob is down, the cutting blades are disengaged. See Figure 1 and Figure 2.

NOTE: The PTO knob must be in the disengaged (OFF) position when st arting the eng ine, when sh ifting into reverse, and when the operator leaves the seat.

Throttle Lever and Choke Lever

The choke lever is located on the left control panel. Activating the choke control closes the choke plate on the carburetor and aids in starting the engine during initial or cold engine start-up. During normal operation the choke lever should be in the OFF position. Push the lever forward to turn choke on and pull choke lever back to turn choke off. See Figure 1 and Figure 3.

The throttle lever is also located on the left control panel and it is used to regulate the engine speed. To get maximum efficiency from cutting, the throttle should be in the FAST position when operating the mower. Push the throttle lever forward for faster engine speed and pull lever back for slower engine speed. See Figure 3.

Front

Throttle Lever

Choke Lever

Seat Adjustment Lever

Figure 4

Lift Handle

The lift handle is located on the right fender and it raises and lowers the cutting height of the mower deck. The height positions are one through seven and the L is the lock position. The lock position is used when removing the mower deck. See Figure 1 and Figure 5.

Height Positions

Figure 5

Button

Fast

OFF

Figure 3

Seat Adjustment Lever

The seat adjustment lever is located beneath the seat and it is used to move the seat forward and backward. See Figure 4.

• Pull up on the seat adjustment lever and push the seat forward or back to the desired position.

• Release the seat adjustment lever so that it locks the seat in place.

WARNING: Do not try to adjust the seat position while operating the Z-Series.

Indicator Pa nel

The indicator panel is located at the top of the control tower. See Figure 1 and Figure 6. When the corresponding light is illuminated it indicates:

• Low Engine Oil: Stop the tractor immediately and check the engine oil level. Continuing to operate with low engine oil can severely damage the engine.

• Battery: The BATTERY indicator light will illuminate any time the ignition key is in the ON position and the engine is not running. If it illuminat es whil e the engi ne is runni ng, th en th e battery is in need of a charge. Refer to the MAINTENANCE section of this manual for the proper battery charging procedure.

• Fuel: The fuel tank is near empty and it needs to be filled with clean and fresh gasoline.

Low Engine Oil

Fuel

Figure 6

Battery

Brake Pedal and P arking Brake Pedal

The brake pedal is located on the lower left side of the control tower and it is used to engage the brake in order to slow down or stop the unit. It also is used to engage the parking brake. See Figure 1 and Figure 7.

Parking Brake Pedal

The parking brake pedal is located on the lower right side of the control tower. Engage the parking brake when the unit is not in use. See Figure 7.

• Push down on the brake pedal and hold.

• Push down on the parking brake pedal and hold.

• Release br ake pedal to l ock pa rking brake

engagement.

• To release parking brake pedal, press down on brake pedal and release.

the neutral position so the unit will not move. If the drive handles are not placed in the neutral position, the ZSeries may creep. See Figure 1 and Figure 7.

When the engine is running, the unit will move in accordance with the drive handles (push, pull, or both) as they are moved from the neutral position. When the drive handles are released, they immediately return towards the neutral position as the unit slows to a stop position (while the engine continues to run).

The rear wheels move and steer the unit. The left drive handle controls the left rear wheel and the right drive handle controls the right rear wheel. When a drive handle is moved forward, the respective wheel turns forward. When a drive handle is moved backward, the respective wheel turns in reverse.

Each drive handle has a range in the forward position (push) and the reverse position (pull). The drive handles can be moved together in the same direction or independent of each other in any combination (i.e. left push, right pull). refer also to the Quick Reference OPERATION section. See Figure 8.

Speed Control Bar

Drive Handles

Wing Nut

Drive Handles

Speed Control Bar

Brake Pedal

Figure 7

Parking Brake Pedal

Drive Handles

The drive handles (left and right) are located at the top of the control tower. The drive handles are used to move, steer, and stop the Z-Series. The drive handles will return toward the neutral position when released; however, the driver should place the drive handles in

Figure 8

Speed Control Bar

The speed control bar is connected to the console with two wing nuts and it is used as a grab bar for entry or exit from the tractor and allows for pre-set maximum travel speed. See Figure 1 and Figure 8.

• Loosen the wing nuts located on either side of the plastic console.

• Rotate speed control bar to desire location.

• Tighten wing nut to secure speed control bar.

NOTE: Limit loosening the wing nuts to 1 1/2 turns. This will insure proper a ssembly o f the screw not visible on the other side of the plastic console.

The speed control bar also aids the drive handles in making “perfect U-turns”. To move forward grasp both drive handles and the speed control bar at the same time, then release the left drive handle to turn left and

then grasp it again to continue straight ahead or release the right drive handle to turn right. Refer also to the Quick Reference Chart located in the OPERATION Section.

SECTION 4: OPERATING YOUR Z-SERIES

WARNING: Read, understand, and follow all instructions and warnings on the machine and in this manual before operating.

Gas and Oil Fill-Up

Service the engine with gasoline and oil as instructed in the separate engine manual packed with your mower. Read instructions carefully.

IMPORT ANT :

MUST check the oil level before operating. Be careful not to overfill. Overfilling with oil may cause the engine to smoke. This will result in poor engine performance and could cause permanent engine damage.

Your unit is shipped with oil; however, you

WARNING: Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes, and other sources of ignition.

Operating Guidelines

• Study this manual carefully for it has been provided to help you safely operate and maintain this unit and familiarize yourself with all instruments and controls.

• NO RIDERS! Keep c hildr en an d pet s awa y from unit during operation.

• Always look down and behind before and while backing up.

• Keep safety devices (guards, shields, and switches) in place and working.

• Use the SL OPE GA UGE to det ermine safe operating areas. Go up and down slopes, not across.

• Before leaving operator’s position, disengage the PTO (down), engage the parking brake and turn ignition switch to OFF.

IMPORT ANT :

pressure washer or garden hose to clean your unit. They may cause damage to electric components, spindles, pulleys, bearings, or the engine.

We do not recommend the use of a

Stopping The Z-Series

• Bring the Z-Series to a stop by pulling the drive handles to the neutral position.

• Disengage the PTO (down).

• Push down on the brake pedal and hold.

• Push down on the parking brake to lock

engagement.

• Turn the ignition to the OFF position.

• Remove the ke y.

WARNING: Always remove the key from the ignition switch to avoid accidental starting.

Safety interlock Switches

• The engine will not crank or start without the brake pedal fully engaged and the PTO disengaged (down).

• If the operator leaves the unit with the PTO in the Run position or the parking brake disengaged, it automatically shuts the engine off.

Starting Engine

• Insert the key into the ignition switch.

• Move the choke lever to the full choke position (all

the way toward the front of the unit).

• Move the throttle lever to the FAST (Rabbit) position (all the wa y tow ard t he fr ont o f the unit) .

NOTE: Less choking may be required due to engine temperature variance. If the engine is warm, choking may not be necessary.

• Push the PTO (power take-off) switch to OFF.

• Fully depress the brake pedal.

• Turn the ignition switch to the START position and

release it as soon as the engine starts. It will return to the ON position.

• Move the choke lever to the OFF position (rearward).

NOTE: If starting problems are encountered, refer to the TROUBLESHOOTING section.

Driving the Z-Series

• Set the throttle to the fastest position (rabbit).

• Release the parking brake by depressing the

parking brake pedal.

• Gradually move the drive handles in the desired direction, referring to the Quick Reference Chart.

NOTE: The Z-Series spe ed is bas ed on th e posi tion o f the drive handles. Push the handles forward to increase speed and back toward neutral for slower speeds.

Pushing Your Unit

To push your unit you will have to first relieve the hydrostatic pumps.

Driving On Slopes

Before operating the Z-Series on any slope:

• Use the SLOPE GAUGE to determine if the slope is safe for operation.

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). The tractor could overturn and cause serious injury.

• If safe for operation, walk the slope and look for hazards such as rocks, mounds, ruts, stumps, or other irregularities.

• After removing debris and identifying irregularities of the slope, back the Z-Series up the steepest slope you intend to work. If it cannot negotiate the slope in reverse, the slope is too steep.

Use the following guidelines when operating on a slope:

• Drive UP and DOWN slopes. Never drive across slopes.

• Avoid turns when driving on a slope. If you must turn, turn down the slope. Turning up a slope greatly increases the chance of roll over.

• Avoid stopping when driving on a slope. If you must stop, start slowly and smoothly to reduce the chance of flipping the Z-Series over backwards.

WARNING: The hydraulic relief levers are near engine parts that can be hot. To avoid injury wait until engine parts have cooled before disengaging.

• Position the Z-Series on a flat and level surface and engage the parking brake.

• Remove the hydrau lic re lief l evers from t he loc k position. There is a lever for the right and left hydraulic pump.

• Slide the levers into the slots to relieve the hydraulic pumps. See Figure 9.

• Disengage parking brake and push unit.

Relief Lever

Lock Position (Unit will not roll)

Neutral Position (Unit will roll)

Left Relief Lever Shown

Mowing

• For best results it is recommended that the first two laps be cut with the discharge thrown towards the center. After the first two laps, reverse the direction to throw the discharge to the outside for the balance of cutting. This will give a better appearance to the lawn.

• Do not cut grass too short. Short grass invites weed growth and yellows quickly in dry weather.

• Mowing should always be done with the engine at full throttle.

• Do not mow at hi gh grou nd speed , espec ially if mulching or bagging.

• Under heavier conditions, it may be necessary to go back over the cut area a second time to get a clean cut.

• Do not attempt to mow heavy brush, weeds, or extremely tall grass. Your Z-Series is designed to mow lawns, not clear brush.

• Keep the blades sharp and replace the blades when worn. Refer to the MAINTENANCE section of the manual for proper blade sharpening instructions.

Figure 9

Quick Reference Chart

The Z-Series can turn with a zero radius. The Z-Series uses the rear tires to turn. When turning with a zero radius, the rear tires are used as the pivot point. A conventional tractor can make a circle but it needs a turning radius, usually based on the distance between the front and rear wheels. With a shorter overall length and a zero turn radius, the Z-Series has an excellent maneuverability.

The Z-Series does not have a steering wheel, instead drive handles are used to steer and to move the unit. When the drive handles are in the full positions (pull or push), the wheels turn at full speed based on the throttle setting. Positions between neutral and full are proportional across the range based on the throttle setting. The quick reference chart indicates the direction the Z-Series will move based on the position of the drive handles. See Figure 10.

Release Handles = Neutral / Stop

Pull Handles Equal Back = Straight Reverse

Push Handles Equal Forward = Straight Forward

Full Right Forward And Full Left Back = Zero Turn Left

Right Forward And Left Neutral = Left T u rn

Full Right Back and Full Left Forward = Zero Turn Right

Right Neutral And Left Back = Reverse Left

Right Neutral And Left Forward = Right Turn

Right Back And Left Neutral = Reverse Right

Figure 10

SECTION 5: MAKING ADJUSTMENTS

Adjusting the Mower Deck Height

• To push or pull the lift lever, depress and hold the button. Refer to Figure 5.

• Move the handle up/down to the desired location.

• Release bu tton at th e desi red posit ion.

Adjusting the Seat Position

• Lift the seat adjustment lever. Refer to Figure 4.

• Slide the seat either forward or back to the desired

location.

• Lock the seat in position by releasing the seat adjustment lever.

Checking the Brake Adjustment

• Position the Z-Series on a level surface and move the throttle lever to the slowest position (turtle).

• Stop the engine, remove the key from the ignition, and engage the parking brake.

• Release both hydraulic relief levers.

• From the rear push on the frame and try to move

the Z-Series.

If you can move it, then the brake force must be increased. Go to AD JUSTING BRAKE FORC E.

If you can not move it, the go on to next step.

• Release the parking brake and try again to move the Z-Series by pushing.

If you can not move it, then the brake force must be decreased. Go to ADJUSTING BRAKE FORCE.

If you can move it, then you are done (no adjustment necessary).

Adjusting Brake Force

• Place the Z-Series on level surface without the brake engaged and place blocks behind the wheels.

• Turn the engine OFF and remove the key from the ignition.

• From underneath the Z-Series directly behind the caster wheel pivot bar, locate the brake rods. There is one on the right and one on the left. See Figure 11.

• The factory sets a 1/16” gap minimum between the brake arm and frame of the Z-Series. More adjustment may be necessary

If incre ased forc e is n eeded , then rot ate br ake rods clockwise.

If decreased force is needed, then rotate brake rods counterclockwise.

• Repeat process on the other brake rod.

• Check the operation of the brakes before operating.

If the adjustment does not help, see your dealer.

Frame

Measure Gap

Brake Arm

Figure 11

Steering Adjustment

• Remove the ignition key from ignition switch and detach the bottom of the rubber boot cover on the drive handles.

• Slide the boot cover all the way up (toward the drive handles) to access the drive handle bolts.

• Remove both bolts securing the drive handles and remove the drive handles and the rubber boot.

Brake Rod

• Remove the four bolts securing the retaining plate to the control tower cover.

• Pull up on the cover and slide up and over the control tower.

• Remove both safety switches from their respective holders by squeezing together on the retaining clips while gently pushing upward until the switches clear the bracket s.

• Remove bolts that secure linkage to upper control handles and lower control arms. The shock absorbers should remain connected to linkage. See Figure 12.

• With quarter inch by seven inch pins still installed in the top and bottom linkage arms, loosen the jam nuts at both the front and rear ends of linkage that runs from bottom linkage arms to hydrostatic pumps. See Figure 13.

Hex Bolt

Jam Nuts

Hex Bolt

Jam Nuts

Alignment Holes

Figure 12

• Insert quarter inch by seven inch pin or equivalent through the top and bottom alignment holes of the control arms to secure arms at positive neutral.

• With the shock absorber still bolted to linkage, loosen the jam nuts at both ends of the linkage so the alignaball adjustment can be made.

• Adjust the alignaball until retaining bolts slips through alignaball and hole in arm with little effort.

• Re-install bolts, washers, and nuts in all four ends of linkage. Tighten jam nuts against alignaball ends to keep ends from turning.

• Lift rear wheels off ground using floor jack or other suitable lifting device.

Alignment Holes

Alignaball

Jam Nut

Spherical Rods

Figure 13

• Set parking brake and start the engine (set throttle at full speed). Make sure that the PTO is OFF.

• Rotate rods (lengthen or shorten) to bring each hydrostat to neutral.

NOTE: The control linkage going to the hydrostatic pump has left-handed thr eads at the pump and righthanded threads at the tower.

• Tighten the jam nuts earlier loosened and reassembled the safety switches.

• Remove quarter inch by seven inch pins from top and bottom holes.

• Reassemble body panels and drive handle assembly.

• Make sure that all hardware is tightened.

SECTION 6: MAINTAINING YOUR Z-SERIES

WARNING: Before performing any maintenance or repairs, stop the engine, disconnect the spark plug wire, and ground against the engine to prevent unintended starting.

Lubrication

Engine

Lubricate the engine with motor oil as instructed in the separate engine manual packed with your unit.

Control Tower

There are two grease fittings that are located on the right side of tower. Lubricate both with a grease gun at least once a season. The control tower cover must be removed to lubricate. See Figure 14.

Caster Assembly / Wheels

There are three grease fittings, one on each wheel spindle and one in middle of caster assembly. The caster wheels have one grease fitting on each wheel. Lubricate these with a grease gun at least once a season. See Figure 14.

Deck Lift Pivot / Lift Handle

The deck lift pivot assembly has grease fittings on each end and the lift handle has a grease fitting on its lower side. Lubricate with a grease gun at least once a season. See Figure 14.

Mower Deck

The mower deck m ay hav e grea se fi ttin gs loc ated on the idler assembly or the spindle assemblies.

Deck Lift Pivot Grease Fittings

Lift Handle Grease Fitting

Pivot Bar Grease Fitting

Caster Wheel Spindle Grease Fitting

Caster Wheel Grease Fitting

Mower Deck Grease Fittings

Control Tower Grease Fittings

Figure 14

Engine

Refer to the separate engine manual for engine maintenance instructions.

Service air cleaner every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions. To service the air cleaner, refer to the separate engine manual.

The spark plug(s) should be cleaned and the gap reset once a season. Spark plug replacement is recommended at the start of each mowing season. Check engine manual for correct plug type and gap specifications.

Fuel Tank

The fuel tank cap is located on the left rear fender panel. Remove the fuel cap by unscrewing and fill the gas tank from this point.

Checking Hydraulic Oil

Check the oil level of hydraulic units only when the engine is OFF.

During initial break-in (first five hours of operation), check oil before each use and then check after every 50 hours of operation.

Hydraulic Fill Plug/Dipstick

Hydraulic Fill Point

Figure 15

• Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankca se. Se e Figur e 15.

• Remove the hydraulic fill plug/dipstick and read the level:

If hydraulic oil level is inside operating range, then do nothing.

If hydraulic oil level is below operating range, the add hydraulic oil before operating. Also check for leaks.

If hydraulic oil level is above operating range, then drain excess oil before operating.

• Reinstall the dipstick completely into the fill tube.

Adding Hydraulic Oil

WARNING: Never overfill the hydraulic units. Damage can result if the oil level is not within the operating range. When adding hydraulic oil, do so in small quantities and recheck the oil level before adding more.

• Place the Z-Series on a level surface and engage the parking brake.

• Stop the engine and remove the key from the ignition switch.

• Clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase.

• Remove the hydrau lic fi ll pl ug an d inser t a cle an funnel into the hydraulic fill point. See Figure 15.

• Pour proper amount of hydraulic oil level, insert the dipstick, and check the hydraulic oil level.

Draining Hydraulic Oil

• Place the Z-Series on a level surface and engage the parking brake.

• Stop the engine and remove the key from the ignition switch.

• Remove the mower deck. See Removing the Mower Deck section.

• Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase.

• Remove hydraulic fill plug/dipstick.

• Place a suitable container (at least 2 gallon) under

the hydr aulic oil filt er.

• Remove the hydraulic filter to allow hydraulic oil to drain. See Figure 16.

• Place a small pan under the skid plate and drain oil from both left and right axles.

• Replace bot h axle drai n plugs and install ne w hydraulic oil filter.

• Add proper amount of hydraulic oil to reservoir.

• Run and check oil leve l.

Hydraulic Oil Filter

Left Transmission Drain Plug

Figure 16

Replaci ng The He ad Lamp B ulb

• Detach the bottom of the rubber boot cover on the drive handles.

• Slide the boot cover all the way up (toward the drive handles) to access the drive handle bolts.

• Remove drive handle bolts, drive handles, and rubber boot.

• Remove the four bolts securing the retaining plate to the control tower cover.

• Pull up on the control tower cover and slide up and over the control tower.

• Locate the rear of the light fixture where the wire attaches. See Figure 17.

• Remove the wire from the light bulb assembly and squeeze the tab on the connector that attaches the wire to the light bulb assembly.

• Pull the wire from the light bulb assembly and turn the light bulb assembly counterclockwise to release it from the light fixture.

• Carefully pull the light bulb out of the light fixture and insert the replacement light bulb into the light fixture.

• Turn the light bulb assembly clockwise until it locks in place and carefully insert the connector into the light bulb assembly.

• Replace the control tower cover and drive handle assemblies.

Headlight Mounting Bracket

Charging

If the unit has not been in use for an extended period of time, charge the battery with an automotive-type 12-volt charger for a minimum of one hour at six amps. Never store battery without a full charge.

Tires

The two fr ont wh eels are ca ster w heels that swivel to accommodate the direction of the Z-Series. The two rear wheels are used to propel the Z-Series in the direction of input from the drive handles. Inflation pressure of the tires is important for stability while the ZSeries is in operation. See tire side wall for proper inflatio n pressu re.

Connector

Light Bulb

Figure 17

Changing The Fuse

• The fuse can be located on a wiring harness in a protective cover between the engine and the battery.

• Remove the old fuse and replace with same rated fuse.

Battery

The battery is sealed and is maintenance free. Acid levels can not be checked.

• Always keep the battery, cables, and terminals clean and free of corrosive build-up.

• After cleaning the battery and terminals, apply a light coat of petroleum jelly or grease to the terminals and over the positive terminal boot.

• Always keep the boot positioned over the positive terminal to prevent shorting.

IMPORT ANT :

disconnect the NEGATIVE (Black) wire from it’s terminal first, follow by the POSITIVE (Red) wire. When reinstalling the battery, always connect the POSITIVE (Red) wire to it’s terminal first and the NEGATIVE (Black) wire second. Be certain that the wires are connected to the correct terminals.

If removing the battery for any reason,

WARNING: Periodical ly inspect the blade adapter for cracks , espec ially if yo u st rike a foreign object. Replace when necessary.

Removing The Drive Be lt

Visually inspect the drive belt for wear and cracking. If the drive belt shows signs of glazing, fraying, cracking or excess wear it needs to be replaced. Follow these steps to replace the drive belt.

• Set parking brake and remove the mower deck belt from the engine pulley. See Removing the Mower in MOWER DECK section.

• Locate the drive belt and roll drive belt down off the left drive pulley.

• Then roll the drive belt down off the right drive pulley and remove the drive belt from the engine pulley.

• Carefully pull the belt up and over the right hydrostatic cooling fan and then lift up and over the left hydrostatic cooling fan.

• Pull the d rive be lt ou t of t he un it.

Installing Drive Belt

• Set the parking brake and insert drive belt up and over the left and right hydostatic cooling fans. Do not place the belt into the drive pulley groves at this time.

• Place the drive belt into the top groove of the engine pulley and route the belt to the inside of the idler pulley.

• Roll the belt up into the groove of the left drive pulley and roll the belt up into the groove of the right drive pulley.

• Make sure that th e belt is sea ted in all pu lley grooves and release the parking brake.

• The drive belt should be tightened by the idler pulley if the belt was installed correctly.

• Check the belt for correct routing and reinsta ll the mower deck.

SECTION 7: MAINTAINING MOWER DECK

Checking The Level Of T he Mower Deck

Side to Side

• Position the Z-Series on a hard and level surface and place the PTO switch in the OFF position.

• Engage the par king brak e and tur n the ignit ion switch to the OFF position and remove key.

• Remove spark plug wire(s) from the spark plug(s).

• Raise the lift handle to the highest setting (7).

• Position the mower blades so they run

perpendicular to the Z-Series. See Figure 18.

Measurement

Figure 18

• Measure the distance from the outside of the left blade tip to the ground and the distance from the outside of the right blade tip to the ground. Both measurements taken should be within 1/16”. If they are not, proceed to the next step.

• Remove the shoulder screw that holds the lift link to the hanger bracket on the side to be adjusted. See Figure 19.

• Turn the adjustable link the appropriate distance up or down. Every 1/2 turn equals 1/32”.

Blade

Front To Rear

• Position the Z-Se ries o n a ha rd le vel su rface and place the PTO switch in the OFF position.

• Engage the par king brak e and tur n the igni tion switch to the OFF position and remove the key.

• Remove spark plug wire(s) from the spark plug(s).

• Raise the lift handle to the highest setting (7).

• Position the mower blades so the ends of each

blade point to the front and to the rear of the ZSeries. Se e Figur e 20.

Rear Edge

Figure 20

• Measure the distance from the front of the blade tip to the ground and the rear of the blade tip to the ground. The front edge of each blade should be lower than its back edge by 1/8” to 1/4”. Determine the appropriate distance necessary for proper adjustment and proceed, if necessary, to the next step.

• Lower the deck to the lowest position.

• Loosen the rear jam nuts on the front lift rods and

turn the front lock nuts clockwise to raise the front of the mower deck or counterclockwise to lower the front of the mower deck. See Figure 21.

• Raise the deck to the highest position. Recheck the blade measurements and repeat steps, if necessary.

• Tighten the rear jam nuts after adjustments of the front lift rods are completed.

Front Edge

Adjustable Link

Lift Link

Shoulder Screw

Support Pin

Hanger Bracket

Figure 19

Front Lift Rods

Lock Nut

Jam Nut

Figure 21

Removing The Mower Deck

WARNING: Do not remove deck immediately after operating the tractor. Allow the engine and other moving parts ample time to cool down.

• Position t he Z-Se ries on a hard fl at su rfac e and engage the parking brake.

• Move the lift handle to the L position.

• Remove belt covers by removing hex nuts that hold

on the covers. See Figure 22.

Belt Covers

Hex Nut

Tension Bar

Figure 22

• Release the tension bar by pushing bar out of the bracket.

• Lift the tension bar over the bracket and allow the bar to rest on the mower deck.

• Pull support pin out to release hanger bracket from lift link and turn support pin until it is against outside of hanger bracket. See Figure 23.

• Turn the pulley counterclockwise until the belt is completely off the pulley.

• Locate the clutch pulley in the rear of the tractor below the muffler to remove the belt from the pulley. See Figure 24.

Belt

Clutch Pulley

Figure 24

• From the front of the Z-Series, pull the mower deck towards you to release the retaining arms from the mower deck.

• Lift and hold up the retaining arms.

• Move the mower deck toward the rear of the tractor

until the front lift rods clear the mower deck.

• From the right side, pull the mower deck out from under the tractor. See Figure 25.

Adjustable Link

Lift Link

Shoulder Screw

Support Pin

Hanger Bracket

Figure 23

• Move the lift handle to position 7 (all the way up).

• Remove the belt from the outside pulley of the

mower deck by pulling and holding the belt so part of it is outside the pulley.

42” Deck

Retaining Bracket and Arm

Figure 25

Installing Mower Deck Belt

• Remove the mower deck and the old mower deck drive belt from the mower deck.

• Install and route the new belt according to the routing diagram. See Figure 26.

• Install the mower deck. Refer to Installing The Mower Deck.

Belt

Mower Blades

WARNING: The mower blades are sharp and can cause severe injury. Always protect hands by wearing heavy leather work gloves to grasp blades.

• Secure the mower bl ade by p uttin g a piec e of wo od between the blade and the housing. See Figure 28.

• Remove the hex flange nut that secures the blade to the spindle assembly.

To Clutch Pulley

Figure 26

Installing The Mower Deck

• Slide the mower deck under the Z-Series, making sure belt cover s are remove d.

• From the rear, reach under the muffler cover and grasp the belt from the mower deck and bring it between the hydraulic units.

• Bring the belt between the pulley and the clutch. Do not put the belt into the pulley grove yet.

• From the front of the Z-Series, hold both front lift rods up and sli de the mowe r deck fo rward unt il the lift rods go into the bracket.

• Slide the mower deck backwards to insert the front lift rods into the brackets. See Figure 25.

• Align the mower deck so the lift link aligns with the hanger bracket on the mower deck. See Figure 27.

Adjustable Link

Lift Link

Shoulder Screw

Support Pin

Hanger Bracket

Block Of Wood

Blade

Figure 28

It is extremely important that each cutting blade edge be ground equally to maintain proper blade balance. An unbalanced blade will cause excessive vibration when rotating at high speeds, may cause damage to the unit, or result in personal injury. The blade can be tested by balancing it on a round shaft screwdriver. Grind metal from the heavy side until it balances evenly.

When replacing the blade, be sure to install the blade with the side of the blade marked “Bottom” (or with a part number stamped in it) facing the ground when the mower is in the operating position.

IMPORT ANT :

Tighten the hex nut that secures mower

blade to spindle to 100 ft-lbs.

WARNING: Periodical ly inspect the blade adapter for cracks , espec ially if yo u st rike a foreign object. Replace when necessary.

Figure 27

• Pull the support pin out and align with holes in hanger bracket and lift link.

• Release the support pin so that it goes through both holes to secure deck. Repeat these steps for other side of the deck.

• From the rear, attach the belt around the clutch pulley.

• Engage tension bar by moving it into the bracket to maintain belt tension and replace belt covers.

SECTION 8: TROUBLESHOOTING

Trouble Possible Cause(s) Corrective Action

Engine fails to start PTO switch engaged.

Brake pedal not engaged. Spark plug wire disconnected. Throttle control lever not in correct starting position. Fuel tank empty, or stale fuel.

Blocked fuel line. Faulty spark plug. Engine flooded.

Engine runs erratic Unit running in START position.

Choke lever toward ON position. Spark pl ug wire loose. Blocked fuel line or stale fuel.

Vent in gas cap plugged. Water or dirt in fuel system. Dirty air cleaner.

Engine overheats Engine oil level low.

Air flow restricted. Occasional ski p (h esi tates) at high speed Idles poorly Spark plug fouled, faulty or gap too

Excessive vibration Cutting blade loose or unbalanced. Mower will not mulch grass Engine speed too low.

Uneven cut Wheels not positioned correctly.

Spark plug gap too close. Adjust gap to .030”.

wide.

Dirty air cleaner.

Bent cutting blade.

Wet grass.

Excessively high grass.

Dull blade.

Uneven tire pressure.

Disengage PTO switch. Engage brake pedal. Connect wire to spark plug. Move throttle lever to FAST or START position. Fill tank with clean, fresh (not over 30 days) gasoline. Clean fuel line. Clean, adjust gap or replace. Crank engine with throttle in FAST position. Move throttle lever to FAST position. Push choke lever to OFF position. Connect and tighten spark plug wire. Clean fuel line; fill tank with clean, fresh (n ot over 30 days) gasoline. Clear vent. Drain fuel tank. Refill with fresh fuel. Clean air cleaner. Fill crankcase with proper oil. Remove blower housing and clean.

Reset gap to .030” or replace spark plug. Clean air cleaner.

Tighten blade and adapter. Balance blade. Replace blade. Set throttle at full throttle. Do not mow when grass is wet; wait until later to cut. Mow once at a high cutting height, then mow again at desired height or make a narrower cutting swath (1/2 width). Sharpen or replace blade. Place all four wheels in same height position. Sharpen or replace blade. Equal tire pressure in all four wheels.

Model 53AA1A3G401

REF.

NO.

1. 731-3326 Engine Cover

2. 731-3263 Control Handle

3. 710-0451 Carriage Bolt 5/16-18 x .750

4. 735-0251 Foot Pad

5. 731-3185 Bellow

6. 712-0431 Flange Lock Nut 3/8-16

7. 703-2807B Mounting Bracket

8. 710-3168 Carriage Bolt 3/8-16

9. 749-3081 Cruise Control Handle

10. 731-3128A Lens

11. 710-0642 Hex Washer Screw 1/4-20 x .750

12. 703-2648 Bellow Retainer Bracket

13. 738-0754 Shoulder Screw .437 x .54

14. 731-3325 Seat Base

15. 703-3288 Cruise Control Mounting Bracket

16. 712-3004A Flange Lock Nut 5/16-18

17. 710-0276 Carriage Screw 5/16-18 x 1 .0

18. 736-0242 Bell Washer .340 ID x .872 OD

19. 720-0241 Wing Nut Knob 5/16-18

20. 726-0289 Plug

21. 731-3329 Console

22. 738-3163A Shoulder Screw .75 x .245 3/8-16

23. 736-3039 Flat Washer .406 x 1.5

24. 703-2928 Body Hinge

25. 710-0376 Hex Cap Screw 5/16-18 x 1.0

26. 736-0226 Flat Washer .474 ID x .879 OD

PART

NO. DESCRIPTION

REF.

NO.

27. 738-0296 Shoulder Screw .437 x .286

28. 712-0185 Speed U-Type Nut 1/4-20

29. 732-0830 Spring Clip

30. 720-0302 Lever

31. 731-3195A Control Panel LH

32. 726-3047 Push Nut

33. 603-0424 Control Panel Asm LH

34. 723-3042 Snap Bushing

35. 712-0453 Retainer Nut 1/4-20

36. 747-3303 Support Rod

37. 726-0106 Speed Cap 1/4

38. 710-3015 Hex Cap Screw 1/4-20 x .75

39. 603-0643 Spring Clip Bracket Asm

40. 712-3027 Hex Flange Nut 1/4-20

41. 749-3082 Engine Support Tube

42. 710-3180 Hex Cap Screw 5/19-18 x 1.75

43. 750-3200 Spacer

44. 710-0946 Machine Screw 1/4-20 x .625

45. 731-3327 Body

46. 725-3233 Electric PTO Knob

47. 703-1341B Key

48. 603-0425 Control Panel Asm RH

49. 731-3196 Control Panel Cover RH

50. 603-0578 Body Mounting Plate Asm

51. 731-3328 Front Body Floor

52. 703-3078 Support Latch Bracket

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 603-0649 Parking Brake Shift Ass’y

2. 714-3004 Cotter Pin

3. 710-3178 Carriage Bolt 3/8-16 x .75

4. 741-0324 Hex Flange Bearing .506 ID x .590

5. 703-3400 Brake Mounti ng Bracket

6. 747-3404 Connecting Brake Rod

7. 714-0104 Cotter Pin

8. 710-0134 Carriage Screw 1/4-20 x .62

9. 712-3027 Hex Flange Lock Nut 1/4-20

10. 703-3405 Support Plate

11. 714-0101 Cotter Pin

12. 703-2857 Retaining R od Bra cket

13. 732-0827 Torsion Spring 5/16

14. 747-3397 Parking Brake Retaining Rod

15. 735-0664 Parking Brake Pad

16. 603-0683 Brak e R od Ass’y

17. 711-3357 Ferrule

18. 712-0314 Jam Nut 1/4-28

19. 736-0258 Flat Washer .385 ID x 1.0 OD

20. 712-0431 Flange Lock Nut 3/8-16

21. 747-3266A Bracket Rod

22. 732-0463 Extension Spring

23. 732-0800 Extension Spring

24. 747-3284 Release Pump Rod RH

25. 747-3363 Release Pump Rod LH

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 603-0340 Bellcrank Ass’y Upper LH

2. 603-0341 Bellcrank Ass’y Upper RH

3. 603-0342 Bellcrank Ass’y Lower LH

4. 603-0343 Bellcrank Ass’y Lower RH

5. 603-0647 Support Ass’y Tower

6. 603-0410 Rod Ass’y Control RH

7. 603-0411 Rod Ass’y Control LH

8. 710-0216 Hex Cap Screw 3/8-16 x .75

9. 710-3005 Hex Cap Screw 3/8-16 x 1.25

10. 710-3178 Carriage Bolt 3/8-16 x .75

11. 711-1111 Control Shaft

12. 711-1124 Pin

13. 712-0312 Hex Jam Nut LH 3/8-24

14. 712-0365 Hex Center Lock Nut

15. 712-0431 Hex Flange Lock Nut 3/8-16

16. 712-0453 Retainer 1/4-20

17. 712-0711 Hex Jam Nut 3/8-24

18. 712-3001 Hex Jam Nut 3/8-24

19. 712-3004A Hex Flange Lock Nut 5/16-18

PART

NO. DESCRIPTION

REF.

NO.

20. 714-0104 Cotter Pin

21. 723-0420 Spherical Rod End RH 3/8-24

22. 723-0421 Spherical Rod End LH 3/8-24

23. 727-3113 Damper Cylinder

24. 732-3084 Spring Compression

25. 736-0169 Lock Washer 3/8

26. 736-0539 Thrust Washer .625 ID x 1.12 OD

27. 736-3004 Flat Washer .406 ID x .875 OD

28. 737-0280 Grease Fitti ng

29. 737-3072 Grease Fitti ng w/Tube

30. 737-3073 Adapter 1/4-20

31. 738-0296 Shoulder Bolt .437 Dia. x .268

32. 738-3153 Shoulder Bolt

33. 741-3063 Sleeve Bearing

34. 747-3281 Control Rod LH 31-5/8

35. 747-3282 Control Rod RH 35-3/8

36. 736-0300 Flat Washer .406 ID x .87 OD

37. 703-3405 Support Plate

PART

NO. DESCRIPTION

Model 53AA1A3G401

62 65

Model 53AA1A3G401

REF.

NO.

1. 737-3069 Pipe Plug

2. 737-3070A Pipe Dipstick

3. 603-0639 Hydraulic Tank Assembly

4. 727-3116 Connection Fitting

5. 721-0223 Seal

6. 738-0940 Drain Plug

7. 727-3120 Inlet Tube LH

8. 727-3155 Tee Fitting

9. 727-3154 Outlet Hose RH

10. 727-3121 Inlet Tube RH

11. 727-3153 Outlet Hose LH

12. 710-0216 Hex Cap Screw 3/8-16 x .75

13. 712-0455 Retainer Nut 3/8-16

14. 747-3360A Belt Retainer Rod RH

15. 710-0378 Hex Cap Screw 5/16-18 x 2.5

16. 736-3089 Flat Washer 5/16

17. 723-3071 Filter Element

18. 731-1449A Fan Blade

19. 712-0333 Hex Nut 1/2-20

20. 703-3168 Mounting Pulley Bracket

21. 756-0625 Roller Cable

22. 738-0924 Hex Shoulder Screw 1/4-28 x .375

23. 703-3169 Retainer Cable Bracket

24. 712-0117 Loc k Nut 1/4-28

25. 618-3165 Complete Transmission Assembly LH

26. 712-3050 Lug Nut

27. 710-0347 Hex Cap Screw 3/8-16 x 1.75

28. 736-0258 Flat Washer .385 ID x 1.0 OD

29. 756-0627 Flat Idler Pulley 3.5 OD

30. 703-3174 Mounting Bracket Cable

31. 712-3019 Hex Nut 7/16-14

32. 736-0171 Loc k Washer 7/16

33. 736-3015 Flat Washer .469 ID x .875 OD

34. 603-0377A Idler Arm Assembly

PART

NO. DESCRIPTION

REF.

NO.

35. 603-0102 Shoulder Screw

36. 732-0478 Extension Spring 6.12 Lg

37. 712-0431 Flange Lock Nut 3/8-16

38. 712-3027 Lock Nut 1/4-20

39. 703-3380 Declutching Cable Bracket

40. 736-0119 Lock Washer 5/16

41. 738-0704 Shoulder Screw

42. 710-3008 Hex Cap Screw 5/16-18 x .75

43. 710-3011 Hex Cap Screw 3/8-16 x 2.25

44. 603-0362 Idler Pulley Assembly 5.0”

45. 703-2888 Idler Bracket

46. 712-3004A Flange Lock Nut 5/16-18

47. 710-3103 Hex Cap Screw 5/16-18 x 2.0

48. 727-3100 Connection Fitting 1/2 x 3/8

49. 603-0358B Skid Plate Assembly

50. 747-3361 Belt Rod LH

51. 603-0450 Support Pump Assembly

52. 710-3178 Carriage Bolt 3/8-16 x .75

53. 749-3040 Frame Strut

54. 736-0921 Lock Washer 1/2

55. 710-1189 Hex Washer Screw #12-24 x .625

56. 756-0974 Transmission Pulley

57. 732-0729 Wire Ring

58. 736-0185 Flat Washer

59. 710-3144 Hex Cap Screw 3/8-16 x 2.0

60. 618-3164 Complete Transmission Assembly RH

61. 710-0751 Hex Cap Screw 1/4-20 x .62

62. 703-2907 Bearing Cup

63. 741-0600 Ball Bearing

64. 756-3085 Idler Pulley 5.0”

65. 712-0324 Hex Lock Nut 1/4-20

66. 750-3176 Idler Spacer

67. 746-3089 Declutching Cable

68. 712-3007 Jam Nut 5/16-18

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 618-3110A Drive Ass’y Complete

2. 712-3004A Hex Flange Lock Nut 5/16-18

3. 715-0136 Spiral Pin 3/16 x 1.25

4. 717-3396 Spur Gear 14T

5. 717-3455 Hydro Transmission

6. 718-3053 Parking Brak e Lever

7. 721-0343 O-Ring 2.0 Dia.

8. 727-3125 Cap Nut 3/8

PART

NO. DESCRIPTION

Model 53AA1A3G401

18 5

REF.

NO.

1. 611-3012 Axle Assembly

2. 618-3106 Carrier Assembly, Output

3. 618-3107 Gear Assembly, 51T Internal & 20T

4. 618-3109 Housing Ass’y

5. 710-1342 Hex Washer Screw 1/4-20 x 1-1/8

6. 711-1048 Brake Shaft

7. 712-3027 Hex Flange Lock Nut 1/4-20

8. 715-0156 Roll Pin

9. 715-0219 Dowel Pin

10. 715-3045 Bushing

11. 716-3015 Inverted Retaining Ring

12. 716-3018 Snap Ring

PART

NO. DESCRIPTION

618-3110A Drive Ass’y Complete 710-0852 Ribbed Neck Stud

REF.

NO.

13. 717-3395 Spur Gear 13T

14. 717-3397 Ring Gear 46T

15. 719-3114 Axle Outer Housing

16. 721-0381 Oil Seal

17. 721-0393 Oil Seal

18. 727-3124 Elbow Fitting

19. 732-0752 Brake Shoe Spring

20. 736-0351 Shim Washer .76 x 1.5 x .030 736-0492 Shim Washer .76 x 1.5 x .010 736-0493 Shim Washer .76 x 1.5 x .020

21. 741-0665 Needle Bearing

22. 741-3033A Ball Bearing

23. 741-3080 Needle Bearing

24. 761-3049 Shoe Brake

PART

NO. DESCRIPTION

Model 53AA1A3G401

16 17

To Starter

Model 53AA1A3G401

REF.

NO.

1. 710-1314 Socket Screw 5/16-18 x .625

2. 736-0119 Lock Washer 5/16

3. 721-0208 Gasket

4. 751-0619 Exhaust Pipe

5. 710-0642 Hex Washer Screw 1/4-20 x .750

6. 710-3178 Carriage Bolt 3/8-16 x .75

7. 751B213146 Casing Clamp

8. 710-1237 Hex Washer screw #10-32 x .625

9. 703-2859 Muffler Bracket

10. 703-3004 Muffler Guide

11. 751-3140 Oil Drain

12. 751-3142 Oil Drain Cap

13. 751-3141 Oil Drain Hose

14. 751-0564 Muffler Deflector

15. 751-0617 Muffler

16. 710-0148 Hex Washer Screw #8-32 x .375

17. 726-0205 Hose Clamp

18. 751-0535 Fuel Line Hose

19. 749-3048 Fuel Line

20. 725-0157 Cable Tie

21. 710-3009 Screw #10-24 x .75

22. 746-3074 Throttle Cable

23. 746-3073 Choke Cable

PART

NO. DESCRIPTION

REF.

NO.

24. 712-0161 Hex Lock Nut #10-24

25. 736-0607 Lock Washer 5/16

26. 712-0431 Flange Lock Nut 3/8-16

27. 736-0258 Flat Wa sher .385 x 1.0

28. 747-3362 Rear Belt Retainer Rod

29. 736-3010 Flat Washer .407 x .812

30. 710-1007 Hex Washer Screw 3/8-16 x 1.5

31. 603-0317 Clutch Retainer Assembly

32. 726-3008 Heat Shield Cable Clip

33. 710-0502A Hex Washer Screw 3/8-16 x 1.25

34. 754-3100 V-Belt

35. 756-3060A Transmission Drive Pulley

36. 714-0128 Key

37. 717-3467 Electric Clutch

38. 750-3106 Spacer Clutch

39. 736-0171 Lock Washer 7/16

40. 710-0510 Hex Cap Screw 7/16-20 x 3.0

41. 712-0291 Hex Lock Nut 1/4-20

42. 736-0270 Bell Washer .265 x .75

43. 725-3001 Solenoid Switch

44. 736-3006 Lock Washer 1/4 ID x 3/4 OD

45. 710-0751 Hex Cap Screw 1/4-20 x .620

46. 725-1711 Retainer Clip

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 629-3033 Main Wire Harness - Not Shown

2. 723-0455 Foam Protector

3. 710-3013 Hex Cap Screw 1/4-20 x .50

4. 703-2809 Indicator Mounting Bracket

5. 726-0349 Ratchet Retainer

6. 725-1718 Relay

7. 712-3027 Hex Flange Nut 1/4-20

8. 710-0134 Carriage Screw 1/4-20 x .62

9. 703-2836 Headlight Mounting Bracket

10. 725-3164A Safety Switch

11. 725-3253 Seat Switch

12. 725-0157 Cable Tie

13. 712-0271 Hex Nut 1/4-20

14. 710-3015 Hex Cap Screw 1/4-20 x .75

15. 747-3347 Battery Retainer Rod

PART

NO. DESCRIPTION

REF.

NO.

16. 731-3233 Battery Tray

17. 725-1722 Battery

18. 783-0462 PTO Switch Retainer Bracket

19. 712-0397 Wing Nut 1/4-20

20. 725-1346 Ignition Switch Nut 5/8-32

21. 725-1347 Ignition Cap Switch

22. 725-3163 Ignition Switch

23. 725-3251 Voltage Sensor

24. 725-3250 Headlight Assembly

25. 731-3184 Headlight

26. 732-0816 Switch Mounting Spring

27. 710-0425 Machine Screw #10-24 x 5/8

28. 712-0161 Hex Lock Nut #10-24

29. 703-3149A Battery Strip

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 757-3014 Seat

2. 731-3154 Seat Slide

3. 712-3004A Flange Lock Nut 5/16-18

4. 732-3098 Spring Index

5. 720-0190 Height Adjustment Knob

6. 603-0294 Seat Base Bracket Assembly

7. 712-3005 Flange Lock Nut 3/8-16

8. 732-3080 Spring Compression

9. 738-0372 Shoulder Spacer

10. 710-1260A Hex Washer Screw 5/16-18 x .750

11. 747-3342 Rod

12. 710-0520 Hex Cap Screw 3/8-16 x 1.5

13. 710-0347 Hex Cap Screw 3/8-16 x 1.75

14. 736-0227 Flat Washer .390 ID x 1.5 OD

15. 603-0318A Seat Spring Plate Assembly

16. 738-3156 Shoulder Spacer

17. 738-0296 Shoulder Screw

18. 714-0104 Cotter Pin

19. 732-0827 Torsion Spring 5/16

20. 736-0314 Thrust Washer

21. 738-3166 Shoulder Spacer

22. 603-0470 Seat Mounting Bra cket Assembly

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 711-0642A Handle Button

2. 731-3158 Handle Deck Lift Grip

3. 732-3097 Compression Spring

4. 747-3405 Front Lift Rod

5. 738-0507B Shoulder Screw .500 Dia x .434

6. 710-0216 Hex Cap Screw 3/8-16 x .75

7. 603-0422 Shaft Mounting Bracket - LH

8. 603-0370 Pivot Link Bearing Ass’y

9. 603-0313 Lift Shaft Ass’y

10. 703-2621 Adjustable Deck Lift Link

11. 703-2780 Lift Parallel Link

12. 603-0327 Handle Bearing Ass’y

13. 703-2772 Deck Height Adjustable Plate

14. 738-3150 Lift Handle Shoulder Screw

15. 712-3020 Top Lock Jam Nut 3/8-16

16. 603-0423 Shaft Mounting Brac ket - RH

17. 710-3083 Hex Cap Screw 5/16-18 x 1.375

18. 711-0773 Eye Bolt Adjustable Link

19. 738-0380 Shoulder Scre w 3/8-1 6

20. 712-0206 Hex Nut 1/2-13

PART

NO. DESCRIPTION

REF.

NO.

21. 712-0431 Flange Lock Nut 3/8-16

22. 738-3151 Shoulder Screw 3/8-16 .56 x .27

23. 712-3015 Jam Nut 5/8-11

24. 736-0158 Lock Washer 5/8

25. 712-3016 Lock Hex Nut 5/8-11

26. 711-3266 Clevis Pin

27. 703-3407 Front Lift Bracket

28. 603-0401 Lift Arm Ass’y

29. 738-0183 Shoulder Screw 3/8-16 .50 x .21

30. 603-0257 Fork Lift Ass’y

31. 710-3011 Hex Cap Screw 3/8-16 x 2.25

32. 747-3276 Lift Link Rod

33. 736-0300 Flat Washer .406 x .875

34. 747-3267 Handle Arm

35. 750-3200 Spacer .448 ID x .688 OD

36. 712-0290 Lock Nut 7/16-14

37. 712-3009 Hex Center L-Nut 5/16-18

38. 710-0431 Hex Screw 3/8-16 x 1.50

39. 737-0280 Grease Fitting

40. 747-3406 Front Mounting Rod Bracket

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 712-3 075 Hex Lock Nut, 1.0-14

2. 736-0274 Flat Washer

3. 603-0389A Pin Ass’y, Pivot

4. 737-3090 Adapter, 1/8 NPTF x 1/8 NPTF

5. 737-3072 Grease Fitting, 65° w/Extension

6. 712-0431 Hex Flange Lock Nut, 3/8-16

7. 712-0229 Push Nut, 3/8 ID

8. 710-3178 Carriage Bolt, 3/8-16 x .75

9. 710-0514 Hex Cap Screw, 3/8-16 x 1.0

10. 736-0169 Lock Washer 3/8

PART

NO. DESCRIPTION

REF.

NO.

11. 736-0227 Flat Washer 3/8 x 1.5

12. 731-0374 Flange Bearing 1.0 ID

13. 737-0280 Grease Fitting

14. 603-0363 Castor Wheel Bracket

15. 712-0239 Hex Center Lock Nut 1/2-20

16. 710-0506 Hex Cap Screw, 1/2-20 x 5.5

17. 750-0456 Spacer, .79 ID x .347 Lg ‘

18. 634-3169 Wheel Comp 11.0 x 4.0 x 5.0

19. 750-3197 Wheel Spacer

20. 603-0382 Front Axle Ass’y

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 712-0455 Retaining Nut 3/8-16

2. 603-0720B Frame Assembly

3. 712-0251 Retaining Nut 3/8-16

4. 710-0216 Hex Cap Screw 3/8-16 x .75

5. 712-0431 Lock Nut 3/8-16

6. 710-3144 Hex Cap Screw 3/8-16 x 2.0

7. 749-3061 Lower Bumper Tube

8. 712-3004 Lock Nut 5/16-18

9. 749-3062 Upper Bumper Tube

PART

NO. DESCRIPTION

REF.

NO.

10. 710-1174 Carriage Bolt 5/16-18 x 2.0

11. 736-0451 Shoulder Washer .320 ID x .93 OD

12. 710-0521 Hex Cap Screw 3/8-16 x 3.0

13. 710-0859 Hex Cap Screw 3/8 - 16 x 2.5

14. 719-3130 Counter Weight

15. 726-0298 End Cap

16. 603-0620 Bumper Ass’y

17. 736-3004 Flat Washer .406 ID x .875 OD

18. 712-0431 Flange Lock Nut 3/8-16

PART

NO. DESCRIPTION

Model 53AA1A3G401

12 13

40 41

Model 53AA1A3G401

REF.

NO.

1. 732-0556 Spring Extension .94 OD x 7.57 LG

2. 712-3006 Hex Nut 1/4-20

3. 710-0597 Hex Cap Screw 1/4-20 x 1.0

4. 703-2559 Stop Bracket

5. 703-2945 Pulley Shield LH

6. 703-3237 Pulley Shield RH

7. 712-3004A Flange Lock Nut 5/16-18

8. 737-3000 Grease Fitting 3/16

9. 603-0580 Rod Assembly

10. 710-1336 Spindle Bolt 3/4-16 x 4.25

11. 756-3089 Pulley

12. 738-0213 Shoulder Screw

13. 736-0192 Flat Washer .531 ID x .93 OD

14. 732-0851A Extension Spring .75 OD x 8.63 LG

15. 750-0151 Spacer .550 ID x .750 OD

16. 603-0316 Deck Assembly 42”

17. 711-3358 Pin Roller

18. 712-0431 Lock Flange Nut 3/8-16

19. 710-3151 Hex Cap Screw 5/8-18 x 4.25

20. 736-0258 Flat Washer .385 ID x 1.0 OD

21. 736-0290 Flat Washer 5/8 ID x 1.0 OD

22. 741-0524 Bearing .625 ID x 1.57 OD

23. 716-3020 Snap Ring

24. 756-0627 Flat Idler Pulley

25. 756-3103 Double Pulle y

26. 712-0239 Hex Lock Nut 1/2-20

27. 736-0179 Flat Washer 1/2 ID x 1.25 OD

28. 736-0188 Flat Washer .76 ID x 1.49 OD

29. 750-0656 Spacer .50 OD x .75 ID

PART

NO. DESCRIPTION

REF.

NO.

30. 741-0338 Flange Bearing 3/4 ID x .52 LG

31. 603-0581 Pivot Arm Pulley Asm

32. 732-0850 Spring Extension 1.0 OD x 6.14 LG

33. 736-0100 Flat Washer .531 ID x 1.25 OD

34. 603-0584 Deck Mounting Plate Asm

35. 736-0187 Flat Washer .64 ID x 1.24 OD

36. 710-3037 Hex Cap Screw 3/8-16 x 1.75

37. 738-0988 Shoulder Spacer

38. 750-3164 Spacer .635 ID x 2.0 LG

39. 703-3147 Idler Pivot Arm

40. 754-3092 V-Belt

41. 731-3005 Roller

42. 710-1260A Hex Washer Screw 5/16-18 x .750

43. 742-3033 Blade

44. 712-3078 Hex Flange Nut 3/4-16

45. 748-3065 Spindle Spacer

46. 710-3178 Carriage Bolt 3/8-16 x .75 LG

47. 714-0115 Cotter Pin

48. 747-3013 Support Pin

49. 715-3003 Pin

50. 732-0802 Spring Compression

51. 736-0160 Flat Washer .536 ID x .930 OD

52. 731-1032 Chute Asm

53. 710-0751 Hex Cap Screw 1/4-20 x .620

54. 736-0270 Bell Washer .265 ID x .75 OD

55. 618-3129 Spindle Assembly

56. 711-3314 Roller Pin

57. 710-3008 Hex Cap Screw 5/16-18 x .75

PART

NO. DESCRIPTION

Model 53AA1A3G401

REF.

NO.

1. 751-3124B Fuel Cap

2. 751-3143 Fuel Tank

3. 736-0227 Flat Washer.390 ID x 1.5 OD

4. 736-0169 Lock Washer 3/8

5. 703-2783 Fuel Tank Mounting Bracket

6. 710-0870 Hex Washer Screw 3/8-16 x .625

7. 710-1260A Hex Washer Screw 5/16-18 x .75

8. 734-1596 Tire 20 x 8 - 8

9. 634-3005 Rim Ass’y 8 x 6.19

10. 734-0255 Tubeless Air Valve

11. 634-3050 Wheel Comp 20 x 8 - 8

PART

NO. DESCRIPTION

NOTES

MANUFACTURER’S LIMITED WARRANTY FOR:

The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new mercha ndise 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 purc ha se an d w i ll, at its option, repai r or replace, free of charge, any part found to be defective in material or workmanship. This limited warranty shal l only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, a nd has not bee n subj ect to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natur al di sa ste r. Damage resulting from the installation or use of any accessory or attachment not approved by MTD Products Inc. for use with the product(s) covered by this manual will void your warranty as to any resulting damages.

Normal wear parts or components thereof are subject to separate terms as follows: All normal wear part 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 material or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates and tires. Batteries are covered by a 90-day limited replacement warranty.

HOW T O OBTAIN SERVICE: W arr anty service is a v aila b le , WITH PROOF OF PURCHASE THROUGH YOUR LOCAL AUTHORIZED SERVICE DEALER. To locate the dealer in your area, please check for a listing in the Yellow Pages or contact the Customer Service Department of MTD PRODUCTS INC by calling 1-800-800-7310 or writing to P.O. Box 368022, Clev e land, Ohio 44136-9722.

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. Please refer to the applicable manufacturer’s warranty on these items.

b.Log splitter pumps, valves and cylinders have a sepa-

rate one year warr an ty.

c. Routine maintenance items such as lubricants, filters,

blade sharpening and tune-ups, or adjustments such as brake adjustments, clutch adjustments or deck adjustments; and normal deterioration of the ex terior finish due to use or exposure.

d. MTD does not extend any warranty for products sold

or exported outside of the United States of America, its possessions and territories, except those sold through MTD’s authorized channels of export distribu- tion.

No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose, applies after the applicable period of express written warranty above as to the par ts as ident ified. No o ther express war ranty or guaranty, whether wri tten or or al, 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. (Some states do not

allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)

The provisions as set f orth in this W a rranty pr o vide the sole and exclusive remedy arising from the sales. MTD shall not be liable for incidental or consequential loss or damages including, without limitation, expenses incurred for substitute or replacement lawn care services, for transportation or for related expenses, or for rental expenses to temporarily replace a warranted product. (Some states do not allow the exclusion or limita-

tion of incidental or consequential damages, so the above exclusion or limitation may not apply to you.)

In no event shall recover y of any kind be greater than the amount of the purchase price o f the pro duct sold . Alter ati on of the 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 use or misuse or inability to use the product.

This limited warranty shall not extend to anyone other than the original purchaser, original lessee or 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.

Yard-Man 53AA1A3G401 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual