Craftsman 536270300 Owner’s Manual

Operator's Manual

ICRRFTSMFIN°I . _a,et_

• Operation

Mid-Engine Rider • Maintenance

• Parts

13.5 HP. Electric Start

30" Mower / Mulcher

Hydrostatic Drive Model 536.270300

CAUTION: Before using this

product, read this manual and follow all of its Safety

Rules and Operating Instructions.

Manual del usario

Tractor cortacesped con motor situado detras del asiento

Arranque electrico de 13,5 caballos

Cortacesped / trituradora de 76 cm. Transmision hidrostatica

Modelo 536.270300

PRECAUCION: Antes de usar este

producto, lea este manual y siga

todas las reglas de seguridad e

instrucciones de operaci6n.

• Seguridad

• Operacion

• Mantenimiento

• Piezas

Sears, Roebuck and Co., Hoffman Estates, IL. 60179 U.S.A.

F-050607L www.sears.com/craftsman

TABLE OF CONTENTS

WARRANTY .................................... 2 MAINTENANCE ................................. 21

PRODUCT SPECIFICATIONS ..................... 3 SERVICE AND ADJUSTMENT .................... 27

SAFETY RULES ................................. 4 TROUBLE SHOOTING CHART .................... 36

PREPARATION .................................. 7 SLOPE GUIDE .................................. 39

OPERATION .................................... 10 REPAIR PARTS ................................. 40

[_ Sears, Roebuck and Co., Dept. 817WA,Hoffman Estates,IL 60179

F-O50607L 2

CongratulationsonyourpurchaseofaCraftsmanMid-Engine Rider.Ithasbeendesigned,engineeredandmanufacturedto

giveyouthebestpossibledependabilityandperformance. Ifyouexperienceanyproblemsyoucannoteasilyremedy,please

seeyournearestSearsServiceCenter.Wehavecompetent,well trainedtechniciansandthepropertoolstoserviceorrepairthis

unit. Pleasereadandkeepthismanual.Theinstructionswillenable

youtoassembleandmaintainyourunitproperly.Alwaysobserve the"SafetyRules".

Craftsman Mid-Engine Rider

Record in the space below the serial number and the date of purchase of this unit.

The model number and serial number are found on a decal attached to the unit.

Model Number: 536.270300

Serial Number:

PRODUCT SPECIFICATIONS

Engine .................. 13.5 HP.

Bore .................. 3.44 in. (87.31 mm)

Stroke ................ 3.06 in. (77.78 ram)

Displacement ......... 28.42 cu. in. (465.7 cc)

Armature air gap ...... 0.010-0.014 in. (0.25-0.36 mm)

Valve Clearance with valve springs installed and piston

0.25 in. (6 ram) past top dead center (check when engine

i8 cold)

Intake ................. 0.005-0.014 in. (0.25-0.36 mm)

Exhaust ............... 0.009-0.011 in. (0.23-0.28 mm)

Charging System ......... 3 amperes at 3600 rpm

Fuel Tank Size ........... 1.1 gallon

Type of Fuel ............. Unleaded Regular

Oil Capacity .............. 48 ounces (3 pints)

Oil Type ................. Above 32 degrees SAE 30

.......................... Below 32 degrees SAE 5W30

Spark Plug (Gap 0.030") .. Champion RJ4C

Tire Air Pressure ......... Front 22 psi (See tire sidewall)

Tire Air Pressure ......... Rear 14 psi (See tire sidewall)

Drive System ............ Hydrostatic

Ground Speed Range ..... Forward 5.0 mph

.......................... Reverse 2.5 mph

Tilt Seat ................. Access to engine and battery.

Mower Housing .......... Floating suspension, one blade.

Cutting Height ........... 6 positions from 11/2to 4 inches.

Blade Nut Torque ......... 30 foot-pounds (ft-lbs)

Power Ratings: The power ratings for an individual engine mod- el are initially developed by starting with SAE (Society of Automo-

tive Engineers) code J1940 (Small Engine Power & Torque Rating Procedure) (Revision 2002-05). Given both the wide array

of products on which our engines are placed, and the variety of environmental issues applicable to operating the equipment, it

may be that the engine you have purchased will not develop the rated horsepower when used in a piece of power equipment (ac-

tual "on-site" power). This difference is due to a variety of factors including, but not limited to, the following: differences in altitude,

temperature, barometric pressure, humidity, fuel, engine lubrica- tion, maximum governed engine speed, individual engine to en- gine variability, design of the particular piece of power equipment,

the manner in which the engine is operated, engine run-in to re- duce friction and clean out of combustion chambers, adjustments

to the valves and carburetor, and other factors. The power ratings may also be adjusted based on comparisons to other similar en-

gines utilized in similar applications, and will therefore not neces- sarily match the values derived using the foregoing codes.

NOTE: Actual sustained horsepower will likely be lower due to operating limitations and environmental factors.

F-050607L

Date of Purchase:

Keep these numbers for future reference.

REPAIR PROTECTION AGREEMENT

A Repair Protection Agreement is available on this unit. See the nearest Sears Store for information.

Engine Exhaust, some of its constituents, and certain vehicle components contain or emit

chemicals known to the State of California to cause cancer and birth defects or other repro-

ductive harm,

Battery posts, terminals and related accesso- ries contain lead and lead compounds, chemi-

cals known to the State of California to cause cancer and birth defects or other reproductive

harm, WASH HANDS AFTER HANDLING,

NOTE: This unit is equipped with an internal combustion engine

and must 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 must 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. See a Sears Service Center for a spark arrester for the muffler.

in some areas, local law requires the use of a resistor spark plug to control the ignition signals. See a Sears Service Center for a

resistor spark plug for the engine.

In the state of California, Model Series 280000 engines are certi- fied by the California Air Resources Board to meet emissions

standards for 125 hours. Such certification does not grant the purchaser, owner or operator of this engine any additional war-

ranties with respect to the performance or operational life of this engine. This engine is warranted solely according to the product

and emissions warranties stated elsewhere in this manual.

SAFETY RULES

Safe Operation Practices for Ride-on Mowers

A ARNING: This cutting machine is capable of amputating hands and feet and throwing objects. Failure to observe the

I. General operation

1. Read, understand and follow all instructions in the Instruction

2. Only allow responsible adults, who are familiar with the instruc-

3. Clear the area of objects such as rocks, toys, wire, etc., which

4. Be sure the area is clear of other people before mowing. Stop

5. Never carry passengers.

6. Turn off power to the blades or any attachments before backing

7. Be aware of the mower discharge direction and do not point it

8. Slow down before turning.

9. Never leave a machine unattended with the engine running. Al-

10. Turn off power to attachment(s) when transporting or not in use.

11. Stop the engine before removing the grass bagger or unclog-

12. Mow only in daylight or good artificial light.

13. Do not operate the machine while under the influence of alcohol

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

15. Use extra caution when loading or unloading the machine into

16. Disengage all attachment clutches and shift into Neutral before

17. Always wear goggles, safety glasses, or an eye shield when

18. Use care when pulling loads or using heavy equipment.

19. Do not operate this machine if you are taking drugs or other me-

20. Do not use this machine if you are mentally or physically unable

F-050607L

following safety instructions could result in serious injury or death.

Book, on the machine, the engine and with any attachments be-

fore starting.

tions, to operate the machine.

could be picked up and thrown by the blade.

the machine if anyone enters the area.

up. Do not mow in reverse unless absolutely necessary. Always look down and behind before and while backing.

at anyone. Do not operate the mower without either the entire grass bagger or the mower guard in place.

ways turn off the blade(s), set the parking brake, stop the en- gine and remove the key before dismounting.

Turn off the blade(s) when not mowing.

ging the chute.

or drugs or when very tired.

a trailer or truck.

attempting to start the engine.

you operate the unit to protect your eyes from foreign objects

that can be thrown from the unit. Always wear eye protection

when you make an adjustment or repair to the machine.

a. Use only approved drawbar hitch points. b. Limit loads to those you can safely control.

c. Do not turn sharply. Use care when backing. d. Use counterweights or wheel weights when suggested in the

Instruction Book.

dication which can cause drowsiness or affect your ability to op- erate this machine.

to operate this machine safely.

21. Data indicates that operators, age 60 years and above, are in- volved in a large percentage of riding mower related injuries.

These operators should evaluate their ability to operate a riding mower safely enough to protect themselves and others from

serious injury.

II. Slope operation

Slopes and rough terrain are major factors related to loss-of- control and tip-over accidents, which can result in severe inju-

ry or death. ALL slopes require extra caution. If you cannot back up the slope or if you feel uneasy on the slope, do not mow

it. See the "Slope Guide" in the back of this book to check for safe operation.

1. Mow up and down slopes, not across.

2. Remove obstacles such as rocks, limbs, etc...

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

4. Follow the manufacturer's recommendations for wheel weights or counterweights to improve stability.

5. Use extra care with grass baggers or other attachments, they can change the stability of the machine.

6. Keep all movement on the slopes slow and gradual. Do not make sudden changes in speed or direction.

7. Avoid starting or stopping on a slope. If tires lose traction, turn off the blades and proceed slowly straight down the slope.

DO NOT

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

2. Do not mow drop-offs, ditches or embankments. A wheel over the edge or an edge caving in could cause a sudden overturn

and an injury or death.

3. Do not mow on wet grass. Reduced traction could cause slid- ing.

4. Do not try to stabilize the machine by putting your foot on the ground.

5. Do not use a grass bagger or other rear mounted accessories on steep slopes (greater than 10 degrees).

III. Children

Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the ma-

chine and the mowing activity. NEVER assume that children will remain where you last saw them.

1. Keep children out of the mowing area and in the watchful care of another responsible adult.

2. Be alert and turn the engine off ifchildren enter the area.

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

SAFETY RULES

4. Never carry children or any passengers, even with the blades 5. off. They may fall off and be seriously injured or interfere with

the safe operation of the machine.

Never allow children to operate the machine. Instruct children in the potential dangers of the machine. 6.

Use extra care when approaching blind corners, shrubs, trees or other objects that may obscure vision. 7.

IV. Service

1. Use extra care when handling gasoline and other fuels. Fuels are flammable and the vapors are explosive.

a. Use only an approved container. b. Never remove the gas cap or add fuel with the engine run-

ning. Allow the engine to coo! for several minutes before refueling. Do not smoke.

c. Never refuel the machine indoors or near appliances with

pilot lights, heaters, or other ignition sources.

d. Never store the machine with fuel in the tank or fuel con-

tainer inside where there is an open flame, such as a water

heater.

2. Never start or run the engine inside a closed area. a. Make sure that spark plug, muffler, fuel cap and air cleaner

are in place. b. Do not crank engine with spark plug removed. c. If fuel spills, wait until it evaporates before starting engine. d. Do not start ifthere is LP or natural gas leakage in the area.

3. Keep all nuts and bolts, especially the blade attachment nuts tight. Frequently check the blade(s) for wear or damage such

as cracks and nicks. A blade that is bent or damaged must be immediately replaced with an original equipment blade from an

authorized service dealer. For safety, replace the blade every

two years. Keep the equipment in good condition.

4. Never tamper with the safety devices. Check their proper oper-

ation regularly.

To reduce fire hazards, keep the machine free of grass, leaves or other debris build-up. Clean up oil or fue! spills. Allow the ma- chine to cool before storing.

a. Allow muffler and engine areas to cool before touching. Stop and inspect the equipment if you strike an object. Repair,

if necessary, before restarting. Never make adjustments or repairs with the engine running.

The carburetor can be adjusted with the engine running. Do not change the engine governor settings or over-speed the en-

gine. Grass bagger components are subject to wear, damage and

deterioration, which could expose moving parts or allow objects to be thrown. For storage, always make sure the grass bag is

empty. Frequently check components and replace with man- ufacturer's recommended parts when necessary.

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

blade housing area.

10.

Check the brake operation frequently. Adjust and service as re- quired.

11.

Wait for all movement to stop before servicing any part of the unit.

RESPONSIBILITY OF THE OWNER

Environmental Awareness

• Do not fill the engine's fuel tank completely full.

• Drain fuel for off-season storage.

• Use only unleaded gasoline.

• Service the air cleaner regularly.

• Change oil regularly. Use oil rated 30 in the summer.

• Tune-up the engine regularly.

• Keep equipment in efficient operating condition.

• Dispose of used engine oil properly.

The safety symbol _ is used to identify safety information about hazards that can result in personal injury. A signal

word (DANGER, WARNING, or CAUTION) is used with the alert symbol to indicate the likelihood and the potential severity of injury. In addition, a hazard symbol may be used to represent the type of hazard.

DANGER indicates a hazard which, if not avoided, will result in death or serious injury. WARNING indicates a hazard which, if not avoided, could result in death or serious injury. CAUTION indicates a hazard which, if not avoided, might result in minor or moderate injury. CAUTION when used without the alert symbol, indicates a situation that could result in damage to the engine.

F-050607L 5

INTERNATIONAL PICTORIALS

IMPORTANT: Some of the following pic- torials are located on your unit or on literature supplied with the product. Be-

fore you operate the unit, learn and un- derstand the purpose for each pictorial.

Safety Warning Pictorials

1 Warning 2 Shield Eyes. Explosive Gases Can

Cause Blindness Or Injury.

3 No Sparks, Flames or Smoking. 4 Sulphuric Acid Can Cause Blindness

Or Severe Burns

2 3 6

SAFETY RULES

5 Flush Eyes Immediately With Water.

Get Medical Help Fast.

6 IMPORTANT: Read Owner's Manual

Before Operating This Machine.

7 WARNING: Thrown Objects. Keep

Bystanders Away. Read User Instructions Before Operating This

Machine.

8 WARNING: Do Not Use This Machine

On Slopes Greater Than 15 Degrees.

9 DANGER: Keep People, Especially

Children, Away From Unit.

10 DANGER: No Step. 11 DANGER: Keep Feet And Hands

Away From Rotating Blade,

12 DANGER: Keep Hands Away From

Rotating Blade,

13 DANGER: Disconnect Spark Plug

Wire Before Servicing Unit.

14 WARNING: Hot Surface, 15 WARNING: Use Caution When

Connecting Or Disconnecting Accessories,

16 WARNING: Crushed Fingers.

"Ab

II.. o

7 8

12 13 14 15 16

Control And Operating Pictorials 1 Engine Start

2 Engine Stop 3 Select Reverse T'_

4 Engine Run

5 Brake 6 Parking Brake

7 Clutch 8 Slow

9 Fast

10 11

MAX± 90N MAX± 150N

10 Choke 11 Oil

12 Blade Rotation Control 13 Raise

14 Fue!

5 6

F-050607L

9 10 11

12 13 14

PREPARATION

PREPARATION 1.

Read and follow the preparation instructions for your mower. All fasteners are in the parts bag. Do not discard any parts or material

until the unit is assembled.

NOTE: In this instruction book, left and right describe the loca- tion of a part from the viewpoint of someone setting in the oper-

ator's seat.

_b WARNING: Before doing any preparation or mainte-

nance to the mower, remove the wire from the spark plug.

HOW TO REMOVE FROM THE CARTON

To remove the unit from the carton, follow the instructions below.

5. Repeat the process on the tear tabs at the bottom of the carton.

6. Set the panels aside.

7. Move the shift lever to the neutral (N) position.

8. If the parking brake is engaged, completely depress the

9. Move the lift lever to the highest position.

10. Remove the mower from the shipping skid.

Locate the two tear tabs at the top of the carton. Pull the tear tape no more than twelve inches at a time. Re-grasp the tear tape next to the carton and pull again. One the tear tape has been completely removed from both

ends, remove the top wood and set aside.

NOTE: See the Operation section, page 10, for the location of the controls.

clutch/brake pedal to release the brake.

CAUTION: Check the bottom of the carton for staples. Remove any staples that are in the path of the tires.

LOOSE PARTS - CONTENTS

The fasteners and other loose parts are shown below. The fasteners are shown full size. The quantity is shown in brackets ().

Literature Kit

Side Discharge Attachment

F-050607L 7

PREPARATION

MAINTENANCE FREE BATTERY 3

IMPORTANT: Before you attach the battery cables to the battery, check the battery date. The battery date tells if the battery must be charged.

1. Raise the seat support and secure in the UP position with the

seat support rod.

2. Check the top and the side of the battery for the location of the

battery date (Figure 1).

3. If the battery is put into service before the battery date, the

battery cables can be attached without charging the battery. See "How To Install The Battery Cables".

4. If the battery is put into service after the battery date, the

battery must be charged. See "How To Charge The Maintenance Free Battery".

HOW TO CHARGE THE MAINTENANCE FREE BATTERY

,_ WARNING: When you charge the battery, do not

1. To disconnect the battery retainer from the battery tray, push

2. Remove the battery from the right side of the unit,

smoke. Keep the battery away from any sparks. The fumes from the battery acid can cause an explosion.

in on the lower end of the battery retainer.

Remove the protective cap from the battery terminal.

Use a 12 volt battery charger to charge the battery. Charge at a rate of 6 amperes for one hour. If you do not have a battery charger, have an authorized service center charge the battery.

Install the battery and secure with the battery retainer. Make sure the positive (+) terminal is on the right side.

HOW TO INSTALL THE BATTERY CABLES

,_ WARNING: To prevent sparks, fasten the red cable to

Use the fasteners shown below to install the battery cables. The

fasteners are shown at full size.

1. Remove the protective cap from the battery terminal.

2. Fasten the red cable and terminal cover to the positive (+)

3. Fasten the black cable to the negative (-) terminal with the

the positive (+) terminal before you connect the black

cable.

(A) (B)

2x82 14x79

terminal with the fasteners as shown (Figure 1).

fasteners as shown.

Positive (+)

Terminal

Battery A

Black Cable

Red Cable

Battery Clamp

Figure 1

F-050607L 8

PREPARATION

HOW TO ENGAGE THE TRANSMISSION

To allow the unit to be pushed, the unit was shipped with the automatic drive disconnect in the PUSH POSITION. Before

operating, the automatic drive disconnect must be set in the DRIVE POSITION. (Figure 2)

1. The engine must be off.

2. The automatic drive disconnect is located under the left side

of the seat deck next to the hydrostatic transaxle.

3. To engage the transmission, unlatch the automatic drive dis-

connect. The transmission is now connected and ready to op- erate.

4. To release the transmission and push the unit, pull and twist the

automatic drive disconnect, Latch the automatic drive dis- connect in the PUSH position (Figure 2). The transmission is

now released and the unit can be pushed. NOTE: In cold weather, the heavy viscosity oil in the

transmission will make the unit difficult to push.

Automatic Drive Disconnect

DRIVE POSITION

Automatic Drive Disconnect

PUSH POSITION

Figure 2

HOW TO PREPARE THE ENGINE

NOTE: The engine was shipped from the factory filled with oil. Check the level of the oil. Add oil as needed.

CHECK THE TIRES

NOTE: The tires were over inflated for shipment. The correct air pressure i8 shown on the side of the tire.

Check the air pressure in the tires. Tires with too much air pressure will cause the unit to ride rough. Also, the wrong air pressure will

keep the mower housing from cutting level. The correct air pressure is shown on the side of the tire.

CHECK THE LEVEL OF THE MOWER HOUSING

Make sure the level of cut is still correct. After you mow a short distance, look at the area that was cut. If the mower housing does

not cut level, see the instructions on "How To Level The Mower Housing" in the Service And Adjustment section of this instruction

book.

NOTE: The operation of a new engine will sometimes result in a slight amount of smoke. This smoke is caused by paint or oil

on or around the muffler. This is normal and only expected during initial operation.

Before you use the unit, read the information on safety, operation, maintenance, and storage.

IMPORTANT! BEFORE YOU START MOWING

Check the engine oil, Fill the fuel tank with gasoline, Check the air pressure of the tires. Check the level of the mower housing, Make sure the battery cables are attached. Make sure the wire is attached to the spark plug,

F-050607L

OPERATION

Parkiing Brake

Lift Lever

Throttle Oontrol

Lever

Clutch / Brake

Pedal

Ignition Key Switch

Attachment

Olutch

Speed Control

Lever

The operation of any lawn mower can result in foreign objects thrown in the eyes, which can result in severe eye

damage. Always wear safety glasses or eye shields before starting your lawn mower and while mowing. We recom- mend standard safety glasses or a wide vision safety mask worn over he spectacles or standard safety glasses,

available at Sears Retail or Catalog Stores.

LOCATION OF CONTROLS

ATTACHMENT CLUTCH: Use the attachment clutch to

start and stop the rotation of the blade(s) and to operate a snow thrower attachment,

CLUTCH / BRAKE PEDAL: The pedal has two functions,

The first function is a clutch, The second function is a brake. Use the brake pedal to quickly stop the forward or reverse motion of the unit.

IGNITION KEY SWITCH: Use the ignition key switch to

start and stop the engine. When you start the engine and release the

F-050607L 10

Figure 3

ignition key, the ignition key switch will automatically default to the recommended RUN-MOW position for normal mowing.

SPEED CONTROL LEVER: Usethe speed control lever

to change the speed and the direction of the unit. LIFT LEVER: Use the lift lever to change the height of cut.

PARKING BRAKE LEVER: Usethe parking brake lever

to engage the brake when you leave the unit.

THROTTLE CONTROL LEVER: Use the throttle control

lever to increase or decrease the speed of the engine.

ATTACHMENTS

OPERATION

This unit can use many different attachments. See the attachment page in this book. This unit can pull attachments like a lawn sweeper, a lawn aerator, a hopper spreader, or a small trailer. This unit can not use attachments that engage the ground like a plow, a disk harrow, or a cultivator.

For all pull-behind attachments or trailers, the maximum gross

ELECTRICAL SAFETY SYSTEM

The electrical system has two primary components, an Operator Presence System and a Select ReverseT" system.

Operator Presence System (Seat)

The seat has an Operator Presence System to shut off the engine when the operator leaves the seat. This system is not intended for

weight is 200 pounds. Gross weight is the weight of the attachment or trailer and any load that might be on or in it.

Do not operate on a slope that is greater than 10 degrees when using a pull-behind attachment or trailer. We have included a slope guide in this book to help you determine the slope on which you will be operating your unit. Never allow someone to stand or ride on or

in an attachment or trailer.

regular use in stopping the engine or the blade(s). Before leaving the seat, move the blade rotation control to the DISENGAGE position, shift to neutral, set the parking brake and stop the engine.

Select Reverse'" System

The Select Reverse T'_ system will allow the mower blade(s) to continue to rotate when traveling in reverse. See "How To Operate The Ignition Key Switch" and "How To Start The Engine" for further

details.

HOW TO OPERATE THE IGNITION KEY SWITCH

Use the ignition key switch to start and stop the engine. When you start the engine and release the ignition key, the ignition key switch will automatically default to the recommended RUN-MOW position for normal mowing.

START - Use this position to start the engine. RUN-MOW - When you start the engine and release the ignition

key, the ignition key switch will automatically default to the recommended RUN-MOW position for normal mowing. In the RUN-MOW position, the system will stop the engine and the blade(s) when the speed control pedal/shift lever is put in the reverse position.

SELECT REVERSE" - The optional Select Reverse T_ position will allow the mower blade(s) to continue to rotate when

traveling in reverse. Always go back to the recommended RUN-MOW position for normal mowing when operation in Select Reverse T`_is not absolutely necessary. NEVER use the Select ReverseT_ option if children are on or near the property.

(_ WARNING: Operators are strongly discouraged

that safe precautions are taken. Never use the Select Re- verse _ option if children are on or near the property. Always

look down and behind before and while backing. After using

the Select Reverse _ position, move the ignition key back to the RUN-MOW position.

STOP - Use this position to stop the engine.

from using this option unless the operator de- cides such operation is absolutely necessary and

F-050607L 11

OPERATION

HOW TO STOP THE UNIT

1. Completely push the clutch/brake pedal forward to stop the

unit. Keep your foot on the pedal.

2. Move the attachment clutch to the DISENGAGE position.

3. Move the speed control lever to the NEUTRAL position.

4. Set the parking brake.

HOW TO SET THE PARKING BRAKE

1. Completely push the clutch/brake pedal forward.

2. Lift the parking brake lever (Figure 5).

3. Remove your foot from the clutch/brake pedal and then release the parking brake lever. Make sure the parking brake will hold

the unit.

4. To release the parking brake, completely push the clutch/

brake pedal forward. The parking brake will automatically re- lease.

,_ WARNING: Make sure the parking brake will hold the

unit.

5. Move the throttle control to the SLOW position.

6. To stop the engine, turn the ignition key to the STOP O posi- tion. Remove the key.

Clutch/Brake

Pedal

WARNING: Before you leave the operator's position,

,_ move the shift lever to the neutral (N) position. Set the

parking brake. Move the attachment clutch to the

DISENGAGE position. Stop the engine and remove

the ignition key.

HOW TO USE THE THROTTLE / CHOKE CONTROL

CAUTION: Always operate the engine with the throttle control in the FAST position. If the engine runs for several minutes at slower than the FAST position, the engine and transmission will overheat and can be damaged.

Use the throttle/choke control to choke the engine for cold starts and increase or decrease the speed of the engine (see Figure 6).

1. Move the throttle/choke control completely forward to the CHOKE position to start a cold engine.

The FAST position is marked with a detent. For normal opera- tion and when using a grass bagger, move the throttle control

to the FAST position. For maximum charging of the battery and for a cooler running engine, operate the engine in the FAST

position.

3. For transport and to tow pull behind attachments, control the ground speed with the speed control pedal.

F-050607L

The engine governor is set at the factory for maximum perfor- mance. Do not adjust the governor to increase the speed of the engine.

Throttle

Contro

Figure 6

OPERATION

HOW TO USE THE ATTACHMENT CLUTCH

Use the attachment clutch to engage the blade (Figure 7).

1. Before you start the engine, make sure the attachment clutch is in the DISENGAGE position.

2. To rotate the blade, move the attachment clutch forward to lock the blade in the ENGAGE position.

Note: If the engine stops when you engage the blade(s),

the transmission is in reverse.

3. To stop the blade, move the attachment clutch to the DISEN- GAGE position. Before you leave the operator's position,

make sure the blade has stopped rotating.

4. Before you ride the unit across a sidewalk or a road, move the attachment clutch to the DISENGAGE position.

5. Before operating in reverse, move the blade rotation control to

the DISENGAGED position. Ifthe blade rotation control is not

in the DISENGAGED position, the engine will stop when the speed control pedal/shift lever is moved to REVERSE position.

Attaclqment Clutch

Engage Position

Figure 7

_ WARNING: Always keep your hands and feet away

from the blade, deflector opening, and the mower

housing when the engine runs.

HOW TO CHANGE THE CUTTING HEIGHT

To change the cutting height, raise or lower the lift lever as follows.

1. Move the lift lever forward to lower the mower housing and back to raise the mower housing (Figure 8).

2. When you ride on a sidewalk or road, move the lift lever to the highest position and move the attachment clutch to the

DISENGAGE position.

F-050607L 13

Figure 8

OPERATION

HOW TO DISCONNECT THE TRANSMISSION

To push the unit, use the automatic drive disconnect to release the transmission. (Figure 9)

1. The engine must be off.

2. The automatic drive disconnect is located under the left side of the seat deck next to the hydrostatic transaxle.

3. To release the transmission and push the unit, pull and twist the automatic drive disconnect.. Latch the automatic drive dis-

connect in the PUSH position (Figure 9). The transmission is now released and the unit can be pushed.

NOTE: In cold weather, the heavy viscosity oil in the

transmission will make the unit difficult to push.

4. To engage the transmission, unlatch the automatic drive dis- connect. The transmission is now connected and ready to op-

erate.

Automatic Drive Disconnect

DRIVE POSITION

Automatic Drive Disconnect

PUSH POSITION

Figure 9

F-050607L 14

OPERATION

HOW TO USE THE SPEED CONTROL LEVER

The Hydrostatic Drive is very easy to operate. The drive system has a a clutch/brake pedal on the left side (see Figure 10) and a speed

control lever on the right side (see Figure 11).

The speed and direction of travel is controlled by the speed control lever (see Figure 11). Use the speed control lever to select either

forward or reverse.

HOW TO DRIVE FORWARD

1. The automatic drive disconnect must be in the DRIVE position (Figure 9).

2. Completely push the clutch/brake pedal forward to stop the unit (see Figure 10). Keep your foot on the pedal.

3. Move the speed control lever to NEUTRAL position (see Figure 11).

4. Slowly release your foot from the clutch/brake pedal (see Figure 10). Do not keep your foot on the clutch/brake pedal.

5. Move the throttle control to the FAST position (see Figure 12).

6. Slowly push the speed control lever forward to the desired speed (see Figure 10). To reduce forward speed, slowly pull the

speed control lever to the desired speed.

Speed Control

Lever

Figure 10

Figure 11

HOW TO CHANGE DIRECTIONS / DRIVE IN REVERSE

1. Always disengage blades and look down and behind before and while backing.

2. Move the speed control lever to the NEUTRAL position (see Figure 12).

3. To go backward, move the speed control lever to the REVERSE position.

F-050607L 15

Throttle

Control Lever

Figure 12

OPERATION

SPEED CONTROL LEVER POSITIONS

The forward speed is controlled by the position of the speed control lever. The following chart provides functions along with the positions of the speed control lever. Always operate the engine with the throttle control in the FAST position.

FUNCTION

SPEED

CONTROL

LEVER

POSITION

Trimming

1/3

Steep Hills

Bagging Grass 1/3 to 1/2

Normal Mowing 1/2 to 2/3

Easy Mowing 1/2 to 3/4

Transport

Pull Behind

FULL

1/3 to 1/2

Attachments

THROTTLE

FAST

CHOKE i

THROTTLE

HOW TO TRANSPORT THE UNIT

To transport the unit, follow the steps below.

1. Move the attachment clutch to the DISENGAGE position.

2. Raise the lift lever to the highest position.

3. Move the throttle control to the FAST position.

4. To go faster, move the speed control lever to a faster speed.

F-050607L 16

OPERATION

HOW TO INSTALL THE SIDE DISCHARGE ATTACHMENT

1. Remove the fasteners that secure the mulcher covet (see

,_ WARNING: To prevent the engine from starting, dis-

The mulcher cover lets you mulch the grass for a clean, fine cut. To discharge the grass out the side, install the side discharge

attachment as follows.

connect the wire from the spark plug. Make sure the attachment clutch is in the DISENGAGE position.

Mulcher Cover

Figure 13).

2. Lift the mulcher cover. Mount the side discharge attachment onto the same bolts that secured the mulcher cover.

3. Secure the side discharge attachment with the fasteners.

4. To mulch, remove the side discharge attachment and mount the mulcher cover to the mower housing with the fasteners.

Side Discharge Attachment

Wingnut

Washer

Wingnut

Figure 13

F-O50607L 17

BEFORE STARTING THE ENGINE

OPERATION

CHECK THE OIL NOTE: The engine was shipped from the factory filled with oil

rated 30. Check the level of the oil, Add oil as needed,

1. Make sure the unit is level. NOTE: Do not check the level of the oil while the engine

runs.

2. Clean the area around the dipstick. Remove the dipstick. Wipe

the oil from the dipstick.

3. Insert the dipstick into the oil fill tube. Turn the dipstick clock- wise until it is tight. Remove the dipstick. Check the oil level on

the dipstick. The oil level must reach the FULL mark on the

dipstick.

4. If necessary, add oil until the oil reaches the FULL mark on the dipstick. The quantity of oil needed from ADD to FULL is shown

on the dipstick. Do not add too much oi!.

ADD GASOLINE

WARNING: Always use a safety gasoline container.

,_ Do not smoke when adding gasoline to the fuel tank.Do not add gasoline when you are inside an enclo-

sure. Before you add gasoline, stop the engine and let the engine cool for several minutes.

Use clean, fresh, regular unleaded gasoline with a minimum of 85 octane. Fresh fuel prevents gum from forming in the fuel system or on essential carburetor parts. Purchase fue! in quantity that can be used with 30 days.

• Do not use gasoline which FueI Tank

CAUTION: Alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas

can damage the fuel system of an engine while in storage.

To prevent engine problems with the fuel system, empty the fue! system before storage of 30 days or longer as follows.

1. Drain the fuel tank.

2. Start the engine. Let the engine run until the fuel lines and the carburetor are empty.

3. After storage, make sure you use fresh fue!. See the storage instructions for additional information.

4. Never use engine cleaner or carburetor cleaner in the fuel tank or permanent damage can occur.

CARBURETOR

The factory settings for the carburetor are for most conditions. If the engine is operated under the following conditions, you can adjust the carburetor mixture. See "How To Adjust The Carburetor" in the Service And Adjustment section.

1. The engine has a loss of power or does not run smooth.

2. A change from summer to winter operation.

3. A 40 degree change in the operation temperature. The carbure- tor was adjusted at 80 degrees at the factory.

4. The engine is operated above 4,000 feet.

• Do not mix oil with gasoline.

• For engine protection, use a

contains Methanol. ____

fuel stabilizer available at a

Sears Store or Service Center.

• This engine is certified to operate on gasoline. Exhaust Emission Control System: EM (Engine Modifications).

HOW TO START THE ENGINE

WARNING: The electrical system has two primary components, an operator presence system and a Se-

lect Reverse T_system. The operator presence sys-

tem determines if the operator is sitting on the seat. This system will stop the engine when the operator

leaves the seat.attachment clutch The Select Rever-

se T`_system gives the operator the ability to tempo- rarily mow in reverse if he decides such operation is

absolutely necessary and safe operating precautions are taken. For your protection, always make sure the-

se systems operate correctly.

NOTE: The engine will not start unless you depress the clutch/brake pedal or engage the parking brake and move the

attachment clutch to the DISENGAGE position.

1. Make sure the spark plug wire is connected to the spark plug. 6.

2. Move the speed control lever to the neutral (N) position.

3. Make sure the attachment clutch is in the DISENGAGE posi- 7.

tion. Ifthe blade rotation control is not in the DISENGAGE posi- tion, the engine wi!! not start.

F-050607L 18

Move the throttle control completely forward to the CHOKE Ikl or FAST position. Some models have a separate choke knob. Pull the choke knob to the full CHOKE position.

Turn the ignition key to the START _ position. Release the key when the engine starts. The ignition key switch will auto-

matically default to the recommended RUN-MOW position for normal mowing. See "How To Operate The ignition Key Switch"

in the Operation Section.

NOTE: If the engine does not start after four or five tries, move the throttle control to the FAST position. Again try to start the engine. If the engine will not start, see the

TROUBLESHOOTING CHART.

Slowly move the throttle control to the SLOW position. If model has a separate choke knob, push in the choke knob.

Let a cold engine run for several minutes. Begin work when the engine is warm. To start a hot engine, move the throttle control

to a position between FAST and SLOW.

OPERATION

HOW TO OPERATE WITHTHE MOWER HOUSING

WARNING: The mulch cover is a safety device. Do not remove the mulch cover. The side discharge attach-

_b ment forces the discharged material toward the

ground. Always keep the side discharge attachment

in the down position. If the side discharge attachment is damaged, replace the with an original equipment

part from a Sears Service Center.

IMPORTANT: When you operate with the mower housing, always operate with the throttle control in the FAST position.

1. Push the clutch/brake pedal completely forward.

2. Start the engine.

3. Put the speed control lever in the NEUTRAL position.

4. Slowly release the clutch/brake pedal.

5. Move the lift lever to a height of cut position. In high or thick

grass, cut the grass in the highest position first and then lower

the mower housing to a lower position.

CAUTION: Do not operate with the mower housing in the LEVEL ADJUSTMENT position. If you operate in the

LEVEL ADJUSTMENT position, the mower housing and blades can be damaged.

Move the throttle control to the SLOW position.

Move the attachment clutch to the ENGAGE position.

Move the speed control lever forward.

NOTE: When you mow in heavy grass or mow with a bagger, operate at a slow forward speed.

Move the throttle control to the FAST position. If you need to go faster or slower, move the speed control lever forward or back-

ward.

10.

Make sure the level of cut is still correct. After you mow a short distance, look at the area that was cut. If the mower housing

does not cut level, see the instructions on "How To Level The Mower Housing" in the Service And Adjustment section.

_b ARNING: For better control of the unit, always

select a safe speed.

HOW TO OPERATE THE UNIT ON HILLS

_ WARNING: Do not ride up or down slopes that are too

1. Before you ride up or down a hill, move the speed control lever

2. Do not stop or change speed settings on a hill. If you must stop,

steep to back straight up. Never ride the unit across a slope. See the "Slope Guide" in the back of this

book for information on how to check slopes.

to a slow speed.

quickly push the clutch/brake pedal forward and set the parking brake.

3. To start again, make sure the speed controllever is in a slow speed. Move the throttle control to the SLOW position. Slowly

release the pedal.

4. If you must stop or start on a hill, always have enough space for the unit to roll when you release the brake and engage the

clutch.

5. Be very careful when you change directions on a hill. When on a slope or in a turn on a hill, move the throttle control to the SLOW position to help prevent an accident.

F-050607L 19

OPERATING TIPS

OPERATION

Check the attachment clutch for correct adjustment. For the blade(s) to disengage correctly, the adjustment must be cor-

rect.

Before you use the unit, check the oil in the engine and add oil if necessary.

If the engine will not start, first make sure the wire is attached

to the spark plug.

Make sure all the belts are inside all the belt guides. See the in- structions on how to remove and install the motion drive and

mower drive belts.

MOWING AND BAGGING TIPS

1. For a lawn to look better, check the cutting level of the mower housing. See "How To Level The Mower Housing" in the Ser-

vice And Adjustment section.

2. For the mower housing to cut level, make sure the tires have

the correct amount of air pressure (PSI) and use slow ground

speeds when turning.

3. Every time you use the unit, check the blade. If the blade is bent or damaged, immediately replace the blade. Also, make sure

the nut for the blade is tight.

4. Keep the blade(s) sharpened. A worn blade(s) will cause the ends of the grass to turn brown.

5. Do not cut or bag grass that is wet. Wet grass will not discharge correctly. Let the grass dry before cutting.

6. Use the left side of the mower housing to trim near an object.

7. Discharge the cut grass onto the mowed area. The result is a more even discharge of cut grass.

8. When you mow large areas, start by turning to the right so that

the cut grass will discharge away from shrubs, fences, drive-

ways, etc. After one or two rounds, mow in the opposite direc-

tion making left turns until finished (Figure 14).

9. Use a mowing pattern that eliminates reverse travel as much as possible.

10. If the grass is very high, cut two times to decrease the load on

the engine. First cut with the mower housing in the highest posi- tion and then lower the mower housing for the second cut.

5. Before you make an inspection, adjustment (except for the car- buretor) or repair, make sure the wire from the spark plug is dis-

connected.

6. Make sure the seat switch wire is connected. If the wire is not connected, the engine will not start.

7. For longer life of the battery, charge the battery every three months.

8. Use the shift lever to change the ground speed, not the throttle control.

9. Belt noise can occur when the blade or clutch is engaged. This noise is normal and does not affect the operation of the unit.

10. To move forward, always release the clutch/brake pedal slowly.

11. For better engine performance and an even discharge of the cut grass, always operate the engine with the throttle in FAST

position.

12. When you use a bagger, operate the engine with the throttle in FAST position and the speed control lever in a slow forward

speed.

13. For better cutting performance and a quality cut, mow in a slow forward speed.

14. After each use, clean the bottom and top of the mower housing for better performance. Also, a clean mower housing wil! help

prevent a fire.

(

• J

Figure 14

MULCHING TIPS

When you use a mulcher attachment, the grass is cut into very small 4. pieces. These small pieces will quickly break down. Because the nutrients are returned to the soil, the lawn will need less fertilizer. Too correctly mulch the grass, follow the steps below.

1. Set the throttle in the FAST position. Operate the mower at a slower ground speed. If ground speed is too fast, the grass will 5.

not have an even cut.

2. Keep a sharp edge on the blade. A blade that is not sharp will cause the ends of the grass to become brown. 6.

3. Make sure the grass is dry. Wet grass is difficult to cut. 7.

F-050607L 20

Set the height of the mower housing so that only the top third of the grass is cut. If the grass is too high, set the height of the

mower housing to the maximum height. Then, lower the mower housing for the second cut. Also, instead of using the full width of the mower housing, mulch at half the width.

Clean the bottom of the mower housing. Grass and other debris can keep the mower from working correctly.

If the grass grows fast, mulch more often. If an area needs improvement, mulch a second time.

MAINTENANCE

MAINTENANCE TABLE

FIRST EVERY

EACH 2 25

PROCEDURE USE HOURS HOURS

I I I

EVERY EVERY

50 100 BEFORE

HOURS HOURS STORAGE

i i

Blade, Inspect and Sharpen

Battery, Clean _/ _/

I I I I I I

Lubrication _ ' '

Oil, Change _/ _/* _/

E N

Muffler, Check _/ _/

Foam Air Filter, Service I I I _ I I I

Paper Air Filter, Service ,,/_;*

n n n n n n

Spark Plug, Replace ,,/

Change oil every 25 hours when operating under heavy load or in high temperatures. Clean cooling system move often if operating under dusty conditions.

If engine is not equipped with a Foam Air Filter, then service the Paper Air Filter every 25 hours.

GENERAL RECOMMENDATIONS

1. The owner's responsibility is to maintain this product. This will extend the life of the product and is also necessary to maintain

warranty coverage.

2. Check the spark plug, drive brake, lubricate the unit, and clean

the air filter once a year.

3. Check the fasteners. Make sure all fasteners are tight.

4. Follow the Maintenance and the Service And Adjustment sec-

tion to keep the unit in good operating condition.

_lb ment, or repair to the unit, disconnect the wire to the

Maintenance, replacement, or repair of the emission control devices and systems may be performed by any non-road engine repair establishment or individual. Regular maintenance will improve the performance and extend the life of the engine.

WARNING: Before you make an inspection, adjust-

spark plug. Remove the wire from the spark plug to

prevent the engine from starting by accident.

CHECK THE TIRES

Check the air pressure in the tires. Tires with too much air pressure will cause the unit to ride rough. Also, the wrong air pressure will keep the mower housing from cutting level. The correct air pressure (PSI) is shown on the side of the tire.

F-050607L 21

MAINTENANCE

INSPECT BLADE

WARNING: Before you inspect or remove the blade, disconnect the wire to the spark plug. If the blade

,_h[| hits an object, stop the engine. Check the unit for

If you keep the blade sharp and inspect the blade for damage, the blade will cut better and be more safe to operate. Frequently check the blade for excessive wear, cracks, or other damage. Frequently check the nut that holds the blade. Keep the nut tight. If the blade hits an object, stop the engine. Disconnect the wire to the spark plug. See if the blade is bent or damaged. Check the blade adapter for damage. Before you operate the unit, replace damaged parts with original equipment parts. See a Sears Service Center in your area. Every three years, have a qualified service person inspect the blade or replace the old blade with an original equipment part.

damage. The blade has sharp edges. When you

hold the blade, use gloves or cloth material to pro-

tect your hands.

HOW TO REMOVE AND INSTALL THE BLADE

To Remove

1. Remove the mower housing. See the instructions on "How To Remove The Mower Housing".

2. As you loosen the nut, use a piece of wood to keep the blade

from rotating.

3. Remove the nut, washers, and blade (Figure 15).

Hi-Lift

Mandrel

Blade Adapter

Blade

Nut Figure 15

4. Check the blade and the blade adapter according to the instructions for "Inspect Blade". Replace a badly worn or

damaged blade with an original equipment blade. See a Sears Service Center in your area.

5. Clean the top and bottom of the mower housing. Remove all

the grass and debris.

To Install

1. Mount the blade and blade adapter on the mandrel (Figure 15).

2. Mount the blade so that the hi-lift edges are up. If the blade is upside down, the blade will not cut correctly and can

cause an accident.

3. Fasten the blade with the original washers and nut, Make sure the outside rim of the Belleville washer is against the

blade (Figure 16).

_ ARNING: Always keep the nut tight that holds the

F-050607L

blade. A loose nut or blade can cause an accident.

Washer

4. Tighten the nut that holds the blade to a torque of 35 foot pounds.

5. Install the mower housing. See "How To Install The Mower Housing".

BladeAda_Dter__ Blade

s /

Washer

BellevilleWasher _j Nut

(Outside rim must be

against the blade.) I

HOW TO SHARPEN THE BLADE

WARNING: Vibration can be caused if the blade is

_b ot correctly balanced or if the blade is damaged.

Keep a sharp edge on the blade. A blade that is not sharp will cause the tips of the grass to become brown.

1. Sharpen the blade two times a year or every 25 hours.

2. Remove the blade according to the instructions in "How To

3. Clean the blade with a brush, soap and water. Check the

4. Sharpen the blade with a file (Figure 17). Make sure you

5. Make sure the blade is balanced. Use a screwdriver and

6. A new blade will cut better than a badly worn blade. Every

7. Assemble the blade according to the instructions "How To

A blade that is damaged with cracks can break and cause an accident.

Remove And Install The Blade".

blade. Look for cracks, nicks, or other damage. Replace a badly worn or damaged blade with an original equipment

blade. See a Sears Service Center in your area.

keep the original bevel angle.

hold the blade parallel to the ground (Figure 17). A blade that is balanced will stay parallel to the ground. If the blade

is not balanced, the heavy end will rotate toward the ground, Sharpen the heavy end until the blade is balanced.

three years, have a qualified service person inspect the blade or replace the old blade with an original equipment

blade.

Remove And Install The Blade".

Screwdriv__l _ !

I Blade is balanced . File I when parallel to the ground. I

Ground Figure 17

Figure 16

MAINTENANCE FREE BATTERY

MAINTENANCE

HOW TO REMOVE THE BATTERY

To charge or clean the battery, remove the battery from the unit as follows.

WARNING: To prevent sparks, disconnect the black battery cable from the negative (-)terminal before you

_ disconnect the red cable.

1. Disconnect the black cable from the negative (-) terminal

2. Disconnect the red cable from the positive (+) terminal.

3. To disconnect the battery retainer from the battery tray, push

4. Remove the battery from the right side of the unit.

HOW TO CLEAN THE BATTERY

1. Remove the battery.

2. Wash the battery with a solution of one gallon of water and four

WARNING: The battery contains sulfuric acid which is

harmful to the skin, eyes and clothing. If the acid gets

on the body or clothing, wash with water.

(Figure 18).

in on the lower end of the battery retainer.

tablespoons of baking soda (sodium bicarbonate). Make sure the solution does not get into the battery cells.

3. Clean the terminals and the ends of the cables with a wire brush.

4. Install the battery.

5. To prevent corrosion, apply grease to the battery terminals.

HOW TO CHARGE THE BATTERY

_1= WARNING: When you charge the battery, do not

1. Before you charge the battery, remove the battery.

2. To charge the battery, use a 12 volt battery charger. Charge at

3. Install the battery.

_IL WARNING: To prevent sparks, fasten the red cable to

4. Fasten the red cable to the positive (+) terminal with the fas-

5. Mount the battery boot onto the positive (+) terminal.

6. Fasten the black cable to the negative (-) terminal with the fas-

smoke. Keep the battery away from any sparks. The

fumes from the battery acid can cause an explosion.

a rate of 6 amperes for 1 hour.

the positive (+) terminal before you connect the black

cable.

teners as shown.

Positive(+)

Terminal

Battery A

Black Cable

Red Cable

Battery Clamp

Figure 18

F-050607L 23

MAINTENANCE

WHERE TO LUBRICATE

_,,%_ Apply grease with a brush to the areas shown.

Lubricate the areas shown with engine oi!.

NOTE: Apply grease to the steering gear assembly,

CAUTION: If the unit is operated in dry areas that have sand, use a dry graphite spray to lubricate the unit.

Fiure 19

F-050607L 24

MAINTENANCE

ENGINE 2.

HOW TO CHECK THE OIL

NOTE: Do not check the level of the oil while the engine runs.

1. Make sure the unit is level.

2. Clean the area around the dipstick (Figure 20). Remove the dipstick. Wipe the oil from the dipstick.

3. Insert the dipstick into the oil fill tube. Turn the dipstick clock- wise until it is tight. Remove the dipstick. Check the oil level on

the dipstick. The oil level must reach the FULL mark on the

dipstick.

4. If necessary, add oil until the oil reaches the FULL mark on the dipstick. The quantity of oil needed from ADD to FULL is

shown on the dipstick. Do not add too much oil.

Air Screen

Dipstick

* CAUTION: Air cooled engines run hotter than automotive

** CAUTION: SAE 30 oil, if used below 40 ° F (4° C), will result in

Oil Drain Cap

Engine Shroud

Figure 20

NOTE: Although multi-viscosity oils (5W30, 10W30, etc.) improve starting in cold weather, they will result in increased oil consumption when used above 320 F. Check the engine oil level more frequently to avoid possible engine damage from running low on oil.

Remove the oil drain cap. Drain the oil completely from the engine. Install and tighten the oil drain cap.

Only use a high quality detergent oil rated with API service classification SF or SG. Select the oil's SAE viscosity grade according to the expected operating temperature using the temperature chart below:

tion mark and API service symbol (shown at left) with "S J/

NOTE: Synthetic oil meeting ILSAC GF-2, API certifica- CF ENERGY CONSERVING" or higher, is an acceptable

oil at all temperatures. Use of synthetic oil does not alter

required oil change intervals.

Required SAE viscosity grades

F 2p p 2p 321o 1o 8o 1po

c 30 20 1_ _ 15 _0 3'0 40

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

engines. The use of non-synthetic multi-viscosity oils (5W-30,

10W-30, etc.) in temperatures above 40° F (4 ° C) will result in

higher than normal oil consumption. When using a multi-viscosity oil, check oil level more frequently.

hard starting and possible engine bore damage due to inadequate lubrication.

HOW TO CHANGE THE OIL

NOTE: Do not drain the oil from a cold engine. Before you drain the oil, let the engine run for several minutes. Make sure you do

not get oil on the belts.

1. With the engine OFF but still warm, place the engine level and disconnect the wire from the spark plug.

HOW TO CLEAN THE COOLING SYSTEM

The engine is air cooled. The air that cools the engine enters through the air screen on top of the engine. Clean the engine every 100

hours or every year as follows.

1. Remove any grass, dirt or debris from the air screen with a cloth or brush.

2. Inspect the edge of the engine shroud for grass or debris. Remove any grass or debris visible at the bottom edge of the engine shroud.

F-050607L

Clean the area around the dipstick. Remove the dipstick. Slowly pour approximately 48 ounces (3 pints) of oil into the oil

extension tube.

insert the dipstick into the oil extension tube. Turn the dipstick in a clockwise direction until it is tight. Remove the dipstick. Check the oil level on the dipstick. The oil level must reach the FULL mark on the dipstick.

HOW TO CHECK THE MUFFLER

Check the muffler every 50 hours. Make sure the muffler is correctly mounted and is not loose. If the muffler is worn or burnt, replace with a new muffler. A worn muffler is a fire hazard and can damage the engine.

If you mount a spark arrester to the muffler, also check the spark arrester when you check the muffler. If the spark arrester is worn or damaged, replace it with a new spark arrester purchased from a

Sears Service Center.

HOW TO CLEAN THE AIR FILTERS

MAINTENANCE

Some engines have two filters, an outer foam filter around an inner paper filter. Service the foam filter every 25 hours. Service the

paper filter every 100 hours, unless not equipped with the foam filter then service every 25 hours. If you operate in dirty conditions, service more often.

NOTE: Never run the engine with the air filters removed. The air filters will help protect the engine against wear. For the correct replacement filter, see the parts list for the engine.

1. Remove the knob from the cover (Figure 21).

2. Remove the cover from the air cleaner.

3. Remove the nut from the filters.

4. Remove the air filters.

5. Clean the inside of the base and the cover with a cloth.

6. Remove the foam filter from the paper filter.

7. If equipped, wash the foam filter in a detergent and water solu-

tion. To remove the water solution, tightly roll the foam filter in

a dry cloth. Remove the foam filter from the cloth. Completely dry the foam filter.

CAUTION: Do not wash the filters in gasoline or other solvents that will burn.

8. Evenly apply engine oi! to the dry foam filter.

9. To clean the paper filter, lightly tap the paper filter against a hard flat surface.

10. If the paper filter is very dirty, replace the paper filter.

11. Assemble the air filters with the nut.

12. install the cover. Fasten the cover with the knob.

Knob

Figure 21

HOW TO CHECK THE SPARK PLUG

1. Check the gap of the spark plug with a feeler gauge (Figure 22). The correct gap is 0.030".

2. For easy starting and good performance, replace the spark plug every season or 100 hours of use.

F-050607L 26

Feeler Gauge

0.030"

Spark Plug

Figure 22

SERVICE AND ADJUSTMENT

HOW TO ADJUST THE CARBURETOR

Differences in fuel, temperature, altitude or load may require minor carburetor adjustment. The air cleaner and its cover must be assembled to carburetor before starting engine.

The carburetor on this engine is equipped with an idle mixture valve with a limiter (see inset), which allows some minor adjustment, and

an idle speed adjustment screw.

1. To adjust idle speed, start engine and warm up about 5 minutes.

2. With engine running, put the remote throttle control in SLOW position.

3. Rotate the carburetor throttle control lever against the idle speed screw and hold it (see Figure 23). Then, turn the idle speed screw to obtain 1750 rpm (use a tachometer).

4. Rotate the idle mixture valve full travel clockwise and then counterclockwise.

NOTE: DO NOT remove limiter caps. DO NOT force beyond limits.

Then, position idle idle mixture valve in middle of travel.

Move the remote throttle control to the FAST position. The engine should accelerate smoothly. If it does not, adjust the idle

mixture valve counterclockwise 1/8 turn.

NOTE: Engines operated at approximately 3000 to 5000 feet (900 to 1500 meters) above sea level may require a high altitude carburetor nozzle. If erratic performance is observed, contact a Sears Service Center for cost to install or to purchase a high

altitude carburetor nozzle.

Throttle

Lever

Idle Mixture

Valve With

Limiter

Idle Speed

Screw

Figure 23

F-050607L 27

SERVICE AND ADJUSTMENT

HOW TO LEVEL THE MOWER HOUSING

If the mower housing is level, the blade will cut easier and the lawn wi!! look better.

WARNING: Before you make an inspection, adjust-

,_ ment, or repair to the unit, disconnect the wire to the

spark plug. Remove the spark plug wire to prevent the engine from starting by accident.

1. Make sure the unit is on a hard flat surface.

Check the air pressure in the tires. If the air pressure is incor- rect, the mower housing will not cut level. The correct air pres-

sure is shown on the side of the tire.

Make sure the attachment clutch is in the DISENGAGE position.

Open the cover (see Figure 24).

Move the lift lever to the LEVEL ADJUSTMENT position (see Figure 24).

Loosen the front and rear adjuster knobs (see Figure 24 and Figure 25). Make sure both sides of the mower housing are set-

ting on a flat surface.

Level Adjustm_ Position

Cover

Plate

Front Adjuster

Knobs

Lift Lever

Cutting Height

Positions

Rear Adjuster Knob

Figure 24

7. Make sure that the adjuster plate is loose and can easily move up or down (see Figure 25).

Tighten the front and rear adjuster knobs. Make sure the ad- juster knobs are tight. If necessary, use a wrench to tighten the

adjuster knobs. Tighten to a torque of 10 foot pounds (!3,5 N-m).

9. Raise the lift lever from the LEVEL ADJUSTMENT position to a CUTTING HEIGHT position (Figure 26).

10. Close the cover,

11. Attach the spark plug wire to the spark plug.

12. Mow for a short distance. If the height of cut is not level, repeat

the above steps.

CAUTION: Do not operate with the mower housing in the

LEVEL ADJUSTMENT position. If you operate in the LEVEL ADJUSTMENT position, the mower housing and blades can be damaged.

Figure 26

F-050607L 28

SERVICE AND ADJUSTMENT

HOW TO ADJUST THE ATTACHMENT CLUTCH

_ ARNING: To prevent an injury, the attachment

In normal usage, the attachment clutch will not require an adjustment. However, if the cutting performance decreases or the quality of cut is poor, make the following changes.

1. When you mow, make sure the throttle control in in the FAST

2. Move the attachment clutch to the DISENGAGE position

3. Stop the engine. Disconnect the wire from the spark plug.

clutch must operate correctly.

position.

(Figure 27).

Check the blade(s). Keep a sharp edge on the blade(s). A blade that is not sharp will cause the tips of the grass to become

brown.

If the quality of cut has not improved, replace the mower drive belt. See "How To Replace The Mower Drive Belt". If replacing

the belt does not correct the problem, take the unit to a Sears or other qualified service center.

Move the attachment clutch to the DISENGAGE position, Stop the engine. Disconnect the wire from the spark plug.

7. Check the operation of the blade brake, Rotate the pulley with your hand. Make sure the brake pad is pressed tightly against the pulley (Figure 28).

_ ARNING: If the brake pad does not press tightly

8. Move the attachment clutch to the ENGAGE position.

10. Attach the wire to the spark plug. Mow for a short distance and

against the pulley, take the unit to a Sears or other qu- alified service center.

Check the pad for the blade brake, If the pad is excessively worn or damaged, replace the brake pad assemblies. Correct replacement parts and assistance are available from a Sears

service center.

again check the operation of the attachment clutch.

Attachment Clutch

Engage Position

Figure 27

11.

When you move the attachment clutch to the DISENGAGE position, all movement will stop within five seconds. Ifthere is

movement of the belt or the blades continue to rotate, engage and disengage the attachment clutch five times to remove any excess rubber from a new mower drive belt, Ifyou need assistance, take the unit to a Sears or other qualified service

center.

Blade Brake

(Pad Against Pulley)

F-O50607L 29

Figure 28

SERVICE AND ADJUSTMENT

HOW TO REMOVE THE MOWER HOUSING

1. Move the attachment clutch to the DISENGAGE position.

2. Move the lift lever to the level adjustment position (Figure 29).

NOTE: Make sure the lift lever is locked in the LEVEL

ADJUSTMENT position.

3. Remove the hair pins and the washers from the rear suspen-

sion arms (Figure 30). See il..................

lustrations "C" and "D". LevelAdjustment

4. Remove the hair pins and wash- Position Figure29 ers from the suspension links.

See illustrations "A" and "B".

5. Disconnect the extension spring from the blade control rod. See illustration "E".

6. Disconnect the front hanger from the frame support. See illustration "F".

7. Remove the mower drive belt from the stack pulley. See i!lustration "G".

8. Pull the mower housing away from the right side of the unit,

9. To operate without the mower housing, move the lift lever to the

TOP position.

Lift Lever

Attachment

Clutch

3acer Tube

HOW TO INSTALL THE MOWER HOUSING

1. Push the mower housing under the right side of the unit.

2. Put the mower drive belt around the stack pulley. Make sure the '_/" side of the mower drive belt is against the stack pulley.

Also, make sure the mower drive belt is not twisted,

3. Attach the front hanger to the frame support with the hanger rod. Fasten with the fasteners as shown, See illustration "F".

4. Make sure the mower drive belt is between the stack pulley and the two belt guides. See illustration "G".

5. Attach the suspension links to the lifter assembly. Fasten with the washers and hair pins, See illustrations "A" and "B".

6. Attach the rear suspension arms to the suspension brackets, Fasten with the washers and hair pins. See illustrations "C" and

==D _.

7. Attach the extension spring to the blade control rod. See illustration "E".

8. Move the attachment clutch to the ENGAGE position. Make sure the mower drive belt is inside all the belt guides and is also below the spacer tube.

9. Make sure the mower housing is level. See the instructions on "How To Level The Mower Housing",

10. Check the operation of the attachment clutch. See the instruc- tions on "How To Adjust The Attachment Clutch".

D' Lifter

Adjuster

Arm

SuspensionLink

F-050607L 30

Adjuster

Arm

Mower

Drive Belt

Assembly

Suspension

Link

B Hanger Rod

Front Hanger

Extension

Spring

Figure 30

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