Toro 08160SL User manual

Part No. 08160SL (Rev. A)

Service Manual

Workman

R

MD&MDX

Preface

The purpose of this publication is to provide the service

technician with information for troubleshooting, testing

and repair of major systems and components on the

Workman MD and Workman MDX.

REFER TO THE OPERATOR’S MANUAL FOR OPER-

ATING, MAINTENANCE AND ADJUSTMENT IN-

STRUCTIONS. For reference, insert a copy of the

Operator’s Manual and Parts Catalog for your machine

into Chapter 2 of this service manual. Additional copies

of the Operator’s Manual and Parts Catalog are avail-

able on the internet at www.Toro.com.

The Toro Company reserves the right to change product

specifications or this publication without notice.

This safety symbol means DANGER, WARNING,

or CAUTION, PERSONAL SAFETY INSTRUC-

TION. When you see this symbol, carefully read

the instructions that follow. Failure to obey the

instructions may result in personal injury.

NOTE: A NOTE will give general information about the

correct operation, maintenance, service, testing or re-

pair of the machine.

IMPORTANT: The IMPORTANT notice will give im-

portant instructions which must be followed to pre-

vent damage to systems or components on the

machine.

E Th e Toro Company -- 2008, 2011

Workman MD/MDX

This page is intentionally blank.

Rev. A

Workman MD/MDX

Table Of Contents

Chapter 1 -- Safety

Safety Instructions 1 -- 2..........................

Jacking and Other Instructions 1 -- 4...............

Safety and Instruction Decals 1 -- 6................

Chapter 2 -- Product Records and Maintenance

Product Records 2 -- 1...........................

Maintenance 2 -- 1...............................

Equivalents and Conversions 2 -- 2................

Torque Specifications 2 -- 3.......................

Chapter 3 -- Briggs & Stratton Gasoline Engine

General Information 3 -- 2........................

Specifications 3 -- 3..............................

Adjustments 3 -- 4...............................

Service and Repairs 3 -- 5........................

Briggs and Stratton Repair Manual for 4--Cycle, V--T win

Cylinder , OHV Head Engines

Chapter 4 -- Single Cylinder Gasoline Engine

General Information 4 -- 2........................

Specifications 4 -- 3..............................

Adjustments 4 -- 4...............................

Service and Repairs 4 -- 5........................

Kohler Service Manual for COMMAND PRO CS Series

Engines

Chapter 5 -- Drive Train

General Information 5 -- 1........................

Specifications 5 -- 2..............................

Drive Train Operation 5 -- 3.......................

Special Tools 5 -- 6..............................

Adjustments 5 -- 7...............................

Service and Repairs 5 -- 10.......................

Chapter 6 -- Electrical System

General Information 6 -- 2........................

Electrical Schematics 6 -- 2.......................

Special Tools 6 -- 3..............................

T roubleshooting 6 -- 5............................

Electrical System Quick Checks 6 -- 7..............

Component Testing 6 -- 8.........................

Service and Repairs 6 -- 18.......................

Chapter 7 -- Chassis

General Information 7 -- 1........................

Specifications 7 -- 2..............................

Special Tools 7 -- 2..............................

T roubleshooting 7 -- 3............................

Adjustments 7 -- 6...............................

Service and Repairs 7 -- 9........................

Chapter 8 -- Electrical Drawings

Electrical Schematics 8 -- 3.......................

Circuit Diagrams 8 -- 5...........................

Electrical Harness Drawings 8 -- 7.................

SafetyProduct Records

and Maintenance

Briggs & Stratton

Gasoline Engine

Drive TrainElectrical

System

Electrical

Drawings

Chassis

Single Cylinder

Gasoline Engine

Workman MD/MDX

This page is intentionally blank.

Workman MD/MDX Page 1 -- 1 Safety

Chapter 1

Safety

Table of Contents

SAFETY INSTRUCTIONS 2......................

Supervisor’s R esponsibilities 2.................

Before Operating 2............................

While Operating 3.............................

Maintenance and Service 3....................

JACKING AND OTHER INSTRUCTIONS 4.........

Jack Vehicle 4................................

Transport Vehicle 4...........................

Tow Vehicle 4................................

Transaxle Neutral Position 5....................

SAFETY AND INSTRUCTION DECALS 6..........

Safety

Workman MD/MDXPage 1 -- 2Safety

Safety Instructions

The Workman MD and MDX series vehicles are de-

signed and tested to offer safe service when operated

and maintained properly. Although hazard control and

accident prevention partially are dependent upon the

design and configuration of the machine, these factors

are also dependent upon the awareness, concern and

proper training of the personnel involved in the opera-

tion, transport, maintenance and storage of the ma-

chine. Improper use or maintenance of the machine can

result in injury or death.

Read and understand the contents of the Operator’s

Manual before starting and operating the machine. Be-

come familiar with all controls and know how to stop it

quickly. Additional copies of the Operator’s Manual are

available on the internet at www.Toro.com.

The safety alert symbol means

CAUTION, WARNING or DANGER —

“personal safety instruction”. Read

and understand the instruction because it has to

do with safety. Failure to comply with the instruc-

tion may result in personal injury.

WARNING

To reduce the potential for injury or death, comply

with the following safety instructions.

WARNING

The Workman is an off--highway vehicle only. It is

not designed, equipped or manufactured for use

on public streets, roads or highways.

Supervisor’s Responsibilities

1. Make sure operators are thoroughly trained and fa-

miliar with the Operator’s Manual and all labels on the

vehicle.

2. Be sure to establish your own special procedures

and work rules for unusual operating conditions (e.g.

slopes too steep for vehicle operation).

Before Operating

1. Read and understand the contents o f the Operator’s

Manual and Operator’s DVD before starting and operat-

ing the vehicle. Become familiar with the controls and

know how to stop the vehicle and engine quickly. Addi-

tional copies of the Operator’s Manual are available on

the internet at www.Toro.com.

2. Keep all shields, safety devices and decals in place.

If a shield, safety device or decal is defective, illegible or

damaged, repair or replace it before operating the ve-

hicle. Also, tighten any loose nuts, bolts or screws to en-

sure vehicle is in safe operating condition.

3. Since fuel used in Workman vehicles is highly flam-

mable, handle it carefully:

A. Store fuel in containers specifically designed for

this purpose.

B. Do not remove vehicle fuel tank cap while engine

is hot or running.

C. Do not smoke while handling fuel.

D. Fill fuel tank outdoors and only to within an inch of

the top of the tank, not the filler neck. Do not overfill

the fuel tank.

E. Clean up any spilled fuel.

Workman MD/MDX Page 1 -- 3 Safety

While Operating

1. Sit on the operator seat when starting and operating

the vehicle.

2. Before starting the engine:

A. Sit on operator’s seat and apply the parking

brake.

B. Turn ignition key to ON.

C. Depress accelerator pedal to start engine and en-

gage drive system.

3. Do not run engine in a confined area without ade-

quate ventilation. Exhaust fumes are hazardous and

could possibly be deadly.

4. Do not touch engine, muffler or exhaust pipe while

engine is running or soon after it is stopped. These areas

could be hot enough to cause burns.

5. Before getting off the seat:

A. Stop movement of the vehicle.

B. Turn ignition key to OFF and wait for all move-

ment to stop.

C. Remove key from ignition switch.

D. Apply parking brake.

E. Do not park on slopes unless wheels are chocked

or blocked.

Maintenance and Service

1. Before servicing or making adjustments, turn all ac-

cessories off, release pressure from accelerator pedal,

allow engine to stop, set parking brake and remove key

from the ignition switch.

2. Make sure vehicle is in safe operating condition by

keeping all nuts, bolts and screws tight.

3. Never store the vehicle or fuel container inside

where there is an open flame, such as near a water heat-

er or furnace.

4. If major repairs are ever needed or assistance is de-

sired, contact an Authorized Toro Distributor.

5. To reduce potential fire hazard, keep engine area

free of excessive grease, grass, leaves and dirt.

6. If engine must be running to perform maintenance or

an adjustment, keep clothing, hands, feet and other

parts of the body away from moving parts. Keep by-

standers away.

7. Do not overspeed the engine by changing governor

setting. To assure safety and accuracy, check maximum

engine speed.

8. Shut engine off before checking or adding oil to the

engine crankcase.

9. Disconnect battery before servicing the vehicle. Dis-

connect negative (--) battery cable first and positive (+)

cable last. If battery voltage is required for troubleshoot-

ing or test procedures, temporarily connect the battery.

Reconnect positive (+) cable first and negative (--) cable

last.

10.Battery acid is poisonous and can cause burns.

Avoid contact with skin, eyes and clothing. Protect your

face, eyes and clothing when working with a battery.

11. Battery gases can explode. Keep cigarettes, sparks

and flames away from the battery.

12.To assure optimum performance and continued

safety of the vehicle, use genuine Toro replacement

parts and accessories. R eplacement parts and acces-

sories made by other manufacturers may result in non-

conformance with safety standards, and the warranty

may be voided.

13.When raising the vehicle to change tires or to per-

form other service, use correct blocks, hoists and jacks.

Make sure vehicle is parked on a solid level surface such

as a concrete floor. Prior to raising the vehicle, remove

any attachments that may interfere with the safe and

proper raising of the vehicle. Always chock or block

wheels. Use appropriate jack stands to support the

raised vehicle. If the vehicle is not properly supported by

jack stands, the vehicle may move or fall, which may re-

sult in personal injury (see Jacking Instructions in this

section).

Safety

Workman MD/MDXPage 1 -- 4Safety

Jacking and Other Instructions

Jack Vehicle

DANGER

POTENTIAL HAZARD

• A vehicle that is not properly supported

may become unstable.

WHAT CAN HAPPEN

• The vehicle may move or fall. Personal

injury or damage to the machine may result.

HOW TO AVOID THE HAZARD

• Make sure vehicle is parked on a solid level

surface, such as a concrete floor.

• Make sure engine is off and key is removed

from the ignition switch before getting off

the vehicle.

• Before raising the vehicle, remove any

attachments that may interfere with the safe

and proper raising of the vehicle.

• Always chock or block wheels to prevent

the vehicle from rolling.

• Do not start vehicle while it is on jack

stands without placing transaxle in neutral.

• Make sure proper hoists, jacks and jack

stands are used to raise and support t he

vehicle.

Jacking Locations

1. Jack front of the vehicle on the front of the frame and

behind the towing tongue (Fig. 1).

2. Jack rear of the vehicle under each rear axle tube. Do

not jack vehicle below the transaxle case (Fig. 2).

1. Front frame 2. Towing tongue

Figure 1

1

2

1. Transaxle case 2. Axle tube

Figure 2

2

1

Transport Vehicle

When moving the vehicle long distances, use a trailer or

flatbed truck. Make sure vehicle is secured to the trailer

properly. Refer to Operator’s Manual for transport infor-

mation.

Tow Vehicle

IMPORTANT: Frequent or long distance towing of

the Workman is not recommended.

In case of emergency, the vehicle c an be towed for a

short distance. Refer to Operator’s Manual for towing

information.

IMPORTANT: If vehicle is towed, make sure that

ignition switch is in the OFF position and key is re-

moved from switch.

Workman MD/MDX Page 1 -- 5 Safety

Transaxle Neutral Position

When performing routine maintenance and/or engine

testing, the transaxle must be shifted into the neutral

position.

1. Park machine on a level surface, stop engine, set

parking brake and remove key from the ignition switch.

2. Move shift lever to the neutral position (Fig. 3).

3. Make sure transaxle is in the neutral position by ro-

tating the driven clutch. The tires should not rotate. If tire

rotation does occur, see Adjust Shift Cables in the Ad-

justment section of Chapter 5 -- Drive Train.

1. Shift lever (in neutral)

2. Forward position

3. Reverse position

Figure 3

1

3

2

Safety

Workman MD/MDXPage 1 -- 6Safety

Safety and Instruction Decals

Numerous safety and instruction decals are affixed to

your Workman. If any decal becomes illegible or dam-

aged, install a new decal. Part numbers are listed in the

Parts Catalog. Order replacement decals from your Au-

thorized Toro Distributor.

Workman MD/MDX Page 2 -- 1 Product Records and Maintenance

Chapter 2

Product Records and Maintenance

Table of Contents

PRODUCT RECORDS 1.........................

MAINTENANCE 1...............................

EQUIVALENTS AND CONVERSIONS 2...........

Decimal and Millimeter Equivalents 2............

U.S. to Metric Conversions 2...................

TORQUE SPECIFICATIONS 3....................

Fastener Identification 3.......................

Standard Torque for Dry, Zinc Plated and

Steel Fasteners (Inch Series). 4...............

Standard Torque for Dry, Zinc Plated and

Steel Fasteners (Metric Fasteners). 5..........

Other Torque Specifications 6..................

Conversion Factors 6..........................

Product Records

Insert Operator’s Manual and Parts Catalog for your

Workman at the end of this chapter. Additionally, if any

optional equipment or accessories have been installed

to your machine, insert the Installation Instructions, Op-

erator’s Manuals and Parts Catalogs for those options

at the end of this chapter.

Maintenance

Maintenance procedures and recommended service in-

tervals for your Workman are covered in the Operator’s

Manual. Refer to that publication when performing regu-

lar equipment maintenance.

Product Records

and Maintenance

0.09375

Workman MD/MDXPage 2 -- 2Product Records and Maintenance

Equivalents and Conversions

Workman MD/MDX Page 2 -- 3 Product Records and Maintenance

Torque Specifications

Recommended fastener torque values are listed in the

following tables. For critical applications, as determined

by Toro, either the recommended torque or a torque that

is unique to the application is clearly identified and spe-

cified in this Service Manual.

These Torque Specifications for the installation and

tightening of fasteners s hall apply to all fasteners which

do not have a specific requirement identified in this Ser-

vice Manual. The following factors shall be considered

when applying torque: cleanliness of the fastener, use

of a thread sealant (e.g. Loctite), degree of lubrication

on the fastener, presence of a prevailing torque feature,

hardness of the surface underneath the fastener’s head

or similar condition which affects the installation.

As noted in the following tables, torque values should be

reduced by 25% for lubricated fasteners to achieve

the s imilar stress as a dry fastener. Torque values may

also have to be reduced when the fastener is threaded

into aluminum or brass. The specific torque value

should be determined based on the aluminum or brass

material strength, fastener size, length of thread en-

gagement, etc.

The standard method of verifying torque shall be per-

formed by marking a line on the fastener (head or nut)

and mating part, then back off fastener 1/4 of a turn.

Measure the torque required to tighten the fastener until

the lines match up.

Fastener Identification

Figure 1

Grade 1 Grade 5 Grade 8

Inch Series Bolts and Screws

Figure 2

Class 8.8 Class 10.9

Metric Bolts and Screws

Product Records

and Maintenance

Workman MD/MDXPage 2 -- 4Product Records and Maintenance

Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series)

Thread Size

Grade 1, 5 &

8withThin

Height Nuts

SAE Grade 1 Bolts, Screws, Studs &

Sems with Regular Height Nuts

(SAE J995 Grade 2 or Stronger Nuts)

SAE Grade 5 Bolts, Screws, Studs &

Sems with Regular Height Nuts

(SAE J995 Grade 2 or Stronger Nuts)

SAE Grade 8 Bolts, Screws, Studs &

Sems with Regular Height Nuts

(SAE J995 Grade 5 or Stronger Nuts)

in--lb in--lb N--cm in--lb N--cm in--lb N--cm

# 6 -- 32 UNC

1

0

+

2

1

3

+

2

1

4

7

+

2

3

15 + 2 170 + 20 23 + 2 260 + 20

# 6 -- 40 UNF

10 + 2 13 + 2 147 + 23

17 + 2 190 + 20 25 + 2 280 + 20

# 8 -- 32 UNC

1

3

+

2

5

+

5

2

8

2

+

3

0

29 + 3 330 + 30 41 + 4 460 + 45

# 8 -- 36 UNF

13 + 2 25 + 5 282 + 30

31 + 3 350 + 30 43 + 4 485 + 45

#10--24UNC

1

8

+

2

3

0

+

5

3

9

+

5

6

42 + 4 475 + 45 60 + 6 675 + 70

#10--32UNF

18 + 2 30 + 5 339 + 56

48 + 4 540 + 45 68 + 6 765 + 70

1/4 -- 20 UNC 48 + 7 53 + 7 599 + 79 100 + 10 1125 + 100 140 + 15 1580 + 170

1/4 -- 28 UNF 53 + 7 65 + 10 734 + 113 115 + 10 1300 + 100 160 + 15 1800 + 170

5/16 -- 18 UNC 115 + 15 105 + 17 1186 + 169 200 + 25 2250 + 280 300 + 30 3390 + 340

5/16 -- 24 UNF 138 + 17 128 + 17 1446 + 192 225 + 25 2540 + 280 325 + 30 3670 + 340

ft--lb ft--lb N--m ft--lb N--m ft--lb N--m

3/8 -- 16 UNC 16 + 2 16 + 2 22 + 3 30 + 3 41 + 4 43 + 4 58 + 5

3/8 -- 24 UNF 17 + 2 18 + 2 24 + 3 35 + 3 47 + 4 50 + 4 68 + 5

7/16 -- 14 UNC 27 + 3 27 + 3 37 + 4 50 + 5 68 + 7 70 + 7 95 + 9

7/16 -- 20 UNF 29 + 3 29 + 3 39 + 4 55 + 5 75 + 7 77 + 7 104 + 9

1/2 -- 13 UNC 30 + 3 48 + 7 65 + 9 75 + 8 102 + 11 105 + 10 142 + 14

1/2 -- 20 UNF 32 + 3 53 + 7 72 + 9 85 + 8 115 + 11 120 + 10 163 + 14

5/8 -- 11 UNC 65 + 10 88 + 12 119 + 16 150 + 15 203 + 20 210 + 20 285 + 27

5/8 -- 18 UNF 75 + 10 95 + 15 129 + 20 170 + 15 230 + 20 240 + 20 325 + 27

3/4 -- 10 UNC 93 + 12 140 + 20 190 + 27 265 + 25 359 + 34 375 + 35 508 + 47

3/4 -- 16 UNF 115 + 15 165 + 25 224 + 34 300 + 25 407 + 34 420 + 35 569 + 47

7/8 -- 9 UNC 140 + 20 225 + 25 305 + 34 430 + 45 583 + 61 600 + 60 813 + 81

7/8 -- 14 UNF 155 + 25 260 + 30 353 + 41 475 + 45 644 + 61 660 + 60 895 + 81

NOTE: Reduce torque values listed in the table above

by 25% for lubricated fasteners. Lubricated fasteners

are defined as threads coated with a lubricant such as

oil, graphite or thread sealant such as Loctite.

NOTE: Torque values may have to be r educed when

installing fasteners into threaded aluminum or brass.

The specific torque value should be determined based

on the fastener size, the aluminum or base material

strength, length of thread engagement, etc.

NOTE: The nominal torque values listed above for

Grade 5 and 8 fasteners are based on 75% of the mini-

mum proof load specified in SAE J429. The tolerance is

approximately +

10% of the nominal torque value. Thin

height nuts include jam nuts.

Workman MD/MDX Page 2 -- 5 Product Records and Maintenance

Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners)

T

h

r

e

a

d

S

i

z

e

Class 8.8 Bolts, Screws and Studs with

R

e

g

u

l

a

r

H

e

i

g

h

t

N

u

t

s

Class 10.9 Bolts, Screws and Studs with

R

e

g

u

l

a

r

H

e

i

g

h

t

N

u

t

s

Thread Size Regular Height Nuts

(Class 8 or Stronger Nuts)

Regular Height Nuts

(Class 10 or Stronger Nuts)

M5 X 0.8 57 + 5in--lb 640 + 60 N--cm 78 + 7in--lb 885 + 80 N--cm

M6 X 1.0 96 + 9in--lb 1018 + 100 N--cm 133 + 13 in--lb 1500 + 150 N--cm

M8 X 1.25 19 + 2ft--lb 26 + 3N--m 27 + 2ft--lb 36 + 3N--m

M10 X 1.5 38 + 4ft--lb 52 + 5N--m 53 + 5ft--lb 72 + 7N--m

M12 X 1.75 66 + 7ft--lb 90 + 10 N--m 92 + 9ft--lb 125 + 12 N--m

M16 X 2.0 166 + 15 ft--lb 225 + 20 N--m 229 + 22 ft--lb 310 + 30 N--m

M20 X 2.5 325 + 33 ft--lb 440 + 45 N--m 450 + 37 ft--lb 610 + 50 N--m

NOTE: Reduce torque values listed in the table above

by 25% for lubricated fasteners. Lubricated fasteners

are defined as threads coated with a lubricant such as

oil, graphite or thread sealant such as Loctite.

NOTE: Torque values may have to be r educed when

installing fasteners into threaded aluminum or brass.

The specific torque value should be determined based

on the fastener size, the aluminum or base material

strength, length of thread engagement, etc.

NOTE: The nominal torque values listed above are

based on 75% of the minimum proof load specified in

SAE J1199. The tolerance is approximately +

10% of the

nominal torque value.

Product Records

and Maintenance

Workman MD/MDXPage 2 -- 6Product Records and Maintenance

Other Torque Specifications

SAE Grade 8 Steel Set Screws

T

h

r

e

a

d

S

i

z

e

Recommended Torque

Thread Size

Square Head Hex Socket

1/4 -- 20 UNC 140 + 20 in--lb 73 + 12 in--lb

5/16 -- 18 UNC 215 + 35 in--lb 145 + 20 in--lb

3/8 -- 16 UNC 35 + 10 ft--lb 18 + 3ft--lb

1/2 -- 13 UNC 75 + 15 ft--lb 50 + 10 ft--lb

Thread Cutting Screws

(Zinc Plated Steel)

Type 1, Type 23 or Type F

Thread Size Baseline Torque*

No. 6 -- 32 UNC 20 + 5in--lb

No. 8 -- 32 UNC 30 + 5in--lb

No. 10 -- 24 UNC 38 + 7in--lb

1/4 -- 20 UNC 85 + 15 in--lb

5/16 -- 18 UNC 110 + 20 in--lb

3/8 -- 16 UNC 200 + 100 in--lb

Wheel Bolts and Lug Nuts

Thread Size

Recommended Torque**

7/16 -- 20 UNF

Grade 5

65 + 10 ft--lb 88 + 14 N--m

1/2 -- 20 UNF

Grade 5

80 + 10 ft--lb 108 + 14 N--m

M12 X 1.25

Class 8.8

80 + 10 ft--lb 108 + 14 N--m

M12 X 1.5

Class 8.8

80 + 10 ft--lb 108 + 14 N--m

** For steel wheels and non--lubricated fasteners.

Thread Cutting Screws

(Zinc Plated Steel)

Thread

S

i

z

e

Threads per Inch

B

a

s

e

l

i

n

e

T

o

r

q

u

e

*

Size

Type A Type B

Baseline Torque

*

No. 6 18 20 20 + 5in--lb

No. 8 15 18 30 + 5in--lb

No. 10 12 16 38 + 7in--lb

No. 12 11 14 85 + 15 in--lb

* Hole size, material strength, material thickness and fin-

ish must be considered when determining specific

torque values. All torque values are based on non--lubri-

cated fasteners.

Conversion Factors

in--lb X 11.2985 = N--cm N--cm X 0.08851 = in-- lb

ft--lb X 1.3558 = N--m N--m X 0.7376 = ft--lb

Workman MDX Page 3 -- 1 Briggs & Stratton Gasoline Engine

Chapter 3

Briggs & Stratton Gasoline Engine

Table of Contents

GENERAL INFORMATION 2.....................

Operator’s Manual 2..........................

SPECIFICATIONS 3.............................

ADJUSTMENTS 4..............................

Adjust Throttle Cable 4........................

SERVICE AND REPAIRS 5......................

Cooling System 5.............................

Air Cleaner 6.................................

Exhaust System 8............................

Fuel Tank 10.................................

Oil Filter Assembly 12.........................

Engine 14....................................

Engine Removal 15..........................

Engine Installation 16........................

BRIGGS & STRATTON REPAIR MANUAL FOR

4--CYCLE, V--TWIN CYLINDER, OHV HEAD EN-

GINES

Briggs & Stratton

Gasoline Engine

Workman MDXPage 3 -- 2Briggs & Stratton Gasoline Engine

General Information

This Chapter gives information about specifications,

maintenance, troubleshooting, testing and repair of the

V--twin cylinder, gasoline engine used in the Workman

MDX.

Most repairs and adjustments require tools which are

commonly available in many service shops. Special

tools are described in the Briggs & Stratton Repair

Manual for 4--Cycle, V--Twin Cylinder, OHV Head En-

gines. The use of some specialized test equipment is ex-

plained. However, the cost of the test equipment and the

specialized nature of some repairs may dictate that the

work be done at an engine repair facility.

Service and repair parts for Briggs & Stratton engines

are supplied through your local Toro distributor. If no

parts list is available, be sure to provide your distributor

with the Toro model and serial number.

Operator’s Manual

The Operator’s Manual provides information regarding

the operation, general maintenance and maintenance

intervals for your Workman MDX vehicle. Refer to the

Operator’s Manual for additional information when ser-

vicing the machine.

Workman MDX Page 3 -- 3 Briggs & Stratton Gasoline Engine

Specifications

Item Description

Make / Designation Briggs and Stratton, 4--cycle, V--Twin Cylinder,

OHV, Air Cooled, Gasoline Engine -- Model 303440

Bore x Stroke 2.68” x 2.60” (68 mm x 66 mm)

Total Displacement 29.3 in

3

(480 cc)

Governor Mechanical Governor

Carburetor Float Feed, Single Barrel

Fuel Pump Pulsating Crankcase Vacuum

Fuel Unleaded, regular grade gasoline

Fuel Tank Capacity 7.0 U.S. gal (26.5 l)

Lubrication System Pressure Lubrication, Gear Driven Geroter Oil Pump

Crankcase Oil Capacity 1.75 U.S. qt (1.66 l) with new filter

Engine Oil See Operator’s Manual

Ignition System Flywheel magneto, twin electronic armatures

Spark Plugs Champion RC 12YC (or equivalent)

Spark Plug Gap 0.030” (0.76 mm)

Starter/Generator 10.5 VDC 100 Amps/14 VDC and 23 Amps

Dry Weight (approximate) 72 lb (32.4 kg)

Briggs & Stratton

Gasoline Engine

Workman MDXPage 3 -- 4Briggs & Stratton Gasoline Engine

Adjustments

Adjust Throttle Cable

NOTE: The Workman MDX is equipped with an engine

governor. Refer to the Briggs & Stratton Repair Manual

at the end of this chapter for governor information on

these machines.

Depressing the accelerator pedal rotates the engine

governor bellcrank which tensions the main governor

spring to increase engine speed. Releasing the acceler-

ator pedal decreases governor spring tension to r educe

engine speed.

1. Park machine on a level surface, stop engine, en-

gage parking brake and remove key from the ignition

switch.

2. Lift cargo box and prop with rod to gain access to the

engine.

3. When the accelerator pedal is fully depressed the

engine governor bellcrank mechanism should have a

gap from 0.030” to 0.080” (0.8 to 2.0 mm) (Fig. 2 ). If nec-

essary, adjust jam nuts on accelerator cable so that gap

is correct.

4. After throttle cable adjustment is correct, lower and

secure cargo box.

Figure 1

1. Throttle cable 2. Governor bellcrank

1

2

ACCELERATOR

PEDAL RELEASED

Figure 2

1. Throttle cable

2. Governor bellcrank

3. Gap

3

1

2

ACCELERATOR

PEDAL DEPRESSED

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