Toro 13AL60RG044, 13AL60RG048, 13AL60RG544, 13AP60RP544, 13AP60RP744 Service Manual

...
0 (0)

Consumer Products

LX Lawn

Tractor

Service Manual

TABLE OF CONTENTS

SAFETY INFORMATION

 

 

 

 

General Information . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . 1-1

Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

SPECIFICATIONS

 

 

 

 

Torque Specifications . . . . . . . . . . . . . . . . . . . . . .

. . .

. . .

. . . . . 2-1

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

. . .

. . .

. . . . . 2-2

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

. . . . . . . . . . . 2-3

Other Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Equivalents and Conversions . . . . . . . . . . . . . . . . . . .

. . .

. . .

. . .

. . 2-5

Product Specifications . . . . . . . . . . . . . . . . . . . . . .

. . .

. . .

. . .

. . 2-6

CHASSIS

Front Pivot Axle Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-7

Axle Assembly Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-17

Steering Wheel Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-20

Steering Shaft Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-24

Electric PTO Clutch Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-28

Fuel Tank Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-30

Hood Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-32

Fender Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-39

Tower Replacement

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-53

Lower Transmission Drive Belt Replacement - Gear Drive Models

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-64

Upper Transmission Drive Belt Replacement - Gear Drive Models

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . .

.

. . . . . .

. . . . . .

. .

. . . .

.

.

. 3-67

Installation . . . . . . . . . . . . . .

.

. . . . . .

. . . . . .

. .

. . . .

.

.

. 3-69

Transmission Drive Belt (Hydro) Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

. . 3-74

Variable Speed Pulley Replacement

 

 

 

 

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3-77

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

.

.

.

.

.

. 3-79

LX Lawn Tractor Service Manual

i

TABLE OF CONTENTS

CHASSIS cont.

 

 

 

 

Variable Speed Pulley Service

 

 

 

 

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . .

. . 3-81

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-82

Purging the System - Hydrostatic Models . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-82

Fluid Change - Hydrostatic Models . . . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-83

Neutral Adjustment - Hydrostatic Models . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-84

Front Wheel Toe-in Measurement . . . . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-85

Front Wheel Toe-in Adjustment . . . . . . . . . . . . . . . . . . . . . .

. . . . . .

.

.

3-86

Autodrive Pedal Adjustment - Hydrostatic Models . . . . . . . . . . . . . . .

. . . . . . . . 3-87

Brake Adjustment - Hydrostatic Models . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91

Throttle/Choke Cable Replacement

 

 

 

 

Removal . . . . . . . . . . . . . .

. . . . . .

. . . . . .

. . . . . . . .

.

.

. 3-93

Installation . . . . . . . . . . . . .

. . . . . .

. . . . . .

. . . . . . . .

.

.

. 3-96

ENGINE

Engine Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

GEAR DRIVE SYSTEM

CVT Transmission Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

. 5-4

Brake Puck Replacement

 

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . 5-9

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 5-11

Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

. 5-14

HYDROSTATIC DRIVE SYSTEM Hydro Transmission Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

MOWER DECK

42” Mower Deck - Brake Idler Assembly Replacement

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-3

42” Mower Deck - Idler Assembly Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-8

42” Mower Belt Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-13

46” Mower Deck - RH Idler Bracket Assembly

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-16

46” Mower Deck - Brake Assembly

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-20

46” Mower Deck - LH Idler Assembly

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.

. . 7-23

ii

LX Lawn Tractor Service Manual

TABLE OF CONTENTS

MOWER DECK cont.

46” Mower Deck - Lower Idler Bracket

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-26

46” Mower Deck - Lower Mower Deck Belt Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-30

46” Mower Deck - Upper Mower Deck Belt Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-35

50” Mower Deck - Belt Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-38

50” Mower Deck - Idler Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-41

42” Mower Deck - Spindle Replacement

 

 

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-45

42” Mower Deck - Spindle Service . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-47

46” Mower Deck - Double Pulley Spindle Service . . . . . . . . . . . . . . .

. . . . .

. . 7-51

46” Mower Deck - Single Pulley Spindle Service . . . . . . . . . . . . . . . .

. . . . .

. . 7-56

50” Mower Deck - Spindle Service . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-60

42” Mower Deck Removal . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-64

42” Mower Deck Installation . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-67

46” Mower Deck Removal . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-69

46” Mower Deck Installation . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 7-72

50” Mower Deck Removal . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . 7-74

50” Mower Deck Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-76

ELECTRICAL

 

 

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

. . 8-1

LX Lawn Tractor Service Manual

iii

TABLE OF CONTENTS

THIS PAGE INTENTIONALLY LEFT BLANK.

iv

LX Lawn Tractor Service Manual

SAFETY INFORMATION

General Information

The riding mower and attachment operator's manual

1

This symbol means WARNING or

contain safety information and operating tips for safe

PERSONAL SAFETY INSTRUCTION

operating practices. Operator's manuals are available

 

- read the instruction because it has to

through your Toro parts source or:

 

do with your safety. Failure to comply

The Toro Company

 

with the instruction may result in

 

personal injury or even death.

Publications Department

 

 

8111 Lyndale Avenue South

 

This manual is intended as a service and repair

Bloomington, MN 55420

 

manual only. The safety instructions provided herein

 

 

are for troubleshooting, service, and repair of the

LX Series Riding Lawn Tractor.

Think Safety First

Avoid unexpected starting of engine...

Always turn off the engine and disconnect the spark plug wire(s) before cleaning, adjusting, or repair.

Avoid lacerations and amputations...

Stay clear of all moving parts whenever the engine is running. Treat all normally moving parts as if they were moving whenever the engine is running or has the potential to start.

Avoid burns...

Do not touch the engine, muffler, or other components which may increase in temperature during operation, while the unit is running or shortly after it has been running.

Avoid fires and explosions...

Avoid spilling fuel and never smoke while working with any type of fuel or lubricant. Wipe up any spilled fuel or oil immediately. Never remove the fuel cap or add fuel when the engine is running. Always use approved, labeled containers for storing or transporting fuel and lubricants.

Avoid asphyxiation...

Never operate an engine in a confined area without proper ventilation.

Avoid injury from batteries...

Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Battery gases can explode. Keep cigarettes, sparks, and flames away from the battery.

Avoid injury due to inferior parts...

Use only original equipment parts to ensure that important safety criteria are met.

Avoid injury to bystanders...

Always clear the area of bystanders before starting or testing powered equipment.

Avoid injury due to projectiles...

Always clear the area of sticks, rocks, or any other debris that could be picked up and thrown by the powered equipment.

Avoid modifications...

Never alter or modify any part unless it is a factory approved procedure.

Avoid unsafe operation...

Always test the safety interlock system after making adjustments or repairs on the machine. Refer to the Electrical section in this manual for more information.

LX Lawn Tractor Service Manual

1-i

SAFETY INFORMATION

1

THIS PAGE INTENTIONALLY LEFT BLANK.

1-ii

LX Lawn Tractor Service Manual

SPECIFICATIONS

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 specified in the service manual.

These torque specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in the service manual. The following factors shall be considered when applying torque: cleanliness of the fastener, use of a thread sealant (Loctite), degree of lubrication on the fastener, presence of a prevailing torque feature, hardness of the surface underneath of 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 similar 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 engagement, etc.

The standard method of verifying torque shall be performed 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

2

 

Figure 1

 

Inch Series Bolts and Screws

 

 

 

(A) Grade 1

 

(C) Grade 8

(B) Grade 5

 

 

 

 

 

Figure 2

Metric Bolts and Screws

(A) Class 8.8

(B) Class 10.9

 

 

LX Lawn Tractor Service Manual

2-1

SPECIFICATIONS

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

 

 

 

Grade 1, 5, &

SAE Grade 1 Bolts, Screws,

SAE Grade 5 Bolts, Screws,

SAE Grade 8 Bolts, Screws,

 

 

Thread Size

8 with Thin

Studs, & Sems with Regular

Studs, & Sems with Regular

Studs, & Sems with Regular

 

 

Height Nuts

Height Nuts (SAE J995 Grade

Height Nuts (SAE J995 Grade

Height Nuts (SAE J995 Grade

 

 

 

 

 

 

 

 

2 or Stronger Nuts)

2 or Stronger Nuts)

 

2 or Stronger Nuts)

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

In-lb

In-lb

N-cm

In-lb

N-cm

In-lb

N-cm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

# 6 - 32 UNC

10

± 2

13

± 2

147

± 23

 

15

± 2

170

±

20

23

± 2

260

±

20

 

# 6 - 40 UNF

 

17

± 2

190

±

20

25

± 2

280

±

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

# 8 - 32 UNC

13

± 2

25

± 5

282

± 30

 

29

± 3

330

±

30

41

± 4

460

±

45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

# 8 - 36 UNF

 

31

± 3

350 ± 30

43

± 4

31 ± 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

# 10 - 24 UNC

18

± 2

30

± 5

339

± 56

 

42

± 4

475

± 45

60

± 6

674

± 70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#10 - 32 UNF

 

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

68

± 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

374

± 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 reduced 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 minimum proof load specified in SAE J429. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts.

2-2

LX Lawn Tractor Service Manual

SPECIFICATIONS

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

 

 

Class 8.8 Bolts, Screws, and Studs with

Class 10.9 Bolts, Screws, and Studs with

 

 

Thread Size

 

Regular Height Nuts

 

 

Regular Height Nuts (

 

 

 

 

 

(Class 8 or Strong Nuts)

 

Class 10 or Strong Nuts)

 

 

M5

X 0.8

57 ± 5 in-lb

640 ± 60 N-cm

78 ± 7 in-lb

885 ± 80 N-cm

 

 

2

 

 

 

 

 

 

 

M6

X 1.0

96 ± 9 in-lb

1018 ± 100 N-cm

133 ± 13 in-lb

1500 ± 150 N-cm

 

 

 

 

 

 

 

 

 

 

 

 

M8 X 1.25

19

± 2 ft-lb

26

±

3 N-m

27

± 2 ft-lb

36

± 3 N-m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M10 X 1.5

38

± 4 ft-lb

52

±

5 N-m

53

± 5 ft-lb

72

± 7 N-m

 

 

 

 

 

 

 

 

 

 

 

 

 

M12

X 1.75

66

± 7 ft-lb

90 ± 10 N-m

92

± 9 ft-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 reduced 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. Thin height nuts include jam nuts.

LX Lawn Tractor Service Manual

2-3

SPECIFICATIONS

Other Torque Specifications

SAE Grade 8 Steel Set Screws

 

 

 

Recommended Torque

2

 

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 ± 3 ft-lb

 

 

 

 

 

 

 

1/2 - 13 UNC

75 ± 15 ft-lb

50 ± 10 ft-lb

 

 

 

 

 

Wheel Bolts and Lug Nuts

Thread Size

Recommended Torque**

 

 

 

7/16 - 20 UNF

65 ± 10 ft-lb

88 ± 14 N-m

Grade 5

 

 

 

 

 

1/2 - 20 UNF

80 ± 10 ft-lb

108 ± 14 N-m

Grade 5

 

 

 

 

 

M12 X 1.25

80 ± 10 ft-lb

108 ± 14 N-m

Class 8.8

 

 

 

 

 

M12 X 1.5

80 ± 10 ft-lb

108 ± 14 N-m

Class 8.8

 

 

 

 

 

** For steel wheels

and non-lubricated

fasteners.

Thread Cutting Screws

(Zinc Plated Steel)

Type 1, Type 23, or Type F

Thread Size

Baseline Torque*

 

 

 

No. 6 - 32 UNC

20

± 5 in-lb

 

 

 

No. 8 - 32 UNC

30

± 5 in-lb

 

 

 

No.10 - 24 UNC

38

± 7 in-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

 

 

 

Conversion Factors

in-lb X 11.2985 - N-cm

ft-lb X 1.3558 = N-m

Thread Cutting Screws

(Zinc Plated Steel)

Thread

Threads per Inch

Baseline Torque*

 

 

Size

 

 

Type A

Type B

 

 

 

 

 

 

 

No. 6

18

20

20 ± 5 in-lb

 

 

 

 

No. 8

15

18

30 ± 5 in-lb

 

 

 

 

No. 10

12

16

38 ± 7 in-lb

 

 

 

 

No. 12

11

14

85 ± 15 in-lb

* Hole size, material strength, material thickness and finish must be considered when determining specific torque values. All torque values are based on nonlubricated fasteners.

N-cm X - 0.08851 = in-lb

N-cm X 0.73776 - ft-lb

2-4

LX Lawn Tractor Service Manual

Toro 13AL60RG044, 13AL60RG048, 13AL60RG544, 13AP60RP544, 13AP60RP744 Service Manual

SPECIFICATIONS

Equivalents and Conversions

2

LX Lawn Tractor Service Manual

2-5

SPECIFICATIONS

Product Specifications

 

 

Name

LX420

LX425

 

LX460

LX465

LX500

 

 

Engine

18 HP

20 HP

 

20 HP

20 HP

22 HP

 

 

 

Single Cylinder

Single Cylinder

 

Single Cylinder

Single Cylinder

Twin Cylinder

 

 

 

Kohler Courage

Kohler Courage

 

Kohler Courage

Kohler Courage

Kohler Courage

2

 

 

 

RPM Setting -

3450 + 75

3450 + 75

 

3450 + 75

3450 + 75

3300 + 75

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RPM Setting –

1700 + 150

1700 + 150

 

1700 + 150

1700 + 150

1750 + 150

 

 

Low

 

 

 

 

 

 

 

 

Construction

 

 

12 Gauge Steel Frame

 

 

 

 

 

 

 

 

 

 

Fuel Capacity

 

 

3.0 Gallon (11.4 Liters)

 

 

 

Wheel Base

46” (116.8cm)

46” (116.8cm)

 

46” (116.8cm)

46” (116.8cm)

46” (116.8cm)

 

 

Overall Length

68” (172.7cm)

68” (172.7cm)

 

68” (172.7cm)

68” (172.7cm)

68” (172.7cm)

 

 

Overall Width

42” (114.3cm)

42” (114.3cm)

 

48” (127.9cm)

49” (124.4cm)

54” (137.2cm)

 

 

Overall Height

43” (109.2cm)

43” (109.2cm)

 

43” (109.2cm)

43” (109.2cm)

43” (109.2cm)

 

 

Weight

498 lbs.

498 lbs.

 

501 lbs.

498 lbs.

525 lbs.

 

 

(approximate)

(225.9kg)

(225.9kg)

 

(227.25kg)

(225.9kg)

(238kg)

 

 

Traction System

CVT* Transaxle

CVT* Transaxle

 

CVT* Transaxle

Hydro-Gear

CVT* Transaxle

 

 

 

 

 

 

 

LT-0510

 

 

 

Ground Speed –

0 – 5.5 mph

0 – 5.5 mph

 

0 – 5.5 mph

0 – 6.4 mph

0 – 5.5 mph

 

 

Forward

 

 

 

 

 

 

 

 

Ground Speed –

0 – 2.3 mph

0 – 2.3 mph

 

0 – 2.3 mph

0 – 2.5 mph

0 – 2.3 mph

 

 

Reverse

 

 

 

 

 

 

 

 

Front Tires

 

 

 

15 x 6

 

 

 

 

Rear Tires

20 x 8

20 x 8

 

20 x 8

20 x 8

20 x 10

 

 

Tire Pressure

 

 

 

14psi / 10psi

 

 

 

 

(Front/Rear)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turning Radius

 

 

 

18” (46cm)

 

 

 

 

 

 

 

 

 

 

Electrical

 

Voltage: 12-volt Negative

 

 

 

System

 

Ground Battery: 190 CCA

 

 

 

 

 

Alternator: 15 Amp Regulated

 

 

 

 

 

 

 

Fuse: 20 Amp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42”, Two Blade,

42”, Two Blade,

 

46”, Three Blade,

46”, Three Blade,

50”, Three Blade,

 

 

Mower Deck

13 Gauge Steel

13 Gauge Steel

 

12 Gauge Steel

12 Gauge Steel

12 Gauge Steel

CVT = Constant Velocity Transaxle

2-6

LX Lawn Tractor Service Manual

CHASSIS

Front Pivot Axle Replacement

5.Unplug the headlights from the wire harness (Fig. 003).

Removal

1.

Disconnect the negative and then the positive

 

 

 

 

battery cable.

 

 

 

2.

Remove the mower deck: 42” deck on page 7-64;

 

 

 

 

46” deck on page 7-69; 50” deck on page 7-74.

 

 

 

3.

Remove the deck rod from the deck hanger bracket

 

 

 

 

(Fig. 001).

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig 003

PICT-7064

6. Remove the hood from the frame (Fig. 004).

Fig 001

PICT-7399a

4. Raise the hood (Fig. 002).

Fig 004

PICT-7066

Fig 002

PICT-7063

LX Lawn Tractor Service Manual

3-1

CHASSIS

7.Elevate and secure the front end of the machine so the front axle can be accessed.

8.Remove the hub caps from the two front tires (Fig. 005).

10. Remove the washer from the two axles (Fig. 007).

3

Fig 007

PICT-7402

Fig 005

PICT-7400

9.Remove and discard the cotter pins from the two axles (Fig. 006).

11.Remove the wheel and tire assembly from the two axle assemblies (Fig. 008).

Fig 008

PICT-7403

Fig 006

PICT-7401

3-2

LX Lawn Tractor Service Manual

CHASSIS

Note: There are inner and outer bushings included with the rim assembly. When the wheel is removed, the inner bushing may come off with the wheel or stay on the axle.

Bushing stays in rim of tire (Fig. 009):

Fig 009

PICT-7410a

Bushing stays on axle (Fig. 010):

12.Remove the bushing from each of the axle assemblies if it stayed in place at tire assembly removal (Fig. 011).

3

Fig 011

PICT-7415a

13.Remove the nut securing the ball joint to the axle assemblies (Fig. 012).

Fig 012

PICT-7421

Fig 010

PICT-7413

LX Lawn Tractor Service Manual

3-3

CHASSIS

14.Remove the ball joint from the axle assembly (Fig. 013).

16.Remove the push nut from the axle assembly (Fig. 015).

3

Fig 013

PICT-7423

Fig 015

PICT-7425

15. Remove the cap from the axle assembly (Fig. 014).

17.Remove the axle assembly from the front pivot axle (Fig. 016).

Fig 014

PICT-7424

Fig 016

PICT-7431a

18. Repeat steps 13-17 to remove the second axle.

3-4

LX Lawn Tractor Service Manual

CHASSIS

19.Cut the cable tie securing the wire harness to the right hand hood pivot bracket (Fig. 017).

21. Support the front pivot axle (Fig. 019).

3

Fig 019

PICT-7439a

Fig 017

PICT-7434

20.Cut the electrical tape securing the wire harness to the plastic harness guide (Fig. 018).

22.Remove the nuts from the 2 bolts securing the pivot axle and deck hanger bracket to the frame (Fig. 020).

Fig 018

PICT-7462a

Fig 020

PICT-7442

LX Lawn Tractor Service Manual

3-5

CHASSIS

23.Remove the 4 bolts (2 on the right, 2 on the left) securing the left and right pivot supports to the frame (Fig. 021).

25.Remove the second bolt and deck hanger plate from the pivot axle (Fig. 023).

3

Fig 023

PICT-7447

Fig 021

PICT-7436

24.Remove one of the bolts securing the deck hanger plate and pivot axle to the frame (Fig. 022).

26.Remove the muffler, heat shield and bracket assembly (Fig. 024).

Fig 024

PICT-7449

Fig 022

PICT-7444

3-6

LX Lawn Tractor Service Manual

CHASSIS

27. Remove the pivot bar bracket (Fig. 025).

Installation

1.Position the front pivot axle to the front of the frame (Fig. 027).

3

Fig 025

PICT-7450

28. Remove the front pivot axle (Fig. 026).

Fig 027

PICT-7451

2.Position the pivot bar bracket to the front pivot axle (Fig. 028).

Fig 026

PICT-7451

Fig 028

PICT-7450

LX Lawn Tractor Service Manual

3-7

CHASSIS

3.Position the muffler, heat shield and bracket assembly to the frame (Fig. 029).

4.Loosely install 4 bolts securing the left and right pivot supports to the frame (2 bolts on the left side bracket and 2 bolts on the right side bracket) (Fig. 031).

3

Fig 029

PICT-7449

Fig 031

PICT-7436

Note: The tailpipe needs to be aligned and inserted into the muffler upon assembly (Fig. 030).

5.Position the deck hanger plate to the pivot axle and install a shoulder bolt (Fig. 032).

Fig 030

PICT-7457

Fig 032

PICT-7447

3-8

LX Lawn Tractor Service Manual

CHASSIS

6.Align the second hole in the deck hanger bracket with the pivot axle and install a second shoulder bolt (Fig. 033).

8.Tighten the 4 bolts securing the left and right pivot supports to the frame (2 bolts on the left side bracket and 2 bolts on the right side bracket) (Fig. 035).

3

Fig 033

PICT-7444

Fig 035

PICT-7436

7.Loosely install a nut onto the 2 shoulder bolts securing the pivot axle and deck hanger bracket to the frame (Fig. 034).

9.Torque the 2 nuts installed on the shoulder bolts securing the pivot axle and deck hanger bracket to the frame to 30 + 3 ft-lbs. (40.67 + 4.06 Nm) (Fig. 036).

Fig 034

PICT-7442

Fig 036

PICT-7460

LX Lawn Tractor Service Manual

3-9

CHASSIS

10.Apply electrical tape to secure the wire harness to the plastic harness guide (Fig. 037).

Note: The following steps, 12 thru 21, should be done on both the right and left sides of the axle.

12.Insert the axle assembly into the pivot axle (Fig. 039).

3

Fig 037

PICT-7464

11.Secure the wire harness to the right hand hood pivot bracket with a cable tie (Fig. 038).

Fig 039

PICT-7468a

13.Position the ball joint into the axle assembly (Fig. 040).

Fig 038

PICT-7466

Fig 040

PICT-7469a

3-10

LX Lawn Tractor Service Manual

CHASSIS

14.Install a nut onto the ball joint and torque to 12.5 to 29 ft-lbs. (16.94 to 39.54 Nm) (Fig. 041).

16. Apply grease to the axle assembly (Fig. 043).

3

Fig 043

PICT-7472

Fig 041

PICT-7470a

15.Install a cap/push nut onto the axle assembly (Fig. 042).

17.Slide the wheel and tire assembly onto the axle assembly (Fig. 044).

Note: The wheel bearing is installed in the rim.

Fig 042

PICT-7471

Fig 044

PICT-7473

LX Lawn Tractor Service Manual

3-11

CHASSIS

18. Install a washer onto the axle assembly (Fig. 045).

20. Apply grease to the wheel bearing (Fig. 047).

3

Fig 045 PICT-7474a Fig 047 PICT-7477a

19. Install a cotter pin into the axle assembly (Fig. 046). 21. Install the hub cap (Fig. 048).

Fig 046

PICT-7475a

Fig 048

PICT-7478

3-12

LX Lawn Tractor Service Manual

CHASSIS

22.

Lower the machine.

25. Lower the hood (Fig. 051).

23.

Position the hood on the chassis (Fig. 049).

 

 

3

Fig 051

PICT-7063

Fig 049

PICT-7066

26. Install the deck rod into the deck hanger bracket (Fig. 052).

24. Plug the headlights into the wire harness (Fig. 050).

Fig 052

PICT-7399a

Fig 050

PICT-7064

27. Install the mower deck: 42” deck on page 7-67; 46” deck on page 7-72; 50” deck on page 7-76.

28. Connect the positive and then the negative battery cable.

29. Check the toe-in measurement and adjust as needed. Refer to “Front Wheel Toe-In Measurement” on page 3-85.

LX Lawn Tractor Service Manual

3-13

CHASSIS

Axle Assembly Replacement

4.Remove the washer from the axle assembly (Fig. 055).

Removal

1.Raise the front of the machine.

2.Remove the hub cap (Fig. 053).

3

Fig 053

PICT-7067

3.Remove the cotter pin from the axle assembly (Fig. 054).

Fig 055

PICT-7070

5.Remove the wheel and tire assembly from the axle assembly (Fig. 056).

Fig 056

PICT-7072

Fig 054

PICT-7069

3-14

LX Lawn Tractor Service Manual

CHASSIS

Note: There are inner and outer bushings included with the rim assembly. When the wheel is removed, the inner bushing may come off with the wheel or stay on the axle assembly.

Bushing stays in rim of tire (Fig. 057):

Fig 057

PICT-7410a

Bushing stays on axle assembly (Fig. 058):

6.Remove the bushing from each of the axle assemblies if it stayed in place at tire assembly removal (Fig. 059).

3

Fig 059

PICT-7415a

7.Remove the nut securing the ball joint to the axle assembly (Fig. 060).

Fig 060

PICT-7077a

Fig 058

PICT-7413

LX Lawn Tractor Service Manual

3-15

CHASSIS

8.Remove the ball joint from the axle assembly (Fig. 061).

10.Remove the push nut from the axle assembly (Fig. 063).

3

Fig 061

PICT-7078

Fig 063

PICT-7425

9. Remove the cap from the axle assembly (Fig. 062).

11.Remove the axle assembly from the axle pivot (Fig. 064).

Fig 062

PICT-7424

Fig 064

PICT-7087

3-16

LX Lawn Tractor Service Manual

Loading...
+ 206 hidden pages