Toro LX Lawn Tractor Bedienungsanleitung

LX Lawn

Tractor

Service Manual

Consumer Products

iLX Lawn Tractor Service Manual

TABLE OF CONTENTS

1-1

2-1

2-2

2-3

2-4

2-5

2-6

3-1

3-7

3-14

3-17

3-19

3-20

3-21

3-24

3-27

3-28

3-29

3-30

3-31

3-32

3-33

3-39

3-45

3-53

3-62

3-64

3-67

3-69

3-71

3-74

3-77

3-79

SAFETY INFORMATION

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

Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SPECIFICATIONS

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

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

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

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

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

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

CHASSIS

Front Pivot Axle Replacement

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

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

Axle Assembly Replacement

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

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

Steering Wheel Replacement

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

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

Steering Shaft Replacement

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

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

Electric PTO Clutch Replacement

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

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

Fuel Tank Replacement

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

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

Hood Replacement

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

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

Fender Replacement

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

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

Tower Replacement

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

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

Lower Transmission Drive Belt Replacement - Gear Drive Models

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

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

Upper Transmission Drive Belt Replacement - Gear Drive Models

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

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

Transmission Drive Belt (Hydro) Replacement

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

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

Variable Speed Pulley Replacement

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

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

ii LX Lawn Tractor Service Manual

TABLE OF CONTENTS

3-81

3-82

3-83

3-84

3-85

3-86

3-87

3-91

3-93

3-96

4-1

4-7

5-1

5-4

5-9

5-11

5-14

6-1

6-7

7-1

7-3

7-6

7-8

7-11

7-13

7-14

7-16

7-19

7-20

7-21

7-23

CHASSIS cont.

Variable Speed Pulley Service

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

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

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

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

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

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

Front Wheel Toe-inAdjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Brake Adjustment - Hydrostatic Models . . . . . . . . . . . . . . . . . . . . . . . . . . .

Throttle/Choke Cable Replacement

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

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

ENGINE

Engine Replacement

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

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

GEAR DRIVE SYSTEM

CVT Transmission Replacement

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

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

Brake Puck Replacement

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

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

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

HYDROSTATIC DRIVE SYSTEM

Hydro Transmission Replacement

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

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

MOWER DECK

42” Mower Deck - Brake Idler Assembly Replacement

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

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

42” Mower Deck - Idler Assembly Replacement

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

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

42” Mower Belt Replacement

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

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

46” Mower Deck - RH Idler Bracket Assembly

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

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

46” Mower Deck - Brake Assembly

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

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

46” Mower Deck - LH Idler Assembly

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

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

iiiLX Lawn Tractor Service Manual

TABLE OF CONTENTS

7-25

7-26

7-27

7-30

7-34

7-35

7-36

7-38

7-39

7-41

7-43

7-45

7-47

7-51

7-56

7-60

7-64

7-67

7-69

7-72

7-74

7-76

8-1

MOWER DECK cont.

46” Mower Deck - Lower Idler Bracket

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

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

46” Mower Deck - Lower Mower Deck Belt Replacement

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

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

46” Mower Deck - Upper Mower Deck Belt Replacement

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

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

50” Mower Deck - Belt Replacement

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

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

50” Mower Deck - Idler Replacement

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

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

42” Mower Deck - Spindle Replacement

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

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

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

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

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

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

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

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

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

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

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

50” Mower Deck Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL

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

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TABLE OF CONTENTS

THIS PAGE INTENTIONALLY LEFT BLANK.

1-iLX Lawn Tractor Service Manual

SAFETY INFORMATION

General Information

This symbol means WARNING or

PERSONAL SAFETY INSTRUCTION

- read the instruction because it has to

do with your safety. Failure to comply

with the instruction may result in

personal injury or even death.

This manual is intended as a service and repair

manual only. The safety instructions provided herein

are for troubleshooting, service, and repair of the

LX Series Riding Lawn Tractor.

The riding mower and attachment operator's manual

contain safety information and operating tips for safe

operating practices. Operator's manuals are available

through your Toro parts source or:

The Toro Company

Publications Department

8111 Lyndale Avenue South

Bloomington, MN 55420

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.

1-ii LX Lawn Tractor Service Manual

THIS PAGE INTENTIONALLY LEFT BLANK.

SAFETY INFORMATION

SPECIFICATIONS

2-1LX Lawn Tractor Service Manual

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

Figure 1

Figure 2

Inch Series Bolts and Screws

(A) Grade 1

(B) Grade 5

Metric Bolts and Screws

(A) Class 8.8 (B) Class 10.9

SPECIFICATIONS

2-2 LX Lawn Tractor Service Manual

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

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.

Thread Size

Grade 1, 5, &

8 with Thin

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

2 or Stronger Nuts)

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

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