Toro 72042, 72043, 72045, 72046, 72047 Service Manual

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260 Series Tractor

Service

Manual

ABOUT THIS MANUAL

This service manual was written expressly for Toro service technicians. The Toro Company has made every effort to make the information in this manual complete and correct.

Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of Contents lists the systems and the related topics covered in this manual.

For additional information on the electrical system, please refer to the Toro Electrical Demystification Guide (492-4404). For service information on drive systems, please refer to the appropriate service manual: Tuff Torq (492-0699), Hydro-Gear (492-0682), Peerless (contact Tecumseh Products). For information specific to the engines used on this unit, refer to the appropriate engine manufacturer’s service and repair instructions.

Tractor model years 1994 - 2002 are covered in this manual. The manual may also be specified for use on later model products.

The hydrostatic transaxle is a sophisticated piece of machinery. Maintain strict cleanliness control during all stages of service and repair. Cover or cap all hose ends and fittings whenever they are exposed. Even a small amount of dirt or other contamination can severely damage the system.

We are hopeful that you will find this manual a valuable addition to your service shop. If you have questions or comments regarding this manual, please contact us at the following address:

The Toro Company

Consumer Service Department

8111 Lyndale Avenue South

Bloomington, MN 55420-1196

The Toro Company reserves the right to change product specifications or this manual without notice.

Copyright© All Rights Reserved

©2002 The Toro Company

TABLE OF CONTENTS

SPECIFICATIONS

 

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 1

Tecumseh Peerless Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 2

Identification: Tecumseh Peerless Model 820-024 . . . . . . . . . . . . . . . . . . . . . .

.1 - 2

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 2

Hydrostatic Transaxles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 3

Identification: Tuff Torq Model K61A Transaxle . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 3

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 3

Identification: Hydro-Gear Model 322-3000 & 330-3000 Transaxle . . . . . . . . .

.1 - 4

General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 4

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

.1 - 5

Fastener Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 5

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

.1 - 6

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

.1 - 7

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

.1 - 8

SAE Grade 8 Steel Set Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 8

Thread Cutting Screws (Zinc Plated Steel) . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 8

Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 8

Wheel Bolts and Lug Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 8

Thread Cutting Screws (Zinc Plated Steel) . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.1 - 8

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

.1 - 9

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

.1 - 9

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

1 - 10

CHASSIS

 

Model and Serial Number Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 1

Greasing and Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 1

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

.2 - 2

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

.2 - 3

Front Wheel and Spindle Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 3

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

.2 - 3

Front Axle Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 4

Steering Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 6

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 6

Steering Backlash Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 6

Steering Gear Shaft Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.2 - 7

Steering Gear Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 10

Sector Gear Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 11

Sector Gear Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 12

Tilt Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 12

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 12

Tilt Steering Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 13

Tilt Steering Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 14

Steering Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 15

Hood Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 16

Seat and Fender Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 - 16

260 Series Tractor Service Manual

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TABLE OF CONTENTS

Gas Tank Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 17 Lift Lever Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 18 Dial-A-Height Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 19 Lift Arm Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 20 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21

Lift Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Side to Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Power Lifts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Electrohydraulic Lift (2000 and Prior Models) . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Electric Lift (2001 and Later Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 21

TUFF TORQ TRANSAXLE

 

Tuff Torq Hydrostatic Transaxle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 3 - 1

Internal Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 1

Fluid Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 1

Transaxle Removal – Tuff Torq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 1

Installation - Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 4

Belt Replacement – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 6

Belt Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 10

Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 13

Troubleshooting – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 14

Purging Procedures – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 15

Brake – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 15

Checking the Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 15

Adjusting the Brake – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 15

Foot Control Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 16

Neutral Adjustment – Tuff Torq Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 - 17

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TABLE OF CONTENTS

HYDRO-GEAR TRANSAXLE

 

Hydro-Gear Hydrostatic Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 1

Internal Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 1

Fluid Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 1

Transaxle Removal - Hydro-Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 1

Installation - Hydro-gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 4

Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 7

Purging Procedures – Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 8

Brake – Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 9

Checking the Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 9

Brake Adjustment – Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.4 - 9

Foot Control Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 - 10

Troubleshooting Chart for the Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . .

4 - 11

Belt Replacement – Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 - 11

Belt Routing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 - 15

Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 - 16

Neutral Adjustment – Hydro-Gear Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 - 17

GEAR DRIVE

Transaxle Removal – Gear Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1 Installation – Gear Drive Transaxle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 5 Internal Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 5 Symptom: Unit Jumps Out Of Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 6 Symptom: Unit Can Not Be Shifted (or Difficult to Shift) . . . . . . . . . . . . . . . . . . . . .5 - 6 Symptom: Unit Does Not Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 6 Belt Replacement – Gear Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 7

Belt Routing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 9 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 12 Proper Shifting Procedures - Gear Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 13 Shift Linkage Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 13 Shift Detent Tension Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14

Checking the Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14 Adjusting the Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 15

260 Series Tractor Service Manual

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TABLE OF CONTENTS

ELECTRICAL SYSTEMS

Gear Drive Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Hydrostatic Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2 Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3 How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3 Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5 Low Voltage Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Electric (PTO) Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Coil Resistance Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6 Measuring Clutch Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7 Setting the Air Gap on 1999 and Prior Model 260 Series Tractors . . . . . . . . . . . 6 - 8 Clutch Burnishing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 PTO Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8 Microswitches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 9 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 9 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 9 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 10 Neutral Switch - Plunger Type (Used on 2000 and Later Hydrostatic Models) . . . 6 - 11 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 11 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 11 How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 11 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 12

vi

260 Series Tractor Service Manual

TABLE OF CONTENTS

Brake Switch (Used on 2000 and Later Hydrostatic Models) . . . . . . . . . . . . . . . . .6 - 12 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 12 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 12 How it Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 12 Brake Switch Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 13 Seat Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 13 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 13 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 13 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 14 Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 13 KeyChoice™ Reverse Operating System – Used on 1999 and Later Tractors. . . .6 - 14 Testing the Key Choice™ Reverse Operating System - Unactivated . . . . . . . .6 - 14 Testing the KeyChoice™ Operating System - Activated . . . . . . . . . . . . . . . . . .6 - 14 KeyChoice™ Reverse Operating System Switch . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Reverse Switch (Hydrostatic Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 16 Reverse Switch (Gear Drive Tractors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 KeyChoice™ Reverse Operating System Module. . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 17 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 18 How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 18 Testing - No Power to Circuit (With Module Out of Circuit) . . . . . . . . . . . . . . . . .6 - 19 Testing - Powered Circuit (With Module Out of Circuit). . . . . . . . . . . . . . . . . . . .6 - 19

260 Series Tractor Service Manual

vii

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viii

260 Series Tractor Service Manual

 

 

 

 

SPECIFICATIONS

 

General Specifications

 

 

Item

 

Specification

 

 

 

 

 

 

 

 

 

 

 

 

Engines

All tractors since 1994 were manufactured with Kohler engines ranging from 14

 

 

to 20 Horsepower. For more information on servicing the engines, please

 

 

contact the Kohler Company.

 

 

 

 

 

 

 

 

Domestic Units

High RPM Setting (no load) 3250 +/- 100 RPM

 

 

 

 

 

 

 

 

International Models

High RPM Setting (no load) 2700 +/- 100 RPM

 

 

 

 

 

 

 

 

Fuel Capacity

3.9 Gallons (14.7 liter)

 

 

 

 

 

 

 

 

Wheel Base

49.5” (125.7cm)

 

 

 

 

 

 

 

 

Length

69.0” (175.2cm)

 

 

 

 

 

 

 

 

Width

35.5” (90.1cm) without the mower

 

 

 

 

 

 

 

 

Steering

Sector and Pinion

 

 

 

 

 

 

 

 

Turning Radius

16 in. (40.6cm)

 

 

 

 

 

 

 

 

Electrical System

15 amp regulated DC alternator

 

 

 

 

 

 

 

 

Weight (Net Weight)

 

 

 

 

 

Model

 

Weight

 

 

 

 

 

 

 

 

 

 

 

 

 

264-6 / 265-6

 

521 lbs.

 

(236.3kg)

 

 

 

 

 

 

 

264-H / 265-H (Tuff Torq)

 

510 lbs.

 

(231.3kg)

 

 

 

 

 

 

 

267-H / 268-H (Tuff Torq)

 

540 lbs.

 

(244.9kg)

 

 

 

 

 

 

 

269-H / 270-H (Tuff Torq)

 

560 lbs.

 

(254.0kg)

 

 

 

 

 

 

 

265-H/266-H (Hydro-Gear)

 

530 lbs.

 

(240.4kg)

 

 

 

 

 

 

 

268-H (Hydro-Gear)

 

560 lbs.

 

(254.0kg)

 

 

 

 

 

 

 

270-H (Hydro-Gear)

 

580 lbs.

 

(263.0kg)

 

 

 

 

 

 

 

260 Series Tractor Service Manual

1 - 1

SPECIFICATIONS

Tecumseh Peerless Transaxle

Identification:

Tecumseh Peerless Model 820-024

MVC-254X

General Specifications

Lubrication

Bentonite grease (available through Tecumseh)

Ground Speed

1st Gear

.7 MPH (1.1km/h)

 

2nd Gear

1.4 MPH (2.2km/h)

 

3rd Gear

2.2 MPH (3.5km/h)

 

4th Gear

3.3 MPH (5.3km/h)

 

5th Gear

4.2 MPH (6.7km/h)

 

6th Gear

5.3 MPH (8.5km/h)

 

Reverse

2.4 MPH (3.8km/h)

1 - 2

260 Series Tractor Service Manual

SPECIFICATIONS

Hydrostatic Transaxles

Identification:

Tuff Torq Model K61A Transaxle

MVC-080X

General Specifications

Used

1994 – 1999

 

Lubrication

SAE 10W-30 API Service Classification SH or higher. Alternate oil: A

 

synthetic oil (5w50 or similar viscosity range) may be used in place of SAE 10w30. This will

 

permit an increase in the maximum operating temperature of approximately 18°F (10°C).

Oil Capacity

3.5 qt. (3.3 liter)

 

Oil Level

Check when transaxle is cold. Oil should be checked at the reservoir cup, located under the

 

front hood, on the panel support; oil level should be at the cold mark.

Fluid Change

The transaxle is factory filled and does not require regular oil changes.

Ground Speed

Forward

0-5.2 MPH (0-8.3km/h)

 

Reverse

0-2.3 MPH (0-3.7km/h)

260 Series Tractor Service Manual

1 - 3

SPECIFICATIONS

Hydrostatic Transaxles

Identification:

Hydro-Gear Model 322-3000 & 330-3000 Transaxle

MVC-082X

General Specifications

Used

2000 to 2002

Lubrication

SAE 20W-50 API Classification SH/CD

Oil Capacity

3.8 qt. (3.6liters)

Oil Level

The transaxle is a sealed system and does not require periodic checking. If the oil needs to be

 

checked, IT CAN ONLY BE CHECKED COLD. There is a plug located on the right rear side

 

of the transaxle. Using a ¼ inch Allen wrench, slowly remove the plug. Oil level should be to

 

the bottom of the port.

 

 

F9260-09

General Specifications

Ground Speed

Forward

0

– 6.3 MPH (10.1km/h)

 

Reverse

0

– 2.3 MPH (3.7km/h)

1 - 4

260 Series Tractor Service Manual

SPECIFICATIONS

Torque Specifications

Fastener Identification

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.

 

 

 

 

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

 

 

260 Series Tractor Service Manual

1 - 5

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

Height Nuts (SAE J995

Height Nuts (SAE J995

 

 

 

 

Grade 2 or Stronger Nuts)

Grade 2 or Stronger Nuts)

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

1 - 6

260 Series 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

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.

260 Series Tractor Service Manual

1 - 7

SPECIFICATIONS

Other Torque Specifications

SAE Grade 8 Steel Set Screws

Thread Size

Recommended Torque

 

 

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

1 - 8

260 Series Tractor Service Manual

SPECIFICATIONS

Equivalents and Conversions

Decimal and Millimeter Equivalents

Fractions

Decimals

mm

Fractions

 

Decimals

mm

 

 

 

 

 

 

 

1/64

0.015625

0.397

 

33/64

0.515625

13.097

1/32

0.03125

0.794

16/32

 

0.53125

13.484

 

 

 

 

 

 

 

3/64

0.046875

1.191

 

35/64

0.546875

13.891

 

 

 

 

 

 

 

1/16

0.0625

1.588

9/16

 

0.5625

14.288

 

 

 

 

 

 

 

5/64

0.078125

1.984

 

37/64

0.578125

14.684

 

 

 

 

 

 

 

3/32

0.9375

2.381

19/32

 

0.59375

15.081

 

 

 

 

 

 

 

1/8

0.1250

3.175

5/8

 

0.6250

15.875

 

 

 

 

 

 

 

9/64

0.140625

3.572

 

41/64

0.640625

16.272

 

 

 

 

 

 

 

5/32

0.15625

3.969

21/32

 

0.65625

16.669

 

 

 

 

 

 

 

11/64

0.171875

4.366

 

43/64

0.671875

17.066

 

 

 

 

 

 

 

3/16

0.1875

4.762

11/16

 

0.6875

17.462

 

 

 

 

 

 

 

13/64

0.203125

5.159

 

45/64

0.703125

17.859

 

 

 

 

 

 

 

7/32

0.21875

5.556

23/32

 

0.71875

18.256

 

 

 

 

 

 

 

15/64

0.234375

5.953

 

47/64

0.734375

18.653

 

 

 

 

 

 

 

1/4

0.2500

6.350

3/4

 

0.7500

19.050

 

 

 

 

 

 

 

17/64

0.265625

6.747

 

49/64

0.765625

19.447

 

 

 

 

 

 

 

9/32

0.28125

7.144

25/32

 

0.78125

19.844

 

 

 

 

 

 

 

19/64

0.296875

7.541

 

51/64

0.796875

20.241

 

 

 

 

 

 

 

5/16

0.3125

7.541

13/16

 

0.8125

20.638

 

 

 

 

 

 

 

21/64

0.328125

8.334

 

53/64

0.828125

21.034

 

 

 

 

 

 

 

11/32

0.34375

8.731

27/32

 

0.84375

21.431

 

 

 

 

 

 

 

23/64

0.359375

9.128

 

55/64

0.859375

21.828

 

 

 

 

 

 

 

3/8

0.3750

9.525

7/8

 

0.8750

22.225

 

 

 

 

 

 

 

25/64

0.390625

9.922

 

57/64

0.890625

22.622

 

 

 

 

 

 

 

13/32

0.40625

10.319

29/32

 

0.90625

23.019

 

 

 

 

 

 

 

27/64

0.421875

10.716

 

59/64

0.921875

23.416

 

 

 

 

 

 

 

7/16

0.4375

11.112

15/16

 

0.9375

23.812

 

 

 

 

 

 

 

29/64

0.453125

11.509

 

61/64

0.953125

24.209

 

 

 

 

 

 

 

15/32

0.46875

11.906

31/32

 

0.96875

24.606

 

 

 

 

 

 

 

31/64

0.484375

12.303

 

63/64

0.984375

25.003

 

 

 

 

 

 

 

1/2

0.5000

12.700

1

 

1.000

25.400

 

 

 

 

 

 

 

1 mm =

0.03937 in.

 

 

0.001 in. =

0.0254 mm

 

 

 

 

 

 

 

 

260 Series Tractor Service Manual

1 - 9

SPECIFICATIONS

U.S. to Metric Conversions

 

To Convert

Into

 

Multiply By

 

 

 

 

 

 

Miles

Kilometers

 

1.609

 

Yards

Meters

 

0.9144

Linear

Feet

Meters

 

0.3048

Feet

Centimeters

 

30.48

Measurement

 

Inches

Meters

 

0.0254

 

 

 

Inches

Centimeters

 

2.54

 

Inches

Millimeters

 

25.4

 

 

 

 

 

 

Square Miles

Square Kilometers

 

2.59

Area

Square Feet

Square Meters

 

0.0929

Square Inches

Square Centimeters

 

6.452

 

 

 

Acre

Hectare

 

0.4047

 

 

 

 

 

Volume

Cubic Yards

Cubic Meters

 

0.7646

Cubic Feet

Cubic Meters

 

0.02832

 

Cubic Inches

Cubic Centimeters

 

16.39

 

 

 

 

 

Weight

Tons (Short)

Metric Tons

 

0.9078

Pounds

Kilograms

 

0.4536

 

Ounces (Abdp.)

Grams

 

28.3495

 

 

 

 

 

Pressure

Pounds/Sq. In.

Kilopascal

 

6.895

 

 

 

 

 

Work

Foot-pounds

Newton-Meters

 

1.356

Foot-pounds

Kilogram-Meters

 

0.1383

 

Inch-pounds

Kilogram-Centimeters

 

1.152144

 

 

 

 

 

Liquid Volume

Quarts

Liters

 

0.9463

Gallons

Liters

 

3.785

 

 

 

 

 

 

 

Liquid Flos

Gallons/Minute

Liters/Minute

 

3.785

 

 

 

 

 

Temperature

Fahrenheit

Celsius

1.

Subtract 32°

 

 

2.

Multiply by 5/9

 

 

 

1 - 10

260 Series Tractor Service Manual

CHASSIS

Model and Serial Number Location

The model and serial number plate location is under the seat (Figure 3).

 

 

Figure 3

MVC-084X

3.One located on the front axle pivot area (1 total) (Figure 4).

 

 

Figure 4

MVC-085X

Hydrostatic model tractors have one grease fitting on the forward/reverse pedal (Figure 5).

Greasing and Lubrication

The machine should be greased every 50 hours or yearly, whichever occurs first. You should grease more frequently when operating conditions are extremely dusty or sandy.

Grease Type: General-purpose grease.

There are 5 grease fittings located in the front axle area:

1.

One located on the inside of each wheel hub (2

 

 

 

total).

 

 

 

 

 

 

2.

One located on each end of the front axle for the

Figure 5

MVC-088X

 

 

spindles (2 total).

260 Series Tractor Service Manual

2 - 1

CHASSIS

On the gear drive tractors, there is a grease fitting located on both the clutch and brake pedal (Figure 6).

 

 

 

 

 

 

Figure 6

 

MVC-089X

Front Wheel Toe-in

If there is uneven tire wear, lawn scuffing, or hard steering, toe-in may need to be adjusted. The front toe-in measurement should be 1/8” to ¼” (3 to 6mm). This should be checked every 100 hours or once a year, whichever occurs first.

MEASUREMENT:

1.Disengage the PTO, set the parking brake, and turn the ignition key to OFF to stop the engine. Remove the key.

2.Push the front of the tires out to remove normal looseness in the linkage (Figure 7).

 

 

Figure 7

MVC-091X

3.Measure the distance between both the front rims at spindle level, in front and rear of the wheels. You can also measure between the tread mold marks if the tires are new (Figure 8).

 

 

Figure 8

MVC-092X

4.The front measurement should be 1/8” to ¼” (3 to 6mm) less than the rear measurement (Figure 9). If needed, follow the adjustment procedure.

 

 

Figure 9

MVC-094X

2 - 2

260 Series Tractor Service Manual

CHASSIS

Front Wheel Toe-in Adjustment

1.Remove the tie rod from one steering arm.

2.Loosen the jam nut securing the ball joint to the steering rod. Rotate the ball joint one turn: clockwise to increase toe-in; counterclockwise to decrease toe-in (Figure 10).

IMPORTANT: If more than one turn is required to meet specifications, alternate between the right and left steering rods to maintain steering wheel alignment.

 

 

Figure 10

MVC-095X

3.Hold flats on the ball joint to align with the flats on the tie rod and tighten the jam nut (Figure 11).

4.Install the ball joint to the steering arm and check the toe-in as described in the measurement section (Figure 12).

 

 

Figure 12

MVC-099X

Front Wheel and Spindle Removal

and Installation

Removal

1.Disengage the PTO. Set the parking brake, and turn the ignition key to OFF to stop the engine. Remove the key.

2.Raise the front axle by putting a jack under the side you are removing the wheel or spindle from.

 

 

Figure 11

MVC-098X

260 Series Tractor Service Manual

2 - 3

CHASSIS

3.Remove the outer hub cap, cotter pin, washer, and hub cap washer. Slide the wheel and tire off the spindle (Figure 13).

5.The spindle can now be removed out the bottom of the front axle assembly (Figure 15).

 

 

Figure 13

MVC-100X

4.Remove the tie rod from the front spindle arm. With a drift punch and hammer, drive the roll pin out of the front spindle arm (Figure 14).

 

 

Figure 14

MVC-101X

 

 

Figure 15

MVC-102X

6.Installation – reverse the order of removal.

Front Axle Removal and Installation

1.Jack-up the front of the tractor. Put jack stands under the frame, just behind the front axle assembly (Figure 16).

 

 

Figure 16

MVC-103X

2 - 4

260 Series Tractor Service Manual

Toro 72042, 72043, 72045, 72046, 72047 Service Manual

CHASSIS

2.Remove right and left tie rods from the front spindle arms (Figure 17).

5.On the back side of the axle, remove the bolt on the axle pin (Figure 19).

 

 

 

 

 

Figure 17

MVC-105X

 

Figure 19

MVC-107X

3.On the front of the axle, in the center, remove the E-ring and washers (Figure 18).

6.Remove the axle pin; use a drift punch and hammer to tap the axle pin out; if needed (Figure 20).

 

 

Figure 18

MVC-106X

4.Remove the electric PTO clutch from the engine crankshaft.

 

 

Figure 20

MVC-108X

7.Installation – reverse the order of removal.

260 Series Tractor Service Manual

2 - 5

CHASSIS

Steering Gear

Description

The steering gear assembly is made up of a vertically mounted steering shaft and a horizontal sector gear. The sector gear is adjustable so that excessive backlash play in steering gears can be removed (Figure 21).

 

 

Figure 21

6-8

Steering Backlash Adjustment

Use the following procedure if there is excessive steering backlash.

1.Remove battery and battery tray from the tractor.

2.Position the steering wheel so the tie rods clear the front axle and remove them from the steering arms (Figure 22).

 

 

Figure 22

MVC-263X

3.Loosen the locking nut on the eccentric (Figure 23). Position the steering wheel spokes so they extend outward left to right.

 

 

Figure 23

MVC-110X

2 - 6

260 Series Tractor Service Manual

CHASSIS

4.Tighten the nut until the eccentric turns with a small amount of friction (Figure 21).

 

 

Figure 24

MVC-113X

5.Using a punch, turn the eccentric clockwise until zero clearance is obtained between the end of the steering shaft gear and the steering sector (Figure 24).

6.Tighten the nut to 25 – 35 ft lb (34 – 48 Nm). DO NOT OVERTIGHTEN.

7.Apply some multipurpose grease to the steering gear teeth.

8.Connect the tie rod ends to the steering arms.

9.Turn the wheels left and right. Recheck for zero clearance (Figure 25).

 

 

Figure 25

MVC-115X

10. Reinstall the battery tray and battery.

Steering Gear Shaft Disassembly

1.Disconnect the negative battery cable.

2.Remove the roll pin, steering wheel, spacer, and spring from the top of the steering shaft (Figure 26). (Note: Some units use a retaining nut and washer located under the center cover of the steering wheel).

 

 

Figure 26

6-9

3.Remove the rubber boot from the steering shaft and console (Figure 27).

 

 

Figure 27

6-10

260 Series Tractor Service Manual

2 - 7

CHASSIS

4.Rotate the steering shaft until the top bolt of the universal joint faces the rear of the tractor. Remove the bolt (Figure 28).

6.Disconnect the relays from the mounting bracket and remove the bracket from the tractor. Place the wiring harness and fuse block to the side of the console (Figure 30).

 

 

Figure 28

6-11

5.Pull the top shaft from the universal joint and remove it from the top of the tractor (Figure 29).

 

 

Figure 29

6-12

 

 

Figure 30

6-13

7.Rotate the steering gear shaft until the bottom bolt of the universal joint faces the front of the tractor. Remove the bolt (Figure 31).

 

 

Figure 31

6-14

2 - 8

260 Series Tractor Service Manual

CHASSIS

8.Tilt steering to the rear position and remove the universal joint from the steering shaft gear. Remove the universal joint from the top of the tractor (Figure 32).

10.Lift the steering shaft upwards, out of the lower bushing and through the opening in the mounting bracket. Tilt the shaft towards the front of the tractor and remove it (Figure 34).

 

 

 

 

 

Figure 32

6-15

 

Figure 34

6-17

9.Expand the snap ring found on the steering gear shaft and slide if halfway down the shaft. Loosen the setscrew on the locking collar of the steering gear shaft and move it until it meets the snap ring (Figure 33).

11.Remove the shims from the top of the lower bushing and set aside for installation process (Figure 35). Important: Check the bushing, shaft, and gears for wear and replace with new parts if necessary. Refer to “Steering Specifications” on page 2 - 15.

 

 

Figure 33

6-16

Figure 35

6-18

260 Series Tractor Service Manual

2 - 9

CHASSIS

Steering Gear Assembly

 

 

 

 

 

Figure 36

6-19

 

 

 

 

(1)

Shims

(4)

Snap Ring

(2)

Lower Bushing

(5)

Locking Collar

(3)

Steering Gear Shaft

(6)

Mid Bushing

1.Place two 0.05” (1.27mm) shims,1, between the top of the bushing, 2, and the steering gear shaft, 3.

Note: Lubricate the bushing with never seize lubricant during assembly.

2.Align the front wheels so that they face straight ahead.

3.Install snap ring, 4; locking collar, 5; and upper bushing, 6, onto the steering gear shaft.

4.Insert the steering gear shaft through the opening in the mounting bracket and onto the lower bushing.

Note: The shims must be in place.

5.Move the locking collar upward on the shaft until it touches the column support mid bushing. Tighten the collar set screw, then move the snap ring upward on the shaft until it meets the bottom of the locking collar (Figure 36).

6

 

3

3

 

4

 

 

1

5

 

 

 

 

 

2

 

 

 

Figure 37

6-22

 

 

 

 

 

(1)

Universal Joint

 

(4)

Roll Pin

(2)

Lower Steering Gear

(5)

Upper Steering

 

Shaft

 

 

Shaft

(3)

Retaining Bolts

 

(6)

Steering Bushing

6.Tilt steering to the rear position and place the universal joint,1, onto the top end of the lower steering gear shaft, 2. Install the retaining bolt, 3, of the universal joint through the joint and steering gear shaft.

7.Place upper steering shaft, 5, onto the upper end of the universal joint,1. Position the upper steering shaft so that the roll pin hole runs perpendicular (90°) to the tractor’s center line. Install the retaining bolt, 3, through the upper end of the universal joint and upper steering shaft.

Note: Ensure that electrical wiring can not come into contact with upper steering shaft of universal joint in any position.

2 - 10

260 Series Tractor Service Manual

CHASSIS

8.Install the rubber boot over the steering shaft and console (Figure 38).

 

 

Figure 38

6-23

9.Place the spring, spacer and steering wheel on the steering shaft and install the roll pin. (Note: Some steering wheels are secured with a retaining nut and washer located under the center cover of the steering wheel.) Install the relay bracket, fuse block, battery tray, and battery.

Important: Ensure that all hardware is securely fastened, that the steering wheel is centered when the wheels are straight ahead, and that the steering operates properly.

Note: Ensure that electrical wiring can not come into contact with upper steering shaft of universal joint in any position.

Sector Gear Disassembly

1.Remove the battery and plastic battery tray from the tractor. Disconnect both steering tie rods from the sector gear. Using the access hole in the mounting bracket, remove the locknut and carriage bolt holding the sector in place (Figure 39).

 

 

Figure 39

6-25

2.Remove the locking plate from the top of the sector gear (Figure 40).

 

 

Figure 40

6-26

3.Remove the cam bushing, 3, from the sector gear. Separate the sector gear, 2, from the mounting bracket (Figure 41).

Important: Inspect the sector gear teeth and cam bushing for wear and replace if necessary.

260 Series Tractor Service Manual

2 - 11

CHASSIS

Sector Gear Assembly

 

 

 

 

 

Figure 41

6-28

 

 

 

 

(1)

Washer Bearing

(4)

Locking Plate

(2)

Sector Gear

(5)

Carriage Bolt

(3)

Bushing

(6)

Locknut

 

 

 

 

1.Install the bearing washer, 1, on the mounting bracket (Figure 41).

2.Place the sector gear, 2, on top of the bearing washer with the teeth facing the rear of the tractor (Figure 41).

3.Center the steering shaft with the sector gear (Figure 42). Make sure the steering wheel is centered.

 

 

Figure 42

6-8

4.Insert the cam bushing, 3, into the bore of the sector gear (Figure 41).

5.Place the locking plate, 4, on the cam bushing (Figure 41).

6.From the bottom, insert the carriage bolt, 5, through the bearing washer, cam bushing, and the locking plate. Secure the bolt with the locknut, 6 (Figure 41).

7.Adjust the steering gear, refer to “Steering Backlash Adjustment” on page 2 - 6.

8.Fasten both steering arms onto the sector gear. Check wheel alignment and toe-in.

Tilt Steering

 

 

Figure 43

6-34

Description

The tilt steering assembly is made up of the following components (Figure 43):

1.Universal joint.

2.Steering column (bushing mounted).

3.Detent bracket (left side).

4.Support bracket (right side).

5.Spring-loaded control handle.

2 - 12

260 Series Tractor Service Manual

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