Toro 22010, 22020, 22035, 22035C, 22621 Service Manual

COMMERCIAL REAR WHEEL DRIVE REBUILD GUIDE

Table of Contents – Page 1 of 1

PREFACE

HOW TO USE THIS PUBLICATION

COMMERCIAL INPUT SHAFT 1983-1989

COMMERCIAL SHIFTER MECHANISM 1983-1985 SERVICE TIP: 1986-1989 SERVICE TIP:

COMMERCIAL INTERMEDIATE SHAFT 1983-1985 1986-1989

COMMERCIAL SUSPENSION SYSTEM MINOR REBUILD** 1983 SERVICE TIP: MAJOR REBUILD** 1983 SERVICE TIPS: MINOR REBUILD** 1984-1985 SERVICE TIPS: MAJOR REBUILD** 1984-1985 SERVICE TIPS: MINOR REBUILD** 1986 SERVICE TIP: MAJOR REBUILD** 1986 SERVICE TIPS: MINOR REBUILD** 1987 SERVICE TIP: MAJOR REBUILD** 1987 SERVICE TIP: MINOR REBUILD** 1988-1989 SERVICE TIP: MAJOR REBUILD** 1988-1989 SERVICE TIP:

PREFACE

The rear drive system on Toro Commercial Rear Drive Walk Power Mowers has been improved almost yearly since very durable, high quality mower, servicing can be difficult because of the many improvements and parts cross-references.

The purpose of this guide is to aid in servicing the rear drive system on 1983 through 1989 Toro Commercial Rear Drive Mowers. We’re hopeful that

1. Inform you of the most effective way to rebuild the Toro Commercial Rear Drive System.

2.

Reduce time spent paging from cross reference to cross reference

in the parts catalog.

3. Help reduce your parts stock by indicating obsolete parts.

This document supercedes Commercial Rotaries Service Bulletins 13 and 16 regarding rebuilding the rear drive system. However, use of the rebuild kits referenced in Service Bulletin number 17 is still highly recommended whenever output shaft replacement becomes necessary.

If

you have comments or questions regarding this guide, please

contact us at:

its

introduction in 1983. While the result is a

it

will:

feel

free to

The Toro Company

Consumer Service Department

81 11 Lyndale Avenue South

Minneapolis,

phone: 612-888-8801

MN,

USA 55420

Table

of

Contents

How

to Use

Input

Shifter Mechanism

Intermediate Shaft

Suspension System

This

Publication Page

Shaft

(1983-1989)

(1983-1985) (1986-1989)

Minor Rebuild(1983) Major Rebuild(1983)

Minor Rebuild(1984-1985) Major Rebuild(1984-1985)

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2

3

4

5

6

7

8 9

10

11

Minor

Rebuild(1986)

Major Rebuild(1986) Minor Rebuild (1987)

Major Rebuild(1987) Minor Rebuild(1988-1989)

Majaor Rebuild(1989-1989)

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12 13

14 15

16 17

1

...

....

...

....

.....

.

..........

........

...

How

to

Use

This

Publication

Major

Original

-

Rebuild**

1983

Rebuild With

Ref X Part

1

__

2 48-2170 End Cap. 3 48-2390 Spring Arm Assy 2' 4 25-7740 Knob 2

5

6

7 39-9650* Spring 2

__

~-

Number

48-2450' Output Bushing

__

36-4770* 39-9680*

-

Company's recommendation on

how

to

rebuild the system.

~-

Description

___

__

'

Washer 2 Key 2

Qty.

I

2

-

2

f

h

I

10

32121-98*( These numbers refer to

11 bottom of

11 39-9160

44-0600

12 13 48-2540

13a 47-7270 Needle Bearing 13b 47-2890 Bushing

13C 302-56 Grease Fitting

13d

-

47-7260

**

Major rebuild is one

parts

included

t

Not

illustrated.

1. Bracketed parts are interchangeable as a group only.

2. Interchangeable as an assembly only. information regarding parts installation and

3. Interchangeable as an assembly only. maintenance to insure maximum durability. Service

lips:

a.

Do

not flare end

b. When output shaft is removed, do not reuse spiral pin, P/N 32121-108. Install new pin,

c. Grease liberally after every every 25 hours of use

Pinion

]

Wheel Cover

3

Pivot Arm Assy Includes:

These

notes give important information

in

rc

regarding parts that have changed.

I

\

of

roll pin (32121 -98) when installing

13 39-9160*

12 74-1680 14 53-7940*

14a 52-2450 Ball Bearing 2 14b 47-2890 Bushing 2 14C 302-56 Grease Fitting 2

7

3'

heel Cover

]

pivot Arm Assy

Includes:

_-

~~___

---7--------~-~-

to

prevent damage to seal

to

increase service life.

9

of

bearing.

P/N

the

page.

Kt

--

3285-19.

2

I

J

1983-1989

Commercial

Input

Shaft

Original

12

4 36-4790 Thrust Washer

5

47-7270

6 48-2460 Input

Needle

Bearing

Shaft

2

6

1

2

1

Rebuild

With

Rebuild as original.

8 39-6660 Bevel Pinion

9 47-2910

10

47-7260

Thrust Washer

Seal

1 1 1

3