Troy-Bilt Horse Tiller Technical Manual - Page 22

PTO

HORSE

MODEL

TECHNICAL

MANUAL

Page

5.6

4/90

SECTION

5:

PTO

Power

Unit

Transmission

5.

Insert

a

1/4

-inch

punch

through

the

right

side

of

the

hous-

ing

and

use

a

hammer

to

drive

the

stem

pinion

shaft

(5)

and

the

key

(6)

to

the

left

and

out.

Avoid

dam-

aging

the

bearing

(7)

in

the

right

side

of

the

housing.

The

bearing

(7)

and

washer

(8)

in

the

left

side

of

the

housing

will

be

attached

to

the

pinion

shaft.

See

Figure

5-5.

Note:

Be

careful

not

to

damage

the

shaft

or

the

inside

of

the

housing.

As

you

drive

the

stem

pinion

shaft

out,

try

to

catch

the

washer

(8)

and

shim

(4A)

in

the

right

side

of

the

housing

on

the

end

of

the

punch.

If

the

washer

and

shim

fall

into

the

housing,

be

sure

to

remove

them

so

they

will

not

damage

the

transmission.

With

the

stem

pinion

shaft

removed,

the

pinion

gear

cluster

(9-12)

can

be

removed

from

the

housing.

6.

Remove

the

bearing

(7)

from

the

right

side

of

the

housing.

If

the

bearing

does

not

come

out

easily,

use

a

large

punch

to

gently

knock

it

out.

Note:

Be

careful

to

not

damage

the

inside

of

the

housing.

3

2

6

5

(05

1

t

9

3

12

4

8

4

16

4:3

2

C

7.

The

following

parts

should

not

be

disassembled

unless

inspection

shows

them

to

be

worn

or

damaged.

8.

Use

an

arbor

press

to

remove

the

bearing

(7)

and

washer

(8)

from

the

stem

pinion

(5).

See

Figure

5-5.

9.

Use

a

snap

ring

pliers

to

remove

the

(external)

snap

ring

(9)

that

retains

the

fast

speed

pinion

gear

(11)

to

the

bronze

worm

gear

(10).

10.

Place

the

worm

gear

(10)

on

an

open

vise

so

that

the

fast

speed

gear

(11)

is

hanging

down

between

the

vise

jaws.

Then

use

a

1

-inch

diameter

bar

to

tap

the

fast

speed

gear

down

and

off

the

worm

gear.

Check

to

make

sure

the

key

(12)

also

came

off

with

the

fast

speed

gear.

Note:

Be

careful

to

not

damage

the

inside

bore

of

the

fast

speed

gear.

Inspection

These

instructions

describe

how

to

inspect

vital

parts

on

the

pinion

shaft

assembly.

In

addition

to

inspecting

the

parts

you

have

removed,

you

should

also

inspect

any

replacement

parts

you

will

use.

8

1

Figure

5-4:

Pinion

Shaft

Assembly.

Figure

5-5:

Stem

Pinion

Assembly.

Troy-Bilt Horse Tiller Technical Manual - Page 22

Inspection

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