Troy-Bilt Horse Tiller Technical Manual - Page 15

SECTION

4:

Transmission

Removal

and

Installation

PTO

HORSE

MODEL

TECHNICAL

MANUAL

Page

4-3

4/90

Attaching

the

Transmissions

1.

Clean

the

surfaces

of

the

transmissions

where

they

join

together.

2.

Make

sure

the

dog

clutches

have

been

greased.

Fill

the

dog

clutch

cavity

on

the

PTO

power

unit

with

grease

up

to

where

the

rear

of

the

PTO

power

unit

widens

to

accept

the

tiller

attachment.

Then

grease

the

dog

clutch

on

the

tiller

attachment

so

that

the

dog

clutch

is

covered

with

grease.

3.

Align

the

locating

pin

on

the

PTO

Power

Unit

housing

with

the

locating

hole

on

the

tiller

attach-

ment

housing

and

join

the

PTO

power

unit

and

tiller

attachment.

If

necessary,

turn

the

pulley

on

the

front

of

the

PTO

power

unit

to

adjust

the

dog

clutch

until

it

fits

the

tiller

attachment

dog

clutch.

Note:

If

you

put

the

Tines/PTO

Clutch

in

neutral

you

will

not

have

to

line

up

the

dog

clutches.

4.

Swing

the

bolts

so

that

they

connect

to

the

tiller

attachment.

5.

Tighten

the

bolts.

Use

a

torque

wrench

and

tighten

the

bolts

to

70-80

ft/lbs.

Transmission

Installation

1.

Install

the

wheels.

2.

Install

the

shift

lever

bracket

(11)

with

the

left

-side

bolt

and

right

-side

bolt

(the

one

that

goes

in

horizontally).

Be

sure

that

the

Tines/PTO

Clutch

Lever

(13)

is

installed

through

the

slot

in

the

detent

plate

(15).

Make

sure

to

tighten

the

bolts

securely.

3.

Install

the

Wheel

Speed

Lever

connecting

rod

swivel

on

the

eccentric

lever

(10).

4.

Install

the

locknut

that

retains

the

swivel

to

the

lever.

Tighten

the

nut

securely

and

then

loosen

it

1/8

turn.

5.

Install

the

knob

(12)

on

the

Tines/PTO

Clutch

Lever

(13)

with

the

bolt

(9).

6.

Install

the

handlebar

mounting

base

and

the

attached

handlebars

to

the

transmission

housing

cover

with

the

long

bolt

(8)

or

T

-handle.

7.

Install

the

bolt,

bushing,

and

washer

(7)

that

holds

the

yoke

pivot

links

to

each

side

of

the

PTO

power

unit.

8.

Apply

a

liberal

coating

of

grease

to

the

engine

mounting

bars

(5).

9.

Position

the

engine

on

the

PTO

power

unit

and

support

the

engine

with

a

block.

10.

Install

one

of

the

engine

mounting

bars

halfway.

Use

a

rubber

hammer

to

tap

the

bar

down.

Take

care

to

not

damage

the

threads

in

the

top

of

the

bar.

11.

Back

off

the

jam

nut

and

install

the

locking

bolt

(6)

for

the

bar.

Turn

the

bolt

until

it

is

finger

tight

and

you

feel

it

strike

the

bar.

Then

maintain

very

light

pressure

on

the

bolt

with

a

wrench.

12.

Slowly

tap

the

engine

mount-

ing

bar

the

rest

of

the

way

in.

When

the

groove

in

the

bar

reaches

the

bolt,

the

pressure

on

the

bolt

will

be

relieved.

13.

Tighten

the

bolt

until

it

is

snug

and

then

back

off

1/4

turn.

Next,

hold

the

bolt

with

one

wrench

while

tightening

the

jam

nut

with

a

second

wrench.

14.

Repeat

the

previous

four

steps

for

the

other

engine

mount-

ing

bar.

15.

Install

the

bumper

on

the

tiller.

If

the

tiller

did

not

have

a

bumper,

install

the

red

plugs

in

the

top

of

the

engine

mounting

bars

to

protect

the

threads

in

the

bumper

mounting

holes.

16.

Set

the

yoke

in

the

necessary

15

position

and

install

the

bolt,

bush-

ings,

and

washers

(4)

that

hold

each

side

of

the

yoke

to

the

motor

mount.

If

necessary,

temporarily

detach

the

clutch

pawl

spring

before

attaching

the

yoke.

Be

sure

to

reattach

the

spring

after

the

yoke

is

installed.

17.

Attach

the

throttle

control

cable

(3)

to

the

handlebar.

Use

plastic

wire

ties

to

secure

the

cable

to

the

handlebar.

18.

On

tillers

so

equipped,

attach

the

Forward

Interlock

System

plug

connector

with

bracket

(2)

to

the

top

of

the

shift

lever

bracket and

install

the

forward

bolt

on

the

right

side

of

the

shift

lever

bracket.

19.

On

tillers

so

equipped,

con-

nect

the

Forward

Interlock

System

engine

wire

harness

assembly

to

the

handlebar

wire

harness

assembly

(1).

A

WARNING:

To

help

avoid

personal

in-

jury,

the

Forward

Interlock

Safety

System

should

be

tested

for

proper

function-

ing

every

time

the

tiller

or

PTO

Power

Unit

is

used.

After

completing

all

of

the

assembly

steps,

refer

to

"Test

Operation

of

Forward

Interlock

Safety

System"

the

PTO

Horse

Model

Owner/Operator

Manual.

20.

For

electric

start

tillers

only:

a.

Attach

the

battery

bracket

to

the

transmission

cover

and

attach

the

two

mounting

bolts

and

lock

washers

that

secure

the

legs

of

the

bracket.

b.

For

Briggs

&

Stratton

engines

only:

Connect

the

green

shutoff

wire

on

the

right

side

of

the

engine.

Troy-Bilt Horse Tiller Technical Manual - Page 15

HORSE, MODEL, TECHNICAL, MANUAL, Transmission, Installation

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