John Deere 55, 56 User Manual

SLIDE

CONSUMER PRODUCTS

TEXT

55-56

ST

r*

55

and

RIDING

56

MOWER

.

r^

INTRODUCTION:

New for 19

70 are

DEERE Riding

ers have

the high standard

feel that

We

valuable

a

been developed

addition

the 55

Mowers.

of

these two

JOHN DEERE

to our

sumer Products

The

55 is a

26-inch mower.

rider

with

electric

There are

horsepower

5

28-inch

a

start

option available.

many like

The 56

mower and

features as

distinguishing features

56 riders.

and

cover

occur

be so

both models.

in the

noted and

This service

Where

service

shown in

and 56

and

riding

tested

These

riders

line of

rider

is

6

a

between

text

differences

procedure,

this

JOHN

Mow-

to

quality.

will

make

Con-

with

a

horsepower

has an

the

as

55

well

will

it will

text.

RM GEN 1

SECTION

GENERAL

10

1

SPECIFICATIONS:

Wheel

Tread

Front 55 &

Rear 55

& 56

Tire Sizes

Front 55

56

Rear

Tire

Front

Rear 55

55 &

Inflation

55

56

& 56

56

22 in.

in.

22

10.50x3.50

Semi-pneumatic

-

11x4.00

4.00x4.80

5

-

8

Semi-pneumatic

lbs.

8

lbs.

12

-

1

:

DIMENSIONS:

Wheel

Over-all

Turns

Weight

Width

Height

Base

Length Height

Width

Outside

(including

of

Cut

of

PREDELIVERY

The

rider

out the

front wheels

55 &

55

56 55 &

55

56 55 56

&

56

mower)

55

56

Cut

55

&

56

mowers will

40

in.

56

55 56

54

36.5

37.5

34.5

36.5

30

250

260

26

28

1-3

in.

lbs. lbs.

in. in.

i

in.

in

in.

n .

.

*********************

RM

GEN

2

be

shipped with-

assembled.

SECTION

GENERAL

10

2

Assemble

by

placing

on

spindle

On

56

wheel

Grease the

the

wheel,

Riders,

hub.

wheel with

multi-purpose

Position

Remove spring

flat

sition

upright

hub

and

front

steering

washer

steering

on

steering

from

shaft.

front

as

install

grease.

over

washer

shown.

wheels

wheel

steering

wheel

Insert

shaft.

wheels

to

the

and

snap

plastic

SAE approved

cap

riders

ring

over

*********************

straight

or

handle

shaft.

shaft

or handle

forward.

bars

Place

and

bars

through

and

po-

RM

GEN

3

*********************

-2-

SECTION

10

GENERAL 3

LUBRICATION:

Check

cate

grease.

tion.

Check

lubrication

areas

(6)

Lubricate

the engine oil

oil will be at

AM 30730

Add

AM 30730

Use

AM

30 710

(SAE

and

shown

every 10

the top of

(SAE

30)

(SAE

30)

oil in

10)

if

with

necessary

SAE multi-purpose

hours

lubri-

of opera-

**************

level.

oil

When full,

the plug

necessary.

if

in Summer and

Winter.

hole.

RM GEN 4

GEN

RM

5

CUSTOMER

sure the

Be

manual and

DELIVERY:

customer

encourage

Explain mower

tures.

oil

tion.

ticles,

few hours

Remember:

their operator's

spend

operation

Advise

after

the first

This

which may

of

explaining

is most

will remove

operation.

Not all

*********************

has his

him to

operation

customer to

the

two

appear

customers

manuals.

mower

the

important.

operator's

read it.

safety fea-

and

change

abrasive

after

of opera-

the

hours

any

will read

The time you

service and

RM GEN 6

par-

first

.

ENGINE

SPECIFICATIONS:

Manufacturer

Mode

l

Cylinder

Bore

and

Stroke

Displacement

T

e

yP

Speeds

(fast)

(idle)

Horsepower

Valve Valve

Clearance

Compression

Cranlcase

Type

Capacity

of

Crankcase

Lubricant

Starter

4-cycle,

(intake)

(exhaust)

Release.

Single, C.I.

vertical

cold

Internal

55

Tecumseh

sleeve

2.63

x

2.25

12.176

cu.

crankshaft

1800-3600 1200-1700

HP@3600

5

0.010

mechanical type

1-1/2

U.S.

AM

30730

AM

30710 Winter

R

ope

pints

Summer

recoil

V

50

in

rpm rpm

rpm

in

4-cycle,

Internal

SECTION

20

ENGINE

Single, C.I.

2.63

x 2.50

13.53

vertical

crankshaft

1800-3600 1200-1700

6 HP

@

mechanical type

1-1/2

AM

U.S.

30730 30710

Rope

1

56

Tecumseh

V60

sleeve

cu.

3600

0.010

pints

Summer

Winter

recoil

in.

rpm rpm rpm

in.

We cannot over-stress

of

a

clean

lightly

pressed

type

to

air

filter

engine.

of service

tremely

Shown

from

$3.95)

is

Tecumseh

engine

The

serial

contains

serial

ber

which

serial

is

valuable

appear

dence

referring

air filter.

to

remove

air

or

clean

and

Replace

or

dirty.

a

vibrating

which

will

speed

number

several

number

immediately

on

the

to the

on

warranty

dirt.

a liquid

filter

result

filter

sooner

(part no.

enable

accurately.

plate

groups

of

the

serial

to

importance

the

Tap filter

Never

cleaner

as

these

in

every

if it

may damage

damage

100 hours

becomes

tachometer

670156, price

you to

********

for

the

of numbers.

engine is

follows

plate. This

factory

claims

engine

the

and should

and

correspon-

problems

use com-

of any

to the

ex-

available

set the

engine

The

the

num-

word

number

ENG

70

1

************

70 ENG 2

*****************

- 4-

****

SERVICE TOOLS:

70

ENG

SECTION 20

ENGINE 2

3

r-

r^

Shown

2-7

HP

to

left

1.

2.

3.

4,

5.

6.

Torque

lbs. in

in.

uniform

ket.

SM 2091,

Manual.

normal

service

the

are

Tecumseh

right:

Flywheel

engines.

Knock-off

(Tecumseh 670169)

Seat

Tool.

Sleeve

Driver

2 86 7

Tools.

2 86

28678)

Tools.

Oil Seal

(Tecumseh

Seal

(Tecumseh

Bearing

(Tecumseh

Oil

(Tecumseh 28676)

915A)

the

Puller.

head

sequence

Flywheel

(OTC

cylinder

seating of

For

other

2-7

torque

HP Tecumseh

These are

JOHN

DEERE Service

tools

Nut.

required

They are

for

from

Adapter.

7

A)

7

A)

*********************

bolts to

shown to

head

the

values

Engine

available

Manual

140-200

head

and

refer to

Service

through

assure

gas-

the

channels

RM ENG 4

4wM£WL

CLEANING

important

is

It

fins

and

maintain

Remove

the

sembled,

air to

Cover

When

starter

guide

clean

gas

reassembling

attached,

in

crankshaft.

SHROUDS

of

free

proper

shrouding

tank

gas

hard to

line

starter

the

AND

keep

to

grass and

cooling

and

when

cleaning

the

be sure

S3

,jm>?i*W.,

*********************

FINS:

the

of

use

get

starter

compressed

at

with

shrouding

the

centered

is

shrouding

debris

engine.

the

areas.

fins.

with

nylon

on

RM ENG

to

as-

the

5

WgW

W

j^SSSSjjjfe.

•

8

.

SECTION 20

ENGINE 3

ENGINE

Set

rider

Loosen output

Remove

of

and

Remove

the

Set

and

engine

REMOVAL:

the

parking brake

up on

the

sheave.

the

output

disconnect

the

engine

the

rider

remove

in

Disconnect

throttle

Remove

up

tamination.

and

the

cover

the rear stand.

belt

guides

3/8"

cap

sheave.

mower

transmission

sheave.

back

the

(4)

place.

the

safety

control

gas

cable.

tank

line

RM

ENG

and raise the

on the

screw in

Remove

drive

engine

the

sheave

belt.

belt

center

from

*********************

down

bolts

start

by

to

on its

holding

wires

pulling

prevent

wheels

the

and

straight

con-

RM

ENG

6

7

CAUTION:

there

Turn

quarter

Refer

gine

is

the

turn

to SM

Service

procedures

Reverse

the

stallation

Gas

no

shut-off

engine

and

2091,

Manual

removal

of

will

counter

remove

the

leak

out

of

tank

as

valve.

*********************

clockwise

from the

2-7

HP

for engine

procedure

engine.

Tecumseh

one

rider

En-

service

for

in-

70

ENG

*********************

13

-

6

SECTION 20

ENGINE 4

THROTTLE CABLE

Place the control

speed

Be

in

of

position.

sure that

the

slotted

the

control

Align the carburetor control

shown, so

the control lever is in

the slot in the carburetor control cov-

This

er.

movement

Any

right

Place

control

choke operating arm.

This will align

the

lever itself.

Then, install

tor control

begins to close

3/32"

a

cover slot, choke lever,

choke operating lever and

control cable and remove

INSTALLATION:

lever in the

the

control

holes

cover

on the

plate,

left

are

lever as

that

hole in the

the

alignment

is the

high-speed position.

of the

control lever to

the choke.

alignment pin through

the

control

Tighten the

control

lever. Tighten clamp on

cable in

cover with

choke

cover

alignment pin.

high-

screws

side

loose.

crook of

with

and

screws.

carbure-

RM ENG 8

the

The alignment pin used

standard wire coat

was

hanger.

***********

RECOIL STARTER DISASSEMBLY:

Disconnect safety start

move

sembly to

Remove starter

bolts holding

(4)

the flywheel shrouding.

assembly.

wires

the starter as-

*********************

cut

from a

and re-

•&&&&•&•&&&&

RM ENG

9

-

7

SECTION

ENGINE 5

20

Pull

knot

Untie

and

remove

and

safety

Untie

unwind

brake.

Removal

low

complete

Note

and

the

starter

out

in

the

slip

slowly,

of the

starter

rope

knot

on

metal

start

knot

using

retainer

disassembly

position

spring.

rope

outside

the

end

retainer,

assembly.

*********************

and

allow

your thumb

of

the

and

screw

of

starter

tie

of the

of

the

handle,

spring

the

a slip

housing.

rope

to

as

will

starter.

dog

washer

a

al-

RM ENG

RM

ENG

10

11

The

can

recoil

be

removed

spring

by

*********************

has

a

turning

retainer,

as shown.

which

RM ENG

*********************

12

SECTION 20

ENGINE 6

When

post

reassembling,

and recoil

stall the

lock tabs in

recoil

place.

grease the

spring

spring retainer

AAA******************

Install the starter dog,

return spring and

brake spring as

lightly.

starter

center

In-

and

dog

shown.

RM ENG

13

14

^

*********************

Reassemble retainer and screw

45-55

inch pounds.

*********************

Hold starter as

brake to

as a

is being

in the knot

wound.

wind until

to

knot

unwind

only

opening

shown, using the

retain the pulley as

Insert

opening in

tight.

is positioned

Allow

sufficiently so

tighten retainer

thumb

it

suitable tool

a

pulley and

the

the pulley to

that the

shown.

as

ENG

RM

RM ENG

15

11

-

9

SECTION

ENGINE

20

7

Insert

knot

Tie

in

a slip

starter

start

bracket,

tainer

Test

by

be

smooth,

quickly

pletely,

the

rope

the

opening

knot

housing,

may

be

pulling

the

and

the

if

it is

as

shown

in

the pulley.

on

the

outside

so

that

washer,

handle

reinstalled.

the

rope.

starter

rope

of the

dog should

should

*********************

and

seat

the

safety

and

Action

retract

correct

the

of the

re-

should

emerge

com-

length.

10

SECTION

ENGINE

20

8

rN

ENGINE

TROUBLE

ENGINE FAILS TO START

A. Clutch and mower pedals not In

pro-

per starting position.

B.

Carburetor not adjusted

C. Throttle lever not set properly.

D. Spark plug wire loose or

properly.

discon-

nected.

E.

Spark plug

ENGINE STOPS

improperly gapped.

WHEN

PEDALS ARE ENGAGED

Rope starter not retracted to hold neu-

tral switch arm against engine.

On Electric

Start

"RUN" position instead of

56

Riders,

"OPERATE'.'

Key is in

HARD STARTING

Faulty Ignition.

A.

Check for spark by spark

to the

engine and

plug and grounding

cylinder head. Crank

observe the spark.

removing

the plug

the

If

no spark, check:

SHOOTING

ENGINE

A. Check

.030.

Check for

B.

just

Fuel

See

Check

C.

improper

or

D. Pitted

replaced

be

Check

A.

ture.

Stickly

B.

ignition.

Use only

A.

gasoline.

Check

B.

MISSING

spark

plug

lean fuel

carburetor

Section.

dirty

for

type

worn

or

with a

BACKFIRING

carburetor

Fuel

See

intake

KNOCKING

quality

a

engine

UNDER

for

high speed

(fouled)

plug.

breaker

new set.

for

Section.

valve

grade

overheating.

for

LOAD

proper

mixture.

spark plug

points

lean

improper

or

of regular

gap

screw.

fuel

-

Ad-

should

mix-

1. Spark plug gap is

2.

3.

Spark

or

Breaker

or

plug electrodes

fouled. Replace

point gap is

breaker points are

pitted.

4. Faulty

B. Faulty Carburetion.

1. Gasoline

the

may

and

Carburetor may

2.

magneto.

may not

carburetor

plugged.

be

fuel line.

adjustment.

incorrect.

plug.

incorrect

be getting

because

Clean fuel

be dirty

are pitted

worn or

to

fuel line

tank

or out

of

11

C.

D.

E.

Check

top of

Check

ture.

crankcase

carburetor

Possible

proper

combustion

in

plug

See

loose

timing

hole.

Fuel

connecting

or

chamber.

oil level.

for lean

Section.

excessive

Fill to

fuel

rod,

carbon

mix-

im-

:

A.

Overheating.

1.

2.

3.

4.

LOSS

Check

and

Check

line

Use

Check

OF

and

engine

for

with

regular

carburetor

mixture.

Check

little

oil

Crankcase

at

the

top

Check

gap-

breaker

ENGINE

clean

shrouds.

use

high

gas

for

in

is

full

of

ENGINE

POWER

intake

of

premium

octane

only.

for

lean

excessive

engine

crankcase.

when

the

plug

points

for

TROUBLE

screen

gaso-

rating.

fuel

or

too

oil

is

hole.

proper

SHOOTING

A.

Check

Fuel

B.

Dirty

C.

Check

D.

Check

gasket.

Possible

condenser.

CONT.

ENGINE

carburetor

Section.

carburetor.

and

set

carburetor

leaky

WILL

spark

SECTION

ENGINE

NOT

IDLE

adjustments.

plug

for

air

valves

or

20

9

gap

leaks

faulty

-

See

.030.

in

B.

Dirty

1. Check

C.

Choke

ing

1.

Check

A.

Carburetor

B.

Clogged

C.

Water

clean

D.

Loose

E.

Loose

F.

Air

or

G.

Carburetor

H.

Fuel

at

Make

cable

ENGINE

the

leaks

gasket.

tank

Air

Filter.

and

is

Partly

Full

Throttle.

sure

is

OPERATING

following

setting.

fuel

in

fuel.

fuel

line.

throttle

spark

plug

in

jet

cap

clean

air

Closed

throttle

properly

ERRATICALLY

line.

Drain

cable.

wire.

carburetor

clogged.

vent

hole

filter.

When

choke

Operat-

control

adjusted.

fuel

and

connections

plugged.

12

.

^

SPECIFICATIONS:

SYSTEM

FUEL

Type

Fuel

CLEANER

AIR

Type

Clean

Replace

ADJUSTING

If the or starts

Fuel

of

Tank

every 25

when

CARBURETOR:

engine misses,

hard, carburetor

may be required.

Regular

2 U.S.

AM 30900 dry

hours of

dirty.

backfires, surges

adjustment

gasoline

quarts

filter

service.

RM

FS 1

SECTION

FUEL

SYSTEM

30

1

^

Idle adjustment and

ment must

each affects the

lows

:

Turn

1.

be made at

high

speed

high speed

the same time as

other.

Adjust as fol-

adjusting screw

clockwise until closed. Screw on

the left on

for 56. Close finger tight only.

Then

2. Turn

wise

open

idle adjusting screw clock-

until

55 and on the

complete

one

closed. Screw on the

turn.

right on 55 and in the center on

Close

56.

Then

Start engine

3.

lever to the

Allow

Turn

4.

turn

open one and

high-speed

each time,

finger tight only.

and raise throttle

"run" position.

engine to

warm

adjusting screw 1/8

forward

one-half

up

until engine runs smoothly at

throttle. Keep

slightly

maximum

thick

Final idle adjustment should be

5.

on

power

grass.

screw

the rich side

when moving tall or

position

made at an engine speed of

1700 rpm. Move throttle

lowered "Idle" position

idle adjusting

time, forward and

engine

idles smoothly.

screw

backward,

1/8

adjust-

bottom

turns

backward,

or

full

(open) for

1200 to

lever to

and turn

each

turn

until

13

SECTION

FUEL

SYSTEM 2

30

Raise

check

If

engine

is

too

adjusting

until

obtained.

is

noticed,

Readjust

until

engine

screw

engine

adjusted

require

CARBURETOR

The

55

Riding

diaphragm

with

For

a

float

complete

components

to SM

vice

2091,

Manual.

throttle

for

uniform

misses,

lean.

Turn

screw

positive

If

excess

mixture

idle

screw,

good

balance

idles

adjusts

idles.

and

smoothly.

the

will

adjustment.

SERVICE

Mower

carburetor.

type.

service

of

the

carburetors,

2-7

HP

Tecumseh

lever

quickly

to

acceleration.

gas-air

high

mixture

speed

counterclockwise

acceleration

exhaust

is

too

if

is

achieved

speed

This

is

not

factory

normally

can be

smoke

rich.

necessary

and

The

top

at which

the

*************************

is

equipped

The

on the

with

56 is

internal

refer

Engine

70 ENG

a

equipped

Ser-

13

The

fuel

access

Lift

straight

Note

CAUTION:

gine.

as

there

retainer

careful

and

carburetor.

of

not

tank

other

Gas

is

may

up

tabs

will

no

shut-off

to

get dirt

be

engine

on

tank

holding

leak

*********************

removed

components.

out the

valve.

in

* *

for

to remove.

tank

to

tank

Be

the

gas

* *

*******

easy

en-

line

14

RM

FS 2

******

SPECIFICATIONS:

SECTION

ELECTRICAL

40

SYSTEM

1

^

Ignition High

Spark

Breaker Point Gap

Optional Electric

Requires

Plug

Includes

Gap

battery,

Starter,

Start (BM 15529)

DEERE

JOHN

Starter

Switch,

Wire

Harness,

AM 30094,

External

*********************

WIRING

Shown is the wiring diagram for

and 56 Riding Mowers.

There is no charge circuit as

are

The

with

start

tem

There is a

clutch-brake

and

DIAGRAM AND

equipped with manual recoil

and 56 Riding Mowers are

55

safety start system.

a

circuit is simply a

connected to the

safety

pedal,

recoil

start

SAFETY

engine magneto.

switch

mower

mechanism.

START SYSTEM:

grounding sys-

on the

clutch

*********************

the

55

the mowers

starters,

equipped

The safety

drive

pedal

RM

ELECT

p^„

Tension Flywheel Magneto

0.030 in.

0.020 in.

56

24 AMP. Hr. 12 volt

Battery

1

/

Charger (AM32400)

y

Lpi

i

only

If the engine is to

safety

vent

is a

switch. Note when the

the magneto

condition is obtained at the drive

clutch-brake

ing brake. The mower clutch

"open" when the pedal is

gaged

switches must

grounding

drawing of a

is grounded.

pedal

position.

start, the pedal

be "open" to pre-

magneto.

the

of

closed and open

switch is closed,

by setting

in the disen-

Shown

The "open"

the park-

switch

*********************

safety

is

15

ELECT

RM

2

-

The

engine

tion

ing

switches

and

mower

on

the

engine

If

the

pedal

out

the

to

start.

between

clutch

recoil

switch.

drive

is

engaged,

magneto

switch

the

on

is merely

magneto

the

pedals.

starter

clutch-brake

that

and

drive

rope

switch

the

connec-

and

the

clutch-brake

Pulling

closes

or

mower

will

engine

will

ground-

out

the

clutch

ground

fail

RM

b—

»-™^

ELECT

/""

1

SECTION

40

ELECTRICAL

SYSTEM

2

^

When

the

clutch

switches

With

the

"open".

the

engine's

drive

for

normal

the

magneto

The

56

start

ing

stalled.

The

kit

diagram

operation

works in

addition

the key

the

connection

to

and

closed.

the

engine.

drive

pedals

are

recoil

clutch-brake

are

open,

start

neutral

This

permits

clutch-brake

operation

and

killing

Riding

Mower

available.

after

of the

the

same

of

a key

switch

is in

between

foot

pedal

Foot

pedal

and

mower

disengaged,

the

engine

rope

start

engagement

or

mower

without

the

pedal

will

start.

retracted,

switch

clutch

is

of

pedals

grounding

engine.

the

***************

has

an

electric

Shown

the kit

safety

way

as

start switch.

the

safety

engagement

is

the

has

been in-

start

system

before with

When

"run"

switches

position

engine

magne-

is

will

wir-

the

kill

When

the

position

foot

pedals

key

the

switch

circuit

can be

is

in

is

open

engaged.

the

and

"operate"

the

,

SECTION 40

ELECTRICAL

SYSTEM

3

If the engine does

tries, check the

few

lowing

Be sure the in the choke

gine) or run gine)

Be

in the park

Check to

is

If

perly,

magneto

The throttle

ment,

in

than stop.

sequence.

throttle control

position

position (for a

starting.

for

sure the

drive

position.

that the mower

see

disengaged.

pedals and

the

check the throttle

connection to

is not

causing

position

grounded

cable may

the

the control

on

not start

system in

(for a

after a

the

fol-

lever is

en-

cold

RM

ELECT

warm en-

clutch-brake

pedal is

clutch

pedal

*********************

set pro-

plate at

sure

out.

out of

be

are

that

adjust-

be grounded

panel

other

the

RM

ELECT

controls

be

magneto to

4

5

"

If the magneto

check the

see if

to

an

Use switches.

Start

brake

the

switch

safety

there are

ohm

with

pedal.

meter to

the

terminals

clutch-brake

observe

the

ohm meter.

and

close,

properly

pedal.

Replace the

ceed to

be

contacts

The

switch

check the other switches.

connection

start

switch

Connect

pedal

switch

If

the

sure that

bracket

**************

checks

wiring

loose

any

check

.

back

open switch

the

is

if

the safety

at

the

ohm

Move

and forth and

does not

the

drive

adjustable.

defective, or pro-

O.K.

harness

connections.

drive

meter

the drive

close

clutch-

to

and

on the

open

switch

arm

clutch-brake

RM ELECT

*********************

-

17

6

SECTION

40

ELECTRICAL

SYSTEM

4

Lock

the

park

Connect

safety

Move

pedal

switch

Again,

proceed

With

and

rope

the the

the

ohm

recoil

to

switch

drive

position.

the

ohm

switch

back

open

and

check

or

replace

drive

mower meter

starter.

activate

on

the

clutch-brake

meter

on

the

mower

and

forth

close

adjustment

switch

*********************

clutch-brake

clutch

to

ohm

the

meter.

pedal

safety

Pull

switch

leads

on

the

of

pedal

to

clutch

to

observe

ohm

switch

as

necessary.

pedal

up,

connect

switch

the

starter

and

in

the

pedal.

meter.

and

down

on

observe

the

RM ELECT

8

On

the

tric

with

small

run to

open

56 Rider

start,

an ohm

terminals.

meter

operate

and

close.

check

position

*********************

with

the

optional

the

ignition

connected

Switch

the

to

switch

to the

key

observe

elec-

two

from

the

the switch

*********************

RM ELECT

9

-

18

SECTION 40

ELECTRICAL

SYSTEM

IGNITION SYSTEM:

If the safety circuit

checks

the engine will not start,

check the ignition spark at the

O.K.

we should

spark

plug.

At

fuel system

In

point we will assume

this

is functioning properly.

situation of

a

cranking but not

starting, carburetor, fuel

should all be checked as

line

that the

tank and

they may

be malfunctioning.

The

first check

spark plug

the

plug grounded as

would be to remove

crank the engine with

and

shown. If weak

or no spark is produced, check the

plug gap.

necessary to install

be

the old

re test

Proper

is pitted

plug

by cranking

is .030. It may

gap

new plug if

a

burned.

or

engine.

but

,

the

spark

Then

KM

ELECT

10

*********************

If still no spark is produced, it

be necessary to remove the

and flywheel to gain access

nition points.

A strap wrench like the one

handy tool for holding

while removing

the nut on

shaft.

kjcic&-kj<

shrouding

to the ig-

shown is

the flywheel

the crank-

will

m

k'k

a

m

,

k

k-k-k&

,

k'k

11

,

k

ELECT

RM

,

i

k

k-k

i

,

k

$:

19

SECTION

40

ELECTRICAL SYSTEM

6

Apply

bar

a small

as

shown

Never hit

with

a hammer

shaft.

amount

to help

on the

as this

of pressure

remove the

end of the

may

flywheel.

crankshaft

break

crank-

with

a

RM

ELECT

SECTION 40

ELECTRICAL SYSTEM

8

r>

ENGINE

When

TIMING:

short

blocking

other service

moval and

mounting

will be

follows:

as

1.

replacement of

core and

necessary to

Remove the

with recoil

and flywheel.

2. Remove

ket.

Turn the

3.

high point of

causes the

Set

4. Turn

ton reaches

Then turn

clockwise until

down .080/.

linder

5. Loosen

core

cylinder.

the

meter or

shown.

the engine

which requires

work

plate

assembly,

time the

engine shrouding

starter

cylinder head and

crankshaft

the

points to open.

the point gap

crankshaft until

top-dead-center.

crankshaft

the

below

090

block surface.

the two

and plate

screws that

assembly

Remove

point

terminal

flashlight

for any

re-

coil

the

it

engine

assembled

gas-

until

the

ignition cam

.020.

pis-

the

counter-

piston

top

moves

of cy-

hold

the

to

the leads

from

when using

tester as

ohm

RM

ELECT

15

Connect

one tester

terminal and

ground.

Position the

ignition cam

that

so

just begins

breaks the

This

will be

shown on

Tighten core

mounting

ment.

screw to

Reassemble

install

when

bolts to

new

reassembling.

140-200 in.

point

lead to

other lead to a

the

core and

to open

breaker

continuity

the tester.

and plate

plate

on

the

assembly

crankshaft

points.

and

assembly

retain adjust-

engine. Be

cylinder

Tighten

sure

head

lbs.

to

gasket

head

*********************

-

21

SECTION

40

ELECTRICAL

SYSTEM

7

There

coil:

1.

2.

3.

4.

5.

Make

the

all of

instructions

which

tester

and

check

spark

When

do

problem.

replacing

not

plate

engine

are five

Coil Coil Coil

test.

Continuity

Coil

these

came

with

is

available,

to see

remove

assembly

out

of time.

tests

power

high

speed

surface

ground

tests

and

your

if

points

or

loosen

as this

test.

ignition

70 ELECT

for an

test.

insulation

test.

according

to

specifications,

tester. If

install

this

will

no

a new

correct

coil

the

*********************

or ignition

the

core and

will

throw

coil

the

70 ELECT 20

19

SPECIFICATIONS:

Brakes

Type

Parking

Friction,

Hand lock to

pedal

operated

foot

SECTION 50

POWER TRAIN 1

brake

Clutch

Transmission

Type

Gear

Selections/

Lubricant

Differential

Lubricant

Travel

2nd. Gear

Speeds

1st. Gear

Reverse

REPLACING

Depress

TRANSMISSION

drive

parking brake.

stand.

rear

engine

NOTE: Bend

inch clearance

stalling

output

new belt.

2

EP

Bevel

EP Lithium (AT

(MPH)

55 & 56

55 & 56 55 & 56

clutch-brake

Raise rider up

Loosen

sheave.

the

belt

guides to 1/16

the sheave

from

Forward, 1

Lithium (AT

Axle Assy.

Gear

DRIVE

BELT:

pedal

guide on the

V-belt

Gear box

Reverse

30408)

MPH

2.5

MPH

4.0

MPH

2.5

and set

on the

1/8-

to

when in-

RM MOW 2

Remove

the

following

rear lift

pin.

Remove

from the

*********************

mower from the

sequence. Remove

washer and

pin,

the quick pull

lift rod and

PTO

*********************

rider in

the

right

quick pull

pin and

washer

engagement rod.

23-

RM

MOW

3

SECTION

POWER

50

TRAIN 2

Remove

CAUTION:

to

Remove

idler

Bend

sheave

Remove

new

NOTE:

from

the

prevent

the

arm.

belt

away

belt

Bend

the

installing

front

Hold

it

idler

guides

from

in

the

belt

draft

the

from

sheave

on

sheave

engine

reverse

guides

transmission

new

belt.

arm pins.

mower

falling.

with

one

hand

RM MOW

*********************

from

clutch

transmission

and

remove

sheave.

order.

to

1/4-inch

input

sheave

input

belt.

Install

when

RM

PT

4

1

DRIVE

Raise

Remove

Loosen

way.

CHAIN

rider

the

chain

Disconnect

move

Replace

cedure

drive

chain

.

REPLACEMENT:

up on rear

mower

chain

chain.

idler

by

as

explained

and

at spring

reversing

*********************

stand.

slide

before.

out of the

clip and

removal

RM PT

re-

pro-

2

*********************

-

24

SECTION

50

POWER TRAIN

3

n

BRAKE ADJUSTMENT:

Adjust

1/2

parking

distance by justable

parking

-inch

above the

lever is

moving the

parking

lever so pedal

footrest when

locked. Adjust

nut on the

lever.

is

1/4 to

this

ad-

*********************

With

the the rear

rod spring

This is

holder

NOTE:

pedestal when making this adjustment

be able

the

parking brake

locked position,

of the brake

is compressed

the distance

and swivel.

It may

to read the scale.

necessary

be

adjusted and

adjust the

1/8

the

-inch.

rod so

between the

to remove the

nut

brake

spring

the

in on

to

RMPT

3

4

Brake

or disc replacement

without

Remove the brake

cap screw

transmission.

275 in. lbs.

TRANSMISSION

Remove

for transmission drive

Remove the

move the snap

mission input

the input sheave off

belt.

service work, such

may be performed

disassembly

linkage

holding the brake

Torque the

when reassembling the

REMOVAL:

the mower in the same

clutch idler pulley and re-

ring holding sheave in place.

brake

as

of the transmission.

and

assembly

cap screw

the

pad

12

brake.

point

to the

*********************

RM

PT

1

sequence as

belt

and remove

replacement.

the trans-

Pull

the drive

**************

25

-

SECTION

50

POWER TRAIN

4

Remove

to

the

and

seat

Remove

sion

quick

and

separate

the

frame

assembly.

the

spring

pull pin

bolts

(4)

and

cotter

on the

from brake

brake

RM PT

lift

holding

off

the

pedestal

*********************

key holding

brake

rod from

the

link.

link

Remove

connector

transmission.

ten-

RM PT

5

5A

Remove

mission mission

CAUTION:

the

lower

the

to the

from

Do

two

bolts holding

(4)

frame.

the

frame.

not

lose

bolts.

*********************

the

Lift

the

spacers

trans-

on

RM PT

6

*********************

26-

TRANSMISSION DISASSEMBLY

Place shift lever in the neutral posi-

tion as shown.

Remove

bolts

7

housing and lift

in

cover off.

*********************

No.

1 is the

No.

2 The

gears is

Assembly.

Input Shaft

shaft

called

with

the

the large

Intermediate

Assembly.

bevel

Shaft

PT

RM

RM PT 8

SECTION

POWER TRAIN

7

1

i

50

5

No.

the

The

3

Output Shaft.

shaft

with

the disc brake

is

To

disassemble

remove

and

press

Remove

needle

To

disassemble

forks

ball

lease

and

plate

snap

ring

shaft

woodruff

bearings.

or

cam

springs

the

spring

and

top

Input Shaft

holding

out

of the

key,

the

shift

assembly,

first.

pressure

cover

plate.

pinion

thrust

Assembly,

gear

pinion

gear.

washer

and

RM PT

10

*********************

lever,

remove

This

on the

shifter

the

will

cam

detent

re-

RM

PT

11

SECTION

50

POWER TRAIN

6

NOTE:

It

is

disassemble

upper

Remove

Lift

Cam

Remove

two

housing.

four

off

cover

plate

may

the

shoulder

TRANSMISSION

not

always

the shifter

screws

shifter

screws

holding

plate and

then

be removed.

forks by

REASSEMBLY

necessary

assembly

in

to

the

*********************

shift

on each

cover

removing

fork.

plate.

lever.

the

RM PT

12

*********************

RM

PT 13

Install

shoulder

be

able

the

shifter

Torque

each

to

shifter

screws.

travel

track.

shoulder

fork with

The shifter

the full

screws

40-50

two

fork must

distance

in. lbs.

of

-28-

*********************

SECTION

POWER

50

TRAIN

7

Grease

stall

be able to travel

the cam

Replace

the

cam plate

the cam plate.

track.

the

shift lever.

bottom of the cover

install.

cover plate goes

The

extended

to the

shift lever.

Install the four

plate.

Torque

Install the

screws

to

detent balls and

Apply pressure when

cover in place.

Unless

balls and

you may

num

pressure is applied

springs by the

strip the threads in

housing.

lightly and

The cam plate must

the full distance

in-

of

RM PT 14

Grease the

plate lightly

and

portion of the

the

25-30

knob side of

the cover

in

in. lbs.

A********************

springs.

screwing detent

against

cover as

alumi-

the

shown,

RM PT 15

r>

Torque screw in

cover

25-35

*********************

Assemble input

needle

(2)

woodruff key on

Pinion

over key.

shaft.

NOTE: When rebuilding a

in

gear has

the original housing,

washers if

accurate end play

blies.

the end

shafts after

If

play should be

shaft as

bearings, thrust

input shaft.

pilot to

a

Press

possible.

new

pinion in place

This will give

on all

washers are

assembly.

*********************

lbs.

in.

shown. Install

washer and

start

pinion

on

transmission

use the

shaft assem-

required,

.010 to

same

.020 on

RM

PT

16

29

:

Press

lower

stall

input

Always

if

possible.

freely

Assemble

Press parts

Work

special

on

from right

input

housing

spacer

shaft

reuse

in

housing.

output

shaft

from

washers

on

outside

the

Be

shaft

key

in

hand

assembly

the

and

same sure

spacer

input

back

inside

snap

of

out.

ring

transmission.

washers

shaft

into

In-

on

turns

*********************

RM PT

into

the

end

as shown.

shaft.

following

of shaft

Install

sequence.

first.

17

SECTION

50

POWER TRAIN

1.

2.

3. Brass

4.

5.

6.

7.

8.

Install

as

follows

1.

2.

3.

4. Flat

5.

6. Brass

7. Brake

Snap

Thrust

ring.

washer.

Key

T

28

Spur

Flanged

Washer.

T

8

Sprocket.

Snap

the

Clutch toward

22 T

ring.

parts

collar,

snap

Spur

keyway.

Flanged

washer.

Retaining

woodruff

disc.

on shaft.

gear,

bearing.

on the

ring.

gear,

(Flat

bearing.

ring.

*********************

flat side

left

hand

flat side

without

side

key.

out)

out.

end

30

-

:

.

Assemble

Press

special

Install

lowing

hand

sequence. Work

end

1.

2.

3. Washer.

4.

5. 22

6.

7. Washer.

8. Retaining

Install

follows

intermediate

woodruff

parts

of the shaft

Clutch

on the

collar (collar

reversible)

Bevel

gear, smooth

Woodruff key.

T

Spur

Flanged

the

parts on

gear with

bearing.

ring.

shaft

as shown.

key into

shaft in the

from the right

first.

is

side

keyway

the

left hand

shaft.

fol-

out.

as

RM PT

18

SECTION

POWER

50

TRAIN

9

1. Bevel

2.

Flanged bearing.

3. Washer.

4. Retaining

Install

Output

termediate Shaft

transmission

pads are in

shaft.

put

tact brake

Be sure to align

ter

so the

gear,

Shaft Assembly

Assembly

housing. Be

place when installing

Do not

pads.

clutch

shifter

alignment. These

center

of transmission will give

tral lever position.

Set

flange bearings

notches in the

Fill

lower

(EP

Lithium

lower housing.

case

AT

half

30408)

spur side

ring.

out.

*********************

into lower

sure brake

allow grease

collars in cen-

grooves

fork

two

fork grooves in

so stops engage

with

grease.

and In-

out-

to con-

are

neu-

in

RM PT 1

:

SECTION 50

POWER

TRAIN

10

Replace

tral

80-90

The and

cover.

position.

in. lbs.

washers

the

Output

transmission

turn. They

will give

shafts.

ANALYSIS

Bevel

shock

Output

torque.

Radius

signs

gear

load.

bearing

of

shifting

on the

Shaft

housing,

should

-

.010

cracked

failure

shifter

Be

sure

Torque

lever is in

seven

Intermediate

outside

should be

not be tight.

.020

end play in

or

broken

caused

collars

on

the

case bolts,

of the

indicates

by

indicates

go.

neu-

Shaft

free to

This

these

high

RM

PT

DIFFERENTIAL

Remove

placing

Remove

with

Remove

spacer

Loosen

off

the mower

transmission

both

lock

wheels,

on

chain

large

sprocket

nut thru

axle

differential.

Remove

aligning

frame.

the

bolts

bearings

(Two

ASSEMBLY

as

rear

wheels

spacer

shaft.

tightener

to

holding the

on the

on

each side.)

REMOVAL:

explained

for

re-

RM PT

drive belt.

by

removing bolt

axle shaft.

washers,

and

*********************

and

lift

the

inside

axle

chain

self-

to

of the

the

RM PT

22

*********************

-

32-

Lift

the

shown.

side

out first.

need of

sheave.

differential

Raise

removing the

and pivot the right

This will

assembly

engine output

out as

eliminate

hand

the

RM PT

23

SECTION

POWER TRAIN 11

50

n

r

DIFFERENTIAL

Disassemble

ing the

ential.

Remove

to separate

axle shaft

REASSEMBLY:

Assemble

washers

(4)

the

pinion

to the

*********************

DISASSEMBLY:

the

differential

thru

bolts

snap ring from

bevel

and housing

gear thrust washer,

in the differ-

half.

*********************

assembly

outside.

by remov-

the axle

as shown with

shaft

RM PT

24

ait*.

25

*********************

-

33

.

SECTION 50

POWER TRAIN

12

Begin

the

assembling the

long

(right)

differential

shaft side. Re-

axle

assemble axle shaft in differential

housing

and install thrust washer,

vel gear and snap ring.

Fill

grease

housing

(AT

half

30408)

with

EP

Lithium

A********************

Install

shown

place.

Pack

with

both halves

grease.

and lay the pinion assembly in

thru bolts in housing

(4)

of the differential

with

be-

as

RM PT 26

RM PT 27

STEERING

SHAFT

REMOVAL:

RM

MISC 1

SECTION

MISCELLANEOUS

70

1

r*

nuts

Remove

to

Remove

wheel by

Pull shaft out

the

steering

the

the handlebars

driving out

holding

shaft.

******************

or

the groove

the bottom

the tie

steering

the rider.

of

rods

pin.

RM

* *

MISC 2

To

reinstall

bottom. Be sure

top and

the tie rods back to

shaft, push

nylon bearings on

bottom remain in place.

*********************

shaft in from the

the steering

Connect

shaft.

RM MISC

3

*********************

-35-

SECTION

70

MISCELLANEOUS

2

THROTTLE

Remove Remove

quadrant

CONTROL

handlebars

screws

(3)

in

place.

CABLES:

or steering

holding the

wheel.

control

RM

*********************

MISC

4

36

-

SPECIFICATIONS:

SECTION 80

MOWER

1

^

n

55 Rider 56 Rider

There

on

Remember,

result

is

a difference

a sale and

a large number

from over

MOWER OPERATION

Engage the

pedal

steering

small

The

the front of

notch

pedal

mower lift

in the

height

to 3-inches.

When mowing

the

mower in the

engine at

Adjust

transmission

mower by

on the

(1)

column. Disengage

(2)

the

quadrant

1/2-inch. The

in heavy,

full throttle

the

ground speed with

speed.

MOWER REMOVAL

26"

Mower

28"

Mower

between

a profitable

application.

depressing the

right hand side

on right

lever

(3)

seat pedestal. Each

adjusts the cutting

range

raised position.

sale".

of problems can

by depressing

hand side.

is located

of

tall grass,

when mowing.

(4)

the desired

***********

"a

cut

profit

large

the

of

in

is

start

Operate

1

*********

RM

MOW

RM MOW

1

2

Depress

set

Raise

all belt guides

NOTE: Bend

1/8-inch

installing

Remove

following

rear lift pin,

Remove the quick

the

rod.

drive

parking

rider up

clearance

the

lift

rod

clutch-brake

brake.

the

new belt.

mower

sequence.

and

pedal

on the rear stand. Loosen

on the engine

guides to adjust

from the sheave

and

output sheave,

1/16

to

when

***********

from the

Remove the right

washer

pull pin

mower

rider in the

and quick pull pin.

and washer from

clutch

engagement

**********

RM MOW

3

*********************

-

37

SECTION

MOWER

80

2

Remove

CAUTION:

to

prevent it

Install

cedure.

MOWER

Loosen

sheave.

NOTE:

when

the

Pull

they

sheave.

spring locking

washer.

pivot

the

front

Hold

mower by

BELT

REPLACEMENT

belt

Belt

are

Lift idler

post.

the

from

guides and

(1)

guides

1/8

draft

arm

mower

falling.

reversing

******

are

properly

to

1/4-inch

(2)

assembly

pins.

with

removal

turn

and

one hand

pro-

*

*******

away from

adjusted

away from

remove

off

(3)

RM MOW

* * *

RM

MOW

* *

4

*

5

Remove

idler

sheave

remove belt.

Install

sure

against idler

new belt

belt

in

is installed

sheave.

LEVELING MOWER

Park

a sidewalk or

Disconnect

accidental

With

the mower

on

a

concrete driveway.

the

spark plug

starting.

the mower in the

measure the distance

from

degrees

at the

mower.

measurements

of being

the ground.

each time and

front, rear and

When the mower

should be

the same.

Rotate the blade

(4)

from arm

and

reverse order.

with back

side

*****************

flat

surface such

wire to prevent

raised

of

measure distance

each side

is level,

within 1/8-inch

one

position,

blade

of the

these

tip

90

Be

as

RM

MISC

6

-J<r iV 4f

£

»£. -J- »»- J,

-

38

SECTION 80

MOWER

3

^

1. To adjust

loosen bolt on right

press down

blade is

To

2.

level. Tighten

adjust

pull cotter

from bracket. Turn

raise rear of

lower

level

Mower

rear of mower,

mower.

removed

MOWER BRAKE

The

mower brake

the

distance between

and

release

This

will provide

mower belt.

for side- to- side level,

or raise mower

for front-

pin in

mower, or out

for

ADJUSTMENT

is properly

pedal is 1 to 1

proper braking to the

RM MOW

front draft

deck until

nut firmly.

to-rear level,

rod and remove rod

into

rod

of

as necessary to

clarity.

arm,

yoke to

yoke

to

*********************

RM MOW 8

adjusted when

the mower engagement

-inch.

1/2

7

r>

To

arrive

ment,

mower

at

adjust

clutch

the

brake

*********************

1 to

locking

1-1/2-inch

rod.

collar

adjust-

on the

RM MOW

*********************

9

39

SECTION 80

MOWER

4

s

MOWING TIPS

Pick

and other

sonal injury

Cutting

satisfactory

will leave

a

Mow

each cutting.

which

pings which

When mowing

be desirable

Mow with

beds,

To

up all

rocks, glass,

objects that may

or

grass at

for most

sufficient

neat

1/3

Cutting

appearing lawn.

often

of

enough

the leaf

helps

less

shade out weedy

often produces dense

This

should

dense,

to mow only

for efficient

bordering

to

charge

clippings away

mowing.

the left side of the mower next

objects

sidewalks,

first

to

gear range for slow

reduce speed further,

3/4 or

1/2

setting.

sticks, toys

cause per-

damage to the mower.

1

so that

growth

or 2 -inches is

1/2

turf grasses. leaf area to give

approximately

is removed at

promotes

be removed.

tall grass, it may

and areas to dis-

dense growth

grasses.

partial swath

a

from fences,

driveways, etc. Use

ground speed.

lower throttle

RM MOW 10

This

clip-

flower

^

"This has

been

two cents worth."

our

*********************

^

40

John Deere 55, 56 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual