MTD 137-496A Manual de usuario

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TEN

CENTS

•

assembly

Model

No.

•

OPERATION

137-496A

•

MAINTENANCE

•

PARTS

LIST

Important:

Read

Safety

Rules

and

Instructions

Carefully

I

■

^IMPORTANT

It

is

suggested

that

this

manual

be

read

in

its

entirety

before

attempting

to

assemble

or

operate.

Keep

this

manual

in

a

safe

place

for

future

reference

and

for

ordering

replacement

parts.

This

unit

is

shipped

WITHOUT

GASOLINE

or

OIL.

After

assembly,

see

operating

section

of

this

manual

for

proper

fuel

and

amount.

Your

rotary

mower

is

a

precision

piece

of

power

equipment,

not

a

plaything.

Therefore

exercise

extreme

caution

at

all

times.

SAFE

OPERATION

PRACTICES

FOR

RIDING

VEHICLES

1

Know

the

controls

and

how

to

stop

quickly—

READTHE

OWNER’S

MANUAL.

2.

Do

not

allow

children

to

operate

vehicle.

Do

not

allow

adults

to

operate

it

without

proper

instruction.

Only

persons

well

acquainted

with

these

rules

of

safe

operation

should

be

allowed

to

use

your

mower.

3.

Do

not

carry

passengers.

4.

Keep

the

area

of

operation

clear

of

all

persons,

particularly

small

children

and

pets.

Stop

engine

when

they

are

in

the

vicinity

of

your

mower.

Although

the

area

of

operation

should

be

completely

cleared

of

foreign

objects,

a

small

object

may

have

been

over¬

looked

and

could

be

accidently

thrown

by

the

mower

in

any

direction.

5.

Clear

work

area

of

objects

which

might

be

picked

up

and

thrown

by

the

mower

in

any

direction.

6.

Disengage

all

attachment

clutches

and

shift

into

neutral

before

attempting

to

start

engine.

7.

Disengage

power

to

attachment(s)

and

stop

engine

before

leaving

operator

position.

8.

Disengage

power

to

attachment(s)

and

stop

engine

before

making

any

repairs

or

adjust¬

ments.

Disconnect

the

spark

plug

wire

and

keep

the

wire

away

from

the

plug

to

prevent

accidental

starting.

9.

Before

attempting

to

unclog

the

mower

or

discharge

chute,

stop

the

engine

and

be

sure

the

blade(s)

have

stopped

completely.

Dis¬

connect

the

spark

plug

wire

and

keep

the

wire

away

from

the

plug

to

prevent

accidental

starting.

10.

Disengage

power

to

attachment(s)

when

transporting

or

not

in

use.

11

.

Take

all

possible

precautions

when

leaving

vehicle

unattended

such

as

disengaging

power-take-off,

lowering

attachments,

shift¬

ing

into

neutral,

setting

parking

brake,

stopping

engine

and

removing

key.

12.

Do

not

stop

or

start

suddenly

when

going

uphill

or

downhill.

Mow

up

and

down

face

of

steep

slopes;

never

across

the

face.

13.

Reduce

speed

on

slopes

and

in

sharp

turns

to

prevent

tipping

or

loss

of

control.

Exercise

extreme

caution

when

changing

direction

on

slopes.

14.

Stay

alert

for

holes

in

terrain

and

other

hidden

hazards.

15.

Use

care

when

pulling

loads

or

using

heavy

equipment.

A.

Use

only

approved

drawbar

hitch

points.

B.

Limit

loads

to

those

you

can

safely

control.

C.

Do

not

turn

sharply.

Use

care

when

backing.

D.

U

s

e

counterweight(s)

or

wheel

weights

when

suggested

in

owner’s

manual.

16.

Watch

out

for

traffic

when

crossing

or

near

roadways.

17.

When

using

any

attachments

never

direct

dis¬

charge

of

material

toward

bystanders

nor

allow

anyone

near

vehicle

while

in

operation.

18.

Handle

gasoline

with

care—it

is

highly

flammable.

A.

Use

approved

gasoline

container.

B.

Never

remove

cap

or

add

gasoline

to

a

running

or

hot

engine

or

fill

fuel

tank

indoors.

Wipe

up

spilled

gasoline.

C.

Open

doors

if

engine

is

run

in

garage-

exhaust

fumes

are

dangerous.

Do

not

run

engine

indoors.

19.

Keep

the

vehicle

and

attachments

in

good

operating

condition,

and

keep

safety

devices

in

place.

Use

guards

as

instructed

in

owner’s

manual.

20.

Keep

all

nuts,

bolts,

and

screws

tight

to

be

sure

the

equipment

is

in

safe

working

condi¬

tion.

21.

Never

store

the

equipment

with

gasoline

in

the

tank

inside

a

building

where

fumes

may

reach

an

open

flame

or

spark.

Allow

engine

to

cool

before

storing

in

any

enclosure.

22.

To

reduce

fire

hazard

keep

engine

free

of

grass,

leaves

or

excessive

grease.

23.

The

vehicle

and

attachments

should

be

stopped

and

inspected

for

damage

after

striking

a

foreign

object,

and

the

damage

should

be

repaired

before

restarting

and

operating

the

equipment.

24.

Do

not

change

the

engine

governor

settings

or

overspeed

the

engine.

25.

When

using

the

vehicle

with

mower,

proceed

as

follows:

(1)

Mow

only

in

daylight

or

in

good

artificial

light.

(2)

Never

make

a

cutting

height

adjustment

while

engine

is

running

if

operator

must

dismount

to

do

so.

(3)

Shut

the

engine

off

and

wait

until

the

blade

comes

to

a

complete

stop

before

removing

the

grass

catcher.

(4)

Check

blade

mounting

bolts

for

proper

tightness

at

frequent

intervals.

26.

Check

grass

catcher

bags

frequently

for

wear

or

deterioration.

For

safety

protection

replace

only

with

new

bag

meeting

original

equip¬

ment

specifications.

27.

Look

behind

to

make

sure

the

area

is

clear

before

placing

the

transmission

in

reverse

and

backing

up.

INDEX

Safe

Operation

Practices.2

Assembly.3

Battery

Information.

4

Installing

the

Battery.5

Controls.6

Operating

Instructions.8

Maintenance.

9

Lubrication.

10

Adjustments.

1

1

Belt

Replacement.

1

3

Off-Season

Storage.

14

Trouble

Shooting

Chart.

1

5

Transaxle.

^

Repair

Parts.

18

Wiring

Diagram.26

Parts

Information.Back

Cover

IMPORTANT

After

striking

a

foreign

object,

stop

the

engine.

Remove

wire

from

spark

plug,

thoroughly

inspect

the

mower

for

any

damage,

and

repair

the

damage

be¬

fore

restarting

and

operating

the

mower.

The

steering

wheel

and

seat,

with

the

necessary

hard¬

ware,

are

easily

assembled

to

the

machine.

The

battery

must

be

activated

and

installed

as

outlined

in

this

sec¬

tion.

TIRE

PRESSURE

r'T—

—V\

V—4

Hex

Nut

Vi-13

Thd.

D

Spring

Lockwasher

'/a"

Screw

F

(ED

Hex

Lock

Nut

5/16-18Thd.

FOR

SHIPPING

PURPOSES,

THE

TIRES

ON

YOUR

UNIT

MAY

BE

OVER-INFLATED.

TIRE

PRESSURE

SHOULD

BE

REDUCED

BEFORE

UNIT

IS

PUT

INTO

OPERATION.

PRESSURE

SHOULD

BE

APPROXIMATELY

15

P.S.I.

EQUAL

TIRE

PRESSURE

SHOULD

BE

MAINTAINED

ON

ALL

TIRES.

MAXIMUM

TIRE

PRESSURE

IS

30

P.S.I.

CAUTION

Installation

of

tire

to

rim:

1.

Lubricate

tire

beads

and

rim

flanges.

2.

Do

not

exceed

30

P.S.I.

when

seat¬

ing

beads.

3.

Adjust

to

recommended

pressure

after

beads

are

sealed.

Belleville

Washer

G

Wing

Nut

Vi-20

H

o

Lockwasher

Hex

Nut

Vi

"

Screw

Vi-20

Thd.

FIGURE

1.

HARDWARE

SUPPLIED

rrn

Hex

Bolt

Vi-20

x

5/8

ASSEMBLY

Step

1.

Remove

the

lawn

mower

and

all

parts

from

the

carton.

Make

certain

that

all

loose

parts

and

literature

have

been

removed

before

the

carton

is

discarded.

Reference

to

right-hand

or

left-hand

side

of

machine

is

from

the

driver's

seat

facing

forward.

Step

2.

Place

steering

wheel

over

steering

shaft.

Step

3.

Secure

with

Belleville

Washer

(E)

and

Hex

Nut

(F).

See

figure

2.

Step

4.

Press

the

cap

on

the

steering

wheel

by

hand.

See

figure

2.

3

I

Steering

Wheel

Cap

Hex

Nut-

Belleville

Washer-

F

■

E

BATTERY

INFORMATION

A.

WARNING

Battery

acid

must

be

handled

with

great

care

as

it

will

blister

the

skin

and

damage

clothing.

It

is

advisable

to

wear

goggles,

rubber

gloves,

and

a

protective

apron

when

working

with

it.

B.

Neutralize

acid

spilled

on

clothing

with

dilute

am¬

monia

water

or

a

water

solution

of

baking

soda.

If

acid

gets

on

clothes,

dilute

it

with

clean

water

first,

then

neutralize.

C.

If

for

any

reason

acid

should

be

spattered

in

the

eyes,

wash

it

out

immediately

with

clean

cold

water.

Seek

medical

aid

if

discomfort

continues.

FIGURE

2

.

STEERING

WHEEL

ASSEMBLY

Step

5.

Use

the

hex

nut

and

lockwasher

to

attach

the

seat

to

the

seat

spring

in

one

of

the

three

adjustment

holes.

(See

figure

3.)

FIGURE

3.

Check

ALL

nu'»

and

bolts

for

correct

tightness.

D.

Since

battery

acid

is

corrosive

to

metals,

do

not

pour

into

any

sink

or

drain.

Rinse

empty

electro¬

lyte

containers

and

mutilate

beto

r

e

discarding.

^

WARNING

J

BATTERIES

CONTAIN

SULFURIC

ACID

AND

MAY

CONTAIN

EXPLOSIVE

GASES

(when

electrolyte

has

been

added)

A.

Keep

sparks,

flame,

cigarettes

away.

B.

Hydrogen

gas

is

generated

during

charging

and

discharging.

C.

Ventilate

when

charging

or

using

in

enclosed

space.

D.

When

using

a

charger—to

avoid

sparks—NEVER

connect

or

disconnect

charger

clips

to

battery

while

charger

is

turned

on.

E.

Always

shield

eyes,

protect

skin

and

clothing

when

working

near

batteries.

A.

Activating

the

Battery

1.

Place

the

battery

to

be

filled

on

bench

or

work¬

bench.

NEVER

activate

battery

in

unit.

Remove

vent

caps

from

all

cells.

2.

Fill

each

cell

carefully

using

battery

grade

1.250-1.265

specific

gravity.

Sulfuric

acid

to

be

3/8"

above

the

top

of

the

separators

or

to

the

split

ring.

3.

Allow

battery

to

set

for

20

minutes

to

'A

hour.

.

Add

additional

acid

if

necessary

to

bring

it

up

to

the

proper

level.

4.

Replace

the

venl^

caps.

4

5.

T

he

battery

can

now

be

charged

after

the

20

minutes

setting

period.

Battery

can

be

SLOW

CHARGED

(DO

NOT

FAST

CHARGE)

at

G

maximum

bench

rate

of

4-5

amperes

until

the

specific

gravity

reading

is

1.265-1.275.

A

charging

rate

in

excess

of

this

wifi

buckie

and

warp

the

positive

plates

end

perforate

the

separators,

if

electrolyte

hubbies

violently

while

charging,

reduce

charging

rate

until

excessive

bubbling

action

subsides,

then

continue

charging

until

specific

gravity

is

reached.

CAUTION

After

battery

has

been

in

service,

add

only

approved

water.

DO

NOT

ADD

AGD.

3.

To

install

Battery

To

install

the

battery

in

this

unit,

refer

to

next

column.

C.

Maintenance

1.

Check

periodically

(every

two

weeks

or

before

and

after

charging)

to

be

sure

electrolyte

level

is

9/16”

above

separator

plates.

Add

only

distilled

water

or

good

quality

drinking

water.

NEVER

add

additional

acid

or

other

chemicals

to

battery

after

initial

activation.

2.

The

battery

should

be

checked

with

a

hydrometer

after

every

25

hours

of

operation.

If

the

specific

gravity

is

less

than

1.225

remove

battery

and

recharge.

3.

Coat

the

terminals

and

exposed

wiring

with

a

thin

coat

of

grease

or

petroleum

jelly

for

longer

service

and

protection

against

electrolyte

corro¬

sion.

4.

The

battery

should

be

kept

clean.

Any

deposits

of

acid

should

be

neutralized

with

soda

and

water.

Be

careful

not

to

get

this

solution

in

the

cells.

D.

Storage

1.

Charge

battery

using

normal

methods.

NEVER

store

discharged

battery

as

it

will

not

recover.

2.

Store

in

cold,

dry

place.

3.

Recharge

battery

whenever

the

specific

gravity

is

less

then

1.225

before

returning

to

service

or

every

two

months,

whichever

occurs

first.

E.

Common

Causes

for

Battery

Failure

Are:

1.

Overcharging

2.

Undercharging

3.

Lack

of

wester

4.

Loose

hold

downs

and/or

corroded

connections

7

.

Excessive

loads

6.

Battery

electrolyte

substitutes

7.

Freezing

of

electrolyte

THESE

FAILURES

DO

NOT

CONSTITUTE

WARRANTY.

LIMITED

WARRANTY

For

ninety

(90)

days

of

original

retail

purchase,

the

'

.

Ts-ry

carries

a

limited

warranty

against

faulty

material

or

workmanship

by

the

battery

manufact-

1.

Open

the

hood

of

the

riding

mower,

2,

Place

the

battery

in

the

battery

case

with

the

ter¬

minal

to

the

front.

See

figure

4.

FIGURE

4.

3.

Cut

the

black

rubber

tubing

approximately

4

inches

long.

4.

Push

the

rubber

tubing

into

the

manifold

of

the

battery

and

place

the

other

end

into

the

drain

tube.

See

figures

4

and

5.

NOTE

The

vented

battery

allows

any

gases

or

liquid

from

the

battery

to

be

carried

to

the

rear

of

the

mower

through

the

drain

tube.

5

Hold

Down

Rod

Throttle

Control

5.

Hook

the

hold

down

rods

under

the

battery

case

and

place

the

hold

down

over

the

manifold

of

the

battery

as

shown

in

figure

6.

6.

Secure

the

hold

down

with

the

wing

nuts.

CONTROLS

The

controls

on

both

models

may

be

considered

as

the

Drive

Control

and

the

Cutting

Control

as

follows:

a

Throttle

Control.

The

throttle

control

is

used

to

regu¬

late

the

engine

speed

and

choke

the

engine.

The

en¬

gine

should

be

operated

from

3

A

to

full

throttle

when

operating

the

cutting

deck

or

snow

thrower

(optional).

See

figure

7.

b.

G

ear

Shift

Lever.

The

gear

shift

lever

is

used

to

shift

into

one

of

three

FORWARD

GEARS,

NEUTRAL

or

REVERSE.

See

figures

7

and

8.

c.

B

rake.

The

brake

pedal

is

located

on

the

right

hand

side

of

the

mower

and

is

operated

by

depressing

it

with

your

right

foot.

See

figure

9.

d.

B

rake

Lock.

The

brake

lock

is

located

on

the

right

hand

side

of

the

mower.

To

lock

the

brake,

depress

the

brake

pedal

and

lift

up

the

lock

button.

The

pedal

will

stay

depressed.

To

release,

depress

the

pedal.

See

fig

ure

9.

e.

C

lutch

Pedal.

The

clutch

pedal

is

used

to

disengage

the

drive

mechanism.

Depressing

the

clutch

pedal

at

any

time

will

reduce

mower

speed.

If

depressed

all

the

way,

it

will

stop

the

mower.

See

figure

10.

h.

Light

Switch.

Pull

the

light

switch

out

to

turn

on

the

lights.

The

lights

will

only

operate

when

the

en¬

gine

is

running.

See

figure

7.

f.

Clutch

Lockout.

When

the

clutch

pedal

is

depressed

all

the

way

it

can

be

locked

by

placing

the

clutch

lock¬

out

in

the

START

position

as

shown

in

figure

8.

The

clutch

lockout

must

be

in

this

position

before

the

en¬

gine

will

start.

g.

Ammeter.

The

ammeter

registers

the

rate

of

battery

charge

or

discharge.

The

ammeter

should

register

on

the

plus

side

{

+

)

when

the

engine

is

running

in

the

fast

position

until

the

battery

is

completely

charged.

With

a

fully

charged

battery

or

with

the

engine

idling

the

ammeter

will

not

show

a

charge.

See

figure

7.

7.

A

ttach

the

positive

cable

(from

the

starter

solenoid)

and

the

small

wire

(from

the

ammeter)

to

the

pos¬

itive

battery

terminal

with

the

bolt,

lockwasher

and

nut

in

the

assembly

pack.

8.

A

ttach

the

negative

cable,

grounded,

to

the

neg¬

ative

battery

terminal

with

the

bolt,

lockwasher

and

nut

in

the

assembly

pack.

FIGURE

6

FIGURE

7

.

CONTROLS

6

TRANSAXLE

DRIVE

10

START

'Lock

out

clutch

tty

(top>eKsint)

left

pedal

S

pulhnq

knob

up

mm

slat

o

•

Set

Ehiottie

to

choke

.1

engine

isc-oid

•

Disenqaqe

bladps

•

Turn

key

lo

Stan

engine

FIGURE

9.

RIGHT

HAND

CONTROLS

FIGURE

8.

SHIFT

PATTERN

i.

Ignition

Switch.

The

ignition

switch

is

located

on

the

right

side

of

the

dashboard.

Electric

Start.

See

figure

7.

Turn

the

key

to

the

START

pos't’on

to

start

the

engine.

When

the

engine

is

run¬

ning,

let

the

key

return

to

the

ON

position.

To

stop

the

engine,

turn

the

key

to

the

left

to

the

OFF

position

and

remove

it

to

prevent

accidental

starting.

NOTE

The

engine

will

not

start

unless

the

clutch

lockout

is

in

the

START

position

and

the

lift

lever

is

in

the

DISENGAGED

position.

i-

Lift

and

Disengagement

Lever.

It

is

used

to

raise

the

cutting

deck.

Pulling

it

all

the

way

back

and

locking

it

disengages

the

blades.

The

engine

will

not

start

un¬

less

the

lift

and

disengagement

lever

is

in

the

disen¬

gaged

position.

See

figure

9.

FIGURE

10.

LEFT

HAND

CONTROLS

FIGURE

11.

HEIGHT

OF

CUT

SETTINGS

k.

Cutting

Controls.

The

cutting

controls

consist

of

the

height

of

cut

stop

and

the

wheel

height

adjusters.

Height

of

Cut

Stop.

See

figure

11.

Lift

the

stop

and

set

it

at

the

desired

cutting

height.

Wheel

Height

Adjuster.

See

figure

12.

Move

the

lever

towards

the

wheel

and

set

it

in

the

desired

cutting

height.

The

cutting

height

of

the

mower

can

be

set

in

two

dif¬

ferent

ways:

FULL

FLOAT

position

where

the

deck

fol¬

lows

the

contour

of

the

ground,

and

the

SUSPENDED

position

where

the

deck

hangs

from

the

frame

of

the

rider.

The

suspended

position

is

normally

used

for

cut¬

ting

rough

uneven

ground.

7

I

To

set

the

cutting

deck

in

the

fui!

float

position,

set

the

wheel

height

adjusters

in

the

desired

cutting

height

as

indicated

in

figure

12.

Set

height

of

cut

stop

in

the

1

Vi

position.

See

figure

11.

To

set

the

cutting

deck

in

the

suspended

position,

set

the

height

of

cut

stop

in

the

desired

cutting

height

and

then

set

the

deck

wheel

so

they

just

dear

the

ground.

FIGURE

12.

WHEEL

HEIGHT

ADJUSTER

OPERATING

INSTRUCTIONS

STARTING

THE

ENGINE

Be

sure

to

follow

the

instructions

for

the

oil

and

gaso¬

line

as

described

in

the

engine

section

of

this

manual.

Step

1.

Be

sure

the

fuel

shut-off

valve

is

open.

See

figure

13.

FIGURE

13.

FUEL

SHUT-OFF

VALVE

Step

2.

Place

the

clutch

lockout

in

the

START

position.

See

figure

10.

Step

3.

Place

the

lift

and

disengagement

lever

in

the

DISENGAGED

position.

See

figure

9.

Step

4.

Set

the

throttle

control

in

the

CHOKE

posi¬

tion.

See

figure

7.

NOTE

This

unit

is

equipped

with

a

brake

in¬

dicator

light

which

is

located

on

the

dash

panel.

Whenever

the

starter

key

is

on

and

the

brake

pedal

is

depressed,

it

will

light.

CAUTION

This

light

indicates

that

the

brake

is

engaged.

Operating

the

unit

with

the

brake

engaged

will

result

in

rapid

brake

wear

and

premature

brake

failure.

Electric

Start

See

figures

14

and

15.

Turn

the

ignition

key

to

the

START

position.

When

the

engine

.s

running,

let

the

key

return

to

the

ON

position.

FIGURE

14.

STARTER

SWITCH

FIGURE

15.

DASH

PANEL

LABEL

8

NOTE

A

brief

break-in

period

is

essential

to

ensure

maximum

engine

and

mower

life.

This

consists

of

running

the

engine

at

half

speed

for

a

period

of

time

re¬

quired

to

use

one

tank

of

gasoline.

It

is

also

recommended

to

change

crank¬

case

oil

after

the

first

2

hours

of

oper¬

ation.

CAUTION

Parking

brake

MUST

be

disengaged

be¬

fore

unit

is

put

into

motion.

NOTE

Unit

is

equipped

with

separate

brake

and

clutch

pedals.

To

efficiently

stop,

it

is

necessary

to

disengage

clutch

when

applying

brakes.

STOPPING

THE

ENGINE

Turn

the

ignition

key

to

the

left

to

the

OFF

position

^

and

remove

the

key

to

prevent

accidental

starting.

CAUTION

Gear

changing

should

be

done

only

after

the

mower

has

been

brought

to

a

full

stop.

If

the

mower

is

not

to

be

used

for

a

long

period,

place

the

gear

shift

lever

in

NEUTRAL

and

stop

the

engine.

DO

NOT

leave

the

machine

on

an

in¬

cline.

OPERATING

THE

CUTTER

BLADE

The

cutting

blades

may

be

engaged

while

the

mower

is

moving

or

standing

still.

DO

NOT

engage

the

cutting

blades

abruptly

as

the

sudden

belt

tension

on

the

pul¬

ley

may

cause

the

engine

to

stall.

WARNING

When

the

blade

drive

is

engaged,

keep

feet

and

hands

away

from

the

discharge

opening

and

from

the

blade.

To

stop

the

blades,

move

the

lift

and

disengagement

lever

(figure

9)

into

the

DISENGAGED

position.

This

raises

the

deck

and

disengages

the

blades.

NOTE

When

the

machine

is

used

for

other

than

mowing

operations

the

blade

drive

should

be

disengaged.

OPERATING

THE

MOWER

MAINTENANCE

Step

1.

Set

the

desired

cutting

height.

Step

2.

Start

the

engine

as

outlined

above.

CRANKCASE

OIL

To

ensure

maximum

engine

performance,

perform

the

following

periodic

maintenance:

Step

3.

Select

gear

and

shift.

DO

NOT

force

the

gear

shift

lever!

If

the

lever

cannot

be

moved

from

NEUTRAL

to

one

of

the

drive

positons,

release

the

clutch

pedal

slowly,

depress

it

again,

and

then

move

the

gear

shift

lever

as

required.

Step

4.

Once

the

machine

is

in

motion,

remove

foot

from

the

pedal.

The

mower

will

now

move

ahead

or

to

the

rear,

and

the

use

of

the

steer¬

ing

wheel

will

provide

directional

control.

Step

5.

The

mower

is

brought

to

a

stop

by

pressing

your

right

foot

against

the

brake

pedal

and

your

IWft

foot

against

the

clutch

pedal.

The

drive

belt

will

be

disengaged

and

the

brake

will

be

applied.

Oil

Check

Check

the

oil

level

in

the

crankcase

before

each

use

of

the

machine

and

after

every

five

hours

of

operation.

Oil

should

be

kept

between

the

add

and

full

marks

on

the

dipstick.

After

the

first

five

hours

of

operating

a

new

engine,

drain

the

oil

(See

figure

16.)

from

the

crankcase

while

engine

is

still

hot

and

refill

crankcase

with

new

oil;

thereafter

change

the

oil

every

25

hours

of

operation.

This

procedure

ensures

for

minimum

wear

of

engine

parts

and

provides

for

virtually

trouble-free

operation.

To

change

the

oil,

proceed

as

follows:

Step

1.

With

the

machine

on

level

ground,

place

a

suitable

metal

container

under

the

oil

drain

plug,

then

remove

the

drain

plug.

See

figure

14.

9

Step

1.

Remove

two

screws

and

lift

off

complete

air

cleaner

assembly.

Step

2.

Remove

screen

and

spacers

from

foam

ele¬

ment.

Step

3.

Remove

foam

element

from

air

cleaner

body.

Step

4.

a.

Wash

foam

element

in

kerosene

or

liquid

detergent

and

water

to

remove

dirt.

b.

Wrap

foam

in

cloth

and

squeeze

dry.

c.

Saturate

foam

in

SAE

30

engine

oil,

then

squeeze

out

excess

oil.

FIGURE

16.

OIL

DRAIN

Step

2.

After

the

oil

has

been

drained

completely

from

the

crankcase,

replace

the

drain

plug

and

tighten.

Step

3.

Refill

crankcase

with

2Vi

pints

of

good

quality,

type

MS,

Engine

oil

into

the

crankcase.

Sum¬

mer

use

SAE

30;

Winter

(Below

40°

F)

use

SAE

5W-20

or

SAE

10W.

(Use

Wizard

4

Cycle

Pow¬

er

Mower

Oil

Stock

No.

78-2050).*

LUBRICATION

Lubricate

the

wheel

bearings

(2

per

wheel)

and

the

FIGURE

18.

AIR

CLEANER

upper

and

lower

spindle

bearings

with

SAE

30

oil

once

a

season.

See

figure

17.

d.

Assemble

parts,

fasten

to

carburetor

with

screw.

FIGURE

17.

WHEEL

AND

SPINDUE

BEARINGS

AIR

CLEANER

Under

normal

operating

conditions,

the

air

cleaner,

lo¬

cated

on

top

of

the

carburetor,

must

be

serviced

after

every

ten

hours

of

use.

Under

extremely

dusty

oper¬

ating

conditions

the

air

cleaner

must

be

serviced

after

every

hour

of

operation.

Refer

to

figure

18.

When

assembling

the

air

cleaner,

make

certain

the

lip

of

the

foam

element

extends

over

edge

of

the

air

cleaner

body.

The

foam

element

will

form

a

protective

seal.

‘Obtain

from

your

nearest

Western

Auto

Store.

CLEANING

ENGINE

AND

BLADE

HOUSING

Any

fuel

or

oil

spilled

on

the

machine

should

be

wiped

off

promptly.

Grass,

leaves,

and

other

dirt

must

not

be

left

to

accumulate

around

the

cooling

fins

of

the

engine

or

on

any

part

of

the

machine.

Clean

the

underside

of

the

blade

housing

after

each

mowing.

BELTS

Check

thjt

belts

are

free

of

oil

or

dirt.

Wipe

the

belts

periodically

with

a

clean

rag.

NOTE

Belt

tension

is

automatically

maintained

by

the

spring

on

the

variable

speed

bracket

on

the

drive

belts

and

the

belt

tension

on

the

deck

belt

is

maintained

by

the

two

deck

springs.

SPARK

PLUG

The

spark

plug

gap

should

be

cleaned

and

reset

to

a

0.030-inch

clearance

every

25

hours

of

engine

oper¬

ation

(See

figure

19.)

Spark

plug

replacement

is

rec¬

ommended

at

the

start

of

each

mowing

season;

check

engine

parts

list

for

correct

plug

type.

10