Sears 917.253580 User manual

ISearsI

MODEL NO.

917.253580

OR

917.253590

42

INCH

AND

48

INCH

ROTARY

WER

ATTACHMENT

FOR

SEARS

GARDEN

TRACTOR

OW

ER'

ANUAL

Assembly

Operation

ainlenance

Repair

Parts

Sears,

Roebuck

and

Co.,

Chicago

.

Ill.

60684.

U,

S.A.

and

Si

.

mpsons

Sears

Lir

nit

ed,

To

r

onto,

C

an

ad

a

another free manual from www.searstractormanuals.com

CONGRATULATIONS

on

your

purchase

of

a Sears Rotary

Mower. It has been designed, engineered and

manufactured

to

give

you

the

best possible dependability and performance.

Should

you

experience any problem

you

cannot

easily reme-

dy,

please

contact

your

nearest Sears, Roebuck and Co. or

Simpsons

Sears Limited Store.

They

have

competent,

well-

trained

technicians

and

the

proper tools

to

service

or

repair

this

unit.

Please read

and

retain this manual. The

instructions

will

enable

you

to

assemble,

operate

and maintain

your

mower

properly. Always observe

the

"RULES

FOR

SAFE

OPERA·

TION".

WARRANTY

FULL ONE YEAR

WARRANTY

For one year

from

date

of

purchase,

Sears

will

repair any defect in material

or

workmanship in this

tractor

attachment,

at

no charge.

If

the

tractor

attachment

is

used

for

commercial

or

rental purposes, this war-

ranty applies

for

only

thirty

days

from

date

of

purchase.

Warranty service

is

available by simply contacting

your

nearest

Sears

store

throughout

the United States.

This warranty

gives

you specific legal rights, and you may have

other

rights

which vary

from

state

to

state.

TABLE

OF

CONTENTS

RULES FOR

SAFE

OPERATION

ASSEMBLY INSTRUCTIONS

PRE·USE

ADJUSTMENT.

OPERATING INSTRUCTIONS

MAINTENANCE INSTRUCTIONS

REPAIR

PARTS.

OPTIONAL EQUIPMENT

ASSEMBL

Y

OF

GAUGE WHEELS

GAUGE WHEEL REPAIR

PARTS.

SEARS, ROEBUCK

AND

CO.

Sears

Tower

BSC

41-3

Chicago, IL 60684

1

2

5

6

7

10

15

16

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RULES FOR SAFE OPERATION

A LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT

SAFETY

PRECAUTIONS. IT MEANS--ATTENTION! BECOME

ALERT! YOUR

SAFETY

IS

INVOLVED.

1. Know

the

controls

and

how

to

stop

quickly. READ TH E

OWNER'S

MANUAL.

2. Do

not

allow children

to

operate

the

vehicle. Do

not

allow

adults

to

operate

it

without

proper

instruction.

3. Do

not

carry passengers. Keep children and pets a safe dis-

tance

away.

4.

Always wear substantial

footwear.

Do

not

wear loose fitting

clothing

that

could

get

caught

in

moving parts.

5.

Keep

your

eyes and mind

on

your

tractor,

mower

and

the

area being

cut.

Don't

let

other

interests

distract

you.

6. Do

~ot

attemPt

to

operate

your

Tractor

or

mower

when

not

In

operator

s seat.

7. Always

get

on

or

off

your

tractor

from

the

operator's

left

hand

side.

8.

Clear

the

work

area

of

objects

which might be picked up

and

thrown.

9. Disengage all

attachment

clutches

and shift

into

neutral be-

fore

attempting

to

start

the

engine.

10. Disengage power

to

atta9hments

and

stop

the

engine be-

fore leaving

the

operator

s position.

11. Disengage power

to

mower,

stop

the

engine and

disconnect

spark

plug wire(s) from

spark

plug(s) before cleaning,

making an

adjustment

or

repairs.

12.

Disengage power

to

attachments

when

transporting

or

not

in use.

13.

Take

all possible

precautions

when

leaving

the

vehicle un-

attended,

such as disengaging

the

power-take-off, lowering

the

attachments,

shifting

into

neutral,

setting

the

parking

I brake,

stopping

the

engine, and removing

the

key.

14.

Do

not

stop

or

start

suddenly

when

going uphill

or

down-

hill. Mow up and

down

the

face

of

slopes

(not

greater

than

150

);

never across

the

face.

15. Reduce speed

on

slopes

and

make

turns

gradually

to

pre-

vent

tipping

or

loss

of

control.

Exercise

extreme

caution

when

changing

direction

on

slopes.

16. Do

not

shift

gears while going

up

or

down

slopes. Choose

a gear low

enough

to

negotiate

the

slope

without

stopping

and shifting gears.

To

reduce speed, move

throttle

lever

to

slow.

17. Never

mow

in

wet

or

slippery grass, when

traction

is

un-

sure

or

at

a speed which could cause a skid.

18.

Stay

alert

for

holes

in

the

terrain and

other

hidden

hazards.

19. Do

not

drive

too

close

to

creeks, ditches and public high-

ways.

20.

Exercise special care

when

mowing

around

fixed

objects

in

order

to

prevent

the

blades

from

striking

them.

Never

deliberately run

tractor

or

mower

into

or

over

any

foreign

object.

21. Never

shift

gears until

tractor

comes

to

a

stop.

22.

Never place hands

or

feet

under

the

mower,

in

the

deflector

(discharge

chute)

or

near

any

moving parts while

tractor

or

mower

are running. Always keep clear

of

discharge

chute.

- 1 -

23.

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.

Use

count~rweights

or

wheel weights

when

suggested

in

this

owner

s manual.

24. Watch

out

for

traffic

when

crossing

or

near

roadways.

25. When using any

attachments,

never

direct

discharge

of

material

toward

bystanders

nor

allow

anyone

near

the

ve-

hicle while

in

operation.

26.

Handle gasoline with care -it

is

highly flammable.

a.

Use

approved

gasoline

containers.

b. Never remove

the

cap

of

the

fuel

tank

or

add gasoline

to

a running

or

hot

engine,

or

fill

the

fuel

tank

indoors.

Wipe

up

spilled gasoline.

c. Open

doors

if

the

engine

is

run

in

the

garage -

exhaust

fumes are

dangerous.

Do

not

run

the

engine indoors.

27. Keep

the

vehicle and

attachments

in

good

operating

con-

dition,

and

keep safety devices

in

place.

28. Keep

all

nuts, bolts

and

screws

tight

to

be sure

the

equip-

ment

is

in

safe working

condition.

29. Never

store

the

equipment

with

gasoline in

the

tank

inside

a building

where

fumes may reach an

open

flame

or

spark.

Allow

the

engine

to

cool before storing

in

any

enclosure.

30.

To

reduce fire hazard, keep

the

engine free

of

grass, leaves

or

excessive grease.

31.

The

vehicle and

attachments

should

be

stopped

and

inspect-

ed for damage

after

striking a foreign

object,

and

the

dam-

age

should

be repaired before restarting

and

operating

the

equipment.

32.

Do

not

change

the

engine governor settings

or

overspeed

the

engine.

33. When using

the

vehicle with

mower,

proceed

as follows:

a. Mow

only

in

daylight

or

in

good

artificial light.

b. Never make a

cutting

height

adjustment

while

the

engine

is

running if

the

operator

must

dismount

to

do

so.

c.

Shut

the

engine

off

when

removing

the

grass

catcher

or

unclogging

chute.

d. Check

the

blade

mounting

bolts for

proper

tightness

at

frequent

intervals.

34.

Check

the

grass

catcher

bags

frequently

for

wear

or

deterio-

ration.

Replace

with

new

bags

for

safety

protection.

another free manual from www.searstractormanuals.com

LEVER

PLUNGER

FIGURE

1

To

assemble

your

Mower you will need:

a

9/16"

Wrench

and

a Hammer

When R.H. (Right Hand)

or

LH.

(Left

Hand)

is

used, it means from a position

behind

the

steering wheel

as

if

you

were

seated

on

the

tractor

seat

and

facing forward.

ASSEMBLY

1.lnstall

Lift

lever

using:

two

Flat Washers,

two

Lockwashers and

two

Hex

Nuts

found

in bag

of

parts.

a. Place Lift Lever (Fig. 1) over Lever

Quadrant

and

tilt

bottom

of

Lever

outward

to

align Bolts

in

Lift

Shaft

Weldment with holes

in

Lever.

b. Install

lift

Lever

to

end

of

Lift

Shaft

Weldment

(Fig. 1).

Be

sure Lift Lever Bracket straddles Lever

Quadrant

and

that

Lever fits on

end

of

Lift

Shaft

. Secure

with

Flat

Washers, Lockwashers

and

Hex Nuts. Tighten Nuts se·

curely.

c. Depress Lever Plunger and move Lift Lever

to

middle

of

Lever Quadrant_ Drive Drive Lock Pin

through

Lever,

Lever

Quadrant

and

Lift Lever Bracket.

ASSEMBLE

MOWER

TO

TRACT

1.

Check

tractor

tire pressure for

proper

inflation.

2.

Drive

tractor

to

an area

that

is

smooth

and level.

3.Position

mower

on

R.H. side

of

tractor

as

shown

(Fig. 2).

4.Turn

tractor

steering wheel

to

the

extreme

left.

5.

Lock all

four

Attaching Plungers in

the

"OUT"

position.

S.Move

Lift Lever

to

the

extreme

rear position.

7.

Slide mower

under

tractor

until Suspension Arms are

directly

beneath

Hangar Brackets. NOTE:

Be

sure

end

of

Snubber

Pull Rod

is

extending

to

front

of

tractor

and

be-

tween

front

wheels.

8.

For ease

in

attaching

mower

to

tractor,

place a

two

foot

long 2 x 4 (or similar object) flat wise under

each

end

of

mower (Fig. 3).

9.

Move Lift Lever

to

the

extreme

forward position.

10.Grasp

suspension arms by

the

Spring Boxes. Raise R.H.

suspension arms and align with holes

in

Front

and

Rear

Hangar Brackets.

11.

Release

front

Plunger so

that

Plunger enters hole in R.H.

Front

Hanger Bracket.

12.

Release rear Plunger so

that

Plunger

enters

slot in R.H. Rear

Hanger Bracket.

13

.Repeat

steps 10,

11

and 12 for L.H. side

of

mower.

14.Pull

Lift Lever back

to

Iift mower.

15

.Remove Blocks from under each

end

of

mower.

FIGURE 3

2x4

................................

-2-

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18.Slide

Idler Shaft Assembly

into

Tractor Channel (Fig. 4).

17.Install Spring

found

in

bag

of

parts.

OFFSET-----.~::~~

LOOP

Hook

Offset

Loop

of

Spring

into

hole in rear

of

Front

Axle

Bracket.

Hook

other

loop

of

Spring in hole in Idler

Shaft Assembly (Fig. 5).

18.Remove

the

two

Retainer Springs and Engine

Belt

Guard.

(Fig. 4 - inset).

19.Remove

Nut,

Lockwasher and Belt Guide (Fig. 6). Place

Belt on Idler

Sheaves

and on Engine Pulley.

NOTE:

See

Fig.

6

for

proper way

of

installing Belts on Idler

Sheaves.

Back-

side (outside)

of

Belt must

be

placed in Flat (outside) Idler.

Belt must be placed in largest groove on Engine Pulley.

20.Assemble

Adjusting Pin

found

in

bag

of

parts

o~

to

threaded end

of

Belt Tightener

Link

(Fig. 5).

Retainer

Install Belt Tightener

Link

through opening in Idler Shaft

Assembly.

Attach

bent end

of

Link

to

rear end

of

Belt

Tightener Lever

Arm.

Secure Retainer Spring (Fig. 4 -

left

hand inset).

-3-

BELT

GUIDE

FIGURE 4

FIGURE 5

ENGlr4E

_

-

--.l~t.."\.,

PULLEY

FLAT

IDLER

BELT

, -

GUIDE

fI

LOCKWASHER

NUT

FIGURE 6

another free manual from www.searstractormanuals.com

FIGURE

7A

o

.__---MOWER

CLUTCH

CONTROL

PEDAL

("OFF"

POSITION)

FIGURE

7B

BELT

GUIDE

RETAINER_SPRING~IDLER

B

----u

SHAFT

ASSEMBLY

~

ADJUSTING

\ \

/'

SNUBBER

PULL

ROD

FIGURE

8

..

______________________________

..

-4-

BELT

ADJUSTMENT

1.

Adjust

belt

by

turning

Adjusting

Pin (Fig. 7)

counterclock-

wise

to

ti~hteni

clockwise

to

loosen. Engage

Mower

Clutch

Control

('ON'

Position).

Belt

is

properly

adjusted

when

Belt

can

be

squeezed together

with

thumb

and

fore

finger

(without

undue pressure)

midway

between Engine Pulley

and Idler Sheaves.

After

first

2 hours

of

mowing,

recheck

Belt

for

proper tension.

2.

Belt

from

center

to

outside mandrels

is

spring loaded there-

fore no

adjustment

is

necessary.

3.

Attach

Adjusting

to

Idler

Shaft

Assembly using:

one

of

the

large Retainer Springs

found

in bag

of

parts.

4. Assemble Belt Guide

to

Idler

Shaft. Position

Belt

Guide

Tab in

Idler

Arm

Notch

(Fig.

8).

Secure

Belt

Guide

with

Lockwasher and

Nut.

Tighten

Nut

securely.

Belt Guide

must

clear

belt

by

1/16

to

1/8

inch

at

points

A and B when

clutch

lever

is

engaged (belt

tight)

in

both

highest and lowest

cutting

position

of

mower.

If

Belt

Guide does

not

clear

by

1/16

to

1/8 inch,

Belt

Guide can

be

bent

slightly

at

points

A and B

with

pliers

or

wrench

to

achieve the proper clearance.

5.

Reassemble Engine Belt Guard

to

engine. Secure

with

the

two

Retainer Springs previously removed (Fig.

4)

.

6.

Place

Mower

Clutch

Control

Lever in

"OFF"

Position

as

shown in Fig.

7A

(if

Tractor

is

equipped

with

Pedal, refer

to

Fig. 7B).

7.

Complete assembly using:

o~

remallllllg Retainer Spring, Washer and

Adjusting

found

in

bag

of

parts.

a.

Thread

Adjusting

Pin on Snubber Pull Rod

until

Adjust-

ing Pin

will

enter hole in Idler

Shaft

Assembly (Fig. 8).

Remove

Adjusting

from

hole.

Turn

Adjusting

counterclockwise

6 complete turns and slip Washer

on

Pin. Insert Pin in

Idler

Shaft Assembly.

NOTE:

Mower

Clutch

Control

can

be

pushed ahead

to

assemble. Secure

with

Retainer Spring.

When

Mower

Clutch

Control

is

fully

disengaged

("OFF"

Position) blades

will

stop

quickly.

MAKE

SURE

THAT

BRAKE

IS

NOT

A

AGAINST

MANDREL

PULLEY

WHEN

MOWER

IS

ENGAGED

(LEVER

OR

PED-

AL

PUSHED

FORWARD

TO

"ON"

POSI-

TION).

8.

If

Snubber Pull Rod

is

ever removed,

be

sure

it

is

reassembl-

ed

as

shown in Fig. 9

to

Snubber Weldment and secured

with

Cotter

Pin.

NOTE:

SNUBBER

PULL

ROD

MUST

BE

POSITIONED

UNDER

MOWER

DRIVE

BELT

WITH

SLIGHT

BEND

IN

ROD

DOWNWARD

.

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PRE-USE

ADJUSTMENT

LEVEL

MOWER

FROM

SIDE

TO

SIDE

PLACE THE MOWER CLUTCH

CONTROL

IN

THE

"OFF"

POSITION, LOCK THE

PARKING

BRAKE,

SHIFT

INTO NEU-

TRAL,

SHUT

OFF

THE

ENGINE. MAKE

ABSOLUTELY

SURE

THE BLADES

AND

ALL

MOVING PARTS HAVE COMPLETE-

LY

STOPPED,

REMOVE THE IGNITION

KEY, DISCONNECT

THE

SPARK

PLUG

"WIRE(S)

FROM

THE

SPARK

PLUG(S)

AND KEEP WIRE(S) AWAY

FROM

THE

PLUG(S) TO

PREVENT

INJURY

FROM

ACCIDENTAL

STARTING

.

1.

Depress

Lift

Lever Plunger. Move

Lift

Lever

to

approx

i-

mately

the

middle

of

notched

Lever

Quadrant.

2.

Rotate

outer

blades so

that

they

are

in

line

with

width

of

the

tractor.

3.

Measure

the

height

of

the

tips

of

outer

blades (F

ig.

10).

Both R

.H

.

and

L.H.

must

be

the

same

distance

from

level

surface

within

1/8

of

an inch.

4.1f an adjl.lstment

is

required,

adjust

Nut

on

Hanger Link

at

L.H. side (Fig. 11)

to

level

mower

.

Shorten

Link

to

raise

L.H. side

of

mower.

Lengthen Link

to

lower L.H. side

of

mower.

ADJUST

MOWER FROM FRONT

TO

REAR

1.

Your

mower

should

cut

approx

i

mately

3/

16"

lower

at

front

than

at

the

rear. With R.H.

mower

blade in line

with

length

of

tractor,

measure

the

height

of

the

front

tip

of

blade

(F

ig

. 10).

Rotate

blade

1/2

turn

and measure.

The

front

tip

must

be

approximately

3/

16

of

an inch

lower

at

front

than

at

rear.

2.Adjusting

Leveling Pin Nuts (Fig. 11)

up

or

down

to

ob

-

tain

the

above pitch

or

difference

from

front

to

rear.

Adjusting

the

Nuts

up

witt raise

the

rear

of

the

mower

.

Lowering Nuts witt lower rear

of

mower.

Tighten

the

two

Nuts !Securely against Leveling Pin.

LUBRICATION

Mandrels are

shipped

lubricated, however we suggest each

mandrel be rechecked

by

applying grease.

Each mandrel

should

be fitted

with

grease

thru

the

Grease

Fi

tting

located

between

mower

blade

and

underside

of

the

mower housing (Fig. 11A). Wipe

fitt

i

ng

clean

before

greasing.

Use

high

performance,

extreme

pressure lubricating grease,

(Amdex

No. 1 EP

or

equivalent).

Add

grease until it oozes

out

around

the

cap

above

the

blade

and

under

the

sheave.

This witt

not

damage

the

grease retainer. Wipe

mandrel

ctean

of

excess grease. Under normal usage

the

mandrels

should

re-

quire

lubrication

after

every

50

hours

of

operation

and

at

the

beginning

of

each

new

season. This grease may be

obtained

by

ordering

thru

your

nearest

Sears repair parts

department.

Part

No.

2557R

.

Reattach

spark

plug wire(s)

to

spark plug(s).

-

5-

II

•

SNUBBER

WELDMENT

COTTER

h

~

I

..

-

~

I

--------~-

-

-~-

LEVEL

SURFACE

FIGURE

10

FIGURE

11A

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FIGURE

12

FIGURE

12A

FIGURE

13

-LIFT

LEVER

PLUNGER

__

----MOWER

CLUTCH

CONTROL

PEDAL

("OFF"

POSITION)

FIGURE

14

..

____________________

.........

6 .

f

it

' .'I

..l

'--

.

----

I

IIi

'll

----

'-)j

!

. I

'-_-

___

..J

,].

! '- • - • I

I

\.---.....-

- .

~

-- - - ) ,

L

----

~

.

- .

.J

•

______

.M

._.M

.....

M

..

_

...

M

__

._

.....

_.

FIGURE

15

OPERATING

INSTRUCTIONS

READ

THE

"RULES

FOR

SAFE

OPERA·

TION"

CAREFULLY

BEFORE

OPERAT·

ING

YOUR

MOWER.

THE

MAIN

DRIVE

BELT

(ENGINE

TO

CENTER

MAN·

DREL)

MUST BE

PROPERLY

ADJUSTED

BEFORE

OPERA·

TING.

A

DRIVE

BELT

NOT

PROPERLY

ADJUSTED

CAN

BE

RUINED

IN JUST A FEW

MINUTES

OF

OPERATION.

REFER

TO

STEP 1, PAGE 4.

THE

MOWER

MUST

BE

LEVELED

FROM SIDE

TO

SIDE,

AND

FROM

FRONT

TO

REAR, BEFORE

OPERATING.

(REFER

TO

PAGE 5).

THIS

IS NECESSARY FOR

LEVEL

AND

EFFICIENT

MOWING.

NOTE:

Place

Ge

ar

Shift

Lever in neutral and

unlock

Parkin~

Brake. Depress

tractor

clutch pedal awl disengage

("OFF

position) Mower Clutch

Control

(Fig. 12

or

12A).

1.Start

tractor

and set engine

speed

to

about 1/3

to

1/2

ihrot

·

tie before engaging mower. In either

case,

engage ('

ON"

position)

or

d

ise

ngage

("OF

F"

position)

Mower

Clutch

Control slowly.

After

mower

is

engaged

(liON"

position)

set

to

full

throttle.

A

NEVER

ENGAGE

("ON"

POSITION)

MOWER EXCEPT WHEN

SITTING

ON

TRACTOR

SEAT.

2.Start

mowing

in a

low

range and increase ground speed

as

conditions

will

permit

. Average cutting height

is

approxi·

mately 2 . 1/2

to

2 . 3/4 inches. Height

of

cut

can

be

ad

·

justed by means

of

the

Lift

Lever (Fig. 13). Moving

the

lever

forward lowers the mower. Moving

it

backwards raises the

mower. The lev

er

latch

is

actuated

by

depressing the latch

button

at the

top

of

the lever handle (Fig. 12). Each

notch

changes the height

of

cut

approximately

1/2

inch.

3.Should

some intermediate height be desired, loosen

the

two

Nuts at the

bottom

of

the

Lift

Lever (Fig. 13). Rotate the

Lever

forward

or

backward relative

to

the shaft. Forward

movement

will

raise

the height

of

cut. Rearward movement

will

lower the height

of

cut. This adjustment

will

raise

or

lower the

cutting

range approximately

1/2

Inch .

the

equivalent

of

one

notch

on the

Lift

Lever Quadrant.

Re·

tighten

Lift

Lever Nuts securely.

4.Drive

so

that

clippings are discharged

onto

the area

that

has

been

cut

.

See

Fig. 14

for

line

of

cut

on right hand side

of

mower.

Have

the

cut

area

to

the

right

of

the machine. This

will

result in a more even

distribution

of

clippings and more

Ufliform

cutting

. When mowing large

areas

(Fig. 15).

start

by

turning

to

the

right

so

that

the clippings

will

be

dis-

charged away

from

shrubs, fences, driveways, etc.

After

two

or three rounds,

mow

in the opposite

direction

making

left

hand turns

until

finished.

If

grass

is

extremely

tall,

it

should

be

mowed twice. The

first

time cut relatively high.

The second time

to

the desired height. The

left

hand side

of

mower should

be

used

for

trimming.

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MAINTENANCE

INSTRUCTIONS

BLADE

CARE

For

best

results

mower

blades

must

be

kept

sharp.

The

blades

can be

sharpened

with

a few

strokes

of

a file

or

on

a grinding

wheel. Do

not

attempt

to

sharpen

while

on

mower.

PLACE

THE

MOWER

CLUTCH

CONTROL

IN

THE

"OFF"

POSITION,

LOCK

THE

PARKING

BRAKE,SHIFT

INTO

NEUTRAL

AND

SHUT

OFF

THE

ENGINE.

MAKE

ABSOLUTEL

Y

SURE

THE

BLADES

AND

ALL

MOVING PARTS

HAVE

COMPLETE-

LY

STOPPED.

REMOVE

THE

IGNITION

KEY,

DISCONNECT

THE

SPARK

PLUG

WIRE(S)

FROM

THE

SPARK

PLUG(S)

AND

KEEP WIRE(S} AWAY

FROM

THE

PLUG(S)

TO

PREVENT

INJURY

FROM

ACCIDENTAL

STARTING.

When grinding, care

should

be

taken

to

maintain

blade

balance

and

the

blade

should

be

checked

for

proper

balance

before

re-

installation

on

mower.

Unbalanced

or

bent

blade will cause ex-

cessive vibration

when

running,

and

eventual

damage

to

mower

or

engine. Replace

bent

or

damaged

blades.

To

insure

satisfactory

operation,

it

is

recommended

that

be-

fore

the

start

of

each mowing season,

the

old blades be dis-

carded

and

replaced

with

new

blades. Mower blades

can

be

purchased

at

all Sears retail

stores

and

mail

order

outlets.

BLADE

REPLACEMENT

It

is

not

necessary

to

remove

mower

from

tractor

for blade re-

placement.

Raising

mower

lift lever

to

highest

position

will per-

mit

access

to

blades.

1.Remove

the

two

Hex Head Bolts

and

Lockwashers (F i

g.

16)

..

2.lnstall

new

blade

with

SHARP

EDGE DOWN

and

secure

with

two

Lockwashers

and

two

Hex Head Bolts. TIGHT-

EN

SECURELY.

ALWAYS USE

GRADE

5

HEAT

TREATED

A BOLTS

TO

ATTACH

BLADES. CHECK

BOLTS

IN

BLADES

OCCASIONALLY

TO

MAKE

SURE

BOLTS

ARE

TIGHT.

TOR-

QUE BOLTS

45

-

50

FT. LBS.

A

GRADE

5 HEAT

TREATED

BOLT

CAN

BE

IDENTIFIED

BY

THREE

LINES INDICATED

ON

THE

BOLT

HEAD

AS

SHOWN

AT

LEFT.

CLEANING

MOWER

Water pressure

from

a

garden

hose will remove fresh clippings

from

underside

of

mower.

Clean

mower

after

each

mowing.

DAILY

MAINTENANCE

Make sure all

nuts

on

bolts are tight,

cotter

pins

and

retainer

springs are secure. Keep blades sharp_ Observe all

safety

pre-

cautions.

Keep

mower

well

lubricated.

-7-

FIGURE

16

FIGURE

17

BELT

ADJUSTMENT

Remove

Retainer

Spring

from

Adjusting Pin

and

remove

Adjusting Pin

from

Idler

Shaft

Assembly (Fig. 17).

(Refer

to

Fig. 18). Remove

Retainer

Spring

from

Adjusting Pin

on

Snubber

Pull Rod

in

Idler

Shaft

Assembly. Remove

Adjust

-

ing Pin

from

hole.

(Refer

to

Fig. 17).

Turn

Adjusting Pin

on

Belt

Tightener

link

counterclockwise

to

tighten

belt, clockwise

to

loosen

belt.

Engage

("ON"

position)

mower

clutch

control

(pushed

for-

ward). Belt

is

properly

adjusted

when

belt

can be

squeezed

together

with

thumb

and

fore

finger

(without

undue

pressure)

midway

between

engine

and

idler pulleys.

After

2

hours

use

recheck

belt

for

proper

ten

si

on.

Replace retaine.-

spring

in

Adjusting Pin (Fig. 17).

Belt

from

center

to

outside

mandrels

is

spring

loaded

and

no

adjustment

is

necessary.

AT

THIS

TIME YOU MUST

ADJUST

THE

SNUBBER

PULL

ROD.

FOLLOW

THE

IN-

FORMATION

UNDER

"ADJUSTMENT

Of-

SNUBBER"

ON PAGE

8.

another free manual from www.searstractormanuals.com

RETAINER

(/

IDLER

SPRING

___

SHAFT

ASSEMBLY

FIGURE

18

UPPER

CENTER

MANDREL:

SHEAVE

BELT

GUIDE

NUTS

FIGURE

19

ENGINE

_-

_ '_

PULLEY

.'

"/

h'

• I "

11_

"

BELT

II/.

,"

i,'

.

{l'N

f;'

. •L

IDLER

SHAFT

I .

ASSEMBLY

:\..

FLAT

IDLER

BELT

"

GUIDE

~

LDCKWASHER

NUT

FIGURE

19A

ADJUSTMENT

OF

SNUBBER

(BRAKE FOR MANDRELSJ

After

belt

has

been

properly

adjusted,

adjust

Adjusting

on

Snubber

Pull

Rod

as

stated

below:

Place

Mower

Clutch

Control

in

"OFF"

position

(Fig.

7A

or

7B).

Remove

Retainer

Spring

holding

Adjusting

on

Snubber

Pull

Rod

in Idler

Shaft

Assembly.

Remove

Adjusting

from

hole.

With

the

Mower

Clutch

Control

in

the

"OFF"

position,

turn

Adjusting

on

Snubber

Pull

Rod

until

Adjust

ing Pin will

fit

freely

in

hole

of

Idler

Shaft

Assembly.

Remove

Adjusting

from

hole.

Turn

Adjusting

coun-

terclockwise

6

complete

turns

and

replace

Washer

on

against

shoulder.

Reinsert

with

Washer in

hole

of

Idler

Shaft

Assembly.

NOTE

:

Mower

Clutch

Control

can

be

pulled

ahead

to

assemble.

Secure

with

Retainer

Spring.

When

Mower

Clutch

Control

is

fully

disengaged

("OFF"

position),

blades

will

stop

quickly.

MAKE

SURE

THAT

BRAKE

IS

NOT

AGAINST

MANDREL

PULLEY

WHEN

MOWER IS

ENGAGED

(LEVER

OR

PEDAL

PUSHED

FORWARD).

If

Snubber

Pull

Rod

is

ever

removed,

be

sure

it

is

reassembled

with

slight

bend

in

Rod

downward

and

under

the

mower

drive

belt.

Refer

to

Fig.

9,

page

4.

BELT

REPLACEMENT

MOWER MAIN DRIVE

BELT

1.

Unhook

Spring

from

rear

belt

guide

bracket

of

Belt

Guide

(Fig.

19).

2.

Remove

Belt

Guide

at

center

mandrel

by

removing

three

(3)

Nuts

and

Lockwashers.

3.

Remove

Nut

and

Lockwasher

from

Idler

Shaft

Assembly

and

remove

Belt

Guide

(Fig.

19A).

Also

remove

Engine

Belt

Guard

and

Belt (F

ig

. 18).

4. Install

new

Belt

on

Center

Mandr

el

first,

then

on

Idler

Sheaves

and

on

Engine Pulley.

NOTE

: See Fig.

19A

for

proper

way

of

installing Belts

on

Idler Sheaves.

Backside

(outside)

of

Belt

must

be

placed

in flat

(outside)

Idler. Belt

must

be

placed

in largest groove

of

Engine Pulley.

Repla

ce

Belt

Guide

securely.

5. Replace Engine Belt

Guard

(Fig.

18).

6. Replace Belt

Guide

and

snubber

at

center

mandrel

and

adjust

so

that

there

is

1/16

to

1/8

inch

clearance

between

it

and

the

Sheave

.

Replace

Spring

(Fig.

19).

Adjust

drive

belt

and

snubber

refer

to

page

4,

steps

1

thru

8.

•

A_

another free manual from www.searstractormanuals.com

Sears 917.253580 User manual

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