Kubota K-348-7 User manual

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•

• I

TA

48

"

Rotary

Mo

wer

K-348-6 (For B-6

000

Series only)

and K-348-7

·

48"

Rotary Mower

No.

10117--2!!-ll-li

-C

"!".

Printed

In

U.

S.

A.

K-348-6

and

K-348-7

TABLE

OF

CONTENTS

(Reference

Pictures

on

outside

rear

cover)

Page l

Safety

Precautions

Page 3

Assembly

Inst

ructi

ons

Page 5

Attaching

Mower

to

Tractor

Page 6

Operating

Instructions

Page 8

Servicing

Instructions

Pa

ge

l l Engineeri

ng

Draw

i

ng

of

K-348

-6

and

K

-348

-7

Page 12 Parts Li

st

(main

bo

dy

and

component

s)

Page 15

Engineering

Drawing

and

Parts

List

(

Gear

Box)

Page

16

Engineering

Drawing

and

Part

s

List

(Drivel

ine

)

*

Packing

List

and

Hardware

Bag

Lists

on

inside

rear

cover

Please Record

the

Fol

lowing

:

Mode

I

No.

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

SeriaI

No

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

Date

Pu

re

ha

sed ...............

__

.

__

___

..

__

.

___

--

----

-__.

___

-----·----·-

_.

__

..

__

..

____________

_

Dea

I

er'

s

Na

me

_._....._........._..

__

.

___

..

_.

____

__

_

__

___

_

_________

_

__

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

..

DeaI

er'

s

Address

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

__

.__._..__

_______

....

___

.

___

----

···

--

-----·

__

.

__

.

_____

...

K-348

- 6 -

K348-7

Safety

Precautions

The

following

precautions

are

suqqested

to

he:p

prevent

accidents.

Read

this

manua:

carefully

to

acquaint

ourself

with

the

rotary

mower.

Working

with

unfamiliar

e

ui

ment

or

unfamiliar

mowing

conditions

can

lead

to

accidents.

TRACTOR

RELATED

SAFETY

1.

Familiarize

yourself

with

a~l

controls

before

atternptinq

to

operate

the

tractor.

2.

Never

start

the

engine

while

standing

beside

the

tractor.

Always

sit

in

the

tractor

seat

while

starting

the

engine.

3.

Use

care

when

operating

on

steep

grades

to

maintain

proper

stability

.

4.

Keep

the

tractor

in

gear

when

oinq

downhill.

5.

Always

keep

the

tractor

brakes

in

good

operating

condition

.

6.

Always

drive

the

tractor

at

speeds

compatable

with

safety,

especially

when

operating

over

rough

ground,

crossing

ditches,

slopes,

or

when

turning

.

7 .

If

the

front

end

tends

t~

rise,

install

~ront

end

or

front

wheel

weights.

Do

not

continue

to

operate

with

a

"light"

front

end.

8.

Always

bring

the

tractor

to

a

complete

stop

and

shut

off

the

engine

before

getting

of~

the

tractor.

9.

The

operator

should

never

qet

of

while

the

tractor

or

machine

are

in

motion.

Pa

e 1

EQUIPMENT RELATED SAFETY

1.

Never

allow

passengers

to

ride

on

the

mower

or

tractor.

2.

Never

leave

the

equipment

in

a

raised

position.

3.

When

operating

P.T.O.

-

driven

equipment,

always

shut

off

the

engine

and

wait

for

the

P.T.O

.

to

stop

turning

before

getting

off

the

tractor

and

before

disconnecting

the

equipment.

4.

Never

wear

loose

clothing

when

operating

the

power

take-off,

or

around

equipment

that

is

rotating.

5.

Never

clean,

adjust,

lubricate,

or

unclog

P.T.O.

driven

equipment

with

the

tractor

engine

running.

6.

Make

sure

the

P.T.O.

shield

is

installed

when

using

P.T.0.-

driven

equipment,

and

always

replace

the

P.T.O.

shield

if

damaged.

7.

Give

complete

and

undivided

attention

to

the

job

at

hand

.

8.

Do

not

operate

mower

in

vacinity

of

other

persons

.

9.

Clear

the

work

area

of

objects

which

might

be

picked

up

and

thrown.

10.

Disengage

P.T.O

.

and

shift

into

neutral

before

attempting

to

start

tractor

engine.

11.

Disengage

power

to

mower

when

transporting

or

when

not

in

use.

12.

Keep

the

tractor

and

mower

in

good

operating

condition

and

keep

all

shields

in

place.

13.

The

tractor

and

mower

should

be

stopped

and

inspected

for

damage

after

striking

a

foreign

object,

and

any

damage

be

repaired

before

restarting

and

operating

the

mower.

14 .

Check

the

blade

mountinq

bolts

for

proper

tightness

at

frequent

intervals.

Page

2

K-348

- 6

and

K-348-7

Assembly

Instructions

1.

Remove

all

parts

fro~

the

shipping

carton

and

lay

them

out

in

an

orderly

fashion.

(The

mower

mainshield

and

drive

components

have

been

assembled

at

the

factory

for

customer

convenience

and

ease

of

final

assembly.)

Elevate

mainshield

assembly

by

placing

6"

- 8

11

blocks

under

runners.

This

will

make

wheel

installation

eas~er,

later

in

the

procedure.

2.

Front

Hitch

:

Attach

front

strut

(5

&

6)

on

inside

of

hitch

brackets

with

hitch

pins

(52)

pointed

to

the

center

of

the

mower.

Do

not

tighten

hitch

pins

until

rear

brace

has

been

assembled.

Install

rear

brace

(7)

by

attaching

to

mainshield

with

(10)

7/16

x 1

1/4

bolt,

nut,

and

lockwasher

and

attaching

to

front

strut

with

(53)

5/8

x 3

1/2

bolt,

nut,

and

lockwasher.

Securely

tighten

the

bolts

and

hitch

pins

on

the

front

hitch

and

rear

brace

assembly.

(Figure

1)

3.

Front

Roller

Wheel

Assembly:

Assemble

front

ro

ller

wh

eel

brackets

(20)

and

wheels

(2

1)

with

g

rease

bolt

(46),

flat

washers

(47)

(washers

go

be

tween

bracket

and

wheel)

,

and

lock

nut.

Note

:

Grease

bolts

should

be

installed

so

that

the

grease

zirks

point

toward

the

outside

of

the

mower

when

assembly

is

mounted

in

position

(this

facilitates

easier

lubrication

of

wheels)

.

Tighten

grease

bolt

securely

,

but

not

so

tight

as

to

prevent

the

wheel

from

turning

freely

.

Mount

the

roller

wheel

assembly

to

the

front

of

the

mower

with

(55)

7/16

x 1

1/4

bolt,

nut

,

and

lockwasher

and

flat

washers

Page

3

4.

(one

on

front

side

and

one

on

backside

of

mower

housing)

.

Note:

Front

roller

wheel

brackets

are

slotted

for

adjustment

for

desired

mowing

height.

(Fi

ure

1)

Gauge

Wheel

Assembly:

(Caster

Wheels)

Assemble

tire

and

wheel

(

19)

and

gauge

wheel

fork

(

18)

with

(2

8)

3/4

x 5

bolt,

(29)

3/4"

flat

washer

and

(30)

3/4

II

lock

nut.

(Flat

washers

go

between

wheel

and

fork)

.

Securely

tighten

bolt,

bu.._

not

so

tight

as

to

prevent

the

wheel

from

turning.

Insert

gauge

wheel

fork

assembly

into

gauge

wheel

main

frame

(16)

securing

assembly

with

set

collars

(17).

Mount

gauge

wheel

main

frame

assembly

on

the

outside

edge

of

mainshield

rib

with

(37)

7/16

x 1

1/2

bolt,

nut,

and

lock

washer

.

Adjust

gauge

wheels

to

desired

cutting

height.

Be

sure

when

adjusting

gauge

wheels

that

the

mower

is

level

from

left

to

right

to

attain

a

level

cut.

(Figure

2)

Driveline:

Attach

driveline

(56)

to

gear

bo

x

input

shaft

with

1/4"

square

key

1

1/2"

lg.

(60).

Tighten

allen

head

set

screw

to

secure

drive

line.

Note:

Recheck

all

bolts

and

fastners

for

tightness

and

check

grease

in

gear

box

before

final

assembly

can

be

complete

.

Page

4

K-348-6

and

K-348-7

Attaching

Mower To

Tractor

Attach

tractor

lift

arms

to

mower

hitch

pins.

Secure

driveline

to

the

tractor

P.T.O.

shaft.

The

K-348-6

mower

driveline

(25mm-

10

spline

yoke)

utilizes

a

3/16

x 3

1/2

cotter

pin

(58).

The

K-348-7

mower

driveline

( 1

3/8

- 6

spline

yoke)

utilizes

a

quick

attach

pin

to

secure

the

driveline.

Be

sure

the

quick

attach

pin

seats

into

the

pin

groove

on

the

tractor

P.T.O.

shaft

.

Attach

adjustable

3rd

link

arm

to

the

slotted

mast

of

the

mower.

attach

the

anchor

end

of

3rd

link

to

the

tractor

in

the

top

hole

of

the

bra

cket.

(Figure

3)

The

mower

is

now

attached

to

the

tractor

.

Now

raise

the

mower

~ith

the

tractor

lift

so

that

the

tractor

is

carrying

the

mower

weight

.

Adjust

the

anti-sway

chains

on

the

tractor

lift

arms

,

so

the

mower

is

centered

behind

the

tractor.

Snug

the

chains

to

eleminate

any

side

sway

of

the

mower.

Page

5

•

Trac

tor

Ope

ration

K

-348

- 6

and

K

-348-7

Operating

Instructions

This

mower

is

intended

for

law~

mowing

.

Although

it

is

more

than

ad

equate

for

this

type

of

mowing

it

is

no~

intended

for

heavy

weed

or

br

ush

mowing

or

rough

conditions

.

Always

operate

PTO

in

second

gear,

820

-

840

RPM

.

Recommended

ground

speed

1.5

to

4

MPH

for

most

mowing

condi

tions.

If

ground

speed

is

too

fast,

a

lower

gear

should

be

used

to

maintain

the

PTO

RPM

.

Belt

AdJus

tment

The

b

elt

tension

c

an

be

checked

between

the

left

rotor

and

cente

r

rotor

(standing

at

rear

of

mower} .

This

tension

should

be

4

to

6

pounds

of

force

to

deflect

the

belt

1/4".

(rigure

4}

To

adjust

the

belt,

loosen

the

back

nut

on

the

I -

bolt

(51}

and

adjust

I -

bolt

to

a

ttain

th

e

correct

belt

tension

. A

fter

the

belt

tension

has

been

set

there

is

usually

no

need

for

t.

urtb~r

tQnfti9ning,

due

to

the

spring

loaded

arm.

If

belt

slippage

occurs

usually

two

full

turns

of

the

nut

on

the

I -

bo

lt

wil

l

be

adequate

to

eliminate

slippage

.

Always

check

belt

tension

after

adjusting.

Belt

slippage

usually

occurs

when

an

obstruction

is

encounte

red,

or

mowing

heavy

ma

terial

at

too

high

of

ground

speed

or

a

loose

belt.

Note:

uo

not

over

tension

the

belt

because

it

may

result

in

a

shorter

belt

li=e

and

bearing

life.

Mowing

Grass

The

mower

should

be

run

level

and

the

uncut

area

kept

to

the

left

of

mower

traveling

in

a

counter

clock

wise

direction.

The

front

roller

wheels

should

be

adJusted

so

that

they

clear

the

ground

on

the

level.

They

will

then

contact

the

ground

on

uneven

terrain

and

help

to

prevent

scalpinq.

On

certain

grasses

or

seasonal

conditions

it

may

appear

that

the

mower

is

leaving

a

strip

or

wheel

track.

If

this

occurs

reduce

the

ground

speed

by

down

shifting,

and

keeping

the

PTO

speed

at

full

or

near

full

RPM

.

In

tall

or

heavy

grass

it

may

be

necessary

to

raise

the

mower

to

a

higher

cutting

heiqht

and

mow

the

grass

once

and

then

set

the

mower

at

the

desired

mowing

height

and

remow,

t

he

area

.

Page

7

K-348

- 6

and

K-348-7

Servicing

Instructions

Lubrication

*

Use

a

high

quality

m~lti

-

p~rpose

lithium

base

grease

for

all

lubrication

points

.

*

*

*

*

Grease

blade

rotor

bearings

(six)

every

8

hours

of

operation.

(One

or

two

shots

of

grease

will

be

adequate

. )

Grease

rear

caster

wheels

and

pivot

bearings

every

8

hours

of

operation

.

Grease

front

roller

wheels

every

8

hours

of

operation.

Grease

driveline

shafts

every

8

hours.

In

some

cases

grease

zirks

have

not

teen

provided

because

they

do

not

always

adequately

lube

all

four

sides

of

the

shaft.

If

this

is

the

case

a

smear

of

grease

on

each

of

the

four

sides

of

the

shaft

is

adequate

.

Failure

to

keep

driveline

shafts

greased

and

telescoping

freely

may

result

in

damage

to

other

driveline

parts

.

*

Grease

the

driveline

universal

joints

every

24

hours

(One

or

two

shots

of

grease

will

be

adequate)

.

Note

:

Do

not

over

grease

any

lubrication

point.

Wip

e

excess

grease

from

the

parts

as

it

will

collect

dirt

and

may

cause

premature

failure.

Lubrication

-

Gear

Box

The

gear

box

lubricant

is

a

high

grade

industrial

type

grease

that

is

normally

good

for

the

lifetime

of

the

gear

box.

Generally

it

is

not

necessary

to

add

grease

to

the

gear

box,

however

due

Page

8