Makita RBC252, RBC253 User Manual

Brush

Cutter

RBC252

INSTRUCTION

MANUAL

String

Trimmer

RBC253

Read

i

uies

for

operation

z-irld

instrucirons

carefully

~

Thank you very much for purchasing your and very confident

--

in

recommending our

-~

MAKITA

extensive development and substantial knowledge

Please read and understand BRUSH

CUTTER

In

order to take advantage

this

booklet thoroughly before operating

of

its

STRING

and

TRIMMER

experience

’

BRUSH

/

BRUSH

yoiii

MAKITA

outstaridincj mrfor;?-l-ince

CUTTER

STRING

We are

as

d

result

TRIMMER

prclud

of

our

of

SAFETY

Proper >afety precautions

DO

NOT

EXPOSE

to

use

this

machine unless they are thoroughly responsible and have read and understood the machine manual

2nd

are trained

1

Always weal safety goggles for eye protection conforming aopropriarely do siurdy

nonskid

YOURSELF

in

its

not

footwear

and feet be covered

Inspect the entire machine for loose parts

2

as necessary before

DO

NOT

3

iqurv

1

Keep the handles free of

Always use the proper handle and shoulder strap when cutting

5

G

7

8

Do

Ai??iays

I

crdinances

Vsver

‘J

kever

3

USE

to

the user or bystanders or damage

not smoe while not

mix

fuel

mix

and

for

remove the fuel tank cap while the engine

start

or

must

be observed Like all power quiprnent

OR

operation

wear loose clothing

should

to

protect them

using

always be

the machine

any attachment

oil

and fuel

mixing

in

an enclosed room

fuel or

store the fuel

such usage

run

the engine inside a closed room

RULES

OTHERS

from

with

in

a properly marked coitainer ‘hat is approved

TO

or

jewelry that could become caught

worn

flying

this

power head other than one recommended

filling

tank

or

near open flames Assure adequate ventilation

AND

DANGER

Long

debris

during

(nuts,

to

the engi~e could result

PRECAUTIONS

Follow these general rules

hair should be tied back

operation

bolts screws etc ) and any damage Repair

is

riirriir’cj

or

:,JiIdii-y

this

unit

to

the

ANSI

287

Fumes from the exhaust contain

must

be handled carefully

1

Safety Standard

in

moving parts

It

is

recommended that legs

by

local codes and

Do not

of

by

MAKITA

perniit others

Dress

the

unit

Safe,

or

replace

Serious

-.

dangercus carbon monoxide.

Never attempt

11

make engine adjustments

Do

12

13

not use the

Inspect the area

headicutter blade.

14.

Keep children away. Onlookers should be kept at a safe distance from the work area, at least

15.

Never leave the machine unattended.

16.

Do not use

17.

Do not overreach. Keep proper footing and balance at all times. Do

to

make engine adjustments while the

with

the

unit

resting on a flat clear surface

unit

if

it

is

this

damaged

to

be cut and remove all debris that

Also

remove any objects that the

unit

for any jobs other than those for which

or

poorly adjusted Never remove the machine’s guard

uzii

is

running

could

become entangled

unit

may

throw

it

is

intended as described

and strapped

in

during

not

cutting.

run

the

to

the operator Always

the nylon cutting

50

in

the

manual.

unit

while standing on a

ft.(

15m)

ladder or any other unstable footing location.

18.

Keep hands and feet away from

19

20

21

Do not use

Do

not

Do

not

this

type

of

machine for sweeping away debris

use the

use

unit

when

you are tired or under the influence

a damaged cutting head /cutter blade

and check thenylon cutting head /cutter blade A broken

must

22

Do not store

furnaces, etc.

never be used.

in

Store

Follow

a closed area where fuel vapors can reach an open flame

in

a locked, well ventilated area only

the

nylon cutting headcutter blade while the

of

medication,

If

a stone

or

any other obstacle

or

unbalanced nylon cutting headkutter blade

instructions for changing accessories

unit

drugs

from

is

in

use.

or alcohol

is

hit,

stop

hot

water heaters,

the

engine

-

2

Use

23

24

25

only replacement parts

parts

are available from your

potential hazard, Clean

the

machine completely. especially the

When refueling, engine

is

be

running

injury

or hot. When gasoline

those materials. Move Stay away from other workers

26

When

27

28

approaching an operator of

stops

the

engine.

Never

touch the nylon cutting headicutter blade while the

or

protector

nylon cutting head!cutter blade,

headicutter blade has

The

29

Be

30

careful not

rough operation

engine

should be turned

to

hit

will

sure

Be careful-noi

the nylon cutting head/cutter blade against stones, or the ground. Unreasonably

shorten the

that

are

identical

dealer,

!o

the user and damage

to

stop

at

leas?

or

stoppea

off

The use of any other accessory or attachment inay create

the engine and confirm

10

it.

i3m) away from the

bystanders

the

machine, carefully call

to

startle

rurning.

when the machine

life

of the machine as

to

spills,

(50

or

distract

be

original equipment

to

the machine.

fuel

tank cap,

be sure

its

that

it

to

completely wipe

fueling

ft.,

15m).

the

operator causing an unsafe siiuatim.

engine

sure

to

stop

the

is

moved between work areas.

well

as

parts

when

servicing

the

surroundings, and the air cleaner.

has cooled down Never refuel

it

away

and

prq)?!i'l

source and

his

attention and confirm that

IS

running.

engine and confirm

site

If

before

it

is

necessdi-y

that

star!inc;

tihe

rhe

7

create an unsafe environment io!'

unit:

these

a

,v!:&n

'Tispc?se

::-IS

i?ysra!or

;r,

&just

you

the

r7f

e?yirie

the

and

those around you. Pay attention to loosening and overheating of parts.

31

operation immediately and check the machine carefully.

to

qualified service facility. Never continue

In

32

33

34

i

35

36

37

38

39

startup or during operation of

wire or the spark

plug.

For a while after the engine has stopped, materials

(dry

grass. etc.), combustible gasses or combustible liquids.

Pay special attention when operating

If

you

slip

or fall

to

the ground or into a hole, release

not

to

drop

Be careful Before proceeding

cap from the spark

Before storing

the

parts. move the machine

!he

to

adjust or repair the machine.

plug.

machine

to

Make periodic inspections

the

engine, never touch hot parts such

machine

for

ar

a long

a safe place,

to

assure

operate a machine which may be malfunctioning

the

muffler

in

the rain or shortly after

hit

it

against obstacles.

time,

drain all

and

confirm that

safe

and efficient operation,

your machine, please contact your nearest Makita Factory Service Center

fire

or

Keep the machine well away from

40

41

42

Warning:

Don't

The cutter area

try

to

tackle a big job

is

dangerous

with

an

sparks.

while

the machine

undersized machine.

be

fuel

If

there

is

any abnormality

If

necessary, have the machine serviced

as

is

still

hot. Never place the machine near flammable

the

rain as the ground may be slippery.

the

throttle

sure

from the

Use

to

stop

the

engine

is

coasting

this

lever

immediately

the

engine and detach the

fuel

tank ana carburzior clear1 has cooled down.

If

you need professional inspection

to

a

machine only for trimming;

of

the machine.

the muffler, the high-vo!tage

or

authorized dealer.

stop.

stop

by

spark

it1e

use

a lawn

a

plug

of

mower for large areas.

Wear a

43

44.

Wear hearing protection for extended periods

Keep

45

Never

46.

dust

mask

in

dusty

guards and protectors

operate

this

machine

work conditions.

in

place and

while

it

in

is

turned upside-down

of

use,

and any time

working order.

or

when

the

noise

is

uncomfortable.

it

is

at an extreme angle.

CAUTION! CAUTION! CAUTION! WHEN MIXING GASOLINE

ETHANOL

OR

METHANOL

ENGINE FUEL LINES

WITH

TWO-CYCLE ENGINE OIL, USE ONLY GASOLINE WHICH CONTAINS NO

(TYPES

AND

OTHER ENGINE PARTS.

OF

ALCOHOL), THIS WILL HELP TO AVOID POSSIBLE DAMAGE TO

.'

SAVE THESE INSTRUCTIONS.

-

3

EQUIPMENT DESCRIPTION

*”

RBC252

I

RBC253

~

1

ITEM

I

NO.

1

I

FuelTank

I

Recoil Starter

Air

I

___

TSTOP Switch

#-

,

1

Spark

--Muffler

..

-

,--

i

Holder Case

T<TaT&ip

-5

2

3

4

6

-

7

8

DESCRIPTION

--

Cleaner

__

-

Plug

----

~

ITEM NO. DESCRIPTION ITEM NO.

9

_.

-

~

~~

-

10

11

13

14

--

-

15

16

18

Hanger

.-~

-

Handle

~

-

_--

Throttle

Lever

Drive

Shaft

-

1

-

Protector

-

--

Gear Case

--

.

Handle Joint Nylon Cctiing Head

~

-

_.

-

___

~

___

__

-~

-

__

- - - - --

~~

20

21

22

23

24

25

26

i

I

Fuel

Starter

--

Primer Pump

-

Choke

7.-

Exhaust Pipe Waist Pad Cutter Blade

DESCRIPTION

Filler Cap

.~-

Knob

__

Lever

----

_-

-

ASSEMBLY

STRING

TRIMMER

INSTRUCTIONS

(Model

RBC253)

FOR

Mounting the handle

1

2

3

4

Attach Install

Fig Insert

holes

Adjust tighten

the

1

the

in

the

handle

handle joint

installation

handle and

handle

installation

(Fig.

to

the

bolt

to

the desired position and

Mounting the protector

1.

Install the clamp on the drive shaft

,

projection opening between

of

the

clamp

the

gear

shaft.

2.

Attach

the

protector with two installation

M6x20.

1)

drive shaft

on

the

handle

M6x45 through

attach

the

bolt

(Fig.

2)

is

inserted into

case

and the drive

as

shown in

the

flange nut

so

that the

the

bolts

M6

Fig

1

.

..

Gear

I

-

case

Protector

Installation

Ciamp

bolt

M6x20

Fig.

2

-

,

I

i

Mounting the nylon cutting head

1

Turn

the

machine upside down

easily

install

the

nylon cutting head.

2.

Insert

the

hex wrench through the

back

of

the

gear

case

(Fig.

tightening wrench

3.

Using nut tightening washer (Fig.

4.

Screw the nylon cutting head onto the shaft

(Fig.

washer

(or

the

socket wrench, remove the left-handed

(by

turning it clockwise).

until it

shaft

is

locked).

3).

4).

so

4)

and turn the

is

locked

Also

that

you

can

hole

in

the

with

the

hex

remove the

Fig.

3

IMPORTANT!

USE

READ THE INSTRUCTIONS FOR NYLON CUTTING HEAD

(PAGE

17)

OF THE

BEFORE

OPERATING THIS MACHINE.

Fig.

4

5

TProttle

io

throttle

STEP

wire

lever

1

Throttle

wre

ano

Flcj

9

Mounting the handle and connecting the throttle

1

klatch the protrusions socket head

2

Connect the throttle wires and

bolts

Note Squeeze the throttle lever

3

Connect the switch cords

4

Wrap the waist pad around the drive shaft

pad

and

the throttle wire and

5

Secure the throttle wire

6

Cover the throttle wire and swtct?

Notes

It

IS

easier

motor

6

M5

cover

on

the handle

evenly

to

the two cords from the engine

joint

10

secure the handle

firmly

close the cable joint (as shown

to

make sure that

so

cords

w1'I

also

with

the

we clip as shown

cords

wth

to

instdl

ihe

split

tcrbing

to

rernove sixk

fiom

the

wire

and switch cords.

slot

in

the underside

(Fig

5,6)

the

throttle wire moves smoothly

by

tnat the hanger

be

wrapped under the waist pad

in

the

split

tubing (Fig

if

the bullet connectors are partially pished into the

will

figure for easy oDeratioi1

of

the handle and tighten he four

in 3 steps

inserting one

into

protrude through the

10)

in

Fig

the other

(Fig

8)

(Fig

7)

slit

9)

the wires

in

the waist

ASSEMBLY

BRUSH

CUTTER

INSTRUCTIONS

(ModelRBC252)

FOR

Gear case

Installation bolt

M6x20

Mounting the protector

Install the clamp on the drive shaft

1.

projection opening between the gear

of

the clamp

(Fig.

is

inserted into

case

shaft.

2.

Attach the protector with

M6x20.

Mounting

1.

Turn the machine upside down

2.

3.

the

cutter

easily install

the

cutter

Insert the hex wrench through the hole in

back

of

the

gear

case

it

is

locked).

socket

it

locked with

wrench, remove

clockwise).

washer until

(or

the shaft

Using

the

nut (by turning

two

blade

blade.

and turn

tightening washer.

4.

Mount

guide

in

the

cutter blade

of

the

support washer

cutter

blade.

onto

Install

the

and secure the cutter blade with the (Tightening torque:

Ibs).

130-230

11)

so

that

the

and

the

drive

installation

(Fig.

so

the

hex wrench

Also

the

shaft

fits

in

tightening washer

Kg-cm,l

bolts

12,13)

that

you

the

tightening

the

left-handed

remove

the

so

that

arbor hole

nut.

15-200

can

the

in-

r--

Protector

~

Fig.

11

I

NOTE:

Always

wear gloves when handling

blade.

WARNING:

The cutter and securely. (Fig.

If

the guide in the arbor cutter

blade

should

14)

of

the support washer doesn't

hole

in the cutter blade.

will

make violent vibration.

shortens the machine

allow

the cutter

Failure

to

install

blade

the

serious injury.

!FA

PO

RTANT!

READ

BRUSH CUTTER BLADE

OFERATING THIS MACHINE.

THE

INSTRUCTIONS

be

installed firmly

life,

but may

to loosen and

blade

correctly

FOR

USE

(PAGE

15)

the

cutter

the

It

not only

also

fly

can

7.

OF

BEFOFIE

HE

fit

brush

off.

cause

THE

PREPARING

Fuel

and

oil

This

product

Inspect the fuel tank and

tool

Use the following

FOR

mixture

is

powered

OPERATION

by

a two-cycle

fill

with

clean, fresh

mixed

gas

Gasoline Genuine Makita Two-cycle

Gasoline Other manufacturer's Two-cycle

____-

FOR

THIS

-

__

-

.

CALIFORNIA REGULATION:

EQUIPMENT

IS

CERTIFIED

TO

engine

and requires pre-mixing gasoline and two-cycle engine

fuel

and

oil

of

the

engine

oil

=

oil

50

=

proper

1

25

rrtxture

or

1

recommended

~

to

____

assure the

-.

longer

OPERATE ON GASOLINE + TWO-CYCLE ENGINE OIL

life

011

of

the

WHEN

ETHANOL

ENGINE

DO NOT

IMPORTANT:

MIXING

GASOLINE WITH TWO-CYCLE

OR

METHANOL (TYPES OF ALCOHOL).

FUEL

LINES

MIX

GASOLINE

Failure

AND

to

follow

CAUTION:

1.

When preparing fuel

mixture,

mixture that has been stored longer

poor

starting and and replaced

2.

Never-

fill

3.

Never add

4

Do

no: add

5.

Be

sure

6.

Do not

Check

1.

Check for loose bolts, Check

2.

3.

Check

attempt

points

the

to

the fuel tank to the

to

before operation

air

be sure

performance,

with

a

fresh

fuel

to the tank

fuel

to

this

wipe

off

spilled

to

refuel a hot

cleaner for dirt. Clean

that

OTHER

ENGINE

OIL DIRECTLY

groper

mix

If

mixture.

very

in

a closed, unventilated area.

unit

close

fuel

before attempting

engine.

nuts

and fittings.

protector

is

ENGINE

OIL,USE ONLY GASOLINE WHICH CONTAINS NO

THIS

WILL

HELP TO AVOID POSSIBLE

PARTS.

IN

THE

FUEL

TANK.

fuel

mix

instructions may cause damage

only the amount needed for the job you are

than

tbvo months. Fuel mixture stored longer than

fuel

mix

has been stored longer than

this

top

to

an

open fire

the

air filter

securely

in

or

sparks

to

start

the engine

of

all dirt, etc. before operation

place.

to

do. Do not

time,

DAMAGE

the

engine.

use

fuel

this

will

cause hard

it

should be removed

TO

REFUELING

Use Oil-gasoline mixture for fuel

as

noted

in

"Fuel and

Oil

Mixture" on previous page

Always

ing.

Thoroughly clean the area around the fuel filter cap, vent

Unscrew the fuel cap and

on the fuel filler cap

dirt

shut

off

the engine

from

getting into the fuel tank.

tightly(EdT.

and

fill

the

allow

tank

-I

/'3,'..

it

to

cool before refuel-

with

fuel, then screw

to

pre-

Wipe off any spilled fuel before starting. and check for leakage

Check for fuel leakage while refueling and

If

fuel or oil leakage

until

the leak

is

found,

do

not start or

fixed and any spilled fuel has been wiped

during

run

the engine

operation

away.

Avoid

skin

contact

fuel vapor. Always wear protective gloves

with

mineral

oil

products.

Do

during

not inhale

refueling.

Change and clean protective clothing at regular intervals.

Take care not contamination (environmental protection) Clean

cutter or

to

spill

either fuel oi

string

trimmer immediately after

oil

in

order

fuel

to

prevent soil

the

brush

has been

spilt

1

Figl

5

Avoid any fuel contact

ing

instantly

if

fuel has been

with

your

clothing. Change your cloth-

spilt

on

it

(a danger

to

life)

Inspect the fuel cap at regular intervals making sure that

securely tightened.

Select bare ground for fueling and move at least

10

feet

(3m) from fueling spot before starting the engine(Fy,

Never refuel

ground level

Only transport and store fuel gasoline. Make sure the stored fuel

in

closed rooms. Fuel vapors accumulate at

(risk

of

explosions).

in

a container approved for

is

not accessible

dren.

WARNING!

Gasoline

when handling gasoline any fire or flame near the fuel(FA?.

is

extremely flammable fuel

or

fuel

mix.

Use

Do

not smoke

/yI4

extreme caution

or

bring

&),

to

it

chil-

IS

1

Figl

6

Figl

7

=.

9

ENGINE STARTING AND

PROCEDURES

STOPPING

Starting when the engine

Use

the

following procedure when the engine

has beer, stopped

oeen

added

1.

S!ide

for

to

!he engine.

the

stop

longer than 5 minutes.

switch

away

(Fig. 17.18). Gently push

2.

until

fuel enters the primer

3

Close the choke lever

,aq

position

4.

Lock the throttle lever

REX252

Squeeze the throttle lever

I)

Push the lock button while releasing

ii)

RBC253

i).

Squeeze the throttle lever

ii).

Hook the lock

on

(Fig.

the primer

19:i

13)

20)

fin

to the notch

while releasing the throttle lever.

5.

Lay the machine

in

a clear area Be

blade canso: cmtact the ground

Hold

the d:ive

severa! strong

6.

After

the

by

cwng

7.

Release the throttle lever

Note:

The throttle lever

s

I

cj

Ii

t

i

v

shaft

or

pulls

to

engine has started. open

it

gradually

is

cold

from

pump

fully

by

mown3

in

the

"start"

fully

fully.

the

grip

with

the starter

to

:he

~ o ~

fully.

is

unlocked

is

cold

or

aft;.:

the

'STOP

repeated!\/

(Fig.

19)

it

to

tiic

position

in

or

any obsti-ircrion

5s

thi!

throttle lever

the throttle lever

sure

ths

one haat!

using

the

other

the

choKC

position.

by

swe

01

after

f1~ir.I

has

7 ~

1Q

tJl!cws:

cutting

and

hand.

lev?r

It

times)

line

give

fully

or

0

-

SIOD

Postion

I

Start

Position

Lock button

Lock

off

lever

,

Stop

switch

w

Throitie

level

Fig.

18

Rest

a

rt

I

ri

g

i

IT

m

ed

i

at

e

I

y

aft

e

r

the

o!

n

y

i

ii

P

h

a

s

t

o

13

ped

.

1

Slide the stop switch away

(Fig

17

18)

Gently

2

until

3

Leave the choke lever

4

Leave the throttle lever Lay

5

push

on

the

fuel

enters the primer

the

machine

primer

in

a

blade cannot contact the ground or any obstruction the

drive

shaft

or

grip

strong

pulls

to the

starter

CAUTION:

iron;

tne STOP ucsition

pump

repeatedly

pump

(Fig

in

the oDen positiorl (Fig

fully

released

19)

17

-

10

times)

19)

clear area Be sure the cutting line

Hold

with

one hand, and give

using

the

other hand

several

or

Never operate the engine at high rpm without load. With the

throttle lever fully squeezed and no load, the engine

will

be

very high which could have an adverse effect on the

life

of

the engine.

rpm

Stopping

1.

Release the throttle When

the

2

switch

to

the

engine

ievei

rpm

"STOP"

fully

has lowered,

push

the stop

position The engine w11 stop

Lock

Choke

fin

lever

\

Fig.

/

Fig.

19

20

10

CORRECT

HANDLING

OF

THE

MACHINE

I

Fig.

-

21

i-

Attachment, adjustment and detachment

of

the shoulder strap

...

..

~-

Fig

~-

22

Attachment Place the

hook into the hanger which

IS

located

on

the

shaft

between the

grip

and the handle

strap

Adjustment

Adjust

the strap

length

so

that the

nylon

cutting head / blade

VJIII

be kept parallel

to

the ground

(Fig

21)

Detachment (NORMAL)

the

i

Remove

Detachment

In

an emergency, release the throttle lever,

(FIG

22)

defixted toward you

WARNING:

Failure to maintain complete control

strap hook from the hanger.

(EMERGENCY)

Be extremely cautious

or

anyone

in

to

the

firinly

pull

maintain control

work

viciixtv

of

the

machine at

the re1;a.k

of

the

maci-

all

iJelt

upward and dei?,c? the machine

ri

at

this

time

Do

not

times

could result

in

serious

fror

allon the machine

bodily

injtiry

i

!J-

or

DEATH. Keep cutting attachment below waist

level.

_-

___

Notes:

The shoulder strap

Check Fig. as shown (Fig.

23.

that

If

the

hook

it

is

not, remove

23).

has

a quick release system

is

assembled as shown

it

and reassemble

in

it

I

Hook

Release

Strap

Belt

~-

_-

Fig

23

-

Handling the machine

Hang the machine

1.

Squeeze the throttle lever

2

run excessively

3.

During

Never strike

4.

Idle

adjustment

at idle (low speed)

grass cutting.

on

low

grass may become lammed

or

tap objects

The nylon cutting head should

is

fully

lever using

released

the idle adjusting screw

If

necessary. adjust the idle

the

right

to

Use

firmly

not

(Fig

side

of

your body

increase the rotational speed Release the throttle lever

a rotational speed suitable

in

the nylon cutting headicutter blade

hold

the machine

with

the nylon cutting headicutter blade

run

when the throttle

to

allow easy, controlled handling

for

the grass being cut

rpm

24).

I

-md

If

t

ID

roiatiJnal speed

Idle

ad!ilsiing

the

screw

erigir'e

rvill

is

USE

THE PROPER PROTECTOR

OR

CUTTER

N

y

lor1

STRING

c

U

"i

TRIMMER

rq

head

RBC253

Protec!or for

nylon

cutting

To meet the applicable safety provisions, only

used.

Be

sure

to

use genuine

MAKITA

cutter

blade

FOR

THE NYLON CUTTING

BLADE

head

Fig

the

tool/protector combination as indicated

or

nylon cutting head.

25

AS

SHOWN BELOW

BRUSH

Star

blade

Grass-pasture

HEAD

_-

CUTTER RBC252

Protecroi

i,jr

Piltai

in

the table

cutter

Fig

blade

Fig

must

24

1

26

be

-

12

CAUTION:

The appropriate protector must always be installed, to comply with accident-prevention regulations.

Operation

for

your own safety and in

of

the equipment without the protector being in place

-.

is

not permitted.

order

DAlLY

CHECK-UP AND

MAINTENANCE

cover

Fig.

27

,

I

Sponge

-

element

FIY

28

06

mm

-

07

(0024'

I

Before operation, pay particular attention to the tightness

1.

cutting head

2.

Check

3.

Clean the air cleaner every 8 hours

i).

ii).

4.

Check the spark The gap between

If

the

If

the spark

5.

Apply

hours

6.

Clean the muffler exhaust port every

7.

Check

8.

Replace the fuel

9

Overhaul the engine eyery.200 hours or yearly

10

Replace the packing andgaskets

mm

-

0028")

x

I

Fig.

29

of

the nylon cutting head. Re-tighten the ,~yIc:~

if

necessary (every

for

clogged cooling air passage and cylinder

8

hours

or

or daily).

daily.

fins.

Clean them

using

the following procedure:

if

necessary (every 8 hours

Remove the air cleaner cover. Clean the sponge element and remove any excessive adhering start Re-install the sponge element around the

gap

grease

(Fig.

the

is

30).

fuel

too

plug

to

the cleaner

engine or

plug

the

wide

is

clogged

(SHELL

filter.

lines

(Fig.

27 and

to

increase the engine rotational speed

every 8 hours two electrodes

or

too

narrow, adjust

with

carbon

ALVANIA

If

clogged,

every

No.

replace

200

hours or yearly.

with

28).

A

clogged air cleaner may make

ribs

of

or

daily.

of

the spark

plug

it.

or

fouled, clean

3

or

equivalent)

50

hours or monthly.

it

with

a

new

new ones every time the engine

it

difficult

the air cleaner case.

should

to

one

be

0.6

to

0.7

mm

it

thoroughly or replace

(0.024"

it

(Fig.

to

29).

the gear case through the grease hole every

every

50

hours

or

monthly.

is

reassembled

Fig.

dust

or

impossible

0.028").

30

or

-

I

or

dirt

da!ly)

to

30

13

STORAGE

'

When storing the

1

2

3

machine

Drain

all

fuel

from

the primer

pump

Remove the spark assure

Clear

or

that

olow

dn

any

for

a icng time drain the fuel from the fuel tank and

the fuel tank Gently

Properly dispose of the fuel

aluy

and add a few drops of

oil

;ilm

coats the engine inside, then insert and tighten the

dirt

or

dust

from the nylon cutting head and engine housing wpe them

oil-immersed cloth and store the machine

push

on the primer

in

a

in

accordance

oil

into

dry

location

pump

with

the spark

cdrbLretor

repeatedly

all

local laws

plug

hole

iintrl

all fuel

Then

SD~

k

dug

as

follows

IS

expelled out of

pull

the starter geMy

with

to

an

REASSEMBLY

Brush

Cutter

RBC2.52

1NSTRUCTlONS

and

String Trimmer

RBC253

j

Reassembling

The

shaft

and the engine on

assembled

(example,

shown be

1.

for

I

ow:

Loosen shaft Note:

Always inserr the drive shaft into the holder

i).

i

2.

case shaft resists

try

siqport

ii).

5~2

!:;:

gt1i

After

fully secure the drive shaft.

Connecting

1.

Insert the nipple square hole square hole

grip.

lever

Note:

that the throttle wire moves

2. Connect the

by

inserting one

3. Cover the throttle

tubing.

_-

Note:

It

is

easier connectors are partially pushed into the motor cover

the

drive

in

the factory.

shaft

If

you remove the shaft

this

and

the

machine

engine.

have been

maintenavce) carefully reassemble

the

screws

into

the holder case

fully

to

insert

washer

caiitio~is

;jinih;d

M5x18 and insert the drive

(Fig.

31).

(approx. 60mm; 2-3/8").

full

insertion

it

again while

on

not

to

of

the

slightly

the gear case.

allow

the

switch cords

If

the inner

drive shaft,

rotating the

between the holder case and the

end.

making

scire

that the drive shaft

is

installed

and properly. tighten the screws M5x18

the

wires

(String

of

in

the

in

the moving

The

nipple

should

is

squeezed

Squeeze the throttle lever

(Fig.

Trimmer

the throttle

grip

until

part

move

32).

wire

it

fits

when

only

through the

into an

which

the

to

make sure

RBC253)

inner

is

inside the

throttle

smoothly.

two

switch wires

into

the

wire

and

to

install

the

to

remove slack from the wires

other.

switch

split

to

the

wires

tubing

engine wires

with

if

the bullet

(Fig.

it

as

to

split

33).

~

I

I I

~

I

i-

1

.

Nipple

of

throttle

Hoidsr

case

wire

Fig

Fig.

31

32

14

Fig.

3:

INSTRUCTIONS

FOR

USE

OF

THE CUTTER

BLADE

safety

Read

1.

2

Check the blade before use

If

new

IMPORTANT:

The blade facility. Manual resharpening ed blade, which

the

CAUTION:

Always wear gloves when handling the cutter blade.

3.

Wear appropriate clothing and protectors Always

4.

replacing

Do

5.

machine. The blade

flying,

instructions

this

section carefully and thoroughly before use

you notice any damage to

blade.

must

only

be

will

cause vibrations

equipment. (Fig.

stop

the engine before inspecting

it.

not allow anyone

possibly harming bystanders.

35)

in

the area while operating the

might

(Fig

34)

it,

replace

it

with

a

resharpened by an authorized

will

result

in

an unbalanc-

and

damage to

the

blade

or

send stones or debris

Cracks

A

Be:.:

r

Fig

34

Never use the blade

6.

10.000RPM.

7.

Increase the cutter head speed to approx. 6.000RPM. Low speed (under cutting.

Installation

See page

Kickback (Fig.

When operating the

occur.

The

ing

risk

of injuries.

to

cut

within

Never

apply

2

o'clock.

Never

apply

bushes,

(1

trees, etc., having a diameter

118

in.).

with

its

speed

7.

(Mounting

4,000RPM)

causes inefficient

the

blade)

36)

brush

cutter, uncontrolled kickback

brush

cutter may be deflected

This

is

particularly the case

a blade segment between

the

brush

cutter

within

t-

the

brush

higher

12

than

with

great force, creat-

when

attempting

and

2

o'clock.

a segment between

cutter

to

solids,

in

excess of

3

cm

may

12

such

and

as

Fig.

36

15

Kickback Prevention

To

avoid kickbacks, observe the following:

Easy

cutting

in

a

blade segment between 8 and

with

almost

no

kickback

is

11

o'clock

possible

(Fig

with-

37)

Operation presents severe hazards, especially when

within

a blade segment between

12

and 2 o'clock

using

metal cutting

tools.

Cutting

o'clock, and between 2 and 5 o'clock,

by

own

CUTTING

Employ only the correct cutting

Nylon

Exclusively designed

edges, trees, posts, etc. (supplementing the

operations

train& and experienced operators, and then

risk.

within

a blade segment betweep

must

only

TOOLS

tool

Cutting

for the

Head:

for

cutting along walls. fences.

1ob.M

grass

11

and

be

performed

only

at

grass

mower).

their

12

I

Fig.

37

1

Star Blade:

\

For cutting thick materials, such as weeds shrubs,

this

circles from

underwood, thicket, etc (max 2 cm

cutting work

right

by

swinging

to

left (similar

the

brush

to

using a scythe)

high

grass, bushes,

or

314

cutter eveniy

in)

in

Perform

half-

Maintenance instructions

Before commencing work, check protective devices and also the shoulder strap Particular attention should be paid correctly sharpened

Turn

off

the engine and remove spark

replacing the cutter or cutting

Use

cutter,

or

sharpening cutting

the blade cover when you transport

to

prevent

injury

to

(Fig.

38)

tool.

and damage

the

caridition

cutting

tools,

and

to

of

the cutter,

blades which

plug

connector when

also

when cleaning

or

store the

the blade (Fig.39).

must

brush

be

I

Blade

cover

Fig.

38

i

~

16

INSTRUCTIONS

(BUMP

*

Safety Instructions

1

2

3

4

5

6

&

Read

Check the nylon cutting head carefully before each

If

you notice any of following, replace the worn

damaged parts

Dents appear on the knob head The housing (cover) The

disappeared

Wear appropriate clothing and protectors Always stop the engine before inspecting the

head

Do

not allow anyone near the operation area The

cutters

harming bystanders Never use the cutting head

head speed higher than

FOR

FEED

this

"Limit

or

replacing the nylon cord

might

BF4)

section carefully and thoroughly before use

with

marks (notches)"

send stones

USE

OF

THE

new ones immediately

is

damaged

or

debris

BF4

10,000

or

cracked

on

the cover have

flying,

on

tools

RPM

possibly

with

NYLON CUTTING

I

use

or

(Fig

40)

r-

cutting

a cutter

HEAD

(Model

1.

'===

WBC253)

__

Fig

-

40

i

installation

See page 5 (Mounting the

0

pera ti

on

1

Increase

RPM

the

cutter head speed

Low

speed (under inefficient cutting Use the (shaded area shown

cutting.

When

the

2

nylon cord wears down (becomes decrease the engine speed and tap the ground

r

the

knob

of

to

advance the nylon cord

Parts

Breakdown

nylon

cutting head)

to

in

4,000

Fig

approx

RPM)

tip

of the

41)

for more effective

causes

nylon

6

000

cord

short),

to

under

4,000

RPM

the nylon cutting head against

(Fig

42)

I

Fio.

.,

43

j

1

~___

r3

I

'

,

Fig

_-

Fig.

_.

41

42

17

Replacing

1.

2.

3.

4.

5.

the

nylon cord (Bump & Feed

Press

the

homing

then remove

Run

the

new

of

the

spool.

[he

notch into

end

of

the

cord

the

than Wind

direction

Wind

cord,

notch Mount

other

both

ends firmly around the spool in

of

the

all

but

leaving

on

the

spool in the housing

the

nylon

and

the

to

end (Fig.

head

about

the

side

and protrusions on the spool

the

housing.

6.

Unhook the ends

7.

position

the

Align with firmly

and feed

side

of

the

protrusions

the

slots

onto

the

housing (Fig.

of

the

housing

BF4)

latches

spool (Fig.

cord through the hole

pass

other

extend about

4"

ends temporarily hooked through

of

the

the eyelets. Then push

inward

44).

one end

side

45).

of

the

3"

rotation.(Fig.

(100

mm)

to

the

spool

(Fig.

so

are

the

cord

from their temporary

cords

out

through the eyelets

48).

on

the

underside

to

secure

to

lift

off

the cover;

in

the center

the

cord

through

spool.

(80

46).

6"

Allow

mm) further

the

(150

mm)

one

of

47).

that the grooves

aligned with

of

it

(Fig.

the

49).

those

cover

the

a

in

Fig

$4

1

3"

(80

-

1_1

mm)

I

Notch

I

i

I

E

1

i

1

Model

RBC253

wind

cord

direction

Fig.

in

46

I

4"

to

(100

6"

mm)

i

15G

LH

/

I

/'

Fig

mi;?!

Fig.

I

45

i

47

1

18

Fig.

48

,

~~~

Protri

Fig

49

Emmision

Control Warranty Statement

YOUR WARRANTY RIGHTS

The

California

on

your

garden equipment engines must be designed,

dards.

Makita

equipment engine

maintenance of your

Your emission control system includes

and

the catalytic converter Also included are the hoses and connectors and

Where a warrantable condition exists ment

at

MANUFACTURER'S WARRANTY

The

1995

sion-related

OWNER'S

Air

Resources Board

1995

and later utility and/or

U.S.A., Inc.

for

the periods

utility

no

cost

to

you

and

later utility and/or

par?

on your engine

WARRANTY

must

and/or la-wn

including

RESPONSIBILITIES:

arid

Makita

lawn

and

warrant

of

the emission control system on

time

listed below provided there has been

ana

parts

Makita

diagnosis

lawn

and

garden equipment engines are warranted

is

defective, the

U.S.A..

garden equipment engine.

built

and equipped

garden equipment engine.

such

as

the

U

S

A

,

Inc

parts

and labor

COVERAGE:

part

will

AND

Inc.

are

pleased

carburetor

will

repair your

be repaired

OBLIGATIONS

to

explain the emissiori

In

California.

to

meet the State's strqent anti-smog stan-

your

utility

no

or

fuel

injection

other

utility

and/or

or

replaced by

neit

and/or

abuse. neglect or i/71proppr

systems the

em/ssion-re/ale=l assemblies

iawr

for

two

Makita

zo!i:rcl

utility

arid

lawn

and

ignition

and

gaicleii equip-

years

U

S

A

warranty

lawn

garden

I+'

any

lnc

and

system

em/s-

As

the utility required maintenance /isfed covering maintenance

warranty

deny

and

lawn

and

garden equipment engine owner, you are responsible

in

your

owner's manual

on

your

utility

and/or

solely for the lack of receipts

tenance

As

the

utility and/or

U

S

A

,

lnc may deny you

has

failed

due

You

are responsible for presenting your utility and/or service center exceed

If

30

days.

you

have any questions regarding your warranty

FactoryService

is

provided below for your convenience.

lawn

and

garden equipment engine owner you should be aware however

warranty

to

abuse,

neglect

improper maintenance

as a problem exists.

Center

Manager nearest

coverage

The

warranty repairs should be completed in a reasonable time. not

lawn

and garden equipment engine,

or

for your failure

if

your

you.

A

list

for

the peiformance

Mak/ta

utility

lawn

rights

of

U

S

A

lnc

recommends

to

ensure the performance

but

that

Makita

oL

J'OLI

U

aii

S

and/or lawn and garden equipment engine or

or

unapproved

and

garden equipment

modifications

engine

to

a

Makita

and responsibilities, you should contact

the Factory Service Centel- locations and phone numbers

of

iehn

dI

A

I'Jc cannot

scheduled main-

that

Vakita

U.S.A.,

a

Makita

the

receipts

a

part

Inc.

to

19

LllMlTED WARRANTY

-

California Only

-

Makita

1995

U S A

and later

Inc a distributor of

utility

and/or lawn and garden equipment engines that the engine apa equipped at the time of manufacture Resources Board and

form

with

those regulations as applicable according

(2)

is

free

utility

from

and lawn and garden equipment

so

as

to

defects

conforrn

in

materials

to

with

the applicable iegulations

and

workmanship which may cause

the terms and conditions stated below

in

the

U

S

,

warrants

(1)

has been designed

of

the California

to

the owner

it

to

fail to

of

built

Ai,

cm-

WARRANTY PERIOD

The warranty period begins on the date which the

!o

the

original retail purchaser and ends Inc warrants in

material and workmanship that can cause the farlure

to

the original retail purchaser and each subsequent purchaser that the engine

WHAT

Repair and/or replacement work

is

performed at an authorized warranty station There

rxmed

IS

Any

tor

Any

\

oc of

at

an

authorized warranty station which leads

defective

warranted part which

regular inspection

warranted part which

time

up

to

the

first

of

any warranted emission-related part

is

not scheduled for replacement as required maintenance,

to

the effect

is

scheduled for replacement as required maintenance shall be warranted

scheduled replacement

two

IS

COVERED

of

"repair

replacement, and/or adjustment of the component parts listed below

utility

and'or lawn and garden equipment engine

years after that date

of

a warranted emission-related part

UNDER

will

to

the determination that a warranted emission-related Dart

or

replace as necessary" shall be warranted for the warranty peri3d

of

that part

During

this

two year period Makita

THIS WARRANTY

will

be performed at no charge provided ihe

also be

This

no

charge for any diagnostic labor per-

or

which

warranty shall apply only towards the

is

delivered

U

is

free from defect

IS

scheduled cnly

for

the

S

remlr

k

pw-

EMISSION-RELATED

1

Fuel Metering Systems (a) Carburetor and

(b)

Air

cleaner plate

Air

cleaner case

(c)

(d)

Air

cleaner element

Fuel

(e)

2.

Ignition Systems

filter

its

internal parts

PARTS

COVERED UNDER THIS WARRANTY

(a) Spark Plug

(b)

Flywheel Magneto

(c) Ignition Coil

3.

Other Miscellaneous Items Used

in

Above Systems

(a) Fuel Hoses

(b)

Sealing Gaskets

-

If

it

IS

determined

by

an

authorized warranty station that other

the failure of a warranted emission-related part

the

replace

necessary components

during

engine

components have been

the warranty period, Makita

U

S

A,

damaged

Inc

will

due

to

repair and/or

*.

WHAT

Tills

ivarrai?ty does not cover any emission-relatea part <>vITich

c;ns

and/or

V!hc?ii

an

of

;f.ji'S

,';*

!inle

s

limited warranty aiso does

-jL.e

!o

failure to follow the maintenance and operaring \ns;rlJctio:?'< q!ec;fiad

h.1

a

n

u

a

I

a)

lr7p;per

?)

Improper installaiion. adjustment. or repair performed

5)

Failure

.d)

Repairs and diagnosis performed outside

iise

modifications such as changing.

engine

is

being

warranty stations shall

si

inconvenience

i

n

c I u

d

i

n

g

:

or irradeqtiate maintenance

by

a

fac!ory authorized warrant$;

to

use recommended fbel as speciiiec

3i

parts

which are not authorized

IS

serviced

not

NOT

COVERED

adding.

under

warranty.

be liable for any

apply to

any

emi5siov

of

ar'y

rjf

of

by

P

M2.kii2

loss

v

!re

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WARRANTY

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or

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daniageci

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of

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~vhicli maifui:c:ions. tails.

in

0:Ilr:er's

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my

damage

the

i

995

ission-reiateu

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and iater

':w

dealers.

to

SQ'

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part

t3

ait~

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s

:.jii

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zngine

intervals specified performed.

c,?rino!

ITS)/

3)'

it??

f?i!Lire

r?ia!c?3

owner

is

in

These recorm should

deny

denied

to

part.

a claim

perform

As

if

the

a

mirilii;un1,

so13ly

described below which

PROCEDURE

Gneck all Cneck

Remove Clean Check Check Check the Replace Overhaul the engine Replace

nuts

air

passages

all

obsti uctloiis

the

air cleaner

the

spark plug Clean and adjust

the

muffler

fuel

lines

the

packings and gaskets

MAINTENANCE

res?onsible

tna

1995

fai1dr.e

thz

xheduled maintenai

are

ci!

131:s

exhaust port Clean

filter

for

having

and

later Owner- 5 liilani,ai

be

because there are

to

perform

:!le engine

all xhediiled

transferred

no

the

sch

owner

,?

based on the procediires described

I

id

tighten

ancl

engine cylinuer

as

liecessar\

If

clogged replace

5

f

:is

it

if

it

with

SCHEDULE

inspectlor)

and

to

zach

sGoseq.i-?rri

records of schedui3d maintenance; hoivever. a warrai:;,;]

deci

r:ia!ii;anaric~

mc inspection

rssyinsibie foi

a+

:

-1

,h3q

IC,

it

riecessar)

necessary

a new

fiIt9r

and

maintenance services perjrJiTnesi

r3:ain

records

avner

of

these services as

of

the

engine.

!-:owever, a warranty claim may

!esL:;iad

!!is

in

the Owner's Manual

in

the failure

oi

scheduled inspection

Every

8

hours

of

Every 8 hours of use

Every

50

hours

Every

50

hours of use or monthly

Every

200

hours of use or annually

Every

200

hours

Every

time

the

engine

ha>Jin

PAakita

U.S.4

by

a warranted emis=

and

maints;^lar-,-.

use

c;

daily

or

Gaily

of

use

si

rnoiith

of

use or annually

is

reassembled

2

de

,'

'1

REPAIR AND REPLACEMENT

It

IS

/

reccximericlerf

U.S

A.,

Inc.

oarts

These

~ti:~a~~J

thai

Sniy

?le

~~seii

:epi?ce;riarit

engirie replacement parts which have

in

the

parrs

performance

will

be

provided

Df

OF

ERillSSIQN-RELATED PARTS

any

warranty maintenance

at

no

charge

if

the

beer

par!

aLtiic;r!zer:

or

i,<~:~:s

is

Sill1

LIPI:~~

?r-ifJ

approwcl

of

emission-related

'.vcimnty

by

Makita

3

r'+'tf,?st

r:~~):'y

il,l?k!ta

Ser'xes

cel~v~

ior

HOW TO

AND WHERE TO GET WARRANTY

Factory Service Cc-rter Manager

are

io

be

performed

your

convenience

FILE

A

A WARRANTY

to

rJetern?i:ie

list

of

the

Factor]

Seruc~

1553

North

(916)

333

Littlefieid

S

San

CLAIM

Rose~iille

Hiynlands'

331-621

SERVICES

Francisc?

(4151 875-10132

:ii.:;

in;::?sr'?te

::?-:e:.

1

Av?

R3

C4

2;.

location where

lilctitions

Sk

E

95660

'?@%I

and

p!ione

the

ncim-

Makita RBC252, RBC253 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual