Makita RBC25A User Manual

String

Trimmer

Models:

INSTRUCTION MANUAL

RBC221

RBC251

RBC25A

Read

Model RBC221 RBC251

Dimensions

(L

x W x

Weight
Revolution

Gear ratio
Clutch
Drive Shaft Type
Engine:

NOTE:

(mm)

H)

(kg)

of

cutter head

Displacement (cc)
Power rating
Carburetor
Starting system
Ignition system
Spark Plug
Fuel tank
Fuel

@s)

(I)

STRING

NEVER INSTALL
COULD RESULT.

Specifications are subject

TRIMMERS

(rpm)

OR

rules

for operation and instructions carefully.

Splined steel shaft

21.7 24.5

1

.o

Mixed gas (Unleaded Gasoline: Genuine Makita Two-cycle Engine

,.

ARE

FOR

USE

WITH

USE ANY METAL CUTTER BLADE

to

change without notice.

NYLON

CUTTING

1,725~214~238

(67-29132" x 8-711 6" x 9-318")

4.1 (9.0

Ibs)

4,000 - 6,000

1311 9

Automatic centrifugal type

All

position diaphragm type

Recoil starter

Solid state ignition

NGK

BM7A or equivalent

0.5

(0.48

HEADS

OR

ONLY.

METALLIC CUTTING LINE. SERIOUS LACERATIONS

quarts)

4.3 (9.5

Flexible steel shaft

1.3

RBC25A

Ibs)

Oil

=

50 : 1)

Thank you very much

in recommending our MAKITA
knowledge and experience.

Please

order

STRING TRIMMERS
Always use the proper machine

read

and understand this booklet thoroughly

to

take advantage

for

purchasing your MAKITA STRING TRIMMER. We

STRING

of

its outstanding performance.

are

designed

are

proud

of

TRIMMER

for

trimming grass, weeds and low growth, non-wood ground cover.

for

the

job.

as

a

before

result

of

our extensive development and substantial

operating your MAKITA STRING TRIMMER in

and very confident

SAFETY RULES

Proper safety precautions must
DO NOT

use

to
and

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

EXPOSE

this machine unless they

are

trained in its operation.

Always wear safety goggles
that

could
worn.
from flying

Inspect

as

necessary

DO

NOT

injury

to

Keep the handles
Always use the proper handle and shoulder strap when cutting.

Do not smoke while mixing

Do

not mix fuel in an enclosed room

Always mix and store the fuel in

ordinances
Never remove the fuel tank cap while the engine
Never start

dangerous carbon monoxide.
Never attempt

make engine adjustments with the unit resting on

Do

not use the unit

Inspect the area
Also remove any objects that the unit may throw during cutting.

Keep children away. Onlookers

Never leave the machine unattended.

Do

no use this unit

Do not overreach. Keep proper footing and balance

ladder

Keep hands and feet
Do not

Do

not use the unit when you

Do

not use a damaged cutting head.

nylon cutting

for

changing

Do

not store in

furnaces,

YOURSELF

become caught in moving parts

Long hair should

debris

the

during operation.

entire machine for

before

US€

any attachment with this power head other than one recommended by MAKITA. Serious

the user

or

free

for

such usage.

or

run the engine inside a closed

to

make engine adjustments while the unit

to

or

any other unstable footing location.

use

this type

head.

accessories.

a

closed

etc.

Store

be

observed. Like

OR

OTHERS TO DANGER.

are

thoroughly responsible and have

for

eye protection. Dress appropriately; do not wear

be

tied

back.

loose

using the machine.

bystanders

of oil

or

and fuel.

fuel

if

it

is

damaged

be

cut

and remove

for

any

jobs

clear

of

the nylon cutting

of

machine

are

A

broken

in a locked, well ventilated

area

or

where

It

is

parts (nuts, bolts, screws, etc.) and any damage. Repair

damage

or

filling tank.

or

near open flames. Assure adequate ventilation.

a

properly marked container that

or

poorly adjusted. Never remove the machine's guard.

all

should

other

for

unbalanced nylon cutting

be

than

sweeping away debris.

tired

or

If

a

fuel

AND

all

power equipment

of

the unit.

recommended that legs and feet

to

the engine could result.

is

room

a

debris that could become entangled in the nylon cutting

kept at

those

for

head

under the influence

stone

or

any other

vapors can

area

PRECAUTIONS

this

unit must

Follow these general rules.

read

and understood the machine manual

Safe,

sturdy, nonskid footwear should always

is

approved by

running.

or

building. Fumes from the exhaust contain

is

running and strapped

flat,

clear

surface.

a

safe

distance from the work

which

it

is

intended

at

all

times.

while

the

unit

of

medication, drugs

obstacle

head

must never

reach

an open flame from

only.

as

Do

not run the unit while standing on

is

in

use.

is

hit, stop the engine and

be

handled carefully.

Do

not permit others

loose

clothing

be

covered to protect them

local

codes

to

the operator. Always

area,

at least

described in the manual.

or

alcohol.

be

used.

hot

Follow instructions

water heaters,

or

or

replace

and

50

check

jewelry

be

head.

feet.

a

the

-

.

2

23.

Use

only

replacement parts that are identical to original equipment parts when servicing the

from

parts are available
potential hazard,

24.

Clean the machine completely, especially
When refueling, be sure

25.

engine

is

running

injury

your dealer. The use

to

the

user and damage

to

stop the engine and confirm that

or hot. When gasoline

of

any other accessory or attachment may create a

to

the machine.

the

fuel tank cap,

spills,

be sure to completely wipe

its

surroundings, and

it

has cooled down. Never refuel when the

the

air cleaner.

it

away and properly dispose

those materials before starting the engine.
Stay clear of other workers or

26.

When approaching an operator of the machine, carefully call

27.

bystanders.

his

attention and confirm that the operator

stops the engine. Be careful not to startle or distract the operator causing an unsafe situation.

Never touch the nylon cutting head while the engine

28.

nylon cutting head, be sure

to

stop

the

engine and confirm that the nylon cutting head has stopped

is

running.

If

it

is

necessary

to

adjust the protector or

turning.

The

29.

30.

31.

engine should be turned off when the machine

Be careful not to

will

shorten the life

hit

the

nylon cutting head against stones, or the ground. Unreasonably rough operation

of

the machine as well as create an unsafe environment for you and those around you.

Pay attention to loosening and overheating of parts.
operation immediately and check the machine carefully.
qualified service facility. Never continue

In

32.

startup or

wire or the spark

For a while after the engine has stopped, the muffler

33.
materials

Pay special attention when operating

34.

If

35.

36.

37.

you

Be careful not to drop the machine or
Before proceeding to adjust

cap from the

Before storing the machine for a long time, drain all fuel from the fuel tank and carburetor, clean the

38.

slip

during

(dry

or fall

operation of the engine, never touch hot parts such as the muffler, the high-voltage

plug.

grass, etc.), combustible gasses or combustible

to

the

ground or into a hole, release the throttle lever immediately.

or

repair the machine, be sure

spark

plug.

to

operate a machine which may be malfunctioning.

in

the

rain

hit

it

against obstacles.

is

moved between work areas.

If

there

is

any abnormality

If

necessary, have the machine serviced

is

still

hot. Never place

liquids.

or

shortly after the rain as the ground may

to

stop

the

engine

of

the machine, stop

the

machine near flammable

and

detach the

parts, move the machine to a safe place, and confirm that the engine has cooled down.
Make periodic inspections to assure safe and efficient operation,

39.

your machine, please contact your nearest Makita Factory Service Center

Keep the machine well away from fire or sparks.

40.

Warning: The cutter area

41.

Don't try to tackle a

42.

big

is

dangerous while the machine

job

with

an undersized machine. Use

is

If

you need professional inspection

or

authorized dealer.

coasting to a stop.

this

machine only for

trimming;

mower for large areas.
Wear a

43.

44.

Wear hearing protection for extended periods
Keep

45.

Never operate

46.

dust

guards

mask

in

dusty

and protectors

this

machine while

work conditions.

in

place and

it

in

is

turned upside-down or when

of

use, and any time the noise

working order.

is

uncomfortable.

it

is

at an extreme angle.

unit:

these

be

slippery.

spark

use a lawn

by

plug

of

a

of

CAUTION! CAUTION! CAUTION!
WHEN MIXING GASOLINE WITH TWO-CYCLE ENGINE OIL, USE ONLY GASOLINE WHICH CONTAINS NO

OR

ETHANOL
ENGINE FUEL LINES AND OTHER ENGINE PARTS.

METHANOL (TYPES

OF

ALCOHOL), THIS

SAVE THESE INSTRUCTIONS.

WILL

HELP TO AVOID POSSIBLE DAMAGE

TO

3

EQUIPMENT DESCRIPTION

4

ASSEMBLY

INSTRUCTIONS

Mounting the handle

1.

Attach the handle

2.

Install the handle joint
Fig.

1.

3.

Insert the installation bolt M6x45 through the
holes

in

the handle,

4.

Adjust the handle to the

(Fig.

1)

to

the drive

on

and

shaft.

the handle

attach the flange nut

desired

as

position and

tighten the installation bolt.

Mounting the protector

1.

Install the clamp on the drive shaft
projection
opening between the

of

the clamp

(Fig.

2)

is

inserted into the

gear

case

and

so

that the

the

shaft.

2. Attach the protector with two installation bolts
M6x20.

shown

M6.

drive

in

I

I

Installation bolt

Gear case

I

Protector

M6x45

Installation bolt

\

M6x20

Fig.

Fig.

1

2

Mounting the nylon cutting head

1.

Turn the machine upside down

so

that

easily install the nylon cutting head.

2.

Insert the hex wrench through the hole in the
gear

case,

and turn the support washer until it

locked

with the hex wrench

(or

the

shaft

locked).

3.

Using the socket wrench, remove the left-handed
nut (by turning it clockwise).
tightening washer (Fig.

4.

Screw the nylon cutting head onto the shaft
(Fig.

4).

3).

Also

remove the

IMPORTANT!
READ THE INSTRUCTIONS FOR

NYLON CUTTING HEAD (PAGE

USE

11)

BEFORE

OPERATING THIS MACHINE.

you

is

OF

can

is

THE

Tightening

Nut

Hex

washer

wrench

77

Fig.

3

Fig.

4

5

f