Makita 9020L User manual

INSTRUCTION MANUAL

load speed

(RPM)

6,000

DOUBLE

INSULATION

Overall length

Net

weight Spindle thread

5/8-11

UNC

4.7

(10.4

lbsl

462

(18-3/16")

IMPORTANT

SAFETY INSTRUCTIONS

(For

All

Tools)

WARNING:

WHEN USINGELECTRIC

TOOLS,

BASICSAFETY

PRECAUTIONSSHOULD ALWAYS BE FOLLOWED

REDUCE

THE

RISK OF FIRE, ELECTRIC SHOCK, AND PERSONAL

INJURY, INCLUDING THE FOLLOWING:

READ ALL

INSTRUCTIONS.

10.

11.

12.

13.

KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.

CONSIDER WORK AREA ENVIRONMENT. Don't use power tools

damp

wet locations. Keep work area well

lit.

Don't expose powertoolstorain.

Don't use tool

presence of flammable liquids or gases.

KEEP CHILDREN AWAY. All visitors should be kept away from work area.

Don't let visitors contact tool

extension cord.

STORE IDLETOOLS. Whennot

use, tools shouldbestored

dry, and

high

locked-upplace

out of reach of children.

DON'T FORCETOOL.

willdothejob betterandsaferattheratefor which

was intended.

USE RIGHT TOOL. Don't force small tool

attachment to do thejob of a

heavy-duty tool. Don't use tool for purpose not intended.

DRESSPROPERLY. Don't wear

loose

clothingorjewelry. Theycanbecaught

moving parts. Rubber gloves and non-skid footwear are recommended

when working outdoors. Wear protective haircoveringtocontain long hair.

USE SAFETY GLASSES. Also useface

dust mask

cutting operation is

dusty.

DON'T ABUSE CORD. Nevercarrytoolbycord

yank

todisconnectfrom

receptacle. Keep cord from heat, oil, and sharp edges.

SECURE WORK. Use clamps or a vise to hold work. It's safer than using

your hand and

frees both hands to operate tool.

DON'T OVERREACH. Keep proper footing and balance at all times.

MAINTAINTOOLS WITH CARE. Keep tools sharp and cleanfor better and

safer performance. Followinstructionsfor lubricating andchangingacces-

sories. Inspecttoolcordsperiodicallyandifdamaged, have repairedbyautho-

rized service facility. Inspect extension cords periodically and replace

damaged. Keep handles dry, clean, and free from oil and grease.

DISCONNECTTOOLS. Whennot

use, beforeservicing, andwhen chang-

ing accessories, such as blades, bits, cutters.

14.

REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to

see that keysand adjustingwrenches are removedfromtoolbeforeturning

on.

15.

AVOID UNINTENTIONAL STARTING. Don't carrytool withfinger onswitch.

Be sure switch is OFF when plugging

in.

16.

EXTENSION CORDS. Make sure your extension cord is

good condition.

When using an extension cord, be sure to use one heavy enoughto carry

the current your product will draw. An undersized cord will cause a drop

line

voltageresulting

loss

of powerand overheating.Table

showsthe

correct sizetousedependingoncord lengthand nameplateampere rating.

doubt, use the next heavier gage. The smaller the gage number,

the

heavier the cord.

TABLE

MINIMUM

GAGE

FOR

CORD

SETS

Total Length

of Cord

in Feet

18 16

16 16 14 12

12 Not Recommended

100

101

150

Ampere Rating

Not

MOW

Than Than AWG

17.

OUTDOOR USE EXTENSIONCORDS. Whentoolisusedoutdoors, useonly

extension cords intended for use outdoors and

marked.

18.

STAY ALERT, Watchwhat youaredoing, usecommon sense. Don't operate

tool when you are tired.

19.

CHECK DAMAGED PARTS. Beforefurther use of the tool, a guard or other

part that isdamaged should be carefully checked to determinethat

will

operateproperlyand perform itsintendedfunction. Check for alignmentof

moving parts, binding of moving parts, breakage of parts, mounting, and

any other conditions that may affect its operation. A guard

other part

that isdamaged should be properly repaired or replacedby an authorized

service center unless otherwise indicated elsewhere

this instruction

manual. Havedefectiveswitchesreplaced

authorizedservicecenter. Don't

use tool if switch does not turn

on and off.

20.

GUARD

AGAINST

ELECTRICSHOCK. Prevent

body

contact

with

grounded

surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.

21.

REPLACEMENTPARTS. Whenservicing, useonly identicalreplacementparts.

22.

POLARIZEDPLUGS. To reducethe riskof electric shock, thisequipmenthas

a polarizedplug (one blade is wider than the other). This plug will

fit

polarizedoutlet only one way. If the plug does not fit fully

the outlet,

reversetheplug. If

stilldoesnot

fit,

contact aqualifiedelectriciantoinstall

the proper outlet. Do not change the plug

any way.

VOLTAGE WARNING: Beforeconnecting the tooltoa powersource (receptacle.

outlet, etc.) be sure the voltage supplied is the same as that specified on the

nameplateof the tool. A power source withvoltage greater than that specified

for the toolcan result

SERIOUS INJURY tothe user

as well as damageto

the tool. If

doubt,

DO NOT

PLUG INTHE TOOL. Using a power source with

voltage

less

than the nameplate rating is harmful to the motor.

ADDITIONAL SAFETY RULES FOR SANDER

Check the backing pad carefully for cracks, damage or deformity before

Hold the tool firmly.

Keep hands away from rotating parts.

Make sure abrasive disc is not contacting the workpiece before the switch

not leave the tool running. Operate the tool only when hand-held.

nottouchtheworkpieceimmediatelyafter operation;

maybeextremely

operation. Replace cracked, damaged or deformed pad immediately.

is turned on.

hot and could burn your skin.

ADDITIONAL SAFETY RULES FOR GRINDER

Keep guards

place.

Use only wheels havingamaximumoperatingspeedat leastas highas

"No

LoadRPM" markedonthe tool's nameplate.When usingdepressedcenter

wheels, be sure to use only fiberglass-reinforcedwheels.

Check the wheel carefully for cracks or damage beforeoperation. Replace

cracked or damaged wheel immediately.

Use only flanges specified for this tool.

Be careful not to damage the spindle, the flange (especiallythe installing

surface) or the lock nut. Damage to these parts could result

wheel

breakage.

Hold the tool firmly.

Keep hands away from rotating parts.

Make sure

the

wheel is not contacting

the

workpiece before the switch is

turned on.

Before usingthe tool on an actual workpiece, let

run for a while. Watch

for vibration or wobbling that could indicate poor installation or a poorly

balanced wheel.

10.

Use the specified surface of the wheel to perform the grinding.

11.

Watch out for flying sparks. Holdthe tool

that sparksfly away from you

12.

not leave

the

tool running. Operate the tool only when hand-held.

13.

nottouch

the

workpieceimmediatelyafter operation;

may beextremely

and other persons or flammable materials.

hot and could burn your skin.

SAVE

THESE

INSTRUCTIONS.

Installing side grip (auxiliary handle)

Always installthe side grip on the machine

securely before operation. The side grip can

be installed in any of three positionson the

sides of the machine, whichever is con-

venient and keeps the guard properly posi-

tioned. Always hold the machine's switch

handle and the side grip firmly with both

hands during operation.

Switch handle mounting positions

The switch handle can be rotatedto either

90°

left or right to fit your work needs. To

changethe position, first unplugthe machine

from the power source. Remove only the

screw which secures the middle of the

switch handle Rotate the switch handle to

the desired angle

(90°

left or right). Insert

the screw intothe hole inthe middleof the

switch handle. Make sure that the switch

handleis securedand thentightenthe screw

firmly.

Side

grip

Screw

WARNING:

Positionswitch handle mountingangle and side grip only insuch a way that grinding wheel

will not contact any part of your body and that wheel guard always remains positioned

barrier betweenthe grinding wheel and the operator. Failure to do

may result in

serious injury.

CAUTION:

Never mountthe switch handle

any other angles than

(originalmountingangle),

90°

left of right. Repositionthe side grip if necessary to assure firm and proper control of the

machine.

Installing

removing abrasive

disc

CAUTION:

Always be sure that the tool is switched off and unplugged before installing or removing

the disc.

NOTE:

Use

sander accessories specified

this manual. These must be purchased by separate.

To tighten the lock

nut,

pressthe shaft lock

firmly

that the spindle cannot revolve,

then use the lock nut wrench and securely

tighten clockwise.

Mount the rubber pad onto the spindle.

Fit

the disc

over the rubber pad and screw

the lock nut onto the spindle.

Lock nut wrench

Lock

nut

To remove the disc, follow the installation procedure in reverse.

USED

GRINDER

NOTE:

Usegrinder accessoriesspecifiedinthis manual.These must be purchasedseparately.

WARNING:

Always use guard assembly or accessory kit, noted below, for type 27 depressed center

wheel.

Guard assembly

Part

No.

192413-0

...

For 180

(7")

Part No. 192414-8

...

For 230 mm

19")

Installing

wheel

guard

When usingadepressedcenter wheel, always

use a wheel guard. Mount the wheel guard

withthe tab on the wheel guard band aligned

withthe notchonthe bearingbox.Thenrotate

the wheel guard

160

degrees counter-

clockwise. Be sure to tighten the screw

securely.

Wheel

guard

screw

Notch

Installing

removing depressed center

wheel

CAUTION:

Always be surethat the machine is switched

off and unpluggedbeforeinstallingor remov-

ing the wheel.

Mountthe inner flange onto the spindle. Fit

the wheel

over theinnerflangeandscrew

the lock nut onto the spindle.

Use only lock nut part no.

192568-1,

equipped with tool.

Install locknut

shown, with locknut

wrench holes facing out.

tightenthelock nut, pressthe shaft lock

firmly

that the spindle cannot revolve,

then use the lock nut wrench and securely

tighten clockwise.

To removethe wheel, follow the installation

procedure in reverse.

Lock

nut

Depressed

center whee

Lock nut wrench

>/-

Shaft

lock

Switch action

To start the tool, simply pull the trigger.

Release the trigger to stop. For continuous

operation, pull the trigger and then push

the lock lever. To stop the tool form the

locked position, pull the trigger fully, then

release

it.

Lock

lever

CAUTION:

Before plugging

the tool, always check tosee that the switchtrigger actuates properly

and returns tothe "OFF" position when released.

Operation

Hold the tool firmly. Turn the tool on and

then apply the wheel or disc to the work-

piece.

general, keep the edge of the wheel or

disc at an angle of about

15O

tothe work-

piece surface.

Duringthe break-inperiodwitha new wheel,

do notwork thegrinder

the Bdirection or

will cut intothe workpiece. Oncethe edge

of the wheel has been rounded off by use,

the wheel may be worked

both A and B

directions.

WARNING:

should never be necessary to force the tool. The weight of the tool applies adequate

pressure. Forcing and excessive pressure could cause dangerous wheel breakage.

Continued use of a worn-out wheel may result

wheel explosion and serious personal

injury. Depressed center wheel should not be used after

has been worn down to

(4-1

12")

diameter. Use of the wheel after this point is unsafe and

should

be removed from service and rendered unusable by intentional destruction.

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