Makita GA7070 ユーザーマニュアル

ブランド: Makita

モデル: GA7070

カテゴリー: パワーツール

タイプ: ユーザーマニュアル

GA7070

GA7071

GA9070

GA9071

EN Angle Grinder INSTRUCTION MANUAL 8

ZHCN 角向磨光机使用说明书 19

ID Gerinda Sudut PETUNJUK PENGGUNAAN 30

MS Pengisar Sudut MANUAL ARAHAN 42

VI Máy Mài Góc Cầm Tay Hoạt

Động Bằng Động Cơ Điện TÀI LIỆU HƯỚNG DẪN 54

TH   65

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ø45

ø78

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17 21

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8ENGLISH

ENGLISH (Original instructions)

SPECIFICATIONS

Model: GA7070 GA7071 GA9070 GA9071

Wheel diameter 180mm 230mm

Max. wheel thickness 7.2mm 6.5mm

Spindle thread M14 or 5/8" (country specic)

Rated speed (n) 8,500min-1 6,600min-1

Overall length 506mm

Switch handle Bar type D type Bar type D type

Net weight 6.1 - 6.6 kg 6.2 - 6.7 kg 6.3 - 8.5 kg 6.4 - 8.5 kg

Safety class /II

• Due to our continuing program of research and development, the specications herein are subject to change

without notice.

• Specications may dier from country to country.

• The weight may dier depending on the attachment(s). The lightest and heaviest combination, according to

EPTA-Procedure 01/2014, are shown in the table.

Symbols

The followings show the symbols which may be used

for the equipment. Be sure that you understand their

meaning before use.

Read instruction manual.

Wear safety glasses.

DOUBLE INSULATION

Only for EU countries

Due to the presence of hazardous compo-

nents in the equipment, used electrical and

electronic equipment may have a negative

impact on the environment and human

health.

Do not dispose of electrical and electronic

appliances with household waste!

In accordance with the European Directive

on waste electrical and electronic equip-

ment and its adaptation to national law,

used electrical and electronic equipment

should be collected separately and

delivered to a separate collection point

for municipal waste, operating in accor-

dance with the environmental protection

regulations.

This is indicated by the symbol of the

crossed-out wheeled bin placed on the

equipment.

Intended use

The tool is intended for grinding, sanding and cutting of

metal and stone materials without the use of water.

Power supply

The tool should be connected only to a power supply of

the same voltage as indicated on the nameplate, and

can only be operated on single-phase AC supply. They

are double-insulated and can, therefore, also be used

from sockets without earth wire.

SAFETY WARNINGS

General power tool safety warnings

WARNING: Read all safety warnings, instruc-

tions, illustrations and specications provided

with this power tool. Failure to follow all instructions

listed below may result in electric shock, re and/or

serious injury.

Save all warnings and instruc-

tions for future reference.

The term “power tool” in the warnings refers to your

mains-operated (corded) power tool or battery-operated

(cordless) power tool.

Work area safety

1. Keep work area clean and well lit. Cluttered or

dark areas invite accidents.

2. Do not operate power tools in explosive atmo-

spheres, such as in the presence of ammable

liquids, gases or dust. Power tools create sparks

which may ignite the dust or fumes.

3. Keep children and bystanders away while

operating a power tool. Distractions can cause

you to lose control.

9ENGLISH

Electrical safety

1. Power tool plugs must match the outlet. Never

modify the plug in any way. Do not use any

adapter plugs with earthed (grounded) power

tools. Unmodied plugs and matching outlets will

reduce risk of electric shock.

2. Avoid body contact with earthed or grounded

surfaces, such as pipes, radiators, ranges and

refrigerators. There is an increased risk of elec-

tric shock if your body is earthed or grounded.

3. Do not expose power tools to rain or wet con-

ditions. Water entering a power tool will increase

the risk of electric shock.

4. Do not abuse the cord. Never use the cord for

carrying, pulling or unplugging the power tool.

Keep cord away from heat, oil, sharp edges

or moving parts. Damaged or entangled cords

increase the risk of electric shock.

5. When operating a power tool outdoors, use an

extension cord suitable for outdoor use. Use of

a cord suitable for outdoor use reduces the risk of

electric shock.

6. If operating a power tool in a damp location

is unavoidable, use a residual current device

(RCD) protected supply. Use of an RCD reduces

the risk of electric shock.

7. Use of power supply via an RCD with a rated

residual current of 30 mA or less is always

recommended.

8. Power tools can produce electromagnetic

elds (EMF) that are not harmful to the user.

However, users of pacemakers and other similar

medical devices should contact the maker of their

device and/or doctor for advice before operating

this power tool.

9. Do not touch the power plug with wet hands.

10. If the cord is damaged, have it replaced by the

manufacturer or his agent in order to avoid a

safety hazard.

Personal safety

1. Stay alert, watch what you are doing and use

common sense when operating a power tool.

Do not use a power tool while you are tired or

under the inuence of drugs, alcohol or med-

ication. A moment of inattention while operating

power tools may result in serious personal injury.

2. Use personal protective equipment. Always

wear eye protection. Protective equipment such

as a dust mask, non-skid safety shoes, hard hat or

hearing protection used for appropriate conditions

will reduce personal injuries.

3. Prevent unintentional starting. Ensure the

switch is in the o-position before connecting

to power source and/or battery pack, picking

up or carrying the tool. Carrying power tools with

your nger on the switch or energising power tools

that have the switch on invites accidents.

4. Remove any adjusting key or wrench before

turning the power tool on. A wrench or a key left

attached to a rotating part of the power tool may

result in personal injury.

5. Do not overreach. Keep proper footing and

balance at all times. This enables better control

of the power tool in unexpected situations.

6. Dress properly. Do not wear loose clothing or

jewellery. Keep your hair and clothing away

from moving parts. Loose clothes, jewellery or

long hair can be caught in moving parts.

7. If devices are provided for the connection of

dust extraction and collection facilities, ensure

these are connected and properly used. Use of

dust collection can reduce dust-related hazards.

8. Do not let familiarity gained from frequent use

of tools allow you to become complacent and

ignore tool safety principles. A careless action

can cause severe injury within a fraction of a

second.

9. Always wear protective goggles to protect

your eyes from injury when using power tools.

The goggles must comply with ANSI Z87.1 in

the USA, EN 166 in Europe, or AS/NZS 1336

in Australia/New Zealand. In Australia/New

Zealand, it is legally required to wear a face

shield to protect your face, too.

It is an employer's responsibility to enforce

the use of appropriate safety protective equip-

ments by the tool operators and by other per-

sons in the immediate working area.

Power tool use and care

1. Do not force the power tool. Use the correct

power tool for your application. The correct

power tool will do the job better and safer at the

rate for which it was designed.

2. Do not use the power tool if the switch does

not turn it on and o. Any power tool that cannot

be controlled with the switch is dangerous and

must be repaired.

3. Disconnect the plug from the power source

and/or remove the battery pack, if detachable,

from the power tool before making any adjust-

ments, changing accessories, or storing power

tools. Such preventive safety measures reduce

the risk of starting the power tool accidentally.

4. Store idle power tools out of the reach of chil-

dren and do not allow persons unfamiliar with

the power tool or these instructions to operate

the power tool. Power tools are dangerous in the

hands of untrained users.

5. Maintain power tools and accessories. Check

for misalignment or binding of moving parts,

breakage of parts and any other condition that

may aect the power tool’s operation. If dam-

aged, have the power tool repaired before use.

Many accidents are caused by poorly maintained

power tools.

10 ENGLISH

6. Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting edges

are less likely to bind and are easier to control.

7. Use the power tool, accessories and tool bits

etc. in accordance with these instructions, tak-

ing into account the working conditions and

the work to be performed. Use of the power tool

for operations dierent from those intended could

result in a hazardous situation.

8. Keep handles and grasping surfaces dry,

clean and free from oil and grease. Slippery

handles and grasping surfaces do not allow for

safe handling and control of the tool in unexpected

situations.

9. When using the tool, do not wear cloth work

gloves which may be entangled. The entangle-

ment of cloth work gloves in the moving parts may

result in personal injury.

Service

1. Have your power tool serviced by a qualied

repair person using only identical replacement

parts. This will ensure that the safety of the power

tool is maintained.

2. Follow instruction for lubricating and chang-

ing accessories.

Grinder safety warnings

Safety Warnings Common for Grinding, Sanding,

Wire Brushing, or Abrasive Cutting-O Operations:

1. This power tool is intended to function as a

grinder, sander, wire brush or cut-o tool.

Read all safety warnings, instructions, illus-

trations and specications provided with this

power tool. Failure to follow all instructions listed

below may result in electric shock, re and/or

serious injury.

2. Operations such as polishing are not rec-

ommended to be performed with this power

tool. Operations for which the power tool was not

designed may create a hazard and cause per-

sonal injury.

3. Do not use accessories which are not speci-

cally designed and recommended by the tool

manufacturer. Just because the accessory can

be attached to your power tool, it does not assure

safe operation.

4. The rated speed of the accessory must be at

least equal to the maximum speed marked on

the power tool. Accessories running faster than

their rated speed can break and y apart.

5. The outside diameter and the thickness of your

accessory must be within the capacity rating

of your power tool. Incorrectly sized accessories

cannot be adequately guarded or controlled.

6. Threaded mounting of accessories must

match the grinder spindle thread. For acces-

sories mounted by anges, the arbour hole of

the accessory must t the locating diameter

of the ange. Accessories that do not match the

mounting hardware of the power tool will run out of

balance, vibrate excessively and may cause loss

of control.

7. Do not use a damaged accessory. Before each

use inspect the accessory such as abrasive

wheels for chips and cracks, backing pad for

cracks, tear or excess wear, wire brush for

loose or cracked wires. If power tool or acces-

sory is dropped, inspect for damage or install

an undamaged accessory. After inspecting and

installing an accessory, position yourself and

bystanders away from the plane of the rotating

accessory and run the power tool at maximum

no-load speed for one minute. Damaged acces-

sories will normally break apart during this test

time.

8. Wear personal protective equipment.

Depending on application, use face shield,

safety goggles or safety glasses. As appro-

priate, wear dust mask, hearing protectors,

gloves and workshop apron capable of stop-

ping small abrasive or workpiece fragments.

The eye protection must be capable of stopping

ying debris generated by various operations.

The dust mask or respirator must be capable of

ltrating particles generated by your operation.

Prolonged exposure to high intensity noise may

cause hearing loss.

9. Keep bystanders a safe distance away from

work area. Anyone entering the work area

must wear personal protective equipment.

Fragments of workpiece or of a broken accessory

may y away and cause injury beyond immediate

area of operation.

10. Hold the power tool by insulated gripping

surfaces only, when performing an operation

where the cutting accessory may contact hid-

den wiring or its own cord. Cutting accessory

contacting a “live” wire may make exposed metal

parts of the power tool “live” and could give the

operator an electric shock.

11. Position the cord clear of the spinning acces-

sory. If you lose control, the cord may be cut or

snagged and your hand or arm may be pulled into

the spinning accessory.

12. Never lay the power tool down until the acces-

sory has come to a complete stop. The spinning

accessory may grab the surface and pull the

power tool out of your control.

13. Do not run the power tool while carrying it at

your side. Accidental contact with the spinning

accessory could snag your clothing, pulling the

accessory into your body.

14. Regularly clean the power tool’s air vents. The

motor’s fan will draw the dust inside the housing

and excessive accumulation of powdered metal

may cause electrical hazards.

15. Do not operate the power tool near ammable

materials. Sparks could ignite these materials.

16. Do not use accessories that require liquid

coolants. Using water or other liquid coolants

may result in electrocution or shock.

11 ENGLISH

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged

rotating wheel, backing pad, brush or any other acces-

sory. Pinching or snagging causes rapid stalling of the

rotating accessory which in turn causes the uncon-

trolled power tool to be forced in the direction opposite

of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or

pinched by the workpiece, the edge of the wheel that is

entering into the pinch point can dig into the surface of

the material causing the wheel to climb out or kick out.

The wheel may either jump toward or away from the

operator, depending on direction of the wheel’s move-

ment at the point of pinching. Abrasive wheels may also

break under these conditions.

Kickback is the result of power tool misuse and/or

incorrect operating procedures or conditions and can be

avoided by taking proper precautions as given below.

1. Maintain a rm grip on the power tool and

position your body and arm to allow you to

resist kickback forces. Always use auxiliary

handle, if provided, for maximum control over

kickback or torque reaction during start-up.

The operator can control torque reactions or kick-

back forces, if proper precautions are taken.

2. Never place your hand near the rotating acces-

sory. Accessory may kickback over your hand.

3. Do not position your body in the area where

power tool will move if kickback occurs.

Kickback will propel the tool in direction opposite

to the wheel’s movement at the point of snagging.

4. Use special care when working corners, sharp

edges etc. Avoid bouncing and snagging the

accessory. Corners, sharp edges or bouncing

have a tendency to snag the rotating accessory

and cause loss of control or kickback.

5. Do not attach a saw chain woodcarving blade

or toothed saw blade. Such blades create fre-

quent kickback and loss of control.

Safety Warnings Specic for Grinding and Abrasive

Cutting-O Operations:

1. Use only wheel types that are recommended

for your power tool and the specic guard

designed for the selected wheel. Wheels for

which the power tool was not designed cannot be

adequately guarded and are unsafe.

2. The grinding surface of centre depressed

wheels must be mounted below the plane of

the guard lip. An improperly mounted wheel that

projects through the plane of the guard lip cannot

be adequately protected.

3. The guard must be securely attached to the

power tool and positioned for maximum safety,

so the least amount of wheel is exposed

towards the operator. The guard helps to protect

the operator from broken wheel fragments, acci-

dental contact with wheel and sparks that could

ignite clothing.

4. Wheels must be used only for recommended

applications. For example: do not grind with

the side of cut-o wheel. Abrasive cut-o wheels

are intended for peripheral grinding, side forces

applied to these wheels may cause them to

shatter.

5. Always use undamaged wheel anges that are

of correct size and shape for your selected

wheel. Proper wheel anges support the wheel

thus reducing the possibility of wheel breakage.

Flanges for cut-o wheels may be dierent from

grinding wheel anges.

6. Do not use worn down wheels from larger

power tools. Wheel intended for larger power tool

is not suitable for the higher speed of a smaller

tool and may burst.

Additional Safety Warnings Specic for Abrasive

Cutting-O Operations:

1. Do not “jam“ the cut-o wheel or apply exces-

sive pressure. Do not attempt to make an

excessive depth of cut. Overstressing the wheel

increases the loading and susceptibility to twisting

or binding of the wheel in the cut and the possibil-

ity of kickback or wheel breakage.

2. Do not position your body in line with and

behind the rotating wheel. When the wheel, at

the point of operation, is moving away from your

body, the possible kickback may propel the spin-

ning wheel and the power tool directly at you.

3. When wheel is binding or when interrupting

a cut for any reason, switch o the power

tool and hold the power tool motionless until

the wheel comes to a complete stop. Never

attempt to remove the cut-o wheel from the

cut while the wheel is in motion otherwise

kickback may occur. Investigate and take correc-

tive action to eliminate the cause of wheel binding.

4. Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed and

carefully re-enter the cut. The wheel may bind,

walk up or kickback if the power tool is restarted in

the workpiece.

5. Support panels or any oversized workpiece to

minimize the risk of wheel pinching and kick-

back. Large workpieces tend to sag under their

own weight. Supports must be placed under the

workpiece near the line of cut and near the edge

of the workpiece on both sides of the wheel.

6. Use extra caution when making a “pocket cut”

into existing walls or other blind areas. The

protruding wheel may cut gas or water pipes, elec-

trical wiring or objects that can cause kickback.

Safety Warnings Specic for Sanding Operations:

1. Do not use excessively oversized sanding

disc paper. Follow manufacturers recommen-

dations, when selecting sanding paper. Larger

sanding paper extending beyond the sanding

pad presents a laceration hazard and may cause

snagging, tearing of the disc or kickback.

Safety Warnings Specic for Wire Brushing

Operations:

1. Be aware that wire bristles are thrown by the

brush even during ordinary operation. Do not

overstress the wires by applying excessive

load to the brush. The wire bristles can easily

penetrate light clothing and/or skin.

12 ENGLISH

2. If the use of a guard is recommended for wire

brushing, do not allow any interference of the

wire wheel or brush with the guard. Wire wheel

or brush may expand in diameter due to work load

and centrifugal forces.

Additional Safety Warnings:

1. When using depressed centre grinding wheels,

be sure to use only berglass-reinforced

wheels.

2. NEVER USE Stone Cup type wheels with this

grinder. This grinder is not designed for these

types of wheels and the use of such a product

may result in serious personal injury.

3. Be careful not to damage the spindle, the

ange (especially the installing surface) or the

lock nut. Damage to these parts could result in

wheel breakage.

4. Make sure the wheel is not contacting the

workpiece before the switch is turned on.

5. Before using the tool on an actual workpiece,

let it run for a while. Watch for vibration or

wobbling that could indicate poor installation

or a poorly balanced wheel.

6. Use the specied surface of the wheel to per-

form the grinding.

7. Do not leave the tool running. Operate the tool

only when hand-held.

8. Do not touch the workpiece immediately after

operation; it may be extremely hot and could

burn your skin.

9. Do not touch accessories immediately after

operation; it may be extremely hot and could

burn your skin.

10. Observe the instructions of the manufacturer

for correct mounting and use of wheels.

Handle and store wheels with care.

11. Do not use separate reducing bushings or

adaptors to adapt large hole abrasive wheels.

12. Use only anges specied for this tool.

13. For tools intended to be tted with threaded

hole wheel, ensure that the thread in the wheel

is long enough to accept the spindle length.

14. Check that the workpiece is properly

supported.

15. Pay attention that the wheel continues to

rotate after the tool is switched o.

16. If working place is extremely hot and humid,

or badly polluted by conductive dust, use a

short-circuit breaker (30 mA) to assure opera-

tor safety.

17. Do not use the tool on any materials contain-

ing asbestos.

18. When use cut-o wheel, always work with

the dust collecting wheel guard required by

domestic regulation.

19. Cutting discs must not be subjected to any

lateral pressure.

20. Do not use cloth work gloves during operation.

Fibers from cloth gloves may enter the tool, which

causes tool breakage.

21. Make sure there are no electrical cables, water

pipes, gas pipes etc. that could cause a hazard

if damaged by use of the tool.

SAVE THESE INSTRUCTIONS.

WARNING: DO NOT let comfort or familiarity

with product (gained from repeated use) replace

strict adherence to safety rules for the subject

product. MISUSE or failure to follow the safety

rules stated in this instruction manual may cause

serious personal injury.

FUNCTIONAL

DESCRIPTION

CAUTION: Always be sure that the tool is

switched o and unplugged before adjusting or

checking function on the tool.

CAUTION: Return the switch trigger to the

“OFF” position in case of accidental unplugging,

blackout, or the power is cut unintentionally.

Otherwise the tool may start suddenly when the

power returns and it may result in personal injury.

Shaft lock

Press the shaft lock to prevent spindle rotation when

installing or removing accessories.

► Fig.1: 1. Shaft lock

NOTICE: Never actuate the shaft lock when the

spindle is moving. The tool may be damaged.

Switch handle mounting positions

CAUTION: Always make sure that the switch

handle is locked in the desired position before

operation.

The switch handle can be rotated to either 90° left or

right to t your work needs. First, unplug the tool. Press

the lock button and rotate the switch handle to left

or right fully. The switch handle will be locked in that

position.

GA7070, GA9070

► Fig.2: 1. Motor housing 2. Lock button 3. Handle

GA7071, GA9071

► Fig.3: 1. Motor housing 2. Lock button 3. Handle

Switch action

CAUTION: Before plugging in the tool, always

check to see that the switch trigger actuates

properly and returns to the “OFF” position when

released.

There are three patterns of the switch action depending

on country.

GA7070, GA9070

► Fig.4: 1. Switch trigger 2. Lock lever

13 ENGLISH

GA7071, GA9071

► Fig.5: 1. Switch trigger 2. Lock lever

For tool with the lock-on switch

Country specic

CAUTION: Switch can be locked in “ON” posi-

tion for ease of operator comfort during extended

use. Apply caution when locking tool in “ON”

position and maintain rm grasp on tool.

To start the tool, simply pull the switch trigger (in the B

direction). Release the switch trigger to stop.

For continuous operation, pull the switch trigger (in the

B direction) and then push in the lock lever (in the A

direction).

To stop the tool from the locked position, pull the switch

trigger fully (in the B direction), then release it.

For tool with the lock-o switch

Country specic

To prevent the switch trigger from accidentally pulled, a

lock lever is provided.

To start the tool, push in the lock lever (in the A direc-

tion) and then pull the switch trigger (in the B direction).

Release the switch trigger to stop.

NOTICE: Do not pull the switch trigger hard

without pressing in the lock lever. This can cause

switch breakage.

For tool with the lock-on and lock-o

switch

Country specic

CAUTION: Switch can be locked in “ON” posi-

tion for ease of operator comfort during extended

use. Apply caution when locking tool in “ON”

position and maintain rm grasp on tool.

To prevent the switch trigger from accidentally pulled, a

lock lever is provided.

To start the tool, push in the lock lever (in the A direc-

tion) and then pull the switch trigger (in the B direction).

Release the switch trigger to stop.

For continuous operation, push in the lock lever (in the

A direction), pull the switch trigger (in the B direction)

and then pull the lock lever (in the C direction).

To stop the tool from the locked position, pull the switch

trigger fully (in the B direction), then release it.

NOTICE: Do not pull the switch trigger hard

without pressing in the lock lever. This can cause

switch breakage.

Indication lamp

► Fig.6: 1. Indication lamp

The indication lamp lights up green when the tool is

plugged.

If the indication lamp does not light up, the mains cord

or the controller may be defective.

The indication lamp lights up but the tool does not start

even if the tool is switched on, the controller or the

switch may be defective.

If the indicator lamp blinks in red, the carbon brushes

may be worn out or the motor may be defective.

Unintentional restart proof

The tool does not start with the switch being lock-on

even when the tool is plugged.

At this time, the indication lamp blinks in red to show the

unintentional restart proof device is working.

To cancel the unintentional restart proof, return the

switch to OFF position.

NOTE: Wait more than one second before restarting

the tool when unintentional restart proof works.

Active Feedback sensing

Technology

CAUTION: Hold the tool rmly until the rota-

tion stops.

The tool electronically detects situations where the

wheel or accessory may be at risk to be bound. In such

situation, the tool automatically shuts o the power to

prevent further rotation of the spindle (this does not

prevent kickback).

At this time, the indication lamp blinks in red and shows

the Active Feedback sensing Technology is working.

To restart the tool, switch o the tool rst, remove the

cause of sudden drop in the rotation speed, and then

turn the tool on.

Soft start feature

Soft start feature reduces starting reaction.

ASSEMBLY

CAUTION: Always be sure that the tool is

switched o and unplugged before carrying out

any work on the tool.

Installing side grip (handle)

CAUTION: Always be sure that the side grip is

installed securely before operation.

CAUTION: You can install the side grip on the

3 holes. Install the side grip on one of the holes

according to the operation.

Screw the side grip securely on the position of the tool

as shown in the gure.

► Fig.7

14 ENGLISH

Installing or removing loop handle

Optional accessory

CAUTION: Always be sure the bolts on the

loop handle is securely tightened before use.

CAUTION: Hold the gripping area of the loop

handle specied in the gure. Also, keep the hand

away from the metal part of the grinder during

operation. Touching the metal part may result in

electric shock, if the cutting attachment cuts live wire

unexpectedly.

The loop handle can be more comfortable than the orig-

inal side grip for some applications. To install the loop

handle, mount it onto the tool as illustrated and tighten

two bolts to x it.

To remove the loop handle, follow the installation proce-

dure in reverse.

► Fig.8: 1. Loop handle 2. Bolt 3. Gripping area

Installing or removing wheel guard

(For depressed center wheel, ap

disc, ex wheel, wire wheel brush /

abrasive cut-o wheel, diamond

wheel)

WARNING: When using a depressed center

wheel, ap disc, ex wheel or wire wheel brush,

the wheel guard must be tted on the tool so that

the closed side of the guard always points toward

the operator.

WARNING: When using an abrasive cut-o /

diamond wheel, be sure to use only the special

wheel guard designed for use with cut-o wheels.

(In some European countries, when using a diamond

wheel, the ordinary guard can be used. Follow the

regulations in your country.)

For tool with locking screw type

wheel guard

Mount the wheel guard with the protrusions on the

wheel guard band aligned with the notches on the bear-

ing box. Then rotate the wheel guard to such an angle

that it can protect the operator according to work. Be

sure to tighten the screw securely.

To remove wheel guard, follow the installation proce-

dure in reverse.

► Fig.9: 1. Wheel guard 2. Bearing box 3. Screw

For tool with clamp lever type wheel

guard

Optional accessory

WARNING: The wheel guard must be tted

on the tool so that the closed side of the guard

always points toward the operator.

Loosen the nut, and then pull the lever in the direction

of the arrow.

► Fig.10: 1. Nut 2. Lever

Mount the wheel guard with the protrusions on the

wheel guard band aligned with the notches on the bear-

ing box. Then rotate the wheel guard to such an angle

that it can protect the operator according to work.

► Fig.11: 1. Wheel guard 2. Bearing box

► Fig.12: 1. Wheel guard

Securely tighten the nut using a spanner, and then

close the lever in direction of the arrow to fasten the

wheel guard. If the lever is too tight or too loose to

fasten the wheel guard, open the lever and then loosen

or tighten the nut using the spanner to adjust the tight-

ening of the wheel guard band.

► Fig.13: 1. Nut 2. Lever

To remove wheel guard, follow the installation proce-

dure in reverse.

Installing or removing depressed

center wheel or ap disc

Optional accessory

WARNING: When using a depressed center

wheel or ap disc, the wheel guard must be tted

on the tool so that the closed side of the guard

always points toward the operator.

CAUTION: Make sure that the mounting part

of the inner ange ts into the inner diameter of

the depressed center wheel / ap disc perfectly.

Mounting the inner ange on the wrong side may

result in the dangerous vibration.

Mount the inner ange onto the spindle.

Make sure to t the dented part of the inner ange onto

the straight part at the bottom of the spindle.

Fit the wheel/disc on the inner ange and screw the lock

nut with its protrusion facing downward (facing towards

the wheel).

► Fig.14: 1. Lock nut 2. Depressed center wheel

3. Inner ange 4. Mounting part

To tighten the lock nut, press the shaft lock rmly so

that the spindle cannot revolve, then use the lock nut

wrench and securely tighten clockwise.

► Fig.15: 1. Lock nut wrench 2. Shaft lock

To remove the wheel, follow the installation procedure

in reverse.

Installing or removing ex wheel

Optional accessory

WARNING: Always use supplied guard when

ex wheel is on the tool. Wheel can shatter during

use and guard helps to reduce chances of personal

injury.

► Fig.16: 1. Lock nut 2. Flex wheel 3. Back up pad

4. Inner ange

Follow instructions for depressed center wheel but also

use back up pad over wheel. See order of assembly on

accessories page in this manual.

15 ENGLISH

Installing or removing Ezynut

Optional accessory

Only for tools with M14 spindle thread.

Mount inner ange, abrasive wheel and Ezynut onto the

spindle so that Makita Logo on Ezynut faces outside.

► Fig.17: 1. Ezynut 2. Abrasive wheel 3. Inner ange

4. Spindle

Press shaft lock rmly and tighten Ezynut by turning the

abrasive wheel clockwise as far as it turns.

► Fig.18: 1. Shaft lock

To loosen the Ezynut, turn the outside ring of Ezynut

counterclockwise.

NOTE: Ezynut can be loosened by hand as long

as the arrow points the notch. Otherwise a lock nut

wrench is required to loosen it. Insert one pin of the

wrench into a hole and turn Ezynut counterclockwise.

► Fig.19: 1. Arrow 2. Notch

► Fig.20

Installing or removing abrasive disc

Optional accessory

► Fig.21: 1. Sanding lock nut 2. Abrasive disc

3. Rubber pad

1. Mount the rubber pad onto the spindle.

2. Fit the disc on the rubber pad and screw the sand-

ing lock nut onto the spindle.

3. Hold the spindle with the shaft lock, and securely

tighten the sanding lock nut clockwise with the lock nut

wrench.

To remove the disc, follow the installation procedure in

reverse.

NOTE: Use sander accessories specied in this man-

ual. These must be purchased separately.

Installing or removing abrasive cut-

o / diamond wheel

Optional accessory

WARNING: When using an abrasive cut-o /

diamond wheel, be sure to use only the special

wheel guard designed for use with cut-o wheels.

(In some European countries, when using a diamond

wheel, the ordinary guard can be used. Follow the

regulations in your country.)

WARNING: NEVER use cut-o wheel for side

grinding.

Mount the inner ange onto the spindle.

Fit the wheel / disc on the inner ange and screw the

lock nut onto the spindle.

► Fig.22: 1. Lock nut 2. Abrasive cut-o wheel / dia-

mond wheel 3. Inner ange 4. Wheel guard

for abrasive cut-o wheel / diamond wheel

For Australia and New Zealand

► Fig.23: 1. Lock nut 2. Outer ange 78 3. Abrasive

cut-o wheel / diamond wheel 4. Inner

ange 78 5. Wheel guard for abrasive cut-

o wheel / diamond wheel

Installing wire cup brush

Optional accessory

CAUTION: Do not use brush that is damaged,

or which is out of balance. Use of damaged brush

could increase potential for injury from contact with

broken brush wires.

► Fig.24: 1. Wire cup brush

Remove any accessories on spindle. Thread wire cup

brush onto spindle and tighten with the wrench.

Installing wire wheel brush

Optional accessory

CAUTION: Do not use wire wheel brush that

is damaged, or which is out of balance. Use of

damaged wire wheel brush could increase potential

for injury from contact with broken wires.

CAUTION: ALWAYS use guard with wire

wheel brushes, assuring diameter of wheel ts

inside guard. Wheel can shatter during use and

guard helps to reduce chances of personal injury.

► Fig.25: 1. Wire wheel brush

Remove any accessories on spindle. Thread wire wheel

brush onto spindle and tighten with the wrench.

Installing dust collecting wheel

guard

Dust collecting wheel guard for grinding

► Fig.26: 1. Lock nut 2. Cup-type diamond wheel

3. Hubbed cup-type diamond wheel 4. Inner

ange 5. Dust collecting wheel guard

6. Bearing box

WARNING: Dust collecting wheel guard for

grinding is only for use in grinding at concrete

with a cup-type diamond wheel. Do not use it with

grinding stones or for any purpose other than

mentioned.

Dust collecting wheel guard for cut-o (for model

GA9070 / GA9071)

► Fig.27

NOTE: For information how to install the dust collect-

ing cover, refer to the manual of the dust collecting

cover.

16 ENGLISH

Connecting a vacuum cleaner

Optional accessory

WARNING: Never vacuum metal particles

generated by operation. Metal particles generated

by such operation are so hot that they ignite dust and

the lter inside the vacuum cleaner.

To avoid dusty environment caused by masonry cut-

ting, use a dust collecting wheel guard and a vacuum

cleaner.

Refer to the instruction manual attached to the dust

collecting wheel guard for assembling and using it.

► Fig.28: 1. Dust collecting wheel guard for cut-o

2. Hose of the vacuum cleaner

OPERATION

WARNING: It should never be necessary to

force the tool. The weight of the tool applies ade-

quate pressure. Forcing and excessive pressure

could cause dangerous wheel breakage.

WARNING: ALWAYS replace wheel if tool is

dropped while grinding.

WARNING: NEVER bang or hit grinding disc

or wheel onto work.

WARNING: Avoid bouncing and snagging

the wheel, especially when working corners,

sharp edges etc. This can cause loss of control and

kickback.

WARNING: NEVER use tool with wood cutting

blades and other saw blades. Such blades when

used on a grinder frequently kick and cause loss of

control leading to personal injury.

CAUTION: Never switch on the tool when it

is in contact with the workpiece, it may cause an

injury to operator.

CAUTION: Always wear safety goggles or a

face shield during operation.

CAUTION: After operation, always switch o

the tool and wait until the wheel has come to a

complete stop before putting the tool down.

CAUTION: ALWAYS hold the tool rmly with

one hand on housing and the other on the side

grip (handle).

Grinding and sanding operation

► Fig.29

Turn the tool on and then apply the wheel or disc to the

workpiece.

In general, keep the edge of the wheel or disc at an

angle of about 15° to the workpiece surface.

During the break-in period with a new wheel, do not

work the grinder in forward direction or it may cut into

the workpiece. Once the edge of the wheel has been

rounded o by use, the wheel may be worked in both

forward and backward direction.

Operation with abrasive cut-o /

diamond wheel

Optional accessory

WARNING: Do not “jam” the wheel or apply

excessive pressure. Do not attempt to make an

excessive depth of cut. Overstressing the wheel

increases the loading and susceptibility to twisting

or binding of the wheel in the cut and the possibility

of kickback, wheel breakage and overheating of the

motor may occur.

WARNING: Do not start the cutting operation

in the workpiece. Let the wheel reach full speed

and carefully enter into the cut moving the tool

forward over the workpiece surface. The wheel

may bind, walk up or kickback if the power tool is

started in the workpiece.

WARNING: During cutting operations, never

change the angle of the wheel. Placing side pres-

sure on the cut-o wheel (as in grinding) will cause

the wheel to crack and break, causing serious per-

sonal injury.

WARNING: A diamond wheel shall be oper-

ated perpendicular to the material being cut.

Usage example: operation with abrasive cut-o

wheel

► Fig.30

Usage example: operation with diamond wheel

► Fig.31

Operation with wire cup brush

Optional accessory

CAUTION: Check operation of brush by run-

ning tool with no load, insuring that no one is in

front of or in line with brush.

NOTICE: Avoid applying too much pressure

which causes over bending of wires when using

the wire cup brush. It may lead to premature

breakage.

Usage example: operation with wire cup brush

► Fig.32

Operation with wire wheel brush

Optional accessory

CAUTION: Check operation of wire wheel

brush by running tool with no load, insuring that

no one is in front of or in line with the wire wheel

brush.

NOTICE: Avoid applying too much pressure

which causes over bending of wires when

using wire wheel brush. It may lead to premature

breakage.

Usage example: operation with wire wheel brush

► Fig.33

17 ENGLISH

MAINTENANCE

CAUTION: Always be sure that the tool is

switched o and unplugged before attempting to

perform inspection or maintenance.

NOTICE: Never use gasoline, benzine, thinner,

alcohol or the like. Discoloration, deformation or

cracks may result.

To maintain product SAFETY and RELIABILITY,

repairs, any other maintenance or adjustment should

be performed by Makita Authorized or Factory Service

Centers, always using Makita replacement parts.

NOTE: Do not loosen the screw on the cover.

Otherwise the cover may be opened accidentally.

► Fig.34: 1. Screw

Air vent cleaning

The tool and its air vents have to be kept clean.

Regularly clean the tool's air vents or whenever the

vents start to become obstructed.

► Fig.35: 1. Exhaust vent 2. Inhalation vent

Brake maintenance

The tool should be immediately repaired by Makita

Authorized or Factory Service Centers in following

situation or any other malfunction;

— The braking performance declines noticeably.

— The inertial rotation of the accessory continues

for more than 6 seconds after releasing the switch

trigger.

18 ENGLISH

OPTIONAL ACCESSORIES

CAUTION: These accessories or attachments are recommended for use with your Makita tool spec-

ied in this manual. The use of any other accessories or attachments might present a risk of injury to persons.

Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

► Fig.36

-180 mm 230 mm

1Side grip / Loop handle

2Wheel guard for depressed center grinding wheel / ap disc / wire wheel brush

3Inner ange *1

4Depressed center grinding wheel / Flap disc

5Lock nut / Ezynut *1

6Wheel guard for abrasive cut o wheel / diamond wheel *2

7Inner ange 78 (Australia and New Zealand only) *3

8Abrasive cut-o wheel / Diamond wheel

9Outer ange 78 (Australia and New Zealand only) *3

10 Back up pad

11 Flex wheel

12 Rubber pad

13 Abrasive disc

14 Sanding lock nut

15 Wire wheel brush

16 Wire cup brush

17 -Side grip for dust collecting wheel guard

18 -Dust collecting wheel guard for cut-o

19 -Special ange *4

20 -Diamond wheel

21 Dust collecting wheel guard for oset diamond wheel

22 Oset diamond wheel

-Lock nut wrench

-Dust cover attachment

NOTE: *1 Only for tools with M14 spindle thread.

NOTE: *2 In some European countries, when using a diamond wheel, the ordinary guard can be used instead of the

special guard covering the both side of the wheel. Follow the regulations in your country.

NOTE: *3 Use Inner ange 78 and Outer ange 78 together. (Australia and New Zealand only)

NOTE: *4 The Inner ange for the grinder equipped with the brake function when using together with the dust collect-

ing wheel guard.

NOTE: Some items in the list may be included in the tool package as standard accessories. They may dier from

country to country.

中文简体

中文简体 (原本)

规格

型号： GA7070 GA7071 GA9070 GA9071

砂轮直径 180 mm 230 mm

最大砂轮厚度 7.2 mm 6.5 mm

主轴螺纹 M14或5/8″ （规格因国家而异）

额定速度（n）8,500 r/min 6,600 r/min

长度 506 mm

开关把手杆式 D式杆式 D式

净重 6.1 - 6.6 kg 6.2 - 6.7 kg 6.3 - 8.5 kg 6.4 - 8.5 kg

安全等级 /II

• 生产者保留变更规格不另行通知之权利。

• 规格可能因销往国家之不同而异。

• 重量因附件而异。根据EPTA-Procedure 01/2014，最重与最轻的组合见表格。

符号

以下显示本设备可能会使用的符号。在使用

工具之前，请务必理解其含义。

阅读使用说明书。

佩带安全眼镜。

II类工具

仅限于欧盟国家

由于本设备中包含有害成分，

因此使用过的电气和电子设备

可能会对环境和人体健康产生

负面影响。

请勿将电气和电子工具与家庭

普通废弃物放在一起处置！

根据欧洲关于废弃电气电子设

备的指令及其国家层面的修订

法案，使用过的电气和电子设

备应当单独收集并递送至城市

垃圾收集点，根据环保规定进

行处置。

此规定由标有叉形标志的带轮

垃圾桶符号表示。

用途

本工具用于在无水的情况下进行金属和石块

材料的磨削、砂磨和切割。

电源

本工具只可连接电压与铭牌所示电压相同的

电源，且仅可使用单相交流电源。本工具双

重绝缘，因此也可用于不带接地线的插座。

安全警告

电动工具通用安全警告

警告：阅读随电动工具提供的所有安全

警告、说明、图示和规定。不遵照以下所列

说明会导致电击、着火和／或严重伤害。

保存所有警告和说明书以备查

阅。

警告中的术语“电动工具”是指市电驱动

（有线）电动工具或电池驱动（无线）电动

工具。

中文简体

工作场地的安全

1. 保持工作场地清洁和明亮。杂乱和黑暗

的场地会引发事故。

2. 不要在易爆环境，如有易燃液体、气体

或粉尘的环境下操作电动工具。电动工

具产生的火花会点燃粉尘或气体。

3. 操作电动工具时，远离儿童和旁观者。

注意力不集中会使你失去对工具的控制。

电气安全

1. 电动工具插头必须与插座相配。绝不能

以任何方式改装插头。需接地的电动工

具不能使用任何转换插头。未经改装的

插头和相配的插座将降低电击风险。

2. 避免人体接触接地表面，如管道、散热

片和冰箱。如果你身体接触接地表面会

增加电击风险。

3. 不得将电动工具暴露在雨中或潮湿环境

中。水进入电动工具将增加电击风险。

4. 不得滥用软线。绝不能用软线搬运、拉

动电动工具或拔出其插头。使软线远离

热源、油、锐边或运动部件。受损或缠

绕的软线会增加电击风险。

5. 当在户外使用电动工具时，使用适合户

外使用的延长线。适合户外使用的电线

将降低电击风险。

6. 如果无法避免在潮湿环境中操作电动工

具，应使用带有剩余电流装置（RCD）

保护的电源。RCD的使用可降低电击风

险。

7. 始终建议通过额定剩余电流为30 mA或

以下的RCD来使用电源。

8. 电动工具会产生对用户无害的电磁场

（EMF）。但是，起搏器和其他类似医

疗设备的用户应在操作本电动工具前咨

询其设备的制造商和／或医生寻求建议。

9. 请勿用湿手触摸电源插头。

10. 如果导线破损，则由制造商或其代理商

更换以避免安全隐患。

人身安全

1. 保持警觉，当操作电动工具时关注所从

事的操作并保持清醒。当你感到疲倦，

或在有药物、酒精或治疗反应时，不要

操作电动工具。在操作电动工具时瞬间

的疏忽会导致严重人身伤害。

2. 使用个人防护装置。始终佩戴护目镜。

防护装置，诸如适当条件下使用防尘面

具、防滑安全鞋、安全帽、听力防护等

装置能减少人身伤害。

3. 防止意外起动。在连接电源和/或电池

包、拿起或搬运工具前确保开关处于关

断位置。手指放在开关上搬运工具或开

关处于接通时通电会导致危险。

4. 在电动工具接通之前，拿掉所有调节钥

匙或扳手。遗留在电动工具旋转零件上

的扳手或钥匙会导致人身伤害。

5. 手不要过分伸展。时刻注意立足点和身

体平衡。这样能在意外情况下能更好地

控制住电动工具。

6. 着装适当。不要穿宽松衣服或佩戴饰品。

让你的头发和衣服远离运动部件。宽松

衣服、佩饰或长发可能会卷入运动部件。

7. 如果提供了与排屑、集尘设备连接用的

装置，要确保其连接完好且使用得当。

使用集尘装置可降低尘屑引起的危险。

8. 不要因为频繁使用工具而产生的熟悉感

而掉以轻心，忽视工具的安全准则。某

个粗心的动作可能在瞬间导致严重的伤

害。

9. 使用电动工具时请始终佩带护目镜以免

伤害眼睛。护目镜须符合美国ANSI

Z87.1、欧洲EN 166或者澳大利亚／新

西兰的AS/NZS 1336的规定。在澳大利

亚／新西兰，法律要求佩带面罩保护脸

部。

雇主有责任监督工具操作者和其他近工

作区域人员佩带合适的安全防护设备。

电动工具使用和注意事项

1. 不要勉强使用电动工具，根据用途使用

合适的电动工具。选用合适的按照额定

值设计的电动工具会使你工作更有效、

更安全。

2. 如果开关不能接通或关断电源，则不能

使用该电动工具。不能通过开关来控制

的电动工具是危险的且必须进行修理。

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