1

2

009427

1.Lock nut wrench

2.Shaft lock

spindle cannot revolve, then use the lock nut wrench and securely tighten clockwise.

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

OPERATION

WARNING:

•

It should never be necessary to force the tool. The

 

weight of the tool applies adequate pressure.

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

WARNING:

Only actuate the shaft lock when the spindle is not moving.

Installing or removing flex wheel (optional accessory)

 

Forcing and excessive pressure could cause

 

dangerous wheel breakage.

•

ALWAYS replace wheel if tool is dropped while

 

grinding.

•

NEVER bang or hit grinding disc or wheel onto

 

work.

•

Avoid bouncing and snagging the wheel, especially

 

when working corners, sharp edges etc. This can

 

cause loss of control and kickback.

1

2

3

4

009434

1.Lock nut

2.Flex wheel

3.Plastic pad

4.Inner flange

• 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:

•After operation, always switch off the tool and wait until the wheel has come to a complete stop before putting the tool down.

Grinding and sanding operation

WARNING:

•Always use supplied guard when flex wheel is on

tool. Wheel can shatter during use and guard helps to reduce chances of personal injury.

Follow instructions for depressed center grinding wheel/Multi-disc but also use plastic pad over wheel. See order of assembly on accessories page in this manual.

Installing or removing abrasive disc (optional accessory)

 

1.

Lock nut

1

2. Abrasive disc

2

3.

Rubber pad

3

 

 

009435

NOTE:

•Use sander accessories specified in this manual. These must be purchased separately.

Mount the rubber pad onto the spindle. Fit the disc on the rubber pad and screw the lock nut onto the spindle. To tighten the lock nut, press the shaft lock firmly so that the

A B

009429

ALWAYS hold the tool firmly with one hand on housing and the other on the side handle. 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 degrees to the workpiece surface.

During the break-in period with a new wheel, do not work the grinder in the B direction or it will cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both A and B direction.

6

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Makita GA5030, GA4530 Operation, Installing or removing flex wheel optional accessory, Grinding and sanding operation
Page 5 Page 7

GA4030, GA4530, GA5030 specifications

Makita is renowned for its high-performance power tools, and the GA5030, GA4530, and GA4030 angle grinders are no exception. These models exemplify Makita's commitment to innovation, durability, and user-friendly design, making them ideal for both professional tradespeople and DIY enthusiasts.

The Makita GA5030 is a compact and versatile angle grinder equipped with a powerful 5-inch wheel. One of its standout features is its lightweight design, which minimizes fatigue during prolonged use. The GA5030 boasts an 8.5-amp motor capable of delivering up to 11,000 RPM, providing swift and efficient material removal. This model also integrates a labrynth construction that seals and protects the motor and bearings from dust and debris, enhancing the tool’s longevity. Additionally, its ergonomic rubberized grip ensures comfort and control, making it suitable for a variety of applications, from metalworking to masonry.

Moving onto the GA4530, this 4.5-inch angle grinder balances power and portability. Like the GA5030, it is powered by a robust 7.5-amp motor that generates a no-load speed of 10,000 RPM. Its compact design allows for easier handling in tight spaces, making it ideal for both home projects and professional jobs. An important feature of the GA4530 is the protective cover that can be adjusted without tools, allowing for quick changes based on the job at hand. Moreover, this model includes an automatic shut-off carbon brush system that extends the life of the motor, ensuring lasting performance.

Lastly, the GA4030 serves as an excellent choice for those seeking a smaller, yet powerful tool. This 4-inch angle grinder is equipped with a 6.0-amp motor capable of reaching speeds up to 10,000 RPM. The GA4030’s slim body design allows for easy handling, while its rubberized grip provides added comfort and reduces vibrations. This model also features a metal gear housing for increased durability, making it suitable for heavy-duty applications.

In summary, the Makita GA5030, GA4530, and GA4030 are outstanding angle grinders, each offering unique features and capabilities to cater to various needs. With their powerful motors, durable construction, and user-friendly designs, these tools reflect Makita’s high standards in professional-grade equipment. Whether you are a seasoned professional or a weekend DIYer, these grinders will undoubtedly enhance your workflow and deliver exceptional results.
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