Maintenance, Accessories, Replacing carbon brushes

•ALWAYS use guard with wire wheel brushes, assuring diameter of wheel fits inside guard. Wheel can shatter during use and guard helps to reduce chances of personal injury.

	1. Wire wheel
1	brush
1

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Unplug tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread wire wheel brush onto spindle and tighten with the wrenches.

When using wire wheel brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage.

MAINTENANCE

CAUTION:

•Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

•Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

When the resin insulating tip inside the carbon brush is exposed to contact the commutator, it will automatically shut off the motor. When this occurs, both carbon brushes should be replaced. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.

Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.

	1.	Brush holder
		cap
	2.	Screwdriver
1	2
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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.

ACCESSORIES

CAUTION:

• These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other

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1.Exhaust vent

2.Inhalation vent

accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

•	Your tool is supplied with a guard for use with a
	depressed center grinding wheel, multi-disc, flex
	wheel and wire wheel brush. If you decide to use
	your Makita grinder with approved accessories
	which you purchase from your Makita distributor or
	factory service center, be sure to obtain and use all

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.

necessary fasteners and guards as recommended

in this manual. Your failure to do so could result in personal injury to you and others.

Replacing carbon brushes

1.Commutator

2.Insulating tip

3.Carbon brush

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

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GA7050, GA7050R, GA9050, GA9050R specifications

The Makita GA9050R, GA9050, GA7050R, and GA7050 are powerful angle grinders designed for professionals and DIY enthusiasts alike. These tools exemplify Makita's commitment to quality, performance, and safety, making them ideal for a wide range of applications, from metal fabrication to masonry work.

Starting with the GA9050 and GA9050R models, both boast a robust 2200W motor that delivers high performance and efficiency. The GA9050R features a soft start function, which reduces the initial torque and prevents sudden movements when starting up, ensuring greater user control. Both models have a large trigger switch for easy operation, even while wearing gloves. The last chance reset feature on the GA9050R further enhances safety by automatically switching off the tool after an accidental power interruption.

The GA7050 and GA7050R are slightly lighter, with a powerful 1500W motor, making them perfect for lighter applications without compromising on performance. The GA7050R model includes advanced electronic circuitry, offering overload protection and a speed control feature, which allows users to adjust the RPM to match different materials and tasks. This is particularly useful for intricate grinding and polishing jobs.

All four models share a durable design, featuring a protective cover that can be easily adjusted without the use of tools, enhancing user convenience. The gear housing is also built to withstand the rigors of professional use, ensuring longevity in demanding environments. The ergonomic design, coupled with a rubberized grip, provides added comfort during extended use, reducing fatigue.

Makita has integrated advanced cooling systems in these models, allowing for continuous operation without overheating. The models also feature a dust-proof structure that protects internal components, ensuring optimal performance even in dusty conditions.

In summary, the Makita GA9050R, GA9050, GA7050R, and GA7050 are exceptional angle grinders that combine power, safety, and user-friendly features. With their innovative technologies, durable construction, and ergonomic designs, these tools are perfect for both professionals and hobbyists looking to tackle tough grinding and cutting tasks with confidence. Whether for heavy-duty industrial applications or home improvement projects, these Makita models deliver reliable performance and efficiency.