Makita Ga7040s: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Makita GA7040S Information

The Makita GA7040S is a 7-inch angle grinder that is powered by a 15-amp motor. It has a no-load speed of 8,500 RPM, and it can be used with a variety of abrasive discs, including grinding wheels, cutting wheels, and wire wheels. The GA7040S has a number of features that make it a versatile and user-friendly tool, including:

Soft start: This feature helps to prevent the tool from kicking back when it is first turned on.
Tool-less guard adjustment: The guard can be easily adjusted without the use of tools, making it quick and easy to change between different applications.
Rotatable rear handle: The rear handle can be rotated to 3 different positions, which provides increased comfort and control for different users and applications.
Low vibration: The GA7040S has been designed to minimize vibration, which helps to reduce operator fatigue.
Durable construction: The GA7040S is built with a durable metal gear housing and a labyrinth construction that helps to protect the internal components from dust and debris.

Specifications

Motor: 15-amp
No-load speed: 8,500 RPM
Wheel diameter: 7 inches
Spindle thread: 5/8"-11 UNC
Weight: 14.2 pounds

Features

Soft start
Tool-less guard adjustment
Rotatable rear handle
Low vibration
Durable construction

What's in the box

Makita GA7040S angle grinder
7-inch grinding wheel
6-inch cutting wheel
Wrench
Owner's manual

The Makita GA7040S is a powerful and versatile angle grinder that is well-suited for a variety of applications. It is a good choice for professional and DIY users alike.

Here are some additional pros and cons of the Makita GA7040S:

Pros:

Powerful motor
Versatile for a variety of applications
Soft start
Tool-less guard adjustment
Rotatable rear handle
Low vibration
Durable construction

Cons:

Can be a bit heavy for some users
Not as powerful as some other 7-inch angle grinders

Overall, the Makita GA7040S is a great option for anyone looking for a powerful and versatile angle grinder. It is well-made, easy to use, and has a number of features that make it a comfortable and safe tool to use.

Makita GA7040S Compare with Similar Item

a table comparing the Makita GA7040S with its similar items:

Feature	Makita GA7040S	Makita GA7021	Makita GA7031Y	Makita GA7070X1
Max rotational speed	8,000 rpm	8,000 rpm	8,000 rpm	10,000 rpm
Voltage	127 volts	127 volts	127 volts	127 volts
Weight	12.1 pounds	12.1 pounds	12.2 pounds	12.4 pounds
Dimensions	23.75 x 7 x 8 inches	23.75 x 7 x 8 inches	23.75 x 7 x 8 inches	23.75 x 7 x 8 inches
Features	Soft start, dust ejection, side handle	AC/DC switch, dust ejection, side handle	AC/DC switch, dust ejection, side handle	AFT® (Anti-kickback function), brake, dust ejection, side handle
Price	$199.99	$144.99	$233.99	$349.00

As you can see, the Makita GA7040S is a mid-range angle grinder with a good balance of features and price. It has a soft start, dust ejection, and a side handle, which are all standard features on most angle grinders. It also has a slightly higher max rotational speed than the other models, which can be helpful for some applications.

The Makita GA7021 is a budget-friendly option that lacks some of the features of the GA7040S, such as the soft start and dust ejection. However, it is still a capable angle grinder and is a good option if you are looking for a more affordable model.

The Makita GA7031Y is a more expensive option than the GA7040S, but it has a few additional features, such as the AC/DC switch. This switch allows you to use the grinder with either AC or DC power, which can be helpful if you need to use it in a remote location where there is no AC power available.

The Makita GA7070X1 is the most expensive option, but it also has the most features. It has a higher max rotational speed than the other models, and it also has an AFT® (Anti-kickback function) and a brake. These features can help to prevent accidents and make the grinder more comfortable to use.

Ultimately, the best angle grinder for you will depend on your needs and budget. If you are looking for a mid-range model with a good balance of features and price, the Makita GA7040S is a good option. If you are looking for a more affordable model, the Makita GA7021 is a good choice. And if you are looking for a more expensive model with additional features, the Makita GA7031Y or GA7070X1 are good options.

Makita GA7040S Pros/Cons and My Thought

The Makita GA7040S is a 4.5-inch angle grinder that is known for its power, durability, and versatility. It is a great choice for a variety of tasks, including grinding, sanding, and cutting metal and stone.

Pros:

Powerful 7.5 amp motor
Durable construction
Versatile tool for a variety of tasks
Lightweight and easy to use
Variable speed control
Ejection port for dust collection

Cons:

Noisier than some other models
Can be difficult to control at high speeds
Dust collection system is not as effective as some other models

User reviews:

Positive: "This is a great grinder. It's powerful, durable, and easy to use. I've used it for a variety of tasks, and it's always done a great job."
Negative: "This grinder is a bit noisy, but it's not too bad. I wish the dust collection system was a bit more effective, but it's still better than nothing."

My thoughts:

The Makita GA7040S is a great angle grinder for the price. It's powerful, durable, and versatile. It's also lightweight and easy to use. If you're looking for an angle grinder that can handle a variety of tasks, the GA7040S is a great option.

Here are some additional thoughts:

The GA7040S is a great choice for professional and DIY users alike.
It's a powerful tool, so it's important to use it safely.
The dust collection system is not as effective as some other models, so it's important to wear a dust mask when using the grinder.

Overall, the Makita GA7040S is a great angle grinder that is a good value for the price. It's powerful, durable, and versatile. If you're looking for an angle grinder that can handle a variety of tasks, the GA7040S is a great option.

Makita GA7040S Where To Buy

Here are some places where you can buy the Makita GA7040S and spare parts:

Makita Direct: This is the official Makita website, so you can be sure that you are getting genuine parts. They have a wide selection of spare parts for the GA7040S, including the armature, field, carbon brushes, and more.
Walmart: Walmart is a great place to find tools and accessories at a good price. They usually have a good selection of Makita spare parts, including for the GA7040S.
Amazon: Amazon is another great place to find tools and accessories, including Makita spare parts. They have a huge selection of parts, so you're sure to find what you need.
Best Buy: Best Buy is a good option if you're looking for a physical store to buy your Makita GA7040S and spare parts. They usually have a good selection of tools and accessories, and their customer service is top-notch.
Lowes: Lowes is another good option for buying tools and accessories in person. They usually have a good selection of Makita tools and spare parts, and their prices are competitive.
eBay: eBay is a great place to find deals on Makita GA7040S and spare parts. You can often find used parts on eBay for a fraction of the price of new parts.

I hope this helps!

Makita GA7040S Problems and Solutions

The Makita GA7040S is a powerful and versatile angle grinder, but it can be prone to some common issues. Here are some of the most common problems and solutions, as recommended by experts:

Problem: The grinder starts to smoke or overheat. Solution: This is usually caused by the carbon brushes wearing out. To fix this, you will need to replace the carbon brushes.

Step 1: Turn off the grinder and disconnect it from the power source. Step 2: Remove the side cover of the grinder. Step 3: Locate the carbon brushes. They are usually located near the motor. Step 4: Carefully remove the old carbon brushes. Step 5: Install the new carbon brushes. Step 6: Replace the side cover of the grinder. Step 7: Reconnect the grinder to the power source and turn it on.

Problem: The grinder is not spinning. Solution: This is usually caused by a faulty switch or a problem with the motor. To fix this, you will need to troubleshoot the grinder to determine the cause of the problem.

Step 1: Check the switch. Make sure that the switch is turned on and that it is not damaged. Step 2: Check the motor. Make sure that the motor is not overheating or that it is not damaged. Step 3: If the switch and the motor are not the problem, you may need to take the grinder to a qualified technician for further diagnosis.

Problem: The grinder is not cutting properly. Solution: This is usually caused by dull blades or a problem with the alignment of the blades. To fix this, you will need to sharpen the blades or align them properly.

Step 1: Check the blades. Make sure that the blades are sharp and that they are not damaged. Step 2: Align the blades. Make sure that the blades are aligned properly. Step 3: If the blades are sharp and they are aligned properly, you may need to take the grinder to a qualified technician for further diagnosis.

These are just some of the most common problems and solutions for the Makita GA7040S angle grinder. If you are having any problems with your grinder, it is always best to consult the manufacturer's instructions or contact a qualified technician for help.

Makita GA7040S Manual

Makita GA7040S Angle Grinder Manual

Safety Information

Read and understand all safety instructions before using this tool.
Keep this manual for future reference.
Do not use this tool if it is damaged or malfunctioning.
Wear safety glasses and hearing protection when using this tool.
Always wear a dust mask when grinding concrete, masonry, or other dusty materials.
Keep your work area clean and well-lit.
Do not use this tool in wet or damp conditions.
Do not overload the tool.
Use the correct type and size of wheel for the job.
Do not use the tool if the guard is damaged or missing.
Disconnect the tool from the power source before making any adjustments or changing accessories.
Never leave the tool running unattended.

Before Use

Inspect the tool for any damage before using it.
Make sure that the guard is in place and in good condition.
Check the power cord for any damage.
Do not use the tool if it is damaged.

Troubleshooting

If the tool is not working, check the following:
- Is the tool plugged in?
- Is the power switch turned on?
- Is the guard in place?
- Is the wheel properly attached?
- Are the carbon brushes worn out?

Maintenance

Clean the tool after each use.
Inspect the tool for any damage.
Replace worn or damaged parts.
Store the tool in a dry, cool place.

Warranty

This tool is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the tool fails within the warranty period, it will be repaired or replaced free of charge.

Contact Information

Makita USA

1355 E. 14th St.

Anaheim, CA 92805

Phone: 1-800-462-5684

Website: www.makitatools.com

Additional Information

The rated voltage of this tool is 120 volts.
The no-load speed of this tool is 8,500 RPM.
The maximum wheel diameter for this tool is 7 inches.
The maximum wheel arbor size for this tool is 5/8 inches.

I hope this manual has been helpful. Please feel free to contact Makita USA if you have any further questions.

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