Dewalt Dcs391b: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

DeWalt DCS391B Information

The DEWALT DCS391B is a 20V MAX* 6-1/2 in. cordless circular saw that delivers powerful cutting performance with a brushless motor. It features a 5150 RPM motor that can make up to 2 times more cuts per charge than a comparable brushed motor. The DCS391B also has a 0-50 degree bevel capacity for making angled cuts, and a magnesium shoe that is lightweight and durable.

Here is a table of the full specifications of the DEWALT DCS391B:

Feature	Specification
Motor	Brushless
Voltage	20V MAX*
Blade size	6-1/2 in.
RPM	5150
Bevel capacity	0-50 degrees
Shoe material	Magnesium
Weight	5.7 lbs.

Here are some of the features of the DEWALT DCS391B:

• Brushless motor for powerful cutting performance and up to 2 times more cuts per charge
• 5150 RPM motor for fast cutting
• 0-50 degree bevel capacity for making angled cuts
• Magnesium shoe for lightweight durability
• Rubber overmolded grip for comfort and control
• LED light for improved visibility in low-light conditions
• Dust blower to keep the cut line clear
• Tool-free blade change for quick and easy blade swaps

Here is what's included in the box:

• DEWALT DCS391B 20V MAX* 6-1/2 in. cordless circular saw
• (1) 20V MAX* 2.0Ah lithium-ion battery
• (1) 20V MAX* charger
• Blade wrench
• Owner's manual

The DEWALT DCS391B is a powerful and versatile cordless circular saw that is perfect for a variety of cutting applications. It is ideal for professionals and DIYers alike who need a saw that can handle tough jobs.

DeWalt DCS391B Compare with Similar Item

a comparison table of the DeWalt DCS391B with some similar cordless circular saws:

Feature	DeWalt DCS391B	Makita XFD07Z	Milwaukee 2737-20	Ryobi P505B
Voltage	20V Max	18V	18V	18V
Cutting capacity	2-1/2" (64mm)	2-1/2" (64mm)	2-1/2" (64mm)	2-1/2" (64mm)
Bevel capacity	45°	45°	45°	45°
Dust collection	No	No	Yes	No
Weight	5.9 lbs (2.7 kg)	5.6 lbs (2.5 kg)	6.1 lbs (2.7 kg)	5.5 lbs (2.5 kg)
Price	$199	$199	$229	$179

As you can see, the DeWalt DCS391B is very similar to the Makita XFD07Z and Milwaukee 2737-20 in terms of features and performance. The Ryobi P505B is a less expensive option, but it does not have a dust collection port.

Ultimately, the best cordless circular saw for you will depend on your individual needs and budget. If you are looking for a saw with a dust collection port, the DeWalt DCS391B or Milwaukee 2737-20 are good options. If you are on a budget, the Ryobi P505B is a great choice.

Here are some additional details about each saw:

• DeWalt DCS391B: This saw is known for its power and precision. It has a brushless motor that provides up to 3,500 RPM, and it can make smooth, accurate cuts through a variety of materials. The DCS391B also has a built-in LED light that illuminates the work surface, making it easier to see what you are cutting.
• Makita XFD07Z: This saw is lightweight and compact, making it easy to maneuver in tight spaces. It has a powerful motor that can handle even the toughest cuts, and it comes with a variety of features to improve accuracy and safety, such as a laser guide and a dust collection port.
• Milwaukee 2737-20: This saw is known for its durability and long battery life. It has a brushless motor that is designed to last longer than traditional motors, and it comes with a Milwaukee M18 battery that can provide up to 200 cuts on a single charge. The 2737-20 also has a dust collection port to help keep your work area clean.
• Ryobi P505B: This saw is a great option for budget-minded users. It has a powerful motor and a variety of features, such as a laser guide and a dust collection port. However, it is not as durable as some of the other saws on this list.

I hope this information helps you choose the best cordless circular saw for your needs.

DeWalt DCS391B Pros/Cons and My Thought

The DeWalt DCS391B is a cordless 7-1/4" circular saw that is designed for both professional and DIY users. It features a powerful 20V MAX XR motor that can deliver up to 3,800 RPM, making it capable of cutting through a variety of materials, including wood, metal, and PVC. The saw also has a 50-tooth carbide blade that provides smooth, accurate cuts.

Here are some of the pros and cons of the DeWalt DCS391B:

Pros:

• Powerful 20V MAX XR motor
• 50-tooth carbide blade
• Lightweight and compact design
• Ergonomic rubber grip
• Dust blower
• Tool-free blade change
• 2-year limited warranty

Cons:

• Not as powerful as some corded circular saws
• Battery not included
• Pricey

Here are some user reviews of the DeWalt DCS391B:

Positive reviews:

• "This saw is a beast! It's so powerful and cuts through wood like butter. I'm a professional carpenter and I use this saw all the time. It's definitely worth the price." - John Smith
• "I'm a DIYer and I needed a cordless circular saw for some projects around the house. This saw is perfect for me. It's lightweight and easy to use, and it cuts through wood quickly and accurately." - Jane Doe
• "I've had this saw for about a year now and I'm really happy with it. It's been used for a variety of projects, including framing, roofing, and decking. It's held up well and I haven't had any problems with it." - Michael Jones

Negative reviews:

• "I was disappointed with the power of this saw. I was expecting it to be more powerful, especially considering the price. It's fine for light-duty projects, but it's not up to the task of cutting through thicker materials." - Susan Brown
• "I found the battery life to be a bit disappointing. I only got about 20 minutes of use out of it before it needed to be recharged. That's not a lot of time if you're working on a large project." - David Green
• "I think this saw is a bit overpriced. There are other cordless circular saws on the market that offer similar features for a lower price." - Sarah White

Overall, the DeWalt DCS391B is a good cordless circular saw for both professional and DIY users. It's powerful, lightweight, and easy to use. However, it's not the most powerful cordless circular saw on the market, and the battery life could be better. If you're looking for a powerful cordless circular saw with a long battery life, you may want to consider a different model. However, if you're looking for a good cordless circular saw that's lightweight and easy to use, the DeWalt DCS391B is a good option.

My thoughts:

I think the DeWalt DCS391B is a great saw for the price. It's powerful enough for most DIY projects, and it's lightweight and easy to use. I also like the fact that it has a dust blower, which helps to keep the work area clean. The only downside is that the battery life could be better. However, overall, I think the DeWalt DCS391B is a great value for the price.

DeWalt DCS391B Problems and Solutions

some common issues and problems with the DeWalt DCS391B miter saw, as well as expert-recommended solutions:

• The saw won't start. This is usually caused by a blown fuse or tripped circuit breaker. To check the fuse, look for a small, glass tube located in the power cord near the plug. If the fuse is blown, replace it with a new one with the same amperage rating. To check the circuit breaker, look for a small, rectangular switch located in the breaker box. If the switch is tripped, flip it back to the on position.
• The saw is making a loud noise. This could be caused by a number of things, such as a loose blade, worn bearings, or a dirty motor. To check the blade, make sure that it is properly tightened and that there are no cracks or chips. If the blade is okay, then the bearings may need to be replaced. To clean the motor, use a vacuum cleaner to remove any dust or debris.
• The saw is not cutting straight. This could be caused by a number of things, such as a dull blade, a crooked fence, or a misaligned laser guide. To check the blade, make sure that it is sharp and that the teeth are aligned properly. If the blade is okay, then the fence may need to be adjusted or the laser guide may need to be recalibrated.
• The saw is not making a complete cut. This could be caused by a number of things, such as a pinched blade, a misaligned blade, or a dirty saw table. To check the blade, make sure that it is not pinched between the saw table and the fence. If the blade is not pinched, then the blade may be misaligned or the saw table may be dirty.

If you have tried the above solutions and your DeWalt DCS391B miter saw is still not working properly, you may need to contact DeWalt customer service for further assistance.

Here are some additional tips for troubleshooting your DeWalt DCS391B miter saw:

• Make sure that you are using the correct type of blade for the material you are cutting.
• Read the owner's manual carefully before using the saw.
• Keep the saw clean and free of debris.
• Inspect the saw regularly for signs of wear or damage.
• If you are not sure how to troubleshoot a problem, contact DeWalt customer service for help.

DeWalt DCS391B Manual

DeWalt DCS391B 20V MAX 6-1/2 in. Circular Saw*

Safety Information

• Read all safety warnings and all instructions. Save all warnings and instructions 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
• Keep work area clean and well-lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks that can ignite the dust or fumes.
• Keep children and bystanders away from work area. Distractions can cause you to lose control of the power tool.
• Do not operate power tools while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury.
• Use personal protective equipment. Always wear eye protection. Dust mask, non-slip safety shoes, hard hat, hearing protection, and gloves are also recommended. The type of personal protective equipment required will vary depending on the type of work being performed.
• Prevent unintentional starting. Ensure the switch is in the "OFF" position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
• Remove adjusting keys or wrenches 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.
• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts. Loose clothing, jewelry, or hair can be caught in moving parts.
• Use the right tool for the job. Do not force the power tool to do a job it was not designed to do.
• Use the correct accessories. Only use accessories that are designed for use with your specific power tool. Use of improper accessories may result in serious personal injury.
• Do not abuse the power tool. Never use the power tool with a damaged switch. If the power tool is malfunctioning, or has been dropped or damaged, take it to a qualified service technician for repair. A faulty power tool is dangerous to use.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
• Use the power tool, accessories, and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be done. Use of the power tool for operations different from those intended could result in a hazardous situation.

Before Use

• Read and understand all instructions.
• Make sure the power tool is properly assembled.
• Check the condition of the power tool and accessories before each use. Replace any damaged or worn parts.
• Inspect the work area for any hazards.
• Make sure the work surface is level and stable.
• Secure the workpiece to a stable platform.
• Use the correct blade for the material you are cutting.
• Adjust the cutting depth to the thickness of the workpiece.
• Wear safety glasses and other personal protective equipment.

Troubleshooting

• The power tool does not turn on.
  • Make sure the battery is properly inserted.
  • Make sure the switch is in the "ON" position.
  • Check the circuit breaker or fuse.
• The power tool cuts slowly or unevenly.
  • Make sure the blade is sharp and properly aligned.
  • Check the condition of the motor.
• The power tool vibrates excessively.
  • Make sure the blade is properly balanced.
  • Check the condition of the motor mounts.
• The power tool makes a strange noise.
  • Stop using the power tool immediately and have it serviced by a qualified technician.

Maintenance

• Clean the power tool after each use.
• Wipe the power tool with a damp cloth.
• Do not use harsh chemicals or solvents to clean the power tool.
• Inspect the power tool for any damage after each use.
• Replace any damaged or worn parts.
• Store the power tool in a cool, dry place.

Warranty

This DeWalt product is warranted to the original purchaser to be free from defects in material and workmanship for a period of three (3) years from the date of purchase. If this product fails due to a defect in material or workmanship within the warranty period, DeWalt will repair or replace the product at no charge