Dewalt Dc840: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

DeWalt DC840 Information

The DeWalt DC840 is a 12-volt impact wrench that was discontinued in 2010. It was one of the first impact wrenches to be powered by 12-volt batteries, and it offered a number of features that were not available on other impact wrenches at the time.

Image of DeWalt DC840 impact wrench

Here are some of the key specifications of the DeWalt DC840:

Feature	Specification
Voltage	12V
Max torque	150 ft-lbs
Max speed	3,200 rpm
Impact rate	3,200 impacts per minute
Weight	3.3 lbs
Tool type	Impact wrench
Battery type	NiCd
Chuck size	1/4"

The DeWalt DC840 also had a number of features that made it a popular choice among users, including:

• A lightweight design that made it easy to use for extended periods of time
• A comfortable grip that reduced fatigue
• A belt clip for easy portability
• A variable speed trigger that allowed users to control the amount of torque
• A two-position LED work light that illuminated the work area

The DeWalt DC840 came in a kit that included the impact wrench, two NiCd batteries, a charger, and a carrying case.

What's in the box?

• DeWalt DC840 impact wrench
• 2 NiCd batteries
• Charger
• Carrying case

The DeWalt DC840 is no longer in production, but it can still be found on eBay and other online marketplaces. It is a discontinued product, so it may be difficult to find one in good condition. However, if you can find one, it is a great option for users who need a lightweight and powerful impact wrench.

Here are some of the pros and cons of the DeWalt DC840:

Pros:

• Lightweight design
• Comfortable grip
• Belt clip
• Variable speed trigger
• Two-position LED work light

Cons:

• No longer in production
• NiCd batteries can be less powerful than newer lithium-ion batteries
• Not as powerful as some newer impact wrenches

Overall, the DeWalt DC840 is a good option for users who need a lightweight and powerful impact wrench. It is no longer in production, but it can still be found on eBay and other online marketplaces. If you can find one in good condition, it is a great value for the price.

DeWalt DC840 Compare with Similar Item

a table comparing the DeWalt DC840 to some similar items:

Feature	DeWalt DC840	Makita XFD07Z	Milwaukee M18 BLPD
Voltage	20V Max	18V	18V
Amps	4.5	5	5
Runtime	2.5 hours	2.5 hours	2.5 hours
Weight	5.6 pounds	5.2 pounds	5.4 pounds
Price	$119	$139	$129

As you can see, the DeWalt DC840 is very similar to the Makita XFD07Z and Milwaukee M18 BLPD. All three tools have a 20V Max or 18V battery, 4.5 or 5 amps of power, and a runtime of 2.5 hours. They also weigh about the same, and are all priced around $120.

The main difference between the three tools is the brand. DeWalt, Makita, and Milwaukee are all well-respected brands of power tools, so you can't go wrong with any of them. However, if you have a preference for one brand over the others, that may be the deciding factor for you.

Ultimately, the best tool for you will depend on your individual needs and preferences. If you're looking for a reliable and powerful cordless drill, any of these three tools would be a great choice.

DeWalt DC840 Pros/Cons and My Thought

a comprehensive summary of the DeWalt DC840 drill, including pros, cons, user reviews, and my thoughts:

Pros:

• Powerful brushless motor delivers up to 1,500 in-lbs of torque
• Compact and lightweight design for easy handling
• Long-lasting battery provides up to 30% more runtime than previous models
• LED work light illuminates the work area
• Keyless chuck makes bit changes quick and easy
• Durable construction with overmolded grip for comfort and control

Cons:

• Pricey
• Light can be dim in some conditions
• Chuck can be a bit stiff

User Reviews:

Overall, user reviews for the DeWalt DC840 drill are positive. Many users praise the drill's power, performance, and battery life. Some users also mention the drill's compact design and lightweight construction as positives. However, a few users have complained about the drill's price and the dimness of the work light.

My Thoughts:

The DeWalt DC840 drill is a powerful and versatile tool that is well-suited for a variety of applications. The brushless motor delivers plenty of power for drilling through tough materials, and the long-lasting battery provides extended runtime. The compact design and lightweight construction make the drill easy to handle, even for extended periods of time. The LED work light is a helpful addition, but it can be dim in some conditions. Overall, I think the DeWalt DC840 drill is a great option for anyone looking for a powerful and reliable drill.

Here are some additional thoughts on the DeWalt DC840 drill:

• The brushless motor is a significant upgrade over the brushed motors found in previous models. Brushless motors are more efficient and durable, which means they can provide more power and runtime.
• The long-lasting battery is another major advantage of the DeWalt DC840 drill. The battery provides up to 30% more runtime than previous models, which means you can work longer without having to recharge.
• The compact design and lightweight construction make the DeWalt DC840 drill easy to handle. This is a major advantage if you plan on using the drill for extended periods of time or for overhead work.
• The LED work light is a helpful addition, but it can be dim in some conditions. If you plan on doing a lot of work in dark or poorly-lit areas, you may want to consider a drill with a brighter work light.

Overall, I think the DeWalt DC840 drill is a great option for anyone looking for a powerful and reliable drill. The brushless motor, long-lasting battery, and compact design make it a top choice for DIYers and professional contractors alike.

DeWalt DC840 Where To Buy

You can buy the DeWalt DC840 impact wrench and spare parts from the following retailers:

• DeWalt Direct: This is the official website of DeWalt, so you can be sure that you are getting genuine parts. They also offer a wide variety of spare parts for the DC840, so you should be able to find everything you need.
• Walmart: Walmart is a major retailer that carries a wide variety of tools and equipment, including the DeWalt DC840 impact wrench. They also often have competitive prices on spare parts.
• Amazon: Amazon is another major retailer that sells a wide variety of products, including the DeWalt DC840 impact wrench and spare parts. They often have competitive prices and a wide selection of products to choose from.
• Best Buy: Best Buy is a major electronics retailer that also carries a wide variety of tools and equipment, including the DeWalt DC840 impact wrench. They often have competitive prices and a convenient in-store pickup option.
• Lowes: Lowe's is a major home improvement retailer that carries a wide variety of tools and equipment, including the DeWalt DC840 impact wrench. They often have competitive prices and a convenient in-store pickup option.
• eBay: eBay is an online auction site where you can often find used or refurbished DeWalt DC840 impact wrenches and spare parts at a discounted price. However, it's important to do your research before buying from eBay to make sure that you are getting a genuine product.

The type of DeWalt DC840 impact wrench you can buy will depend on the retailer. Some retailers may only carry the newer model, while others may carry both the older and newer models. It's important to check the product description carefully before making a purchase to make sure that you are getting the right model for your needs.

The spare parts that are available for the DeWalt DC840 impact wrench will also depend on the retailer. Some retailers may only carry a limited selection of spare parts, while others may carry a wide variety of parts. It's important to check with the retailer to see what spare parts are available before making a purchase.

I hope this helps!

DeWalt DC840 Problems and Solutions

some common issues and problems with the DeWalt DC840 impact wrench, along with their solutions:

• The impact wrench does not work.
  • Check the battery. Make sure that the battery is inserted correctly and that it is fully charged. You can test the battery by inserting it into another DeWalt tool that you know works.
  • Check the trigger switch. The trigger switch may be damaged or malfunctioning. To test the trigger switch, try using a different trigger switch from a known-working DeWalt impact wrench.
  • Check the brushes. The brushes are responsible for transferring power from the motor to the armature. If the brushes are worn out or damaged, they will need to be replaced.
• The impact wrench makes a loud noise.
  • The impact wrench may be overloaded. If you are using the impact wrench on a very tough fastener, it may be overloaded. Try using a lower torque setting or a different tool.
  • The impact wrench may have a damaged bearing. If the bearing is damaged, it will make a loud noise when the impact wrench is operated. The bearing will need to be replaced.
• The impact wrench vibrates excessively.
  • The impact wrench may be unbalanced. If the impact wrench is unbalanced, it will vibrate excessively when it is operated. You can try to balance the impact wrench by adjusting the weights inside of it.
  • The impact wrench may have a damaged bearing. If the bearing is damaged, it will cause the impact wrench to vibrate excessively. The bearing will need to be replaced.

If you have tried the solutions above and your DeWalt DC840 impact wrench is still not working, you may need to take it to a qualified repair technician.

Here are some additional tips for troubleshooting your DeWalt DC840 impact wrench:

• Check the user manual. The user manual will often have troubleshooting tips for common problems.
• Search online forums. There are many online forums where you can ask for help from other DeWalt impact wrench owners.
• Contact DeWalt customer support. DeWalt customer support can often help you troubleshoot your impact wrench over the phone or by email.