Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your DEWALT DCH293B 20V MAX* XR Brushless 1-1/8-inch Rotary Hammer Drill. This high-performance tool features a DEWALT brushless motor and a durable German-engineered mechanism, delivering 3.5 joules of impact energy. Its balanced design, SHOCKS Active Vibration Control technology, and extended run time make it suitable for demanding tasks, including large diameter hole drilling in concrete. The patented E-Clutch system enhances user control in bind-up situations, minimizing sudden torque reaction. The DCH293B is also designed to be compatible with the D25304DH Dust Extraction system.
General Safety Information
WARNING: Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.
- Always wear appropriate personal protective equipment, including eye protection, hearing protection, and gloves.
- Ensure the work area is 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.
- Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
- Avoid unintentional starting. Ensure the switch is in the off-position before connecting to a battery pack, picking up, or carrying the tool.
- Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
- Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the power tool’s operation.
- Use the power tool, accessories, and tool bits in accordance with these instructions, taking into account the working conditions and the work to be performed.
Product Overview
The DEWALT DCH293B Rotary Hammer Drill is designed for heavy-duty drilling and chipping applications. Its L-shape design provides improved balance and control during use.
Key Features:
- Brushless Motor: Provides extended runtime and durability.
- 3.5 Joules of Impact Energy: Delivers powerful drilling performance.
- E-Clutch System: Offers enhanced control in bind-up situations, reducing sudden torque reaction.
- SHOCKS Active Vibration Control: Minimizes vibration felt by the user at the handles for improved comfort and control.
- Retractable Utility Hook: For convenient hanging and storage.
- Dust Management Ready: Compatible with the D25304DH Dust Extraction system.
Setup
Battery Installation
- Ensure the tool is switched off.
- Align the battery pack with the battery port on the tool.
- Slide the battery pack into the tool until it clicks securely into place.
- To remove, press the release button on the battery pack and slide it out.
SDS Plus Bit Installation
The DCH293B uses SDS Plus drill bits, which feature a specific shank design for quick, tool-free insertion and removal.
- Clean the shank of the SDS Plus drill bit.
- Pull back the chuck collar on the front of the drill.
- Insert the SDS Plus bit into the chuck until it stops.
- Release the chuck collar. The bit should be held securely but will have a slight amount of play, which is normal for SDS Plus systems.
- To remove, pull back the chuck collar and pull the bit out.
Adjusting the Depth Rod
The depth rod allows for precise control over drilling depth.
- Loosen the clamp on the auxiliary handle that holds the depth rod.
- Adjust the depth rod to the desired measurement. The rod features markings for both inches and centimeters.
- Tighten the clamp to secure the depth rod in position.
Operating Instructions
Selecting Operating Mode
The DCH293B offers multiple operating modes via a selector switch:
- Rotary Drilling Mode: For drilling into wood, metal, or plastic without hammer action.
- Hammer Drilling Mode: For drilling into masonry, concrete, and stone with both rotation and hammer action.
- Chipping Mode: For light chiseling and chipping applications without rotation.
Rotate the mode selector switch to the desired icon for your task.
Drilling into Concrete
When drilling into concrete, ensure the tool is set to Hammer Drilling Mode. Apply firm, steady pressure and allow the tool to do the work. The SHOCKS Active Vibration Control system will help reduce user fatigue.
E-Clutch System
The patented E-Clutch system provides enhanced control by detecting bind-up situations and automatically shutting down the motor to reduce sudden torque reaction. This feature helps protect the user from potential injury.
Dust Extraction (Optional)
For applications generating significant dust, attach the compatible DEWALT D25304DH Dust Extraction system. This system helps maintain a cleaner work environment and reduces airborne dust exposure.
Maintenance
- Cleaning: Regularly clean the tool with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Keep ventilation openings clear of dust and debris.
- Lubrication: Refer to the detailed service manual for specific lubrication requirements.
- Inspection: Periodically inspect the tool for any damage, loose fasteners, or worn parts. Replace damaged parts immediately.
- Brushless Motor: The brushless motor requires no brush replacement, reducing maintenance needs.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start | Battery not charged or improperly inserted; Faulty switch | Charge battery, ensure proper insertion; Contact service center |
| Reduced drilling performance | Worn drill bit; Incorrect mode selected; Overheating | Replace drill bit; Select correct mode (Hammer Drilling); Allow tool to cool |
| Excessive vibration | Worn bit; Tool malfunction | Replace bit; The SHOCKS system should minimize vibration, if excessive, contact service. |
| Tool stops during operation (E-Clutch activation) | Bit bind-up in material | Release trigger, clear obstruction, restart drilling. Adjust technique if frequent. |
Specifications
| Feature | Specification |
|---|---|
| Brand | DEWALT |
| Model Number | DCH293B |
| Power Source | Battery Powered (20V Max) |
| Maximum Rotational Speed | 1000 RPM |
| Speed | 4500 RPM (Hammering) |
| Impact Energy | 3.5 Joules |
| Maximum Chuck Size | 20 Millimeters (1-1/8 inch) |
| Drilling Capacity Wood | 1.13 Inches |
| Drilling Capacity Metal | 13 Millimeters |
| Item Weight | 8.69 pounds (3.95 Kilograms) |
| Product Dimensions | 15.3"L x 4"W x 10.6"H |
| Battery Cell Type | Lithium Ion |
Warranty and Support
Your DEWALT DCH293B Rotary Hammer Drill is covered by a 3-year limited warranty. For detailed warranty terms, conditions, and to register your product, please visit the official DEWALT website or contact their customer support.
For technical assistance, spare parts, or service inquiries, please refer to the contact information provided on the DEWALT official website or your product packaging. Always use genuine DEWALT replacement parts to ensure product integrity and safety.
Additional Resources
For further information and instructional videos, please visit the DEWALT Store on Amazon.
Note: Video content could not be embedded as specific video URLs and metadata were not provided in the product data. If available, relevant seller-created videos would be included here with descriptive text.
