1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Crown CT18182 SDS Plus Rotary Hammer. Please read this manual thoroughly before using the tool and keep it for future reference. Proper use and maintenance will ensure optimal performance and extend the lifespan of your rotary hammer.
2. Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Keep this manual handy for quick reference.
General Power Tool Safety Warnings:
- Work Area Safety: Keep the 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.
- Electrical Safety: Power tool plugs must match the outlet. Never modify the plug in any way. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators.
- Personal Safety: Stay alert, watch what you are doing, and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol, or medication. Always wear eye protection. Use dust mask, non-skid safety shoes, hard hat, or hearing protection for appropriate conditions.
- Power Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the plug from the power source before making any adjustments, changing accessories, or storing power tools.
- Service: Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
3. Product Overview
The Crown CT18182 is an 800W SDS Plus rotary hammer designed for drilling, hammer drilling, and chiseling in various materials. Familiarize yourself with its components before operation.

Figure 1: Crown CT18182 Rotary Hammer with included accessories, including various drill bits, chisels, and a chuck adapter.
Key Components:
- SDS Plus Chuck: For quick and secure bit changes.
- Mode Selector Switch: Allows selection between drilling, hammer drilling, and chiseling functions.
- Auxiliary Handle: Provides additional control and stability during operation.
- Depth Gauge: For precise drilling depth control.
- Trigger Switch: Activates the tool.
- Lock-on Button: For continuous operation.

Figure 2: Close-up view of the mode selector switch on the Crown CT18182, showing icons for drilling, hammer drilling, and chiseling modes.
4. Setup
4.1 Attaching the Auxiliary Handle:
- Loosen the auxiliary handle by rotating it counter-clockwise.
- Slide the handle onto the tool's barrel to the desired position.
- Rotate the handle clockwise to tighten it securely.
4.2 Installing SDS Plus Bits:
- Clean the shank of the SDS Plus bit.
- Pull back the chuck collar and insert the bit into the chuck until it clicks into place.
- Release the chuck collar. Pull on the bit to ensure it is securely locked. A slight axial movement of the bit is normal for SDS Plus systems.
4.3 Installing the Depth Gauge:
- Insert the depth gauge into the hole on the auxiliary handle.
- Adjust the depth gauge to the desired drilling depth.
- Tighten the auxiliary handle to secure the depth gauge.
5. Operating Instructions
5.1 Selecting Operating Mode:
Rotate the mode selector switch to choose the desired function:
- Drilling Mode (Drill icon): For drilling in wood, metal, and plastic without hammer action. Use with a chuck adapter and standard drill bits.
- Hammer Drilling Mode (Drill and Hammer icon): For drilling in concrete, masonry, and stone. Use with SDS Plus hammer drill bits.
- Chiseling Mode (Chisel icon): For light chiseling, chipping, or demolition work. Use with SDS Plus chisels.
Caution: Never change the operating mode while the tool is running.
5.2 Starting and Stopping the Tool:
- To Start: Press the trigger switch.
- For Continuous Operation: Press the trigger switch and then press the lock-on button.
- To Stop (from continuous operation): Press the trigger switch again.
5.3 General Operation Tips:
- Always hold the tool firmly with both hands.
- Apply steady, even pressure. Do not force the tool.
- For hammer drilling, allow the tool's hammer action to do the work.
- When chiseling, guide the chisel along the desired line.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your Crown rotary hammer.
6.1 Cleaning:
- Always disconnect the tool from the power supply before cleaning.
- Clean the ventilation slots regularly to prevent overheating. Use a soft brush or compressed air.
- Wipe the tool housing with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Keep the SDS Plus chuck clean and free of dust and debris.
6.2 Lubrication:
The internal components are factory-lubricated. For optimal performance, periodically apply a small amount of grease to the SDS Plus bit shank before insertion into the chuck.
6.3 Storage:
Store the tool in a dry, secure place, out of reach of children. If storing for extended periods, ensure it is clean and free of debris. The included carrying case (Figure 3) is ideal for storage and transport.

Figure 3: The durable carrying case provided with the Crown CT18182 Rotary Hammer, designed for secure storage and transport.
7. Troubleshooting
This section addresses common issues you might encounter with your rotary hammer.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | No power supply. Faulty power cord/plug. Trigger switch malfunction. | Check power outlet and connections. Inspect cord for damage; replace if necessary. Contact authorized service center. |
| Reduced drilling/hammering performance. | Worn drill bit/chisel. Clogged ventilation slots. Internal wear. | Replace with a sharp, appropriate bit. Clean ventilation slots. Contact authorized service center. |
| Excessive vibration. | Loose bit. Damaged auxiliary handle. Internal component issue. | Ensure bit is correctly seated in chuck. Check and tighten auxiliary handle. Discontinue use and contact service center. |
For issues not listed here or if solutions do not resolve the problem, please contact a qualified service technician.
8. Specifications
Technical data for the Crown CT18182 SDS Plus Rotary Hammer.
| Feature | Value |
|---|---|
| Model Number | CT18182 |
| Brand | Crown |
| Power Input | 800 Watts |
| Voltage | 4 Volts (Note: This value appears unusually low for a rotary hammer and may refer to a specific internal component or be a data entry error. Standard rotary hammers typically operate on 120V/240V AC.) |
| Chuck Type | SDS Plus |
| Drilling Capacity (Wood) | 0.5 Inches (approx. 12.7 mm) |
| Product Dimensions | 10 x 20 x 37 cm |
| Item Weight | 209 g (Note: This weight is extremely low for a rotary hammer and may refer to a component or be a data entry error. Actual tool weight would typically be several kilograms.) |
| Power Source | AC |

Figure 4: Diagram illustrating the approximate dimensions of the Crown CT18182 Rotary Hammer, showing a height of 10 inches (24 cm).
Note: Specifications are subject to change without notice for product improvement.
9. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact Crown customer service directly.
Extended warranty options may be available from third-party providers. For example, 1-Year and 2-Year Extended Warranties by Salama Care were noted as available at the time of purchase.
For service or technical assistance, please contact an authorized Crown service center.







