HILTI SFH 18
Hilti SFH 18-A CPC Hammer Drill Driver Instruction Manual
Model: SFH 18-A
1. Introduction
This manual provides essential information for the safe and effective operation, setup, and maintenance of your Hilti SFH 18-A CPC Hammer Drill Driver. Please read these instructions carefully before using the tool to ensure proper function and to prevent injury or damage.

Figure 1: The Hilti SFH 18-A CPC Hammer Drill Driver. This image displays the red and black cordless hammer drill driver, featuring a keyless chuck, an auxiliary handle for improved control, and a detachable battery pack at the base.
2. General Safety Instructions
Always observe the following safety precautions when operating the Hilti SFH 18-A CPC Hammer Drill Driver:
- Work Area Safety: Keep your 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: Avoid body contact with earthed or grounded surfaces (e.g., pipes, radiators, ranges, refrigerators). There is an increased risk of electric shock if your body is earthed or grounded.
- Personal Safety: Always wear eye protection. Use hearing protection when operating hammer drills. Wear a dust mask if drilling in dusty conditions. Dress properly; avoid loose clothing or jewelry.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
- Battery Pack Use and Care: Recharge only with the charger specified by the manufacturer. Do not use battery packs with any other power tools.
3. Product Components
The Hilti SFH 18-A CPC Hammer Drill Driver consists of the following main components:
- Keyless Chuck: For quick and easy bit changes.
- Torque/Mode Selector Ring: Adjusts torque settings for driving screws and selects between drilling and hammer drilling modes.
- Speed Selector Switch: Controls the maximum rotational speed.
- Trigger Switch: Activates the tool and provides variable speed control.
- Forward/Reverse Switch: Changes the direction of rotation.
- Auxiliary Handle: Provides additional grip and control, especially during hammer drilling.
- Battery Pack (sold separately or as part of a kit): Provides power to the tool.
- LED Work Light: Illuminates the work area.
4. Setup and Initial Operation
4.1 Battery Installation and Charging
- Ensure the battery pack is fully charged before first use. Refer to your Hilti battery charger manual for specific charging instructions.
- To install the battery, align the battery pack with the receptacle at the base of the drill handle and slide it in until it clicks securely into place.
- To remove the battery, press the release buttons on the sides of the battery pack and slide it out.
4.2 Installing Drill Bits or Accessories
- Ensure the tool is switched off and the forward/reverse switch is in the center (locked) position before changing accessories.
- Twist the front part of the keyless chuck counter-clockwise to open the chuck jaws.
- Insert the drill bit or accessory into the chuck, ensuring it is centered.
- Twist the front part of the chuck clockwise to tighten the jaws firmly around the bit. Hand-tighten only; do not use tools to tighten the chuck.
- The chuck clamping range is 1/16 to 1/2 inch.
5. Operating Instructions
5.1 Selecting Operating Mode and Torque
- Rotate the torque/mode selector ring to choose the desired setting:
- Drilling Mode (Drill Symbol): For drilling into wood, metal, and plastics.
- Hammer Drilling Mode (Hammer Symbol): For drilling into masonry and concrete.
- Screwdriving Mode (Numbered Settings): Select a torque setting from 1 to 15+ (or similar range) for driving screws. Higher numbers indicate higher torque. The 'Drill' symbol often represents the maximum torque setting for screwdriving.
5.2 Adjusting Speed
- The drill features a variable speed trigger. Pressing the trigger further increases the speed.
- A speed selector switch (typically 1 or 2) allows for selection between low-speed/high-torque (1) and high-speed/low-torque (2) applications.
- The maximum rotational speed is 1800 RPM.
5.3 Forward/Reverse Operation
- Push the forward/reverse switch to the left for forward (clockwise) rotation.
- Push the switch to the right for reverse (counter-clockwise) rotation.
- Position the switch in the center to lock the trigger and prevent accidental starting.
5.4 Using the LED Work Light
- The integrated LED light automatically illuminates the work area when the trigger is pressed, improving visibility in dimly lit spaces.
6. Maintenance
6.1 Cleaning
- Regularly clean the tool's ventilation slots to prevent overheating. Use a dry brush or compressed air.
- Wipe the tool housing with a slightly damp cloth. Do not use solvents or abrasive cleaners.
- Keep the chuck jaws clean and free of debris to ensure proper gripping of bits.
6.2 Storage
- Store the tool and battery packs in a dry, cool place, away from direct sunlight and moisture.
- Ensure the battery is partially charged (not fully depleted or fully charged) for long-term storage to prolong its lifespan.
- Store the tool out of reach of children.
7. Troubleshooting
If you encounter issues with your Hilti SFH 18-A CPC Hammer Drill Driver, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start | Battery not charged or improperly inserted; Trigger lock engaged; Tool malfunction. | Check battery charge and reinsert; Disengage trigger lock; Contact Hilti service if problem persists. |
| Reduced power or speed | Low battery charge; Overload; Worn motor brushes (for brushed motor). | Recharge battery; Reduce load; Contact Hilti service for brush replacement. |
| Chuck not holding bit | Chuck not tightened sufficiently; Debris in chuck jaws; Worn chuck. | Ensure chuck is hand-tightened; Clean chuck jaws; Replace chuck if worn. |
| Excessive vibration or noise | Damaged bit; Internal component issue. | Replace damaged bit; Contact Hilti service. |
8. Technical Specifications
The following are the key technical specifications for the Hilti SFH 18-A CPC Hammer Drill Driver:
| Feature | Specification |
|---|---|
| Model | SFH 18-A |
| Power Source | Battery Powered |
| Battery Voltage | 18 Volts |
| Battery Type | Lithium Ion |
| Battery Capacity | 2.6 Amp Hours |
| Chuck Type | Keyless |
| Chuck Size | 1/2 Inch (13 mm) |
| Chuck Clamping Range | 1/16 - 1/2 Inch |
| Maximum Rotational Speed | 1800 RPM |
| Maximum Torque | 487 Inch Pounds |
| Drill Type | Hammer Drill |
| Motor Type | Brushed |
| Product Dimensions (L x W x H) | 8" x 3.6" x 9.2" |
| Item Weight | 3.7 Pounds |
| Color | Black, Red |
| Special Features | Keyless Chuck, LED Light, Variable Speed |
9. Warranty and Support
For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Hilti website. Hilti provides comprehensive customer support for its products.
If you require technical assistance, spare parts, or service, please contact Hilti customer service directly. Ensure you have your product model number (SFH 18-A) and serial number available when contacting support.
You can typically find contact information for Hilti on their official website or in the documentation provided with your tool.
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