1. Introduction
This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of the Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser. Please read this manual thoroughly before using the product to ensure proper handling and to prevent injury or damage.
The Hilti HDE 500-A22 is a 22V cordless adhesive mortar dispenser designed for efficient and precise application of adhesive mortar. Its features include impressive operating time, capability for injection at low temperatures, a dose adjustment button for controlled dispensing, and an automatic pressure release system to minimize mortar waste.
2. Safety Information
Always observe the following safety precautions when operating the Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser:
- Read all instructions: Familiarize yourself with the tool's functions and safety guidelines before use.
- Wear appropriate personal protective equipment (PPE): This includes safety glasses, gloves, and other gear as required by the adhesive mortar manufacturer.
- Keep work area clean and well-lit: Cluttered or dark areas invite accidents.
- Do not operate in explosive atmospheres: Do not use the tool in the presence of flammable liquids, gases, or dust.
- Secure the workpiece: Ensure the material you are working on is stable.
- Avoid unintentional starting: Ensure the switch is in the off-position before connecting to a battery pack, picking up or carrying the tool.
- Maintain the tool: Keep cutting tools sharp and clean for better and safer performance.
- Use the correct tool for the application: Do not force a small tool or attachment to do the job of a heavy-duty tool.
- Battery safety: Use only specified battery packs. Do not expose battery packs to heat or fire.
3. Product Overview and Components
The Hilti HDE 500-A22 is designed for professional use, offering cordless convenience and precise control for adhesive mortar applications. Key components include the motor housing, trigger, battery interface, and the dispensing mechanism for foil packs.

Figure 1: Packaging box for the Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser. The box displays the product name, brand, and an image of the dispenser, indicating its cordless nature and compatibility with Hilti adhesive systems.

Figure 2: The Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser. This image shows the complete tool from a side angle, highlighting its ergonomic design, trigger, and the barrel for adhesive cartridges. The Hilti logo and model number are visible on the side.
4. Setup
Proper setup ensures optimal performance and safety.
4.1 Battery Installation
- Ensure the dispenser is switched off.
- Align the battery pack with the battery interface at the base of the dispenser handle.
- Slide the battery pack into place until it clicks securely.
- To remove, press the battery release button and slide the battery out.
Note: Batteries are not included with the dispenser and must be purchased separately.
4.2 Loading Adhesive Foil Packs
- Ensure the dispenser is switched off and the pressure release mechanism is disengaged.
- Open the front cap of the dispenser barrel.
- Insert the adhesive foil pack (e.g., 500 ml) into the barrel, ensuring it is seated correctly.
- Close the front cap securely.
- Attach the appropriate mixing nozzle to the foil pack.

Figure 3: The Hilti HDE 500-A22 dispenser with its barrel open, revealing the internal mechanism for holding and pushing adhesive foil packs. This view illustrates how the adhesive cartridge is loaded into the tool.

Figure 4: The Hilti HDE 500-A22 dispenser shown alongside an adhesive foil pack. This image demonstrates the type of adhesive container compatible with the dispenser, ready for insertion into the tool's barrel.
5. Operating Instructions
5.1 Powering On and Off
The dispenser is powered on when a charged battery is inserted and the trigger is pressed. Release the trigger to stop dispensing.
5.2 Dose Adjustment
The HDE 500-A22 features a dose adjustment button, typically located near the handle or on the main body. Use this button to precisely control the amount of adhesive dispensed per trigger pull. Refer to the markings on the tool for specific settings.
5.3 Dispensing Adhesive Mortar
- Ensure the adhesive foil pack is correctly loaded and the nozzle is attached.
- Position the nozzle at the desired application point.
- Press the trigger to begin dispensing. Adjust the pressure and speed as needed for a consistent bead.
- Release the trigger to stop dispensing. The automatic pressure release system will retract the plunger slightly to prevent dripping.
5.4 Working in Low Temperatures
The HDE 500-A22 is designed to handle injection even at low temperatures. However, always consult the adhesive mortar manufacturer's guidelines for specific temperature ranges and curing times.

Figure 5: The Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser viewed from the side, showing the battery slot at the base of the handle. This image highlights the cordless nature of the tool and where the 22V battery would be inserted.
6. Maintenance
Regular maintenance ensures the longevity and reliable operation of your Hilti HDE 500-A22 dispenser.
- Cleaning: After each use, clean any adhesive residue from the dispenser barrel and nozzle attachment area. Use a damp cloth for the exterior. Do not use harsh solvents that may damage plastic components.
- Storage: Store the dispenser in a dry, clean place, away from direct sunlight and extreme temperatures. Remove the battery pack before storage.
- Inspection: Periodically inspect the dispenser for any signs of wear, damage, or loose components. If any damage is found, do not use the tool and contact Hilti service.
7. Troubleshooting
This section addresses common issues you might encounter with the HDE 500-A22 dispenser.
| Problem | Possible Cause | Solution |
|---|---|---|
| Dispenser does not operate | Battery not charged or improperly inserted. | Ensure battery is fully charged and correctly seated. |
| Adhesive not dispensing or flow is weak | Empty foil pack; clogged nozzle; incorrect dose setting. | Replace foil pack; clear or replace nozzle; adjust dose setting. |
| Excessive dripping after dispensing | Automatic pressure release malfunction; incorrect nozzle. | Ensure pressure release mechanism is clean; use appropriate nozzle. If issue persists, contact service. |
| Tool overheats | Continuous heavy use; blocked ventilation. | Allow tool to cool down; ensure ventilation slots are clear. |
If you encounter problems not listed here or if solutions do not resolve the issue, please contact Hilti customer service.
8. Specifications
- Model: HDE 500-A22
- Manufacturer: Hilti
- Power Source: 22V Battery (not included)
- ASIN: B07BFGNBDL
- Date First Available: March 13, 2018
- Batteries Included?: No
- Batteries Required?: No (requires Hilti 22V battery system)
9. Warranty and Support
For warranty information, service, or technical support regarding your Hilti HDE 500-A22 Cordless Adhesive Mortar Dispenser, please refer to the official Hilti website or contact Hilti customer service directly. Keep your purchase receipt for warranty claims.





