1. Product Overview
The Hilti ED 3500-A is a high-performance cordless dispenser designed for efficient application of various sealants and adhesives. This tool combines robust construction with the convenience of a Lithium-Ion battery, providing consistent power and extended run-time for professional applications.

Image 1.1: The Hilti ED 3500-A Cordless Dispenser. This image displays the red and black cordless dispenser, featuring a long cylindrical barrel for sealant cartridges, a trigger handle with a battery pack at the base, and a nozzle at the front. The Hilti logo is visible on the side of the barrel.
1.1 Key Components
- Dispenser Body: Main housing containing the motor and gear mechanism.
- Cartridge Holder: Cylindrical barrel for holding sealant/adhesive cartridges.
- Plunger Rod: Pushes the material out of the cartridge.
- Trigger: Activates the dispensing mechanism.
- Speed Control Dial: Adjusts the dispensing speed.
- Battery Pack: Rechargeable Lithium-Ion battery (2.6Ah).
- Battery Release Button: For detaching the battery.
2. Safety Instructions
Read and understand 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.
2.1 General Power Tool Safety
- Work Area Safety: Keep your work area clean and well-lit. Cluttered or dark areas invite accidents.
- Electrical Safety: Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
- Personal Safety: Always wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and respiratory protection when handling chemicals.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. It will do the job better and safer at the rate for which it was designed.
- Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
- 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. Setup
Proper setup ensures safe and efficient operation of your Hilti ED 3500-A dispenser.
3.1 Battery Installation
- Ensure the battery is fully charged using a compatible Hilti charger.
- Align the battery pack with the receptacle at the base of the dispenser handle.
- Slide the battery into place until it clicks securely. Ensure it is firmly seated.
- To remove, press the battery release button and slide the battery out.
3.2 Cartridge Loading
- Ensure the dispenser is switched off and the battery is removed for safety.
- Retract the plunger rod fully by pressing the release lever and pulling the rod back.
- Prepare the sealant/adhesive cartridge according to its manufacturer's instructions (e.g., cut the nozzle, puncture the inner seal).
- Insert the cartridge into the cartridge holder, nozzle first, until it is fully seated.
- Advance the plunger rod until it makes contact with the back of the cartridge.
4. Operating Instructions
Follow these steps for effective and controlled dispensing.
4.1 Dispensing Material
- Ensure the battery is installed and the cartridge is loaded.
- Set the desired dispensing speed using the speed control dial. Start with a lower setting and adjust as needed.
- Position the nozzle at the starting point of your application.
- Gently press the trigger to begin dispensing. The material will flow out of the nozzle.
- Maintain a steady pace and angle for an even bead.
- Release the trigger to stop dispensing. The automatic drip-stop feature will help prevent material overflow.
4.2 Speed Control
The speed control dial allows you to adjust the flow rate of the material. Higher settings provide faster dispensing, suitable for large gaps or quick application. Lower settings offer more precision and control for intricate work or delicate materials.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Hilti ED 3500-A dispenser.
5.1 Cleaning
- After each use, remove the cartridge and clean any excess material from the plunger rod, cartridge holder, and nozzle area.
- Use a dry cloth or a cloth lightly dampened with a suitable solvent (check material manufacturer's recommendations) to clean the exterior of the tool.
- Do not immerse the tool in liquids.
5.2 Battery Care and Storage
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not store fully discharged batteries for extended periods. Recharge them periodically.
- Avoid dropping or physically damaging the battery packs.
5.3 General Inspection
- Periodically inspect the tool for any signs of damage, wear, or loose components.
- Ensure the plunger rod moves freely and is not bent or obstructed.
- If any damage is found, do not use the tool and contact Hilti service for repair.
6. Troubleshooting
This section addresses common issues you might encounter with your dispenser.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start | Battery not installed correctly Battery discharged Tool malfunction | Ensure battery is clicked into place Charge the battery Contact Hilti service |
| Material flow is weak or inconsistent | Low battery charge Nozzle clogged Cartridge seal not fully punctured Speed setting too low | Recharge battery Clean or replace nozzle Ensure cartridge seal is fully open Increase speed setting |
| Material continues to drip after trigger release | Automatic drip-stop not functioning Material too fluid | Contact Hilti service Allow material to cure slightly or use a different material if possible |
| Plunger rod does not retract | Release lever not pressed Obstruction | Ensure release lever is fully depressed Check for debris or damage around the rod |
7. Specifications
- Model: ED 3500-A
- Brand: HILTI
- Battery Type: Lithium Ion
- Battery Capacity: 2.6 Amp Hours
- Reusability: Rechargeable
- Unit Count: 1 Count
- ASIN: B007A0RNEE
- Date First Available: December 5, 2012
8. Warranty and Support
Hilti products are designed for durability and performance. This product typically comes with a manufacturer's warranty. For specific warranty details, including coverage period and terms, please refer to the documentation provided with your purchase or visit the official Hilti website.
8.1 Customer Support
If you encounter any issues not covered in this manual, require technical assistance, or need to arrange for service, please contact Hilti customer support. Contact information can usually be found on the Hilti official website or on your product packaging.
Please have your product model number (ED 3500-A) and serial number ready when contacting support.