1. Introduction
The LEHMANN Haddo Industrial Vacuum Cleaner 2000W is a versatile cleaning device designed for various tasks in industrial settings, workshops, and construction sites. It functions as a wet vacuum, ash vacuum, and dry vacuum, offering comprehensive cleaning capabilities. Equipped with a powerful 2000W motor and an efficient double filtration system, including a washable HEPA filter, it ensures strong suction and reliable impurity retention. Its 20-liter stainless steel tank provides extended operation without frequent emptying, and the integrated blower function adds to its utility for tasks like clearing leaves or inflating items. Mobility is enhanced by wheels, a 1.5m metallic hose, and a 3.5m power cable.
Image 1.1: The LEHMANN Haddo Industrial Vacuum Cleaner in a home setting, demonstrating its compact design and readiness for use.
2. Safety Instructions
Please read all safety warnings and instructions carefully before using this appliance. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
- General Safety: Always disconnect the vacuum cleaner from the power supply before cleaning, servicing, or performing any maintenance. Do not operate the vacuum cleaner with a damaged cord or plug.
- Electrical Safety: Ensure the power supply voltage matches the rating label on the appliance. Do not use the vacuum cleaner in wet conditions or immerse it in water. Keep the power cord away from heat, sharp edges, and moving parts.
- Ash Vacuuming: Only vacuum COLD ASHES. Hot ashes or embers can cause fire and damage the vacuum cleaner. Ensure ashes have been completely extinguished and cooled for at least 24 hours.
- Wet Vacuuming: Remove all dry filters (HEPA and pre-filter) before wet vacuuming. Do not vacuum flammable or combustible liquids.
- Personal Safety: Keep children and pets away from the appliance during operation. Wear appropriate personal protective equipment, such as safety glasses, if necessary.
- Usage Environment: Do not use the vacuum cleaner in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
3. Package Contents
Verify that all items listed below are included in your package. If any parts are missing or damaged, contact customer support.
- LEHMANN Haddo Industrial Vacuum Cleaner Unit
- Flexible Suction Hose (1.5m)
- Power Cable (3.5m)
- Washable HEPA Filter
- Pre-filter / Foam Filter (for wet vacuuming)
- Floor Nozzle
- Crevice Tool / Aluminum Nozzles (2 pieces)
- Extension Tubes (Plastic, 3 sections)
- Wheels (4 pieces)
Image 3.1: All components included with the LEHMANN Haddo Industrial Vacuum Cleaner.
4. Setup
Follow these steps to assemble your vacuum cleaner before first use:
- Attach Wheels: Turn the tank upside down. Insert the four wheels into the designated slots on the base of the tank until they click into place.
- Install Filters:
- For dry vacuuming (including ash): Place the pre-filter (if provided) over the motor unit, then securely attach the HEPA filter. Ensure it is properly seated to prevent dust from entering the motor.
- For wet vacuuming: Remove the HEPA filter. Only use the foam filter (if provided) for wet applications.
- Secure Motor Unit: Place the motor unit (lid) onto the tank. Fasten the metal clips on both sides of the tank to secure the lid firmly.
- Connect Hose: Insert one end of the flexible suction hose into the suction inlet on the front of the motor unit. Twist clockwise to lock it in place.
- Attach Accessories: Connect the desired extension tubes and nozzle (floor nozzle, crevice tool) to the other end of the flexible hose.
Image 4.1: Visual guide for filter installation, hose connection, and securing the tank.
5. Operating Instructions
The LEHMANN Haddo vacuum cleaner offers multiple operating modes:
5.1. Dry Vacuuming
- Ensure the HEPA filter is correctly installed.
- Connect the power cable to a suitable electrical outlet (230V).
- Press the ON/OFF switch located on the top of the motor unit to start the vacuum.
- Guide the nozzle over the dry debris or dust to be vacuumed.
- After use, switch off the vacuum and unplug it from the power supply.
5.2. Ash Vacuuming
Important: Only vacuum COLD ASHES. Vacuuming hot ashes can cause severe damage to the appliance and pose a fire hazard.
- Ensure ashes are completely cold (wait at least 24 hours after a fire).
- Use the appropriate nozzle (e.g., crevice tool or aluminum nozzle) for ash collection.
- Proceed with vacuuming as described for dry vacuuming.
- Regularly check and empty the tank, as ash can quickly fill the capacity.
Image 5.1: The vacuum cleaner performing various cleaning tasks, including ash removal.
5.3. Wet Vacuuming
- Remove the HEPA filter. Install the foam filter (if provided) for wet applications.
- Connect the power cable.
- Switch on the vacuum.
- Vacuum liquids. The float mechanism inside the tank will automatically stop suction when the tank is full to prevent overflow.
- After the float stops suction, switch off the vacuum, unplug it, and empty the tank immediately.
5.4. Blower Function
The vacuum cleaner can also be used as a blower for clearing leaves or inflating items.
- Disconnect the suction hose from the suction inlet.
- Connect the hose to the exhaust port located on the top of the motor unit.
- Connect the power cable and switch on the vacuum. Air will now be expelled through the hose.
- Direct the airflow as needed.
Image 5.2: Illustration of the blower function setup.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your vacuum cleaner.
6.1. Emptying the Tank
- Switch off the vacuum cleaner and unplug it from the power supply.
- Unfasten the metal clips on the sides of the tank and carefully lift off the motor unit.
- Remove any filters.
- Empty the contents of the tank into an appropriate waste receptacle.
- Clean the inside of the tank with a damp cloth if necessary.
6.2. Cleaning Filters
The HEPA filter is washable. Clean it regularly to maintain suction power.
- Remove the HEPA filter from the motor unit.
- Gently tap the filter to dislodge loose dust and debris.
- Rinse the HEPA filter under cold running water until the water runs clear. Do not use hot water or detergents.
- Allow the filter to air dry completely (at least 24 hours) before re-installing it. Do not use the vacuum with a wet filter.
- If using a foam filter for wet vacuuming, rinse it with water and allow it to air dry.
Image 6.1: Detail of the HEPA filter, emphasizing its importance for clean air.
7. Troubleshooting
If you encounter issues with your vacuum cleaner, refer to the following table for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Vacuum does not turn on | No power supply Damaged power cord/plug | Check power connection and outlet Inspect cord/plug for damage; contact service if damaged |
| Loss of suction power | Full tank Clogged filter Blocked hose or nozzle | Empty the tank Clean or replace the filter Remove any blockages from hose/nozzle |
| Motor overheats / Vacuum shuts off | Clogged filter Blocked airflow Prolonged use | Clean or replace the filter Check for and remove blockages Allow the vacuum to cool down before resuming use |
| Water leaks during wet vacuuming | Tank is full Motor unit not properly sealed Dry filter still installed | Empty the tank Ensure clips are fastened and lid is seated correctly Remove HEPA filter; use foam filter for wet applications |
| Excessive noise | Normal for industrial vacuum Blockage in hose/nozzle Loose parts | This model operates at 82 dB Check for and remove blockages Inspect for any loose components and secure them |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | LEHMANN |
| Model Number | LTOVI-1220 |
| Power | 2000 Watts |
| Capacity | 20 Liters |
| Dimensions (L x W x H) | 33 x 33 x 39 cm |
| Weight | 4.7 Kilograms |
| Material | Metal, Plastic |
| Noise Level | 82 Decibels |
| Filter Type | HEPA, Washable |
| Special Features | Washable Filter, HEPA, Wheels, Blower Function |
| Power Source | Corded Electric |
| Voltage | 230 Volts |
9. Warranty & Support
This LEHMANN Haddo Industrial Vacuum Cleaner comes with a standard manufacturer's warranty. For specific warranty details, including duration and coverage, please refer to the warranty card included in your product packaging or contact LEHMANN customer support directly.
For technical assistance, spare parts, or any other inquiries, please visit the official LEHMANN website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.