1. Introduction
This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your LEHMANN 3-in-1 Electric Corded Leaf Blower, Vacuum, and Shredder. Please read these instructions carefully before using the device to ensure proper function and to prevent injury or damage. Keep this manual in a safe place for future reference.
General Safety Warnings
- Always wear appropriate personal protective equipment (PPE), including eye protection, hearing protection, and gloves, during operation.
- Ensure the power cord is in good condition and positioned to avoid tripping hazards or damage.
- Do not operate the device in wet conditions or near flammable liquids or gases.
- Keep children and bystanders at a safe distance from the operating area.
- Disconnect the device from the power supply before cleaning, maintenance, or when not in use.
2. Product Overview
The LEHMANN LGALB-3540 is a versatile 3-in-1 electric garden tool designed for blowing, vacuuming, and shredding leaves and light garden debris. Its powerful motor and ergonomic design make garden cleanup efficient.
Key Features
- High Power Performance: 3500W motor with air speed up to 270 km/h and air flow of 10 m³/min.
- Versatile 3-in-1 Functionality: Easily switches between blowing, vacuuming, and shredding modes.
- Large Capacity Collection Bag: 40-liter bag reduces the frequency of emptying.
- Ergonomic and Portable Design: Lightweight at 2.6 kg, featuring an ergonomic handle, shoulder strap, and integrated wheels for comfortable use.
- Durable Construction: Made with robust polypropylene and an aluminum motor for extended reliability.
Included Components
- Main Blower/Vacuum Unit
- Suction Tube (for vacuum mode)
- Collection Bag (40L)
- Shoulder Strap
- Wheels (pre-attached or for assembly)
- User Manual (this document)

Figure 2.1: All included components of the device.
3. Setup
Before first use, ensure all components are present and correctly assembled.
Assembly Instructions
- Attach the Suction Tube: Align the suction tube with the main unit's intake port. Push firmly until it clicks into place. Ensure it is securely fastened.
- Install the Collection Bag: Connect the collection bag to the exhaust port of the main unit. Secure the bag's attachment mechanism (e.g., zipper, clip) to prevent debris leakage.
- Attach the Shoulder Strap: If not pre-attached, connect the shoulder strap to the designated attachment points on the main unit. Adjust the strap length for comfortable operation.
- Check Wheels: Verify that the integrated wheels at the end of the tube are securely attached and rotate freely. These assist in maneuvering the device across surfaces.

Figure 3.1: Close-up views of key assembly and control points.

Figure 3.2: Detail of the integrated wheels for easy maneuverability.
4. Operating Instructions
Familiarize yourself with the controls and functions before operating the device.
Mode Selection
The device features a selector switch to change between blowing, vacuuming, and shredding modes. Ensure the device is unplugged before changing modes if it involves reconfiguring components.
Blowing Mode
- Ensure the suction tube is correctly attached and the collection bag is either removed or properly secured if not in use.
- Direct the nozzle towards the debris you wish to move.
- Turn on the device using the power switch.
- Sweep the nozzle back and forth to gather leaves and debris into piles.

Figure 4.1: Operating the device in blowing mode.

Figure 4.2: High-speed blowing action for efficient debris removal.
Vacuuming and Shredding Mode
- Ensure the suction tube is securely attached and the 40-liter collection bag is properly installed.
- Switch the device to vacuum mode. The internal impeller will automatically shred collected debris.
- Slowly move the nozzle over the leaves and debris. The device will draw them in and shred them before depositing them into the collection bag.
- Avoid vacuuming wet leaves, large sticks, stones, or other hard objects, as these can damage the impeller.

Figure 4.3: Visual representation of the vacuum and shredding function.

Figure 4.4: Overview of the device's key features and capabilities.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your device. Always disconnect the power cord before performing any maintenance.
Cleaning the Device
- Wipe the exterior of the device with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Clear any debris from the air vents to prevent overheating.
- Inspect the suction tube and impeller area for any blockages. Remove any lodged debris carefully.
Emptying the Collection Bag
- Empty the 40-liter collection bag regularly, especially when it is full, to maintain vacuuming efficiency and prevent strain on the motor.
- Unzip or unclip the bag from the device and empty its contents into a compost bin or waste receptacle.
- Clean the bag periodically to remove dust and fine debris.

Figure 5.1: The 40-liter collection bag attached to the device.
Storage
Store the device in a dry, well-ventilated area, away from direct sunlight and extreme temperatures. Ensure the power cord is neatly coiled and not kinked.
6. Troubleshooting
If you encounter issues with your device, refer to the table below for common problems and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not start | No power supply Power switch off Overload protection activated | Check power connection and outlet Turn power switch to ON Unplug, wait 5 minutes, then restart |
| Low blowing/suction power | Blocked nozzle/tube Full collection bag Impeller clogged | Clear any blockages Empty collection bag Clean impeller area (ensure device is unplugged) |
| Excessive vibration/noise | Debris in impeller Loose components | Unplug and carefully remove debris from impeller Check all connections and tighten if necessary |
| Leaves not shredding effectively | Impeller worn or clogged Wet leaves | Clean impeller. If worn, contact support for replacement Avoid vacuuming wet leaves |
7. Technical Specifications
| Specification | Value |
|---|---|
| Brand | LEHMANN |
| Model Name | Saltium |
| Model Number | LGALB-3540 |
| Power Source | Corded Electric |
| Voltage | 230 Volts |
| Wattage | 3500 watts |
| Air Flow Rate | 10 Cubic meters per minute |
| Max Air Speed | 270 km/h |
| Max RPM | 15000 Revolutions per minute |
| Noise Level | 106 Decibels |
| Item Weight | 2.6 Kilograms |
| Dimensions (L x W x H) | 123L x 16W x 33H cm |
| Material Type | Polypropylene (PP) |
| Special Features | Leaf vacuum, Lightweight, Portable, Overload protection, Shredder |
8. Warranty and Support
Manufacturer's Warranty
The LEHMANN LGALB-3540 comes with a manufacturer's warranty:
- 1-year warranty for commercial customers.
- 2-year warranty for individual customers.
Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, neglect, accidents, or unauthorized repairs.
Customer Support
For technical assistance, spare parts, or warranty inquiries, please contact LEHMANN customer support through the retailer where the product was purchased or visit the official LEHMANN website for contact information.