Introduction
This instruction manual provides comprehensive guidance for the installation and maintenance of the HOBOT LEGEE-668/669/688 Technique Pack replacement parts. This pack is designed to ensure the continued optimal performance of your HOBOT LEGEE robot vacuum cleaner by replacing essential wear-and-tear components.
Regular replacement of these parts is crucial for maintaining cleaning efficiency, air quality, and the longevity of your device. Please read these instructions carefully before proceeding with any replacement or maintenance.
Product Overview
The HOBOT LEGEE-668/669/688 Technique Pack includes the following components:
- 3 x Side Brushes
- 3 x High-Efficiency Filters
- 4 x Spray Nozzles
- 1 x Screen Filter

Image 1.1: The retail packaging for the HOBOT LEGEE-668/669/688 Technique Pack, showing the front and back of the box with contents listed.
Component Details and Installation
1. Side Brushes
The side brushes sweep debris from edges and corners into the robot's cleaning path. They are designed to wear over time and require periodic replacement.

Image 2.1: Three replacement side brushes for HOBOT LEGEE robot vacuums, featuring blue central hubs and white bristles.
Installation Instructions:
- Turn off your HOBOT LEGEE robot vacuum and place it upside down on a flat, stable surface.
- Locate the existing side brushes. They are typically held in place by a screw or a snap-on mechanism.
- If secured by a screw, use a screwdriver to remove the screw and then gently pull off the old brush.
- Align the new side brush with the brush post on the robot. Ensure the brush is correctly oriented.
- Press the new brush firmly into place or secure it with the screw, ensuring it is snug but can still rotate freely.
- Repeat the process for all side brushes.
2. High-Efficiency Filters
The high-efficiency filters capture fine dust particles and allergens, preventing them from being released back into the air. Clogged filters reduce suction power and air quality.

Image 2.2: Three replacement high-efficiency filters, rectangular in shape with a pleated filter material, designed for HOBOT LEGEE robot vacuums.
Installation Instructions:
- Open the dustbin compartment of your HOBOT LEGEE robot vacuum. Refer to your robot's main user manual for specific instructions on accessing the dustbin.
- Remove the dustbin from the robot.
- Locate the filter housing within the dustbin. Carefully remove the old high-efficiency filter.
- Insert the new high-efficiency filter into the filter housing, ensuring it fits snugly and creates a proper seal.
- Close the dustbin compartment and reinsert the dustbin into the robot until it clicks into place.
3. Spray Nozzles and Screen Filter
The spray nozzles are responsible for dispensing water onto the floor for mopping. The screen filter prevents debris from clogging the water tank and nozzles, ensuring consistent water flow.

Image 2.3: A blue plastic component, which serves as a housing or frame for the spray nozzles and screen filter assembly within the HOBOT LEGEE robot vacuum.
Installation Instructions:
- Turn off your HOBOT LEGEE robot vacuum.
- Access the water tank and mopping module area. Consult your robot's main user manual for precise location and removal instructions.
- Carefully detach the existing spray nozzle assembly or screen filter. This may involve unclipping or unscrewing components.
- Replace the old spray nozzles with the new ones. Ensure they are securely fitted into their respective ports.
- Replace the old screen filter with the new one, ensuring it is properly seated to prevent debris from entering the water system.
- Reassemble the water tank and mopping module, ensuring all connections are secure.
Maintenance
Regular maintenance of these replacement parts extends their lifespan and ensures optimal cleaning performance.
- Side Brushes: Inspect weekly for tangled hair or debris. Clean as needed. Replace every 3-6 months, or sooner if visibly worn or damaged.
- High-Efficiency Filters: Tap out dust after each cleaning cycle. Do not wash with water unless specified by the main robot manual. Replace every 2-3 months, or more frequently if you have pets or experience reduced suction.
- Spray Nozzles: Check periodically for blockages. If water flow is inconsistent, gently clean the nozzle openings with a small brush or pin.
- Screen Filter: Rinse the screen filter under running water to remove accumulated debris. Ensure it is completely dry before reinstallation. Replace if tears or significant blockages are present.
Troubleshooting
If you encounter issues after replacing parts, consider the following:
- Side Brushes Not Spinning: Ensure the brush is securely attached and the screw (if applicable) is tightened. Check for any hair or debris tangled around the brush post.
- Reduced Suction Power: This is often caused by a clogged high-efficiency filter. Ensure the new filter is correctly installed and not obstructed. Check the dustbin for overfilling.
- Inconsistent Water Spray/No Mopping: Verify that the spray nozzles are clear of blockages and correctly installed. Check the screen filter for debris. Ensure the water tank is filled and properly seated.
- Parts Not Fitting: Double-check that you have the correct replacement parts for your specific HOBOT LEGEE model (668, 669, or 688).
For further assistance, refer to your HOBOT LEGEE robot vacuum's main user manual or contact HOBOT customer support.
Specifications
| Component | Quantity |
|---|---|
| Side Brushes | 3 pcs |
| High-Efficiency Filters | 3 pcs |
| Spray Nozzles | 4 pcs |
| Screen Filter | 1 pc |
Package Dimensions: 7.48 x 4.76 x 1.77 inches
Item Weight: 3.03 ounces
Compatible Models: HOBOT LEGEE-668, HOBOT LEGEE-669, HOBOT LEGEE-688
Support and Warranty
For technical support, warranty information, or to purchase additional replacement parts, please visit the official HOBOT website or contact their customer service department. Refer to your original HOBOT LEGEE robot vacuum manual for specific warranty details pertaining to the main device.
HOBOT Official Website: www.hobot.com.tw
Always use genuine HOBOT replacement parts to ensure compatibility and maintain product warranty.





