Maxi-Cosi SW128HCS
Maxi-Cosi Cassia Smart Baby Swing Instruction Manual
Model: SW128HCS
1. Introduction
The Maxi-Cosi Cassia Smart Baby Swing is designed to provide a soothing and engaging environment for your infant. Featuring an automatic motion detector, multiple swing speeds, melodies, and a 360-degree rotating seat, it offers convenience and comfort for both baby and parent. This manual provides essential information for the safe and proper use, assembly, and maintenance of your Cassia Smart Baby Swing.
Important Safety Information
- Always read all instructions before use.
- Never leave your child unattended in the swing.
- Do not use this product if it is damaged or broken.
- Ensure all parts are securely fastened before placing a child in the swing.
- Never let babies sleep in rockers, bouncers, or swings.
- Maximum weight capacity: 20 lbs (9 kg).
2. Setup and Assembly
Follow these steps to assemble your Maxi-Cosi Cassia Smart Baby Swing. For a visual guide, refer to the product overview video below.
Video: Maxi-Cosi Cassia Swing Product Overview. This video demonstrates the assembly process and key features of the swing.
- Unpack Components: Carefully remove all parts from the packaging. Verify that all components listed in the packing list are present.
- Assemble Base: Connect the two curved base pieces to the central support column. Ensure they click securely into place.
- Attach Seat Frame: Secure the seat frame to the top of the central support column. Listen for a click to confirm proper attachment.
- Install Seat Pad: Place the soft newborn inlay and main seat pad onto the seat frame. Ensure the harness straps are threaded through the correct slots for your child's size. The fabrics are removable and machine washable for easy cleaning.
- Attach Mobile Arm: Insert the mobile arm into its designated slot on the swing. Attach the two felt mobile toys to the arm.
- Power Connection: Plug the power adapter into the swing's base and then into a wall outlet. The swing can also be powered by batteries (not included) for portability.

Image: Fully assembled Maxi-Cosi Cassia Smart Baby Swing in Classic Slate color. The swing features a wooden-look frame and a light grey padded seat with a mobile arm extending above it.
3. Operating Instructions
The Maxi-Cosi Cassia Smart Baby Swing offers various settings to customize your baby's experience. All controls are located on the touch screen panel at the base of the swing.
Control Panel Overview

Image: Detailed view of the swing's touch screen control panel, showing buttons for power, swing speeds (1-5), timer (8', 15', 30'), auto-motion, volume, and music/nature sounds.
- Power Button: Press to turn the swing ON or OFF.
- Swing Speeds (1-5): Select from five different swing speeds to find the most comforting motion for your baby.
- Timer Settings: Set the swing to operate for 8, 15, or 30 minutes before automatically turning off.
- Auto-Motion Detector: Activate this feature for the swing to automatically detect your baby's movements and initiate soothing motions.
- Melodies & Nature Sounds: Choose from 12 built-in melodies and nature sounds to create a calming auditory environment.
- Volume Control: Adjust the volume of the melodies and nature sounds.
Seat Adjustments
- 360° Rotation: The seat can be manually rotated a full 360 degrees, allowing your baby to view their surroundings from any angle and stay connected with you.
- Recline Positions: The swing offers 2 recline positions for customized comfort, from a more upright position for interaction to a relaxed recline for soothing.

Image: The swing seat is shown rotating, highlighting its 360-degree rotation capability to keep the baby engaged with their surroundings.

Image: The swing seat is depicted in two different recline positions, illustrating the adjustable comfort options for the baby.
4. Maintenance and Cleaning
Regular maintenance ensures the longevity and hygiene of your Maxi-Cosi Cassia Smart Baby Swing.
- Fabric Care: The newborn inlay and main seat cover are removable and machine washable. Use a gentle cycle with cold water and mild detergent. Air dry or tumble dry on low heat. Do not bleach.
- Frame Cleaning: Wipe down the plastic and wooden-look frame components with a damp cloth and mild soap. Do not use abrasive cleaners.
- Storage: When not in use, the swing is lightweight and foldable for easy transport and storage. Store in a cool, dry place away from direct sunlight.

Image: A close-up view of the EcoCare fabric, highlighting its soft, breathable texture and the "EcoCare" logo, indicating it's made from 100% recycled materials.
5. Troubleshooting
If you encounter any issues with your Maxi-Cosi Cassia Smart Baby Swing, refer to the following common troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Swing not turning on or operating. | Power adapter not connected, batteries low/dead, or incorrect installation. | Ensure power adapter is securely plugged in. Replace batteries if using battery power. Re-check assembly steps to ensure all connections are secure. |
| Swing motion is weak or inconsistent. | Low battery power or obstruction. | Connect to AC power or replace batteries. Check for any objects obstructing the swing's movement. Ensure baby's weight is within the specified limit. |
| Sounds/melodies not playing. | Volume too low or sound feature not activated. | Increase the volume using the control panel. Ensure the music/sound button is pressed. |
| Auto-motion detector not activating. | Feature not enabled or insufficient baby movement. | Press the auto-motion button on the control panel to enable. Ensure your baby is moving enough to trigger the sensor. |
6. Specifications
- Brand: Maxi-Cosi
- Model: SW128HCS
- Color: Classic Slate
- Product Dimensions: 27.95"D x 26.77"W x 35.04"H
- Item Weight: Approximately 10 lbs
- Frame Material: Plastic
- Material Type: Polyester (EcoCare, 100% recycled fabric)
- Power Source: AC adapter (included) or Batteries (Yes, required - not included)
- Maximum Child Weight: 20 lbs
- Manufacturer: Dorel Juvenile Group
- UPC: 884392000189
7. Warranty and Support
For warranty information, product registration, or further assistance, please contact Dorel Juvenile Group, the manufacturer of Maxi-Cosi products. Contact details can typically be found on the manufacturer's official website or product packaging.
For additional resources and product information, visit the official Maxi-Cosi Store on Amazon.
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