Important Safety Information
This breast pump is designed for single-user operation. Using this breast pump or its parts/accessories with multiple users presents health and performance risks, and will void the product warranty. The product contains small pieces; keep out of reach of children.
Product Overview
The Medela Swing Single Electric Breast Pump is a compact and lightweight solution for efficient breast milk expression. It incorporates Medela's research-based 2-Phase Expression Technology, which mimics a baby's natural nursing rhythm to optimize milk flow. The pump offers adjustable vacuum controls for personalized comfort and can be powered by either an AC adapter or batteries, providing flexibility for use at home or on the go.
Included Components:
- 1 Motor Unit
- 1 PersonalFit 24 mm Breast Shield
- 1 Breast Shield Connector (Pump Body)
- 1 Valve
- 2 Membranes
- 1 Tubing
- 2 5 oz. (150 mL) Breast Milk Bottles
- 2 Bottle Lids
- 1 Bottle Stand
- 1 Shoulder/Neck Strap
- 1 AC Adapter
- 1 Drawstring Bag
- 1 Breastfeeding Information Guide
- Instructions for Use

Figure 1: Medela Swing Single Electric Breast Pump assembled with bottle and tubing.

Figure 2: Complete kit contents of the Medela Swing Breast Pump, showing all included parts.
Setup and Assembly
Before first use, and after each subsequent use, ensure all parts that come into contact with breast milk are cleaned and sanitized according to the 'Cleaning and Maintenance' section.
Assembly Steps:
- Connect the tubing to the motor unit.
- Attach the other end of the tubing to the breast shield connector (pump body).
- Screw the breast milk bottle onto the breast shield connector.
- Ensure the PersonalFit breast shield is securely attached to the connector.
Power Options:
- AC Adapter: Plug the AC adapter into the motor unit and then into a wall outlet.
- Batteries: For portable use, the pump can be powered by 4 AA batteries (not included). Open the battery compartment on the back of the motor unit and insert the batteries, ensuring correct polarity.
Video 1: This video demonstrates the assembly and basic operation of the Medela Swing Single Electric Breast Pump, including connecting components and power options.
Operating Instructions
The Medela Swing Breast Pump utilizes 2-Phase Expression Technology, which begins with a short, fast stimulation phase to encourage milk let-down, followed by a slower, deeper expression phase.
Starting the Pump:
- Ensure the pump is correctly assembled and powered.
- Center the breast shield over your nipple.
- Press the power button to turn on the pump. It will automatically start in the stimulation phase.
Adjusting Settings:
- Stimulation Phase: The pump will operate in a fast, light suction pattern for approximately two minutes to initiate milk flow.
- Expression Phase: After the stimulation phase, the pump automatically switches to a slower, deeper suction pattern. You can manually switch to the expression phase earlier by pressing the 'let-down' button (droplet icon).
- Vacuum Level: Use the '+' and '-' buttons to adjust the vacuum strength to your comfort level. Choose the highest comfortable vacuum setting for optimal milk expression.
Pump until milk flow slows or stops, typically for 10-15 minutes per breast. Turn off the pump by pressing the power button when finished.
Cleaning and Maintenance
Proper cleaning and maintenance are crucial for hygiene and pump longevity. Always clean parts that come into contact with breast milk immediately after each use.
Manual Cleaning:
- Disassemble all parts that come into contact with the breast and breast milk.
- Rinse all separated parts with cold water (approx. 20°C / 68°F) for 15 seconds to remove milk residue.
- Wash parts in warm soapy water (approx. 30°C / 86°F) using a mild dish soap.
- Rinse thoroughly with cold water for 15 seconds.
- Allow parts to air dry on a clean cloth or dry them with a clean cloth.
Dishwasher Cleaning:
Individual parts of the pump set can be cleaned in the dishwasher. Place them on the top rack or in the cutlery section. Food coloring may discolor components, but this will not affect performance.
Boiling (Sanitizing):
Boil the pump set parts before using for the first time and once a day thereafter.
- Place all disassembled parts in a pot.
- Cover all parts with water.
- Bring water to a boil and continue boiling for 5 minutes.
- A teaspoon of citric acid may be added to the water to prevent limescale build-up.
Alternative Cleaning:
Medela Quick Clean Microwave Bags can be used for steam cleaning. Follow the instructions provided with the bags.
Troubleshooting
If you experience issues with your Medela Swing Breast Pump, please check the following:
- No Suction or Weak Suction: Ensure all parts are correctly assembled and securely connected. Check the tubing for kinks or damage. Verify that the membranes and valves are clean and intact.
- Pump Not Turning On: Check if the AC adapter is properly plugged in or if the batteries are correctly inserted and not depleted.
- Milk in Tubing: If milk enters the tubing, disconnect it immediately and clean it thoroughly. Ensure the breast shield is properly positioned to prevent backflow.
For persistent issues, refer to the detailed troubleshooting section in your instruction manual or contact Medela customer service.
Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 9.76 x 3.43 x 9.63 inches |
| Item Model Number | 27276 |
| Material Type | Plastic |
| Additional Product Features | Lightweight |
| Power Source | AC Adaptor, 4 AA Batteries (not included) |
| Pump Type | Electric |
| Battery Life | Approximately 2 Hours |
| Is Portable | Yes |
| Dishwasher Safe | No (for motor unit), Yes (for other parts) |
Warranty and Support
If you have any questions or issues with your Medela pump, please contact Medela (toll-free) at 1-800-435-8316 before reaching out to your place of purchase. Our customer service team is available to assist you.





