A1:
1. Ensure that your hands are clean and dry before removing the pump motor.
2. Hold the milk collector firmly with your left hand. Use the thumb and middle finger of your right hand to grip both sides of the pump motor.
3. Pull the pump motor outward evenly from both sides.

A2:
1. Find the Right Fit: Use the included Nipple Ruler to measure, and choose the flange size (15/18/21/24mm) that feels best for you.
2.Check the Assembly: Ensure the flange and milk collector are securely connected.
3.Positioning: Sit comfortably, lean slightly forward (45°), and tuck your chin toward your chest. Keep the pump upright to avoid leaks.
4. Worn Parts: Check and replace worn parts like the valve or silicone membrane.
5. Motor Issue: If none of the above works, contact us for a hassle-free replacement or refund.

A3: Fully charge the pump before first use. If the screen is off, plug it in with the provided cable. If it still doesn't turn on, contact us for a hassle-free replacement or refund.

A4: Ensure all parts, especially the silicone membrane, are completely dry before assembly. Water stains may cause the motor to stop or lose suction. Always remove the motor before cleaning to avoid liquid damage. If the issue persists, contact us for a hassle-free replacement or refund.