Since the video doesn't mention on care instructions, so the responsibility falls on me :)
Ok, for manual one, there's not much you need to take care of..just plug in the parts then you 're ready for ur pump session!
For electric pump however, you need to be careful with the electrical motor/part. DO NOT EVER immerse, sterilise or wash the electrical part thoroughly with water since it might crash your BP. If this accidently happen though, you will see the light indicator stop blinking or doesn't turn on as usual. But still, don't panic what u should do is just leave the pump for at least 2 hours or more to let the water dry and press the electrical button again. The light should illuminate as it is. In case it doesn't, you hv no choice and need to send it back to the manufacturer for repairment.
For more details you can always refer the manual booklet that comes with your BP. AVENT is well known for its high-quality, trusted product thus i can assure you won't regret investing some bucks for this products.
Love!
Medelavent.