Razor e300 brake - Razor E300 Scooter

The brake adjustment is covered on page 5 of the user manual. There are photos of various band brakes here http://www.electricscooterparts.com/bandbrakes.html
What part of the band brake are you having and issue with?

1. rotate the rear wheel until the hole in the sprocket lines up with the tyre valve.
2. insert the tyre valve extension through the hole and attach it to the tyre valve
3. inflate the tyre to the correct pressure (usually 45psi)
4. remove valve extension and put in a safe place for next time.

Inflating the rear tyre is detailed in the owners manual, which you can download from the Razor web site.
http://www.razor.com/au/products/electric-scooters/e300/

The scooter uses batteries specifically designed for deep discharge applications. If your new batteries are not lasting then they may only be suitable for standby or backup type applications like for your house alarm system or garage door opener when the mains power goes out.

No. We get batteries from a local supplier and they work just as well. are by far the most common problem with razors because people dont keep them charged.

My guess is the batteries have gone bad. They only last about a year before they need to be replaced. You can buy them fairly cheap off of Ebay.

1. With a Phillips screwdriver loosen the two screws and remove the chain guard.
2. With a 10mm wrench loosen the brake cable anchor and disconnect the cable.
3. With two 8mm wrenches loosen the brake housing anchor and disconnect. (Keep the spacer and washers together.)
4. With a 10mm wrench loosen both axle adjusters an equal amount. (roughly five turns)
5. With two 17mm wrenches loosen the axle.
6. Push the wheel forward in the slots to loosen the chain.
7. Pull the wheel out. (Pay careful attention to the order the hardware is in there.)

Regards, Tomy

Its the black button next to the switch and charger port.

http://www.razor.com/products/e300-electric-scooter.php