How to change the track motor oil on a mini excavator

It's important to change to gear oil when you service a digger - they are so often forgotten! Here's a very easy set by set guide of what to do.
My son Ollie decided to join me so you will here him all the way through!
We are a small independent plant hire firm based in Devon in the UK offering mini diggers, dumpers and various our items for self drive hire.
You can check out our website here - www.bearplant.com