You do not have to push your bike on your way home because of a grinding or squeaking disc. Normally it is still functioning. Continuing to use it should not cause any damage. You can adjust it at home.
Amount of air in your tires
Do no ride with too much air pressure. It is not useful on single trails. On the other hand, also do use enough air pressure - we are happy to show you the right way in one of our local stores.
Fork and rear shock
The fork and the rear shock need some lubricant from time to time. We recommend "Brunox". Be careful not to put anything on the disc brakes!
We recommend to change the chain every 2500 to 3000kms.