Searched the forums, park tools and sheldon brown and couldn't really find what I was after - my apologies if it has already been covered and I just didn't look hard enough.
Anyway - just got my first mtb with hayes hydraulic disc brakes and was looking for some do's and don'ts regarding use and maintenance. My lbs tells me not to ride road when wet because the oil from the road will contaminate the pads. What about cleaning and lubing the bike? I normally spray all the moving parts down with aerosol silicone and then wipe off as my last step. If the silicone gets onto the pads will it ruin them? What about de-greasers - will they hurt the pads? What about adjustments? How do I know when the pads/rotors are worn to the point of replacement.
Any other pointers or advice will be greatly appreciated.