As long as its yor brand.You should know all you can about it.But with late model lifts.Its earn as you learn.
That becomes sad when your feeling your way along and still out preform the dealer that sold the lift.I found localy that most dealers think once they sell you a truck your locked into them because only they know how to work on them.We as a dealer work on all.Some times thats a problem.Thankfuly this site has a lot of teachers for those that want to learn.Im not talking about general repairs Hose, leaks ,ect.