They also give easy - tounderstand advice on how to set up to keep the 100 % performance of the machine and how to make adjustments that suit you .
For the introductory class , the full - time instructors teach the required machine maintenance .
instructors also give easy - tounderstand advice on how to set up to keep the 100 % performance of the machine and how to make adjustments that suit you .
For the introductory class , the full - time instructors teach the required machine maintenance .