You've got to remember, last thing an employee wants to tell a boss, is he's got to spend his money to keep everything right. No unfortunately they wait till a machine breaks, or they have so many complaints, then they have to fix it. Would be nice if the companies that sell the equipment came out on a regular fix it basics, to make sure all is well. Never happens. Besides balancing, the biggest culprit is the 4 sensitive heads on a 4 wheel alignment rack. Besides the education difference between a junior or senior tech to compensate for issues on a four or all wheel vehicle, if one of the sensitive heads gets dropped, then all measurements are thrown off. Again a subordinate employee will never tell his superior he dropped an expensive piece of equipment. Just the way it is I guess.
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