Service ManualModel No.: 42D3500Caution:A “caution ” is used when there is danger that the reader, through incorrectmanipulation, may damage equipment, loose data, get an unexpected result or has torestart(part of) a procedure.Warning:A “warning” is used when there is danger of personal injury.Reference:A “reference” guides the reader to other places in this binder or in this manual, wherehe/she will nd additional information on a specic topic.7