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616 RICHARDSON'S BLUEBOOK OF PROJECTION
of his sound installation, carefully considering what possible troubles must be guarded against in each, and how often it should be necessary to inspect for their symptoms. His inspection lists are prepared accordingly. Experience with the installation will naturally call for some modification or expansion of those lists from time to time.
If the theatre is receiving regular sound service only the daily list is necessary. The sound engineer will take care of everything else, insofar as the sound equipment is concerned, and the daily form should be submitted to him for his comment and advice.
(22) The daily form lists every item that needs care or attention daily, but just what these will be depends on individual conditions. (23) The weekly list mentions everything that needs to be done or watched weekly. The weekly inspection, if lengthy, need not be done all at once. It can be divided into parts, and some of it done each day. If there is no weekly inspection, but only one every other week, some items, which cannot safely be neglected that long, will have to be added to the daily form. (24) The monthly list includes attention to those parts that wear out rather slowly, and do not need very constant watching. Upon occasion, some part in poor condition may be transferred, pending replacement, to the weekly or even to the daily list. (25) The annual or semi-annual inspection is usually very thorough, including all those parts of the system that cannot be inspected often because they are difficult to get to, or because (as with the innumerable soldered connections) too much time is needed to do a thorough job of going over them. The annual check-up also includes those that are very slow to wear and consequently need attention only rarely.
Detailed knowledge of local conditions and good common sense are the necessary requirements for preparing such lists.
(26) The purpose of inspections, of course, is to insure that all necessary adjustments, repairs and replacements are made in advance of serious trouble. Inspec