An exclusion distance instead of a judgement call
Telling a crew to clean around running machinery safely is not an instruction, because safe is a judgement that varies by person and by night. A stated exclusion distance is an instruction: a measured zone around each machine that is not entered while it is running, marked on a simple site plan so nobody has to work it out under time pressure.
Setting that distance is a conversation with the site, not a cleaning decision. It depends on what the machine does, where material is ejected, where moving parts extend and where an operator needs clear space. Once it is agreed, the routine attendance covers everything outside it and the site knows exactly what is being left for the isolated cycle. Recording the distance on a simple site plan, rather than in words, is what makes it usable by an attendant standing on the floor at night.
