Thanks all for the input, sorry I have not been back to you sooner, I've been a bit busy.
I am simply thinking of something as simple as hand drawn modifications to printed electrical, hydraulic, pneumatic drawings etc. if the machine drawings are paper, correctly identifying the new parts on the machine, wire numbers for electrical, module identifications for the new parts and referencing these back to the information supplied.
For more complex mods then more complex details would be needed.
I have said maintenance and repair as opposed to operation, however, these are both parts of the "operation" of the machine and foreseeable operations, so, I don't see how they can be neglected as the changes to the machine do not affect its day to day function perhaps, but, they do impact on the maintenance and repair side of the operation of the machine.
stillp,
I have been told this by the client, though they don't know what the standards are and don't have copies!!!
bibman,
That is part of my argument.
ron,
There are no changes in function really, my concern lies with the detail changes that would not be in the machine documents, so it is a concern for maintenance and repair persons really, rather than operation.
Ray,
They are not the manufacturer of the original kit, however, they are in a way the manufacturer of the modification, hence my thoughts are along the lines of yours.