I had a read of that document and some of the links that stem from it - It seems quite straightforward if the product is CE marked, however anything really old that isn't CE marked the guidance is quite sketchy.
I could only find this small paragraph:
"Older equipment, including equipment that did not require CE marking, should be supplied in a safe condition and in some cases this may require additions to what was originally provided. The required standard for safety (ie what is reasonably practicable) can be guided by standards relevant to the product. For example, old non-CE marked machinery (pre 1995) should, where reasonably practicable, meet the requirements of PD 5304:2005 Guidance on the safe use of machinery which contains the text of the last British Standard on the safety of machinery which would have applied to such pre 1995 machinery."
Paragraph below - the equipment is so old the instructions are not even available online anywhere.
"In addition you must also provide adequate information about using the equipment, normally this will be a copy of the original equipment's instructions in English."
Technical file:
"As manufacturer you, or if from outside the EU your appointed authorised representative, must compile a technical file for each product you place on the market (or one for a series of identical products) as required by the relevant . This is required so that as manufacturer you can demonstrate with appropriately detailed documentation, calculations and drawings, how your product complies with all relevant Directives, and so is safe during all phases of its life."
The company we purchased the machine from is not the manufacturer.
The information on creating a declaration of conformity also only seems to have guidance where CE marked products are in question. E.g:
"A Declaration of Conformity is not a quality certificate, nor a guarantee for safety. However, when properly drawn up along with CE marking on the product, conformity of the product with the Directive(s) quoted on the Declaration of Conformity may be presumed by suppliers in the distribution chain and by the end customer, provided there are no obvious or known defects. Additionally, market surveillance authorities, must presume that CE marked products, accompanied by a Declaration of Conformity comply with the provisions of the Directive(s) mentioned, unless they have evidence to the contrary (for example by examining or testing the product)."
The conformity assessment guidance note states the following:
"When do I have to undertake conformity assessment?
Before placing new products on the market, or bringing them into service, for the first time, the Responsible Person (the manufacturer or his authorise representative) must undertake the one of the conformity assessment procedures that apply to the product. This may include second-hand products"new" to the market such as imports from outside Europe of non-CE marked products, or products so substantially refurbished as to be considered new."
None of this applies to the machine that has been purchased - it isnt new, being used for the first time or being imported from outside of the EU.
We have nothing from the company we purchased it from, so would it be adequate for us to carry out PUWER assessment (ensuring it complies with everything other than "is the machine CE marked"), draught our own operating instructions and safe system of work (The operation of the machine is as simple as sliding in the product and pressing a pedal to punch), and as the machine is a power press have the thorough check done by our 3rd party inspector?