Do I need a safety adviser?
There's no general rule that every workshop must employ a safety adviser. What the work health and safety (WHS) laws do require is that the business eliminates or minimises risks so far as is reasonably practicable, and gets advice where it doesn't have the knowledge to do that itself: for a hoist inspection, an electrical test or a risk assessment you're unsure of, for example.
Many small workshops manage day to day themselves and bring in a qualified safety professional, or a specialist service company, for the parts they can't do in-house. If you're not sure what applies to your business, ask your state or territory's WHS regulator or a qualified adviser.
WorkshopSafe keeps the records your obligations require, against the equipment they concern. It doesn't replace advice from a qualified safety professional.