Machines of this era if 240volt ac need checking to ensure the electrical earthing circuit is complete. If it is double insulated it will have a square box within another box on the label and will not need an earth at all.
i got hit and picked up by a car and hung on to the wiper blades and the cleats held the bike to me until the bike hit a pedestrian!, bet they wished i had worn cleats!
Machines of this era if 240volt ac need checking to ensure the electrical earthing circuit is complete. If it is double insulated it will have a square box within another box on the label and will not need an earth at all.