What safety precautions must be taken before performing any work on the pump?

Always switch off the power supply before starting any work on the product and ensure it cannot be accidentally switched on. Before dismantling the pump, close the isolating valves on both sides of the pump and wait for the pump housing to cool down, as the pumped liquid may be scalding hot and under high pressure. All electrical connections must be carried out by a qualified electrician in accordance with local regulations. (Page 3, 4, 16)