Using this oven thermostat is easy. First, make sure your oven is turned off and unplugged. Install the thermostat by aligning it with the 10mm mounting hole. Connect the 6.4mm spade terminals to the appropriate wires. Once installed, plug in your oven and set the desired temperature between 50 and 320 degrees Celsius using the 5 - position switch. As for maintenance, keep the thermostat clean. Wipe it gently with a dry cloth. Check the connections regularly to make sure they are secure. When handling, be careful not to damage the 90cm capillary or the 10cm bulb. If you have any problems, it's best to seek professional help.