An important piece of shop equipment is the baking/curing oven.
It is used for two main purposes: the drying out of wet motor components and the curing of varnish.
When a motor is disassembled for inspection, often the electrical components are pressure washed. Since electric motors and water don’t like each other, the components must be baked out in a temperature controlled oven in order to evaporate any moisture.
When a stator or armature is rewound, it is given a varnish treatment, followed by a bake cycle in the oven. This baking time allow the varnish to cure and bond with the new copper windings.