You are employed in a company as an electrician or engineer responsible for a production line. Suddenly the production line comes to a standstill. After a brief trouble-shooting phase it becomes clear that one of the motors has failed. You immediately disassemble the motor from the system and measure the insulation resistance of the windings. The measurements show that there is a short circuit between two windings in the motor.

After discussing the issue with the manufacturer you find out that delivery for this type of motor can take up to three weeks due to the fact that the motor is not a standard type but a special model.
Your boss makes you responsible for solving this problem within the next four days because the company cannot afford a more prolonged production loss period. Since there is no other alternative; you decide to repair the machine yourself.
By chance, you run across a manual which describes which materials you need to build just such a machine. Naturally, it also contains a description of the individual work steps needed to manufacture such a machine.
The tools and materials are quickly and easily obtained and within one day you can begin winding the coils. You only have three more days left to complete the machine and reassemble it in the production line.