Clean, Service, and Repair Lasko Box Fan

The video underscores how to completely disassemble and thoroughly clean a run-of-the-mill Lasko box fan. It also shows how to lubricate the bearings as a means of preventative maintenance or repair should the bearings become stiff or locked, preventing the motor from operating properly.
The model shown in the video is the 3733, however the process is very similar for many of Lasko's other box fans such as the WeatherShield 3720 and the Premium 3723.