Covering the gaskets to restrict air movement will also help to prevent drying out and cracking. In the spring, make sure the gaskets are in good condition before inserting in the pipeline. Chemical injector pumps Chemical injector pumps should be flushed with water, then drained and, if transportable, stored in a clean dry place. If the pump is belt driven, loosen the belt. Electrical motors and controls Check all electric motor openings to make sure they are properly screened to keep rodents out.
Rodents like to chew on motor winding insulation in the winter.
Often chewed windings result in shorts and a burned out motor the next year. If a screen is damaged or missing, replace with -inch mesh screen. This screen can then be left in place during operation without plugging with dust and debris. Electric motors are best left open to free air movement to keep moisture condensation in the motor to a minimum. Lubricate all bearings and rotate motor.