Electric cement mixers are very durable and can last a long time, even under adverse conditions. But like any other electric device, they must be cared for or they will break down. One of the easiest ways to ensure that your mixer lasts a long time is through regular lubrication of the motor.
Inspect the motor and look for accumulated dirt. Using a can of compressed air, blow the excess dirt and grime from the motor until it is clean. Make sure that you blow air into the vented end of the motor to remove any debris.
Observe the gears and pulleys of the motor. Ensure that the pulleys are not loose or the gears damaged. Make sure that the belt is in working order.
Identify those parts that need to be lubricated, such as the gears in the motor. Lubricate by carefully spraying the parts with a can of WD-40. Spray until the gears are shiny and well lubricated.