The only maintenance required by the motor is periodic lubrication, which should be done in accordance with the motor manufacturer's instructions.
If repairs are needed, refer to the nearest authorized service station or the motor.
To remove the motor from the unit:
If the boiler water is maintained in proper condition, the strainer will require little if any maintenance. However, it should be inspected occasionally to be sure the screen is not plugged up with scale or other foreign material.
Depending on the individual installation, it may be necessary to clean the strainer screen every month, or only once or twice per year. After a few times, experience will indicate how often it should be cleaned.
To remove the screen for inspection or cleaning:
Ordering Repair Parts
Source: Cleaver Brooks