The valve requires no periodic service. A common cause of valve malfunction is dirt from the system. therefore pilot
solenoid operation should be checked before attempting to service the diaphragm valve.
TO SERVICE DIAPHRAGMS:
Depressurize the system.
Remove the covers. springs and diaphragm assemblies.
Clean all components, and check that air passages and bleed holes are clear.
Replace worn components using diaphragm kit M1182 (Standard) or M1156 (VITON®). Each kit consists of one
set of diaphragm assemblies and diaphragm springs.