An emergency power generator is not always needed, until that moment, operation of the fire pump in case of fire or at best, no one wants to stay stuck in the elevator when power outage. if you want to run the generator when you need it, you should look up the periodic maintenance.
An emergency power generator are recommended to receive at least monthly inspections and two maintenance activites per year by the trained technician who oversees the repair or service or service personel.
Monthly inspections are minor service events and annual inspection is a major service event.
It is recommended to connect a load bank and run the generator under 100% load for no less than two hours that's why to prevent “wet stacking”. Removed potentially damaging deposits commonly referred to as “wet stacking” in the combustion chamber. It is typically caused by engines operating under 50% load capacity.
Inspection should be accomplished each year or every 250 operating hours
