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  • Prior to contracting with Electro-Motion, we did our own maintenance, which was very little due to lack of qualified staff and budget concerns. We have four diesel units at our various high schools and none were in great operating condition. Electro-Motion came in and provided us with professional services and brought our generators up to full operational capability. We are also considered emergency shelters due to unforseen natural disasters; and we need our generators to support this type of operation.

    John Schultz
    Director of Operations/Maintenance/Health-Safety & Transportation
    Jefferson Union High School District

    Coolant Flush versus Cooling System Service - Both are good, but one is better and more complete.

    January 8, 2013

    A coolant flush, as the name implies, is only draining existing coolant, flushing the system with water, draining and then refilling with Fleet Charge 50/50 Pre-Diluted, Fully Formulated, SCA Precharged coolant. Coolant flushes are important but do not address many of the common reasons a generator cooling system fails.

    A complete Cooling System Service includes flushing the system 2-3 times, coolant disposal, replacing all hoses (including heater hoses) plus any clamps that are in poor shape, replacing all belts, replacing the engine thermostats (this is a critical item), replacing the radiator cap, filling with new coolant (50/50 mix) and testing for leaks and proper performance. Hoses fail from the inside out, meaning signs of failure are not evident until it's too late. By proactively changing hoses, failures and leaks are prevented. Engine thermostats are critical in that they prevent units from overheating by enabling the unit to shut itself down before a catastrophic failure occurs. These are relatively inexpensive parts which should be replaced proactively to avoid major engine repair costs or even unit replacement.

    Performing Cooling System Service every 3 years is an industry standard that addresses all key components so that the cooling system performs as designed. A comprehensive preventative maintenance program for generators should include proactively changing cooling system components to ensure the generator is ready for service when called upon during a power outage.


    Alarms – Secondary Containment and High-Low Fuel

    January 2, 2013

    We frequently receive calls about two types of alarms on emergency generators – Secondary Containment Alarms and High Low Fuel Alarms.  A Secondary Containment Alarm provides an alert anytime fuel enters a secondary containment vessel.  This prompts an investigation into a possible leak in the primary fuel tank so that needed repairs can be made quickly.  The High-Low Fuel Alarm is just as it sounds – providing an alert if the fuel level is too high, creating a possible overflow situation, or an alert if the fuel level is too low, so that the generator tank can be properly filled and ready in an emergency.

    Often these questions arise in response to a visit by the fire department inquiring if these alarms are in good working order and requesting a demonstration.  A comprehensive maintenance program ensures the alarms are checked each visit, at least quarterly.  Onsite facilities personnel should ask their service provider to show them how to demonstrate the alarms so that they are prepared for the question during an inspection.   

    If you have questions or concerns about your Secondary Containment Alarm or High-Low Fuel Alarm, please give us a call (650) 321-6169 or drop us an email - We’d be happy to help.

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