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  • I have had the pleasure of working closely with Electro-Motion on my fire pumps and emergency generator. They correct problems on the spot and report on anything which may need to be corrected in the future, keeping equipment in top working order saves us all in emergency repairs and costly down time.

    Scott W. Varady
    Director of Engineering
    San Ramon Marriott Hotel

    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.

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