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Cummins Generator Set Preheating Mechanism Warms Up Slowly

Mar. 02, 2023

After the cold start or operation of Cummins generator unit, the temperature is difficult to rise to the normal operating temperature range. The overcooling of Cummins generator unit is mainly caused by the poor technical status of the unit insulation system and thermostat used in cold seasons or regions.


cummins diesel generator


Reasons for slow warming of the preheating device of Cummins generator set


1. The thermostat valve is not closed tightly, and the Cummins generator unit warms up slowly after cold start, and stays cold for a long time, especially in winter.


2. The thermal insulation mechanism has poor operation performance and has lost the thermal insulation function of the radiator. The cold air flowing through the radiator and the diesel generator cannot increase or decrease with the need of the thermal condition of the Cummins generator set, making the Cummins generator set supercooled.


3. The fan with clutch lost the function of adjusting the fan speed due to damage, resulting in excessive exhaust volume and overcooling of Cummins generator unit.


Diagnosis and elimination of slow warming of the preheating mechanism of Cummins generator set


1. First, check whether the thermal insulation system in front of the radiator of Cummins generator unit works well. If it is not good, it should be adjusted or repaired to make the shutter operate freely and adjust flexibly with the temperature of Cummins generator set.


2. Remove the damage of the silicone clutch fan.


3. Check whether the operation performance of the thermostat of Cummins generator unit is good according to the inspection scheme. If the main valve cannot be closed, replace it.


Since 1982, Starlight Generator has been a generator set manufacturer qualified by the "National Internal Combustion Engine Quality Supervision and Inspection Center". The product quality has passed the IS09001 quality system standard certification. And obtained the qualification certificate for self-operated import and export. Over the years, starlight units have been widely used in all walks of life, and have won the network access qualification of the Ministry of Information Industry, the network access qualification of the Ministry of Radio and Television, the network access qualification of CNPC, the network access qualification of China Mobile, and the manufacturing qualification of marine units. In 2016, Starlight was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Starlight Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Starlight generator VOLVO unit ranks the top three in the Asia-Pacific sales volume, and is the core OEM partner of Sweden Volvo VOLVO in the Asia-Pacific region. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.

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