Before starting a diesel generator, it is essential to check the coolant level to prevent the unit from over-temperature. When the coolant level is low, you need to replenish the coolant to the radiator:
- Before adding coolant, make sure that the radiator is cooled down.
- After opening the lid at the top of the radiator, add coolant slowly to let additional air from the generator set breathe out.
- When the filling is complete, tightly close the radiator cap.
Though you may visually check the coolant level with naked eyes when opening the radiator cover, it may not be accurate. Instead, in our Remote Radiator Type enclosure sets, we have a radiator sight tube (e.g. level gauge instrument) installed at the radiator side. For open type diesel generators, you can check the coolant level through a sight tube located at the top corner of the radiator. Furthermore, the control panel notifies you when a low coolant level is detected.