What are the reasons for the high water temperature of the CAT 320D excavator?

Check if the coolant level has significantly decreased, and if so, add an appropriate amount. Or check if the coolant has deteriorated. If it deteriorates, it is necessary to clean the waterway and replace the antifreeze.

Next is to check the oil level of the used 320D excavator. If the oil level is too low, it needs to be added or replaced in a timely manner.

Next, check if there are any foreign objects blocking the water radiator of the excavator and if the radiator air duct is blocked. If there is any blockage, it must be completely cleaned.

Then it is necessary to check whether the fan blades of the excavator are deformed and whether the air volume of the fan is too low. If so, it is recommended to replace the fan or adjust the belt.

Check if there is a short circuit or open circuit in the water temperature sensor and circuit of the Caterpillar 320D used excavator. If there is, it is recommended to contact a professional for repair.

Disassemble and inspect the thermostat, place it in hot water, and observe the opening of the thermostat. If it cannot be opened normally, replace the thermostat.