The transfer case generates heat during operation, but if the temperature is significantly higher than normal, it warrants attention. High transfer case temperature doesn't always have a single cause.
First, check the lubricating oil. Insufficient oil, aged oil, or unsuitable lubricating oil can all increase friction between gears and bearings, causing heat to accumulate.
Second, consider any abnormalities in internal components. Worn bearings, poor gear meshing, or abnormal friction in rotating parts can also lead to a rapid temperature increase.
Prolonged high-load operation is also a significant factor. When bulldozers operate for extended periods pushing heavy loads, continuously climbing slopes, or in harsh environments, the load on the transmission system increases significantly, leading to a corresponding increase in heat generated by the transfer case.
