The cone crusher oil temperature should be held in 38~54°C（100~130°F）, and the best working temperature is 38~46°C（100~115°F）, and it can ensure lubricating oil performance stability within this range. When environment or job cause the oil temperature increases to 54 °C (130 °F), it should use lubricant cooler. Therefore conditional unit can install a temperature control valves in the lubricating system, and automatic control cooling water into the cooler. If no install temperature control valves, it should be installed a ball valve to manual adjust water through the cooler. The quantity of water must be based on environmental temperature and working conditions of crusher and the tenet is to make lubrication temperature stability in 38 ~ 54 °C (100 ~ 130 °F).