ROTOR AS-FILTER 4946433 - Caterpillar

Engine Shutdown Caused By High Coolant Temperature Fault
The control board performs an automatic engine shutdown when the engine coolant temperature rises above the upper limit of the water temperature switch (WTS). At this time, the WTS closes and provides a B- (battery negative) signal to the coolant temperature input (connector contact 15) of the control board. The control board stops the flow of fuel, opens the shunt trip circuit breaker, illuminates the high coolant temperature fault indicator and activates the optional general alarm relay. The coolant temperature input (connector contact 15)