During pumping operations, if the driver/operator discovers that the engine temperature is increasing, then he or she should:

When the engine temperature is increasing during pumping operations, shutting down all unnecessary loads on the engine is the most effective response. This action immediately reduces the strain on the engine, allowing it to cool down more effectively. By reducing the workload, the engine can operate more efficiently, which can prevent potential overheating and damage.

It's important to recognize that while increasing engine RPM may seem like it could improve cooling through increased water circulation, it can actually exacerbate overheating by putting additional strain on the engine. Checking the oil level is a good maintenance practice but does not directly address the immediate problem of temperature increase. Activating cooling fans might aid in lowering the temperature, but if the engine is operating under too much load, this is a temporary fix rather than a comprehensive solution. Thus, prioritizing the reduction of unnecessary engine loads provides the most direct benefit in managing engine temperature effectively.