What should you monitor regarding the engine cooling system during operation?

• A. Monitor coolant temperature only.
• B. Monitor coolant temperature, check coolant level, ensure radiator and condenser are clean, and watch for overheating.
• C. Ignore overheating indicators and proceed.
• D. Check radiator cleanliness only.

Answer: (B)

You need to actively monitor several aspects of the cooling system while the machine is running to prevent overheating and keep the engine healthy. Tracking coolant temperature helps you see if the engine is operating within its normal heat range. Checking the coolant level ensures there’s enough fluid to absorb heat and compensate for minor leaks. Making sure the radiator and condenser are clean allows adequate airflow to remove heat effectively. And watching for overheating gives a direct warning of any problem developing. Together, these checks cover the main ways cooling problems arise—low coolant, restricted airflow, or rising temperatures from another fault—and help you take action before damage occurs. Focusing on only one aspect, or ignoring signs of overheating, can miss a fault and lead to engine damage.