Coolant Systems


Why perform coolant testing?

Many companies can perform Load Bank Testing & can address Fuel Testing and Polishing. At Rapid Power we pride ourselves on utilizing our factory trained generator technicians to assess, repair and maintain all generator components. During all standard maintenance and any repair work, we run a complete diagnostic of your generators systems and perform a detailed inspection to find any potential issues that may arise – and we handle them before they become a problem.

Often Insufficient attention is paid to a generator’s engine coolant system. This is frequently the reason a generator system underperforms or fails completely. Leakage or faulty components will result in coolant levels failing. This will result in an engine running too hot. This will potentially cause temperate shut-down or total engine failure.

Rapid Power’s coolant testing program:

Rapid Power’s planned generator maintenance program routinely checks the entire cooling system. We pay close attention to the critical components relating to cooling. Cooling system components vary from model to model.

A compromised cooling system will negatively impact:

  • Heat exchanger (larger models)
  • Coolant
  • Radiator cap
  • Reservoir (on some models)
  • Water pump
  • Hoses
  • Thermostat
  • Block heater
  • Bypass valves (if applicable)
  • Low level water sensor
  • Water temp sensor
  • Radiator fan
  • Belts

Our cooling system maintenance program is comprehensive and starts with a detailed visual inspection of components. Upon completion of our inspection we will issue a report suggesting replacement of items that are showing deterioration as well as those which have reached the replacement period set by the manufacturer.

Our detailed inspection technician will examine the following:

  • Coolant heating hoses
  • Junction box for sign of corrosion
  • Hoses to after coolers for tightness and leak
  • Bottom and top radiator hose for tightness
  • Inspect radiator cap
  • Strip use to check radiator coolant level (also verify coolant condition with appropriate chart)
  • Tech takes sample from radiator
  • Then adds coolant or changes as required.

Our certified technician will start the generator after all checks and replacement of coolant components to check for hot leaks. The purpose of hot leak testing is to detect issues when coolant is hot and circulating under pressure.

Our hot-leak examination will consist of:

  • Checking all the gauges and switches.
  • Checking for any radiator or hose links inside or outside the canopy.

After running our hot-leak examination the technician will shut down the generator and further examine for leaks after the hot leak-test completed. In order to ensure proper operation for prolonged periods at operating temperature, we recommend a full load-bank test.