Oilers/Plant Tenders (HHC) Civil Service Practice Exam

What is the proper method an oiler should use to lubricate a duplex direct-acting steam pump feeding water to a boiler?

1. Swab the rods and check the hydrostatic lubricator

2. Fill the pump with grease

3. Oil the steam inlet valves

4. Inspect the water level in the boiler

The correct answer is: Swab the rods and check the hydrostatic lubricator

For an oiler working with a duplex direct-acting steam pump, the proper method of lubrication involves swabbing the rods and checking the hydrostatic lubricator. This practice is essential because the rods in such pumps are critical moving components that require consistent lubrication to function smoothly and prevent excessive wear. The hydrostatic lubricator plays a vital role as it automatically delivers oil in response to the movements and pressure within the pump, ensuring that friction is minimized and the longevity of pump parts is maximized. Using grease on the pump, as indicated in one of the other choices, is not appropriate. Grease can cause blockages and impede the mechanics of the pump, especially in areas that require fluid oil for proper function. Similarly, oiling the steam inlet valves does not directly address the lubrication needs of the pump's working components and could overlook vital lubrication points essential for the overall efficiency of the steam pump operation. Lastly, while inspecting the water level in the boiler is important for safety and operational integrity, it is not related to the lubrication of the steam pump itself. Thus, swabbing the rods and checking the hydrostatic lubricator is the most relevant and effective choice for maintaining the pump's functionality and performance.