Pumps & Systems - September 2007

setting the oiler adjustment using this conventional technique.

At that time, there was not a precision tool available that ensured the level was being properly set on a typical oiler. We needed a tool to improve the method of setting the oil level on a constant level oiler that provides greater accuracy than conventional techniques.

Consequently, Oconee Nuclear Station developed a laser guided oil level setting tool. ¹ This tool uses a laser to transfer the oil level setting from the adjusting arm in the oiler onto a reference mark on the bearing housing (oil sump) that represents the correct oil level for the equipment bearings.

More specifically, this tool provides a first portion that is configured to extend into the base of the constant level oiler and into engagement with the adjustable element. It also provides a second portion that is disposed exteriorly of the base to indicate visually, by laser beam, the disposition of the adjustable element relative to the oil containing sump.

The laser beam is equipped with a line generator which

Cross-section of typical oil sump lubrication with a constant level oiler.

projects a red line against the pump bearing housing, rather than just a red dot.

Thus, as the elevation of the adjustable element of the oiler is moved upwardly and downwardly during the setup process, the oil setting tool provides a visual reference, via the laser, at each step in the adjustment process. This accurately sights the