Methods and apparatus relates to a tool with a laser to assist with adjustment of a constant level oiler associated with rotating equipment. The tool projects light from the laser onto a housing of the rotating equipment to identify position of a level adjuster of the oiler relative to an oil level marker on the housing of the rotating equipment. The tool includes a portion that is inserted into part of the oiler during use of the tool and is coupled to the laser, which may be moveable from the portion inserted and may have extension from the portion inserted counterbalanced by a weight also coupled to the portion inserted.