One of the things I learned maintaining 'printing equipment' that has helped most of my life....
"If it slides metal on metal, grease it...If it rotates metal on metal, oil it!"
Sure would be nice if DeWalt would put one of its PROS, i.e., service technicians, on each Scrolling Forum to answer questions like this!
But then they would have to close most of their shops.....
~~~GrayBeard~~~