Originally Posted by
Sue Iskenderian
That is the bushing, that block thing. It does have a oil hole right in the center of the indentation for the spring that holds the roller down. It all together slides up into the machine (without the spring). Then there's a hole through the casting where the spring sets down into the recess in the block/bushing. Then a cap that screws in above the spring and pushes against the spring, and that cap has an oil hole in it. And that's how the spring tension is adjusted, raising or lowering the screw. (sorry not used to explaining) Want a better photo or does that make sense?