Can someone tell me how the attached dust/chip management part on the Delta Jointer is put on. I bought the jointer disassembled, and I cannot figure it out. It does not appear in the manual. It screws on to the hold downs for the blade assembly (two bolts) underneath the body of the jointer, and interacts with the dust chute (it is not the dust chute cover featured in the manual). I just can’t figure out how it fits under the tool.