We purchased an industrial sewing machine at an auction for $75.00 with a 3 phase motor. Just got a new motor off ebay and got it running, works great but skips a stitch every few inches. I am looking for a manual for cleaning & adjusting it, also got a box with additional attachments that I am not sure how to attach & use. It says Chandler on the front of the machine and the tag on the back says Adler 167-GK-373. Have been searching with no luck. Any help would be appreciated. Thanks Michelle