This is a COPY of the ORIGINAL.

Manual for BABY LOCK BL4-428 SERGER - SIX (6) pages

Needle Adjustment - Lower Looper - Upper Looper - Adjusting Needle Guard - Presser Foot

Our manuals are printed copies, sized 8 1/2" × 11" and bound with a clear plastic front cover, a plastic comb spine so that they can lie flat when opened, and a cardstock back cover.
Most are enlarged from the originals.