Service Manual 620 Class

26 pages - This supplement provides instructions which apply only to Class 620, 625, 626 and 628 Machines. It does cover hook to needle timing.

About the 600 Series Service Manuals These manuals are as received from the factory. The manuals will cover features specific to a particular model, and ask that one reference a different manual for other adjustments. Example: The 620 manual states: Instructions appearing in the Service Manual for Machines of Class 600 generally apply to Machines of Classes 620, 625, and 626. Instructions for Class 603 Machines generally apply to those of Class 628. This supplement provides instructions which apply only to Class 620, 625, 626 and 628 Machines. I am offering each individually for your convenience, just be aware that it may not cover all the information you may require. I am also offering as a complete set, that way you should be provided with all the information required, and be able to handle most all adjustments needed. These are Adjustor's Manuals, not major replacement manuals. Back then, early 60's, Singer had local Stores send machines to service centers for things like gear replacements. They apply to US made models and do not cover those made in Germany, nor Japan.