JUKI MF-7900 Series Engineer's Manual page 2

PREFACE
This Engineer's Manual is written for the technical personnel who are responsible for the service and
maintenance of the machine.
The Instruction Manual for these machines intended for the maintenance personnel and operators at
an apparel factory contains operating instruction in detail. And this manual describes "Standard Adjust-
ment", "Adjustment Procedures", "Results of Improper Adjustment", and other important information
which are not covered in the Instruction Manual.
When carrying out the maintenance work on the sewing machine, be sure to refer also to the Instruction
Manual and the Parts List.
In addition, for the motor for the sewing machine with thread trimmer, refer to the separate Instruction
Manual or This manual gives the "Standard Adjustment" on the former page under which the most basic
adjustment value is described, and on the latter page "Results of Improper Adjustment" under which
stitching errors and troubles arising from mechanical failures and "How to adjust" are described.