Singer ST-1 User Manual

Instruction Manual
Singer
UT-1 Device
ST-1 Device
for
755U Machine
756U Machine

Singer ST-1 Specifications

General

Buttonhole Styles	1
Max Stitch Width	5 mm
Max Stitch Length	4 mm
Needle Threading	Automatic
Display	LCD
Foot Pedal	Yes
Drop Feed	Yes
Free Arm	Yes

Summary

APPLICATION

1-1 THREADING AND TESTING

Details threading procedures for the sewing machine, referencing CT series interlock machines.

1-2 INSTALLMENT AND ADJUSTMENT OF THE SYNCHRONIZER

Instructions for installing and adjusting the synchronizer mechanism for correct machine operation.

1-3 ELECTRICITY AND CONNECTION OF ITS POWER CONTROL CYCLE

Wiring diagram and connection guide for the AC servo motor and control cycle.

MAINTENANCE AND ADJUSTMENT

2-1 LOWER MOVABLE KNIFE AND FIXED KNIFE

Procedure for adjusting the lower movable and fixed knives, ensuring correct clearance and alignment.

2-2 SETTING THE HEIGHT OF THE LOWER FIXED KNIFE CARRIER GUIDE

Guidance on setting the height of the lower fixed knife carrier guide for optimal performance.

2-3 SETTING THE POSITION OF THREAD TRIMMER

Steps for setting the correct position of the thread trimmer mechanism.

2-4 DOUBLE-CHECKING

Final checks for thread correlation and trimmer functionality before sewing operation.

TENSION RELEASE EQUIPMENT

Thread Guide Hook & Release Wedge Adjustment

Adjusting thread guide hook unit screws and the release wedge for proper tension control.

ADJUSTMENT FOR SPREADER TRIMMER

4-1 THE EXPLANATION FOR TRIMMING OPERATION

Explanation of the spreader trimmer's operation during the sewing cycle.

4-2 MAINTENANCE AND ADJUSTMENT

Maintenance and adjustment procedures for the spreader trimmer knives and springs.

UT-1 UNDERBED TRIMMER COMPONENTS

SPREADER THREAD TRIMMER COMPONENTS

COMPRESSED AIR COMPONENTS

THREAD TENSION AND MOTOR COMPONENTS