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HIGHLEAD Manuals
Sewing Machine
GC20528 series
Instruction manual
HIGHLEAD GC20528 series Instruction Manual
Twin-needle high speed split needle bar lockstitch sewing machine
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Contents
Table of Contents
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Table of Contents
Table of Contents
Precautions before Starting Operation
Preparation for Operation
Power Cable Connection
Connection of Control Box
Adjustment of Needle Bar Stop Position
Cautions on Use
Oiling ( 1)
Oiling (2)
Oiling Condition
Adjustment of Oiling to Rotating Hook
Cautions on Operation
OPERATION Installation of Needles
Selection "<)F Thread
Threading of Needle Threads
Adjustment Offeed (Stitch) Length and Stitch Reversing (Touch-Back)
Setting of Bobbin
Adjusting of Needle Thread Guide
Threading of Bobbin Threads
Tension Adjustment of Bobbin Threads
Balance of Thread Tension
Needle Thread Tension
Adjustment of Presser Foot P~Essure
Timing between Rotating Hook Motion and Needle Motion
Adjustment of Feed Dog Height
Relationship between Rotating Hook Motion and Take-Up Lever Motion
Relationship between Hook.motion and Opener Motion
Relationship between Needle Motion and Feed Dog Motion
Installation of Movable Knife
Adjusbnent of Thread Trimmer Cam
Adjustment of Meshing Pressure of Movable Knife and Fixed Knife
Sharpening of Fixed Knife
Adjustment for Change of Needle Gage
Wiper Adjustment
Specifications
Thread Tension Regulator Mechanism
Needle Bar Rocking Motion Mechanism
Stitch Regulator Mechanism
Lower Shaft & Feed Rock Shaft Mechanism
Hook Saddle Mechanism
Wiper Mechanism
Oil Lubrication Mechanism
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HIGH LEAD
GC20528
series
Twin-Needle
High Speed Split Needle Bar Lockstitch
Sewing Machine
Instruction Manual
Parts Catalog
SHANGHAI HUIGONG N0.3 SEWING MACHINE FACTORY
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