Elna International Corps. SA 6004 Service manual
CONTENT
Disassemble and assemble the external parts
Top cover and Face Plate 1
Base and Bed Cover 2
Belt Cover 3
Front Panel 4
To Replace and Adjustment
Presser Bar Height 5
Needle Centering 6
Needle Bar height 7
Hook and Feed timing 8
Clearance between Needle and Hook 9
Backlash of hook drive gear and lower shaft gear 10
Feed Dog height 11
Upper Shaft Shield Plate position 12
Upper Thread Tension 13
Stretch Stitch Feed balance 14
Needle Threaded Plate 15
Buttonhole Lever and Sensor 16
To replace electrical components
Circuit Board A 17
Circuit Board C 18
Circuit Board C and Fuse 19
DC Motor 20
Transformer 21
Machine Socket 22
Buttonhole Lever 23
Circuit Board K and F 24
Buttonhole Sensor 25
Wiring Diagram 26
General Function Check and Test Program 27-30
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