Table of contents
1. MOTOR BELT TENSION .......................................................................................................3
2. TIMING BELT TENSION .......................................................................................................3
3. BACKLASH OF HOOK GEAR...............................................................................................4
6. SETTING THE FEED DOG ...................................................................................................7
11. HEIGHT OF NEEDLE BAR ...............................................................................................12
13. TIMING OF THE HOOK ....................................................................................................14
18. FLATNESS OF THE BASE ...............................................................................................19
20. BOBBIN WINDER .............................................................................................................21
Service Program ......................................................................................................................22
A. Light Cover ..........................................................................................................................32
B. Thread Tension Cover .........................................................................................................33
C. Needle Plate .......................................................................................................................33
D. Base ....................................................................................................................................33
E. Front Enclosure ...................................................................................................................34
F. Unit Cover ............................................................................................................................36
G. Top cover ............................................................................................................................37
H. Rear Enclosure ...................................................................................................................37
H. Rear Enclosure ...................................................................................................................38
G. Top cover ............................................................................................................................38
F. Unit Cover ...........................................................................................................................38
E. Front Enclosure ...................................................................................................................39
D. Base ....................................................................................................................................41
C. Needle Plate .......................................................................................................................41
B. Thread Tension Cover .........................................................................................................41
A. Light Cover ..........................................................................................................................42
A. Y carriage cover A ...............................................................................................................43
B. Y carriage cover B ...............................................................................................................43
C. X top cover ..........................................................................................................................44
C. X top cover ..........................................................................................................................45
B. Y carriage cover B ...............................................................................................................46
A. Y carriage cover A ...............................................................................................................46
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