Installing Position Of The Alternate Vertical Movement Amount Detecting Switch - JUKI LU-1510 Engineer's Manual

12) Installing position of the alternate vertical movement amount detecting switch

①
Fig. 25
Alternate vertical movement
amount detecting switch
Convex
Scale of alternate vertical
movement dial
Standard Adjustment
● Sewing speed of LU-1510-7
Alternate vertical
Amount of alternate vertical
movement dial
movement
2.5 to less than 4 mm
4 to less than 4.75 mm
4.75 to less than 6.5
• Speed in terms of the amount of alternate vertical movement can
be automatically changed over in 4 stages.
②
Bush
8 ± 0.1 mm
Fig. 26
S w i t c h ( u p p e r )
(Wires : Red/green)
1 to 2.5
2.625 to 4
4.125 to 4.75
4.875 to 6.5
Stitch length : Less
than 6 mm
Less than 2.5 mm 3,000 rpm
2,400 rpm
2,000 rpm
1,800 rpm
Top cover
Hole in section A
Red Green
White
Black
Switch (lower) (Wires :
White/black)
OFF
OFF
ON
ON
− 15 −
Stitch length : More than 6 mm
to less than 9 mm
2,000 rpm
2,000 rpm
2,000 rpm
1,800 rpm
Pin
Spring
OFF
ON
ON
OFF