Thread Trimmer Cam Timing; Alternate Vertical Dial; Installing Position Of The Detection Switch Of The Amount Of Alternate Vertical Movement - JUKI LS-1340 Manual

5) Thread trimmer cam timing

Engraved marker dot
on machine arm
Conditions : Engraved marker dot on handwheel is aligned with engrared marker dot on machine arm.

(2) Alternate vertical dial

1) Installing position of the detection switch of the amount of alternate vertical movement

1
Detection switch of amount of
alternate vertical movement
Standard Adjustment
Red engraved
marker dot
Handwheel
Standard Adjustment
™ Sewing speed of LS-1342 and LS-1342-7
Alternate
vertical dial
Bushing
8±0.1 mm
Convex section
−
To come in close contact
with each other
Hook driving shaft
2
3
Section R comes in close contact
with thread trimmer cam roller.
Amount of alternate vertical
movement of the walking foot and
presser foot
Less than 2.5 mm
2.5 mm to less than 4 mm
4 mm to less than 4.75 mm
4.75 mm to less than 6.5 mm
Top cover
2
Hole of section A
28
−
1
4
Stitch length :
6 mm or less
2500 rpm
2200 rpm
1800 rpm
1600 rpm
Spring
Pin
Red
Green
White
Black