Initial Position Of The Moving Knife; Timing Of The Thread Trimming Cam - JUKI LZ-2290 Series Manual Manual

(25) Initial position of the moving knife

™ Moving knife pin 1 should be aligned with marker dot 2.
™ Acceptable range of the position of moving knife is as wide as the marker dot.
Moving knife
pin 1
Marker dot 2

(26) Timing of the thread trimming cam

(See the figure shown above.)
™ Press roller arm 6 until roller 4 fits in the groove in thread trimming cam 8. Now, lightly turn the
main shaft handwheel carefully in the reverse direction until it stops. At this time, the marker dot
engraved on the machine arm should be aligned with the red marker dot engraved on the handwheel.
Adjust the thread trimming cam longitudinally within the width of a dot.
Standard Adjustment
Marker dot
Roller arm 6
(Rearmose)
Standard Adjustment
Machine arm Width
of adjustment
32
Knife driving arm 7
Nut 3
Cam 8
Roller 4
Latch
(Frontmost)
Screw 5