Adjusting The Disk Opening Amount; Tension Disk Opening Amount - JUKI HZL-G Series Service Manual

6-10 Adjusting the disk opening amount

6-10-1 Adjusting the thread tension release adjusting plate
○ Remove the face cover, the thread tension cover and the spool cover.
Adjustment procedure
. Raise the presser foot lifting lever.
2. Loosen the adjusting screw and adjust the thread tension release adjusting plate so that the top end of
claw of the opening arm aligns with the marker dot on the thread releasing arm.
Adjusting
screw

6-10-2 Tension disk opening amount

○ Remove the face cover, thread tension cover
and the spool cover.
Adjustment procedure
. Maximize the tension with the thread tension
adjustment dial. Raise the presser foot lifting lever.
2. Adjust the clearance between tension disks (A)
and (B) to  mm by turning the thread tension
float adjusting screw.
Thread tension release adjusting plate
– 9 –
Thread releasing arm
Opening arm
Align with the marker dot
Disk A
1 mm
Disk B