Adjusting The Opening Amount Of Auxiliary Hook; Adjusting The Presser Foot Lifting Switch - JUKI HZL-F series Service Manual

5-14 Adjusting the opening amount of auxiliary hook

Adjustment procedure
1. Adjust the adjusting screw to the distance shown in the enlarged partial view.
6 ± 0.2 mm
Enlarged partial view
Caution: If the auxiliary hook still keeps the thread after completion of needle threading, or if the auxiliary
hook releases the thread before the needle threading hook catches the thread, adjust the adjusting screw.
(The amount and timing of opening can be adjusted.)

5-15 Adjusting the presser foot lifting switch

○ Remove the face cover, the thread tension cover and the spool cover.
Adjustment procedure
1. Loosen the adjusting screw of the presser foot lifting switch. Adjust the position of the presser foot lifting
switch so that the sewing machine stops when the presser foot lever is raised by 5 mm or more while the
machine is in operation.
Adjusting
screw
– 21 –
Auxiliary hook
Adjusting screw of the
presser foot lifting switch