Automatic Presser Foot Lifting; Auto-Lifter Cam Lever - JUKI HZL-X Series Service Manual

6-20 Automatic presser foot lifting

6-20-1 Auto-lifter cam lever

○ Remove the front panel and the microcomputer PCB.
Adjustment procedure
1. Check to be sure that auto-lifter cam 1 is at its origin position (see the figure below). (Turn the power ON
before starting the adjustment to bring auto-lifter cam 1 to its origin position.)
2. Assemble the throat plate. Assemble the standard presser foot (presser foot A) in the presser foot holder.
Lower the presser foot.
At this time, check to be sure that the feed dog does not appear above the top surface of throat plate.
3. Loosen the setscrew 2 of the cam lever.
4. Place 0.3 mm thickness gauge A between presser bar position bracket 3 and knee-lifter plate 4 . Press
cam lever arm 5 downward to remove the slack of wire. Then, tighten cam lever setscrew 2 .
B
1
C
1
6
2
Origin position:
Cam lever pin B
must be positioned
on the left side of
cam mark C .
6
5
Press downward
A
– 31 –
3
3
Place 0.3 mm
thickness gauge
A in this section.
4
2
5
Press downward