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(2) Automatic presser foot lifter
1) Installing the automatic presser foot lifter (List A)
1. Remove the side plate located on the anti-operator’s side of the machine arm. (Removing parts list)
2. Install two elbows !0 to automatic presser foot lifter cylinder 1.
3. Install cylinder connecting screw 3 to the presser foot lifter cylinder.
For the standard, adjust the distance from the end face of piston rod of the presser foot lifter cylinder to the
end face of cylinder connecting screw to 24 mm, and tighten nut 4.
4. Tighten cylinder stay, front !1 and presser foot lifter cylinder stay, rear !2 to the presser foot lifter cylinder
with cylinder installing screw 2.
5. Install the presser foot lifter cylinder which has been assembled at the above step 4. to to the machine arm
with cylinder stay installing screw !3.
6. Assemble automatic presser foot lifter lever B 7 with automatic presser foot lifter lever A 6.
(Insert automatic presser foot lifter lever shaft 9 into the holes of both levers and tighten with hexagon
headed bolt 8.)
7. Install automatic presser foot lifter lever A which has been assembled at the above step 6. to the machine
arm with automatic presser foot lifter lever shaft 9.
(Groove of automatic presser foot lifter lever B 7 enters hinge screw 5 attached to cylinder connecting
screw 3.)
8. Install pneumatic components.
9. Insert the air hose and check the operation.
When actuating the automatic presser foot lifter, make sure that the distance from the bottom face of the
presser foot to the top surface of the throat plate is 16 ± 0.5 mm.
When adjustment is required, remove automatic presser foot lifter lever shaft 9 and automatic ptresser
foot foot lifter lever A 6, loosen nut 4, and turn cylinder connecting screw 3. (Turning in the direction of A
will decrease the distance, or in the direction of B will increase it.)
After the completion of adjustment, tighten the nut.
10. Make sure that a clearance of 0.5 to 1.5 mm is provided between automatic presser foot lifter lever A 6 and
the thread release supporting plate when the presser foot is lowered.
11. For the kit A, tighten knee lifter knee switch B (asm.) 1 with wood screws 2. (List D)
A
B
1
2
3
4
5
6
7
8
9
!0
!1
!2
!3
!0
2
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