w
q
y
e
r
t
!5
i
o
y
t
!2
!3
!4
Adjusting Tension Release Mechanism for Knee Lifter
Adjusting tension release claw
1. Remove the top cover.
2. Lower the presser foot and turn the thread
tension dial
q
until the convex part of tension
dial
w
is set at the tension release claw
e
.
In this condition, loosen screw A
r
and
adjust the tension release adjusting plate
t
to touch the tension discs supporter
y
.
The tension discs should be opened slightly.
3. Tighten screw A
r
.
To Adjust the thread releasing plate
4. Lower the presser foot, turn the thread
tension dial until the flat surface position
touches the releasing claw
e
.
5. Loosen screw B
u
.
6. Set the thread releasing lever
i
so it touches
the thread release plate
y
slightly and
tighten screw B
u
.
7. When the presser foot is raised, the tension
discs should be opened.
Note: The clearance between the tension disc
supporter and the thread releasing plate
should be 0.5 to 1.0 mm
o
when the
presser foot is lowered.
Check “the presser foot P sensor”.
The presser foot sensor switch
!0
must
be OFF when the convex of tension dial
q
is set at the tension release claw.
To adjust the knee lifter thread
releasing plate.
8.
Lower the presser foot and turn the
handwheel until the feed dog raises to its
highest position.
9.
The clearance between the presser bar
actuator arm
!1
and the knee lifter thread
release plate
!2
should be 0.2 - 0.6 mm
!3
.
Loosen screw C
!4
to adjust the clearance.
10. Reattach the top cover.
q
Thread Tension Dial
w
Convex
e
Tension Releasing Claw
r
Screw A
t
Tension Releasing Adjusting Plate
y
Tension Disc Supporter
u
Screw B
i
Tension Releasing Lever
o
Clearance 0.5-1.0 mm
!0
Presser Foot Sensor Switch
!1
Presser Bar Actuator
Arm
!2
Knee Lifter Tension Releasing Plate
!3
Clearance 0.2-0.6 mm
!4
Screw C
!5
Thread Releasing Plate
u
!0
!1
16
Summary of Contents for Memory Craft 10001
Page 1: ...SERVICING MANUAL...
Page 42: ...40...
