Adjusting The Stitch Length; Needle-To-Hook Relation - JUKI LH-3528 Instruction Manual

4-13. Adjusting the stitch length

3
1

4-14. Needle-to-hook relation

WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
[LH-3528, 3528-7]
• Adjust the needle and the hook as follows.
) Adjust the stitch dial to 2.5 on the scale.
2) Turn the handwheel to bring the needle bar to the lowest position and loosen needle bar connecting
stud clamping screw 1 .
3) Determine the height of needle bar. The upper two of engraved marker lines are for DP X 5 needle,
and the lower two of them are for DP X 7 needle.
[Adjusting procedure for DP X 5 needle]
Adjust top engraved marker line A of needle bar 2 to the bottom end of needle bar rocking base 3 ,
and tighten the needle bar connecting stud clamping screw 1 . At this time, the needle bar goes up by 2.2
mm from the lowest position (adjust the second engraved marker line B to the bottom end of needle
bar rocking base 3 ) and the blade point of hook aligns with the center of needle. Then the distance
between the top end of needle eyelet and the blade point of hook becomes .2 mm.
[Adjusting procedure for DP X 17 needle]
Use the lower two of the engraved marker lines, and perform the adjustment by the same procedure as
that of [Adjusting procedure for DP X 5 needle].
Turn stitch dial 1 counterclockwise (clockwise)
to set the value on the dial corresponding to a
desired stitch length to the marker dot 3 engraved
on the machine arm.
When it is hard to turn stitch dial 1 , turn it while
slightly depressing reverse feed control lever 2 .
2
• Reverse feed operation
)
2)
3)
3
A
2
1
– 8 –
Depress reverse feed control lever 2 .
Reverse stitches are made as long as you
keep depressing the lever.
Release lever, and the machine will run
forward.
B