JUKI LH-3528 Instruction Manual page 21

[LH-3568, 3568-7]
4
2
3
1
3) If the needle-to-hook relation is different from the afore-mentioned standard adjustment, remove
needle clamp screw 2 and turn needle clamp 1 by one revolution (the extent of adjustment : 0.6mm).
The needle-to-hook relation can also be adjusted by removing screw 4 from the spring shoe and
turning spring shoe 3 by a half revolu tion (the extent of adjustment : 0.3mm).
[Adjusting procedure for DP X 17 needle]
When replacing the needle with DP X 7, replace needle clamp 1 . (Needle clamp for DP X 7 is an
optional part.) Use the same engraved marker line of the needle bar for DP X 5. Adjusting procedure is
the same as that of DP X 5.
1
0 to 0.05mm
2
• Adjust the needle and the hook as follows.
[Adjusting procedure for DP X 5 needle]
)
2)
3
2
[Common]
• Determine the position of the hook.
) Loosen three setscrews 1 in the screw gear
(small), and turn the handwheel to lift the
needle bar from its lowest position by 2.2 mm.
2) In this state, loosen four setscrews 5 in
hook driving shaft saddle 4 , and move hook
driving shaft saddle 4 to the right or left to
adjust so that a clearance of 0 to 0.05 mm is
3
provided between blade point 2 of the hook
and needle 3 . Then tighten setscrews 5 .
3) Next, in the state described in step ), align
the blade point of hook with the center of
needle and tighten setscrews 1 in the screw
gear (small).
– 9 –
Adjust the stitch dial to 2.5 on the scale.
Turn the handwheel to align the blade
point of hook with the center of needle
when the needle bar goes up by 2.2
mm from the lowest position (lower
engraved marker line of the needle bar
aligns with the bottom end of the needle
bar rocking base). At this time, it is the
standard that the distance between the
top end of needle eyelet and the blade
point of hook becomes .2 mm.
5
5
4
5
5