JUKI LH-3500A Series Instruction Manual page 30

[LH-3568A, 3568A-7, 3588A and 3588A-7]
❹
❷
❸
❶
3) If the needle-to-hook relation is different from the afore-mentioned standard adjustment, remove needle
clamp screw ❷ and turn needle clamp ❶ by one revolution (the extent of adjustment : 0.6mm).
The needle-to-hook relation can also be adjusted by removing screw ❹ from the spring shoe and turning
spring shoe ❸ by a half revolu tion (the extent of adjustment : 0.3mm).
[Adjusting procedure for DP X 17(135x17) needle]
When replacing the needle with DP X 17(135x17), replace needle clamp ❶ . (Needle clamp for DP X
17(135x17) is an optional part.) Use the same engraved marker line of the needle bar for DPx5(134). Adjust-
ing procedure is the same as that of DPx5(134).
[Common]
❶
0.01 to 0.05mm
❷
• Adjust the needle and the hook as follows.
[Adjusting procedure for DPx5(134)
needle]
1) Set the stitch dial at 2.5 for the S type or
2) Turn the handwheel to align the blade
❸
❷
• Determine the position of the hook.
1) Loosen three setscrews ❶ 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 ❺ in hook
driving shaft saddle ❹ , and move hook driving
shaft saddle ❹ to the right or left to adjust so
that a clearance of 0.01 to 0.05 mm is provided
between blade point ❷ of the hook and needle
❸
❸ . Then tighten setscrews ❺ .
3) Next, in the state described in step 1), align the
blade point of hook with the center of needle and
tighten setscrews ❶ in the screw gear (small).
– 28 –
3 for the G type.
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 rock-
ing 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 1.2 mm.
❺
❺
❹
❺
❺