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JUKI DDL-9000C-F User Manual

JUKI DDL-9000C-F
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– 83 –
7-1. Needle-to-hook relationship
7. ADJUSTMENT OF THE MACHINE HEAD (APPLICATION)
Adjust the timing between the needle and the hook
as follows :
1) Adjusting the needle bar height. Turn the hand-
wheel to bright the needle bar down to the lowest
point of its stroke, and loosen setscrew .
2) Adjusting the needle bar height. Align marker
line (For a DB needle : marker line A, For a DA
needle : marker line C) on needle bar with the
bottom end of needle bar lower bushing , then
tighten setscrew .
3) Position the needle and the hook a.
Loosen the three hook setscrews, turn the hand-
wheel in normal rotation and align marker line
(For a DB needle : marker line B, For a DA nee-
dle : marker line D) on ascending needle bar
with the bottom end of needle bar lower bushing
.
4) In this state, align hook blade point with the
center of needle . Provide a clearance of 0.04
to 0.1 mm (reference value) between the needle
and the hook, then securely tighten the three hook
setscrews.
B
A
C
D
A
B
a
0.04 to 0.1 mm
1. If the clearance between the blade
point of hook and the needle is
smaller than the specied value, the
blade point of hook will be damaged.
If the clearance is larger, stitch
skipping will result.
2. The needle bar of the DDL-9000C-
FMS is processed with special
black coating. In the case you nd it
difcult to visually check the location
of marker lines, illuminate the needle
bar with a ashlight or the like to
make it easier.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.

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JUKI DDL-9000C-F Specifications

General IconGeneral
BrandJUKI
ModelDDL-9000C-F
CategorySewing Machine
LanguageEnglish

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