Nakajima DD-N73, DDU-N73 User Manual
NAKAJIMA
PARTS
ARM
SEWING
MODEL
SINGLE
UPPER
TYPE
INDUSTRIAL
MACHINE
f)IJ-/t/13.
NEEDLE
&
LOWER
BOOK
QI>U-N?i
LOCKSTITCH
FEED
,---
1
I
I
I
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38
Fig
Parts
No.
No.
1027
1
2
3
4
5 2002 Tension
6
7
8
9 s
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29 s 051
30
Tension
1024
Tension
2001
Tension
1023 Tension disc
2003
s 050
2004
Thread
051
Tension
NOOl
2005
Tension
2006
Presser
s 052
2007
N
001
2008
Face
s 053 ·
s 053
Preser·
P002
Presser
2009 Slack thread guide 1
Tension
2010
nlate
2011
Tension
2012
Tension
2013
Tension
Take-up
2014
Take-up
2015
Tension
s 009
2016
Take-up
2017
Face
Description
regulating nut 2
release
washer
spring
stud
·
Bracket
·
Screw
eyelet
· Scr·ew 1
stud
nut
releasing
· Hinge
· Br·acket
· Hinge
plate 1
Screw
bar
wheel
wheel
wheel 1
wheel
wheel
·
Screw
plate
pin
bar
lifter
screw
screw
nut 1
lifter
bracket
screw
bar·
lifter
bracket
pin
suppo1·ting
felt
felt
stud
spring (A)
spring (B)
stud
screw
spring support plate 1
thread
guide
MACHINE
Amt
Req
1
2 33
2
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
1
1
1
1
1
FRAME & TENSION
Fig
Parts
No. No.
31
s
051
32
2018
2120
34
s
055
35
2019 Arm cap
36
s 056
W004
37
38
2020
39
s 057
40
2121
41
c 2002
c 2013
42
PARTS
Side
Side
Throat
Lifter
Tension
Tension
COMPONENTS
Description
•
Screw
(A)
plate
(B)
plate
·
Screw
·
Screw
·Washer
plate 1
·
Screw
lifting lever
asm.
wheel
stoppc1·.
asm.
screw
Amt
Req
1
1
2
3
1
1
1
2
1
1
1
c , /
' -
' - ,
' '
:
' '
' -
' ' -
I 19
56
20~'-,
:\8
I
.;0-g
-------
I \6 I
.l\)
~~~,I
41
', '-@!
/
.....,
....
I I
0
'-.
,r1
"-,
I
\@J!ci
1
4;)1
~-------
~
52
.l
2
2 MAIN
Fig
Parts
No.
No.
2021
1
2
3
4 2023
5
6
7 2025 Needle
Needle bar upper bushing 1
s 058
2022
Needle
s
058
2024
8 s 059
2026 Take-up cam 1 39 2042
9
p 003
10
11
s 060
2027 Needle
12
13 N 001
2028
14
15
16
17
18
19
20 s 063
21
22
23
24
25
26
27
28
29
30
Needle
2029
Needle·bar
s
061
Take-up
2030
s 062
2031
Thread
2032
2033
2034
N
001
2035
Lifting bell
2036
p
004
2037
S064
2038 • Spring
Description
Screw
·
bar
· Lower bushing
·
Screw
·
Thread
guide
(DDx
1
#25)
screw
· Clamp
·Pin
Screw
·
bar
crank
·Nut
bar
connecting
connection 1
•
Screw
cam
• Hinge
screw
take-up lever
· Hinge
screw
·Roller
·Stud
crank
·Guide
·Pin
· Adjusting
· Adjusting
link
roller 1
·Washer
·Nut
screw
set
screw
lever 1
SHAFT & NEEDLE
Amt
Req
1 32
1 33
1 34
1
1
1
1 38
1
2
1
1
1
2
1
1
1
1
1
1 53 s
1
1
1
1
1
1
BAR COMPONENTS
Fig
Parts
No.
No.
31
2039
· Hinge
woos
s 065
N
001
35
2040
36
s 066
37
P005
2041
40
2043
41
s 018 ·
42
2044
43 2045
44
s 018
45
2046
46
s 025
47
2047
48
s 009
49
2048
50
s
067
51
2049
52
2050
021
54
s 068
55
2051
56 c 2031
57
c 2026
58
c 2035 Lifting
59
C2029
60 c 2046
· Supporting block
Main
shaft
·Front
• Bushing felt
Front
· Bushing
· Intermediate bushing 1
Feed
drive
·
Screw
Main
shaft
Screw
·
Lifter
lifting lever
· Hinge
· Spring
Balance wheel 1
· Adjusting
Screw
·
Main
shaft key 1
Thread
Take-up
bell
Needle bar connection asm.
Feed
drive
Description
stud
·
Washer
·Screw
·Nut
Screw
·
·Pin
bushing
bushing
screw
oil
cord 2
·Screw
eccentric
rear
bushing 1
screw
screw
take-up lever asm. 1
cam asm. 1
crank
asm. 1
eccentric
a sm. 1
Amt
Req
1
1
1
1
1
2
2
1
1
3
1
1
1
1
1
1
1
1
1
2
1
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