Juki LUH-521 User Manual
aJUKI
2-Needle, Unison Feed, Lockstitch
Industrial Sewing Machine with Reverse Feed
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LUH-521
PARTS LIST
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BE5210SOPJA
No.0066-04
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CONTENTS
~
~
1. FRAME & MISCELLANEOUS COVER COMPONENTS
iili$*•1Vl1~
2.
MAIN
3. NEEDLE BAR & FEED ROCK SHAFT COMPONENTS
4.
PRESSER
5. HOOK SHAFT &
6. REVERSE FEED CONTROL LEVER COMPONENTS
7. KNEE LIFTER &
SHAFT & THREAD TAKE·UP COMPONENTS
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tt•,
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31i:~IVJ1~
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8. THREAD STAND
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9. BELT COVER & THREAD WINDER COMPONENTS
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1J.~<-,
10. TABLE OF EXCHANGING GAUGE PARTS
:)t:jiij-::;$.§L-
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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BAR & WALKING FOOT COMPONENTS
..1:.~
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VERTICAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HOOK COMPONENTS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL
RESERVOIR COMPONENTS
)~~IIVJ1~.................................................
UNIT
COMPONENTS (SPECIAL ORDER PARTS)
IVH~(~jjiJ~.iX$.§L)........................................
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III
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11
13
15
.
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16
, 17
NUMERICAL
~51
INDEX
OF PARTS
...............................
18
II
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/
{foLUH·&211
/
12
I
/3
40
I
I
I
I
I
I
I
I
I
I
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0
Ref. Note
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No.
1
2
·3 . B1140:.·
4
5
6
7
8
---y
10
11
12
13
_1_4_
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15
16
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18
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22
23
24
25
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28
29 •
30
31
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33
34
35
36
37
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39
40
41
42
43
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45
46
47
48
49
50
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52
53
54
55
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511
59
60
61
62
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Part
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15/64-28
RING
WHEEL,
9/32-28
9/32-28
L=16
L=16,5
SHAfT
SCREW
WHEEL
15/64-28
15/64.·28
SHAfT
BUSHING
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SHAfT
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15/64-28
SHAfT
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15/64-211
BELT
WHt:El
RETAINING
L=10,5
lOWER
RING
WHEEL,
9/64-40
CLUTCH
CLUTCH
CLUTCH
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SCREW
CLUTCH
CLUTt;H
CLUTCH
1/4-40
L=
SHALL
SHALL
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SPRING
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6,35
COUNTER-HOOK
COUNTER-HOOK
BODY
L=11. 0
scription
LEVER
LEVER
ASH,
L=10,5
ROO
PIN
L=
4,5
L"'6
L"'7
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Lc
4.5
8,5
L=
L•12
UPPER
L=20
L•17,0
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REAR
L•7
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LOWER
3,5
LINK
LINK
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9/32-2:1
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L=16 1
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L=16,5 1
L=7
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L=16
L=16,5
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l=-20
L=1
7 1
(1)
n
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l=7
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f/3
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f/3-!J:.O~
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IJI
l=11
Amt
~eq
f'
<:
1
(1)
(1)
(0
,1>
(1)
(0
.1>
1
1
1
,1)
1
1
-
(0
,1>
,
1
-
1
1
1
(1)
(0,1>
1
(1)
<1>
1
(2)
2
1
1
1
,
1
1
1
1
(1)
<2>
-
(1)
(1)
1
1
1
(1)
(1)
(1)
(1J
(1)
(1)
(1)
<2>
(1)
(,
(1)
<2>
:·
)
.
.
-4-
3. NEEDLE BAR & FEED ROCK SHAFT COMPONENTS
iNf,
*.IJI~
'J
fi!IIVH~
4
17
8 9
7
5
12
18
II
0
19
57
I
L----!
41
43
42
-5-
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