Brother T-8722B User Manual
T-8722B
PARTS
BOOK
TWIN
AND
NEEDLE
THREAD
DIRECT
TRIMMER
DRIVE
LOCK
STITCHER
WITH
LARGE
HOOK
The
latest
parts
Navigation),
information,
refer
brother.
to
the
Parts
Navigation.
http7/partsbook.brother.co.jp/partsnavi/chn/
httiD://partsbook.brother.co.jp/partsnavi/eng/
BROTHER
INDUSTRIES,
T-8722B-40
LTD.
]
3:
c
Description
of
model
piate
BROTHER
INDUSTRIES,
T-8722B-40
LTD.
C
3:
Medium-weight
5:
Heavy-weight
materials
materials
1.
2.
^iu#«i+^w^^.
3.
is^T-^nm^o
s
A.
B.
±§4^M
C.
D.
SBSI^M
E.
f.mmmM.
G.
H.
J2.
mmmm
K.
L
M.
N.
P.
Q.
R.
si.
nummmtmw
-
-
11
13
15
i7
21
23
25
29
31
33
35
37
39
1
3
5
7
9
S2.
mmmw.
T.
u.
V.
z^.mn
Z2.
mn
Wa.
- -
-
sp.
Ga.
41
43
45
47
49
51
53
54
55
57
1.
This
2.
Parts
3.
Parts
book
was
are
subject
supplied
Notes
prepared
to
changes
as
complete
A.
Machine
B.
Upper
C.
Needle
D.
Presser
E.
Feed
F.
Quick
G.
Feed
H.
Gauge
J1.
Rotary
for
based
on
information
in
design
assemblies
body
shaft
mechanism
bar
rocking
foot
mechanism
mechanism
reverse
shaft
mechanism
parts
hook
mechanism
mechanism
using
this
available
without
prior
notice.
are
circled.by a dotted
CONTENTS
mechanism
parts
in
November
line.
book
2006.
1
3
5
7
9
11
13
15
17
J2.
Rotary
K.
Lower
L
Lubrication
M.
Threading
N.
Bobbin
P.
Thread
Q.
Tension
R.
Thread
SI.
Control
82.
Control
T.
Quick
U.
Power
V.
Presser
Z1.
Accessories
Z2.
Accessories
Wa.
Warning
Sp.
Different
hook
mechanism
shaft
mechanism
mechanism
winder
trimmer
release
wiper
box
and
box
mechanism
reverse
supply
foot
lifting
labels
parts
mechanism
mechanism
mechanism
mechanism
motor
mechanism
switch
mechanism
equipment
solenoid
list
mechanism
set
mechanism
(Option
parts)
21
23
25
29
31
33
35
37
39
41
43
45
47
49
51
53
54
Ga.
Gauge
Index
parts
list
55
57
A.
p15^ / Machine
2 11
body
T-8722B-050
A
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
.
/
Machine
140063001
SA3924001
SA2440001
SA2929001
062500816
SA2441001
062501216
SA2442101
062501416
062501016
SA2443101
062500616
SA2444101
SA2445101
SA2447001
SA2479001
SA2449001
SA2479001
S36663051
S34438051
116010001
SA2929001
SA2929001
S37060001
body
aa
^ftjSg12.5
dlitTMSXS
^ifTM5X12
dllfJMSXM
djIfTMSXIO
!liirrM5X6
m^s
!lirrSM3.1840X4
!lirrSM5.1640X4
12.5
12.5
DOWEL
PIN
POSITIONING
FACEPLATE
RUBBER
SCREW
REAR
SCREWPANM5X12
MOTOR
SCREW
SCREW
DUST
SCREW
BED
BED
SLIDE
BOBBIN
SLIDE
BOBBIN
SLIDE
SCREW.
SET
RUBBER
RUBBER
LABEL.
GAP.
PAN
COVER
COVER
PAN
PAN
PROTECTOR
PAN
LEG
L
LED
S
PLATE.
WINDOW
PLATE
WINDOW
PLATE F ASSY
FLAT
SCREW.
CAP.
CAP.
GROUNDING
NAME
PIN
12.5
M5X8
M5X14
M5X10
M5X6
LA
ASSY
ASSY,
R
SM3.1840X4
SM5.1640X4
12.5
12.5
OF
PARTS
RM
26
26
SA2040001
SA2041001
/m)
<Except
LABEL.
<For
LABEL,
for
CAUTION
China
CAUTION
China>
JPN/ENG
only>
CHN/ENG
T-8722B-050
B
.
/
Upper
shaft
mechanism
f—27
%
T-8722B-109
B . ±.lrt / upper
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SA2452101
SA4089001
S25234001
S38707001
SA6166001
117006001
113014000
S25260001
SA1120001
S23651001
S25235001
S25236001
SA2460001
S38710001
S23651001
SA2461001
S38713100
062403512
028040242
025040232
SA2463001
SA2937101
SA2861101
012061036
SI3160001
SA2469001
062500816
SA4537001
SA3058101
SA3065001
SA3059101
062500816
shaft
nm.
1
±$fiDD
1
1
1
1
1
?ft^L=60
1
2
@$SlifTM6X5
1
2
1
1
4lfT
1
1
4
l^iltTMBXe
1
1
3
ii$TM4X35
3
3
1
1
mmnmn
1
2
iliflMBXIO
1
1
2
SlfT
1
1
1
1
1
iirr
mechanism
6004ZZ
6004ZZNR
MB
M6X10
6204ZZNR
M4
[2-1
M5X8
M5X8
UPPER
SHAFT.
THREAD
BALL
BALL
CRANKSHAFT
WICK.
PUSHER
SET
BOBBIN
SET
SCREW
SET
PRESSER
BALL
SET
TIMING
FAN
SCREW
WASHER
WASHER
TIMING
THREAD
THREAD
SET
T-TAKE-UP
THREAD
SCREW
DUST
SHELTER
FELT
HOLDER.
SCREW
TAKE-UP
BEARING.
BEARING.
L=60
SCREW
WINDER
SCREW
MB
SCREW
ADJUSTING
BEARING.
SCREW.
PULLEY. U DD
PAN
SPRING
PLAIN M 4
BELT
TAKE-UP
TAKE-UP
SCREW
SLIDE
TAKE-UP
PAN
COVER
PLATE
SHELTER
PAN
NAME
DO
CRANK
6004Z2
6004Z2NR
SOCKET
DRIVING
SOCKET
SOCKET
6204ZZNR
SOCKET
M4X35
2-4
LEVER
S-SHAFT
SOCKET
BLOCK
LEVER
M5X8
PLATE
M5X8
OF
(FT)
M6X5
WHEEL
(FT)
M6X6
(FT)
M6X10
UNIT
(FT)
ASSY.
(FT)
M6X10
ASSY.
COVER
PARTS
M6X6
UNIT
RM
L2-L
2
T-8722B-109
C
.
3 15
/
Needle
bar
rocking
mechanism
36
21—&
T-8722B-115
2
3
4
5
6
7
8
9
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
10
11
12
13
14
SA4124301
SA3854001
SA2474201
018401036
SA2475101
SA3710001
062350816
112728001
SA3711101
SA3712001
SA2482001
SA2483001
SA2484001
148394000
SA4007001
062500616
SA3848001
S07465000
SA3852001
SA2485001
S25260001
SA2486101
062500816
062061616
SA2489001
018062032
118735002
SA2490101
S23460001
SA4117001
012060636
SA4118001
018062532
SA2493001
SA2494001
018062032
Needle
nm.
1
1
1
!liH^M4X10
1
1
1
llg$TM3.5X8
1
?S^L=50
1
1
1
1
1
mm
1
1
1
SifT
1
1
1
mm
0:$ilfTM6X5
1
1
^fTM5X8
1
ilfTM6X16
1
1
1
mm
1
4i$T
1
l^ifT
1
1
rt
A^di1tM6X25
mm
1
1
bar
rocking
M5X6
L=200
M6X20
M6X5
Si
M6X6
M6X20
mechanism
NAME
OF
PARTS
NEEDLE
NEEDLE
SLIDE
BOLT
NEEDLE
NEEDLE
SCREW
WICK.
CRANK
SLIDE
NEEDLE
CASE
WASHER.
CAP.
FELT
SCREW
FELT
WICK
FELT
SET
SET
R
BUSH.R
SCREW
SCREW
NEEDLE
BOLT
WASHER
ROCKER
SCREW
P
LINK
SET
ZIGZAG
BOLT
WASHER.
NEEDLE
BOLT
BAR
BAR
BLOCK
SOCKET
BAR
BAR
PAN
M3.5X8
L=50
ROD,
BLOCK
BEARING
PLAIN
N-BAR
SUPPORT.
PAN
M5X6
SUPPORT.
L=200
SCREW
SCREW
PAN
PAN
COLLAR
SOCKET
M5X8
M6X16
BAR
SOCKET
LINK.
PAN
M6X5
SHAFT.
N-BAR
SCREW
SOCKET
LINK
SOCKET
PLAIN
BAR
SOCKET
ROCKER
BASE
SLIDER
M4X10
CLAMP
N-BAR
U
D
ROCKER
M6X20
N-BAR
BUSH.
M6X25
ROCK
M6X20
SHAFT
ASSY
(FT)
M6X5
LEVER
ROCKER
(FT)
M6X6
P
ARM
ASSY
P
RM
T-8722B-115
D
.
/
Presser
foot
mechanism
^15
32—
35
33—@1
<
I Option
39
parts
3.8
>
T-8722B-201
D.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
mmmm
/
Presser
SA2495001
062500816
SA1174001
SA1175001
SA7607001
S07346101
SA2496001
SA2498001
S25289001
SA2499001
S31006001
S39051001
S07351001
S07529001
048030342
SA2677001
012061832
021060306
SA2500001
SA2501001
SA2502001
SA1179001
S07349001
SA2504001
012500536
S07355051
062501216
021500106
SA2506001
SA2507001
SA1179001
SA2165001
SA1179001
SA4149101
021060306
S07350001
foot
mechanism
mm
1
1
fl
IifT
M5X8
1
1
1
1
1
mnn
1
1
1
1
1
!liifT(^mH)M3.5X12
1
1
M14
M14
M6X10
mmEz
1
1
^IfT
M6X18
1
1
mn&nmn
1
immmn
1
1
1
1
mm
fl
iirr
1
sirr
1
1
1
1
1
isiirrMs
1
m^ifTMS
1
1
1
mm
M6
M5X5
M5X12
MS
PRESSER
SCREW
PESSER
ADJUST
SPRING
PRESSER
PRESSER
GUIDE
BOLT
PRESSER
LIFTING
SCREW
TENSION
T-RELEASE
RETAINING
TENSION
SET
NUT3M6
KNEE
PRESSER
KNEE
SHOULDER
P-BAR
SET
SET
SPRING.
SCREWPANM5X12
NUT 1 M5
KNEE
KNEE
SHOULDER
SHOULDER
SHOULDER
ADJUSTING
NUT3M6
WASHER
BAR
PAN
ADJUSTING
SCREW
GUIDE
BAR
BAR
BRACKET.
(CP)
M6X10
BAR
LEVER
PAN
RELEASE
CONNECTING
RING
RELEASE
SCREW.
LIFTER
BAR
LIFTER
SCREW.
LIFTING
SCREW
SCREW
EXTENSION
LIFTER
LIFTER
SCREW.
SCREW.
SCREW.
SCREW
PLAIN
NAME
BUSH
M5X8
SCREW.
NUT
SPRING.-5
P-BAR
LIFTING
(S/P
W)
M3.5X12
PLATE
E3
WIRE
SOCKET
(FT)
C-ROD
ASSY
LIFTING
CONNECTING
M5
LEVER
COLLAR
SOCKET
(FT)
LEVER
BAR
MS
M6
M5
6
OF
CRANK
LEVER
SHAFT
PARTS
M14
ASSY
ROD
M6X18
ROD
M5X5
RM
ASSY
37
38
39
40
41
T-8722B-201
SI0780001
807529001
048030342
SA2677001
SA2578001
1
1
1
1
a^E3
<Option
TENSION
T-RELEASE
RETAINING
TENSION
PRESSER
parts>
RELEASE
CONNECTING
RING
E3
RELEASE
BAR
LIFTING
PLATE
WIRE
LEVER
ASSY
ROD
ASSY
E
.
/
Feed
mechanism
I
i
m
m
m
I
T-8722B-202
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
.
/
Feed
SA3062001
SA2511001
062501016
SA2512001
SA2515001
SA2516001
062060816
143611201
143612100
118954000
SA2791001
SA2585001
S25236001
SA2793001
018062032
143613051
143616001
048060342
S38428001
SA3056001
142746122
129458202
108549001
S50098101
100328001
SA2523001
S39830101
SA2796001
016061031
SA2526001
SA2527001
012060636
SA2528101
SA2529101
048080342
025100132
SA2530001
S07374109
SA2531001
SA2541001
SA6592001
104821001
062500816
SA2532001
062501216
025050236
S07376001
SA2533001
062060816
062501216
021500106
mechanism
nm.
1
1
1
1
di$T
1
1
1
1
1
1
fl
SifTM6X10
1
1
1
1
mmEs
1
1
1
1
!!ilfTSM4.76
1
1
1
1
m&mn
1
nn
1
mmTMvmi
1
1
1
1
|gSifTM6
1
1
mmEB
1
1
1
1
1
1
4lfT
1
^$TM5X8
1
1
airrM5xi2
1
1
1
1
SllifT
1
4ifTM5X12
1
M5X10
M6X8
M6X20
M6X10
M6X6
S10
M5
10.5
M6X8
M6X10
M5
FEED
REGULATOR
GUIDE
PLATE
SCREW
PAN
SLIDE
BLOCK
FELT
STOPEER
SCREW
PAN
F-ROCKER
FEED
NEEDLE
LEVEL
SET
SET
FEED
BOLT
LINK
SHAFT
RETAINING
STITCH
FEED
FEED
SCREW
ORING
POSITIONING
NOTCH
DIAL
SPRING
FEED
SET
CONNECTING
ECCENTRIC
SET
SHOULDER
SHAFT.
RETAINING
WASHER
SPACER
REVERSE
SPRING
REVERSE
SCREW
RUBBER
SCREW
STOPPER
SCREW
WASHER
FEED
SPRING
SCREW
SCREWPANM5X12
NUT 1 M5
CONNECTING
ROCKER
BEARING
FEED
SCREW.
SCREW
SOCKET
ROCKER
SOCKET
RING
LENGTH
REGULATING
REGULATING
SM4.76
SPRING
LOCK
LEVER
REGULATOR
SCREW
SOCKET
SHAFT
SCREW
SOCKET
SCREW
R-LEVERTR
RING
PLAIN S 10
STITCHING
STITCHING
M5
CAP.
PAN
PAN
PLAIN M 5
REGULATOR
HOOK
PAN
NAME
ASSY.
M5X10
ASSY
M6X8
CONNECTING
ECCENTRIC
SOCKET
(FT)
(FT)
ARM
7
M6X20
E6
DIAL.
7
STUD
SUPPORTER
PIN
7
(CN)
ROD
(FT)
M6
E8
LEVER
LEVER
10.5
M5X8
M5X12
SPRING
M6X8
OF
PARTS
11
ROD
WHEEL
M6
M6X10
M6X10
M6X6
RM
ASSY
ROD
7
PLATE
T-8722B-202
10
F . ^JH^M / Quick
reverse
mechanism
14
\
\
1
8 17
\
1
11
T-8722B-205
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
F
.
/
Quick
SA3072001
154729001
154730001
154731000
SA2535101
062500812
062061016
SA2992001
048060142
153138001
SA2536001
SA2540001
016061031
SA2992001
012060636
SA2539001
018062032
149095001
153132000
reverse
mm
Sitl
difT
^mmmc6
Ml
!!ii$TM6X10
mmm
SifTMeXB
mme
mechanism
E15
M5X8
M6X10
6.5
M6X20
L=13.5
QUICK
REVERSE
PLUNGER
RETAINING
RUBBER
SOLENOID
SCREW
SCREW
PIN
RETAINING
STOPPER
PAN
PAN
WASHER.
SOLENOID
QUICK
REVERSE
SET
SCREW
PIN
SET
SCREW
SOLENOID
BOLT
SOCKET
WASHER.
NYLON
TUBE.
RING
BRACKET
M5X8
M6X10
RING
PLAIN
LEVER
SOCKET
SOCKET
LEVER
M6X20
PLAIN
L=13.5
NAME
SOLENOID
El
5
EXTERNAL
6.5
ASSY
LEVER
(CN)
(FT)
SHAFT
6
OF
M6X10
M6X6
PARTS
ASSY
C6
RM
T-8722B-205
12
G
.
/
Feed
shaft
mechanism
21-^
18
§
13
T-8722B-211
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
1
11
SA3855001
SA3965001
SA4028001
SA2543001
108802001
SA2544001
012060636
SA2546001
S23651001
SA3840001
SA6150101
SA2927001
025060132
SA2566001
021350106
SA2553001
SA2554001
062400616
SA3990001
SA3887001
SA3888001
025030132
062300416
SA2550001
SA2551001
012060636
SA2555001
SA2928001
SA4538001
SA2806001
SA6308001
SA4009001
062400616
SA2724001
SA4011001
/
Feed
shaft
nm.
1
1
1
1
1
}ft^4X4L=250
1
anfTMs
1
3iCrM6X6
il^!lilfTM6X6
1
1
1
1
1
difT
1
dli#
1
1
1
fl
lltT
1
1
1
1
llg$TM3X4
1
1
4lfTM6X6
1
dj|fTM5X12
1
^
1
dg|fTM2X4
1
dllfTM4X6
1
1
mechanism
L
4X4
L=220
M6X14
M3.5
M3.5
M4X6
S3
3X3
L=200
L=400
L=100
BUSH.
L;F-ROCKER
FELT
WICK.
4X4
L=220
FEED
ROCKER
WICK.
4X4
L=250
SET
SCREW
SET
SCREW
SET
SCREW
SET
SCREW
FEED
ROCKER
FEED
BAR
TR
SCREW.
WASHER
SET
M6X14
PLAINS
SCREW.
NUT 1 M3.5
FORKED
PLATE
ADJUSTING
SCREW
PAN
FELT
FELT
FELT
HOLDER
WASHER
SCREW
FEED
THRUST
SET
FEED
SCREW,
WICK
FEED
SCREW
WICK
SCREW.
WICK.
OIL
PLAIN
PAN
BAR
RING
SCREW
ROCKER
M5X12
3X3
BAR
FLAT
SUPPORT
PAN
L=400
TUBE.
SHAFT
L=200
SLIDE
L=100
NAME
SHAFT
M6
SOCKET
COLLAR
SOCKET
SHAFT
FORK
6
M3.5
SCREW
M4X6
S3
M3X4
SOCKET
BASE
BLOCK
iM)M2X4
M4X6
OF
SHAFT
BUSH.
(FT)
(FT)
ASSY
.HIGHT
(FT)
M6X6
ARM
ASSY
PARTS
R
M6X6
M6X6
RM
T-8722B-211
14
H
.
/
Gauge
parts
15
T-8722B-231
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