Brother FD3-B251 User manual

FD3−B251, B252 1/23
2000.7
FD3-B251 B252
Cylinder Bed Bottom Covering Stitcher
Cylinder Bed Top And Bottom Covering
Stitcher
Specifications
FD3 - B25 2 -021-3 / / /
A B C D
DDevice
No accessories
TC1 Air-type tape cutter
TC3 Solenoid-type tape cutter
ATC1 Automatic tape cutter (Stitch number
type)
TFV Automatic tape feeder (Vertical)
TFH Automatic tape feeder (Horizontal)
PM1 Pulse motor drive top metering device
* Built in–075 specification, PM1 can not be
attached to the machine after purchase.
BSpecifications
011 Plain stitching
021 Tape attaching
033 Covering (4 rowdifferential feed dog)
035 Covering (3 row adjustable differential
feed dog)
051 Hem stitching (The guide on the front
cover)
053 Hem stitching (The guide on the needle
plate)
061 Elastic hemming (Withpuller)
071 Elastic lace attaching (With top metering
and right knife)
075 Elastic lace attaching (With pulse motor
drive top metering and right knife)
0X1 Hem stitching (With left knife)
AModel
1Bottom coveringstitcher
2Top and bottom covering
stitcher
CNo. of needles / Needle
gauge
12 needles
3.2 mm
22 needles
4.0 mm
32 needles
4.8 mm
42 needles
5.6 mm
52 needles
6.4 mm
63 needles
4.8 mm
73 needles
5.6 mm
83 needles
6.4 mm

FD3−B251, B252 2/23
2000.7
Specifications
2-Needle 3-Needle
Stitch pattern Stitch pattern
Sub-
class Application
Gauge
No. B251 B252 Gauge No. B251 B252
-011 Plain stitching
-1
-2
-3
-4
-5
-6
-7
-8
-021 Tape attaching
-1
-2
-3
-4
-5
-6
-7
-8
-033 Covering
(4 row differential feed dog)
-3
-4
-5
-6
-7
-8
-035* Covering (3 row adjustable differential feed
dog) - - - -7
-8 -
-051
-053
Hem stitching
-051: Guide front cover attaching
type
-053: Guide needle plate
attaching type
-2
-3 -7 -8
-061 Elastic hemming w / puller -1 -2
-3 - - -
-071 Elastic lace attaching w / top
metering right knife
-1
-2
-3
-4
-5
-7
-8
-075 Elastic lace attaching w/top metering with pulse motor right
knife
-1
-2
-3
-4
-5
-7
-8
-0X1 Hem stitching w/left knife -2
-3 -7 -8
* With –035 specification, the center dog of the differential feed dog can be adjusted up and down.
* The raised type table is a standard for –035 specification.

FD3−B251, B252 3/23
2000.7
Height of
presser foot
(mm)
Needle size Stitch length
(mm) Needle bar stroke (mm) Differential
feed ratio
(mm) B25
1B25 2
Max. speed
(rpm)
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 6,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 6,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 6,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 -5.0 6,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 6,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 33.4 0.6 - 1.4 7.0 6.0 4,500
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 5,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 5,000
UYX128
#70
(#65 - #90) 1.0 - 4.2 31.0 0.6 - 1.4 7.0 5.0 5,000
Gauge No.
Gauge No. No. of needles No. of threads Gauge (mm)
-1 23 or 4 3.2
-2 23 or 4 4.0
-3 23 or 4 4.8
-4 23 or 4 5.6
-5 23 or 4 6.4
-6 34 or 5 4.8
-7 34 or 5 5.6
-8 34 or 5 6.4

FD3−B251, B252 4/23
2000.7
Optional device
TC1 Air-type tape cutter Tape cutter device set airParts
Voltage Tape attaching <021> Elastic lace attaching <071, 075>
For Japan S28466-001 S28467-001
For export S28466-002 S28467-002
TC3 Solenoid-type tape cutter Tape cutter device set solenoidParts
Voltage Tape attaching <021> Elastic lace attaching <071, 075>
For Japan S28462-001 S28463-001
For Japan S28462-003 S28463-003
For export 110 V S28462-002 S28463-002
For export 220 V S28462-004 S28463-004
For export 230 V S28462-006 S28463-006
For export 240 V S28462-007 S28463-007
For export 380 V S28462-008 S28463-008
For export 415 V S28462-009 S28463-009
ATC1 Automatic tape cutter ATC device set solenoidParts
Voltage Tape attaching <021> Elastic lace attaching <071, 075>
For Japan S28464-001 S28465-001
For Japan S28464-003 S28465-003
For export 110 V S28464-002 S28465-002
For export 220 V S28464-004 S28465-004
For export 230 V S28464-006 S28465-006
For export 240 V S28464-007 S28465-007
For export 380 V S28464-008 S28465-008
For export 415 V S28464-009 S28465-009
* When ATC1, TC1, or TC3 is used, a special needle plate is necessary. Refer to page 23 “Needle plates for ATC1,
TC1, and TC3”.

FD3−B251, B252 5/23
2000.7
TFH Automatic tape feeder <Horizontal>
Parts
Voltage <021> Horizontal tape feed set
For Japan S11259-200
For Japan S11259-201
For export 110 V S11259-202
For export 220 V S11259-203
For export 230 V S11259-204
For export 240 V S11259-205
For export 380 V S11259-206
For export 415 V S11259-207
TFV Automatic tape feeder <Vertical>
Parts
Voltage <071, 075> Vertical tape feed set
For Japan S11258-200
For Japan S11258-201
For export 110 V S11258-202
For export 220 V S11258-203
For export 230 V S11258-204
For export 240 V S11258-205
For export 380 V S11258-206
For export 415 V S11258-207
Push button switch set
Part name Part code Q’ty
Push button switch set S18962-001 1
* When PM1 device is used, this set can be attached and used instead of the knee switch.

FD3−B251, B252 6/23
2000.7
Joint box assy
Part name Part code Q’ty
Jointbox assy S18854-001 1
* Use this for wiring when using many devices together.
Box set plate (B) assy
Part name Part code Q’ty
Box set plate (B) assy S18852-001 1
* Use this when hanging the boxes of ATC1 and PM1 under the table.

FD3−B251, B252 7/23
2000.7
Air tube joint
Ref.
No. Part name Part code Q’ty
2-1 Elbow union S04896-000 1
2-2 T –union S28469-000 1
2-3 Triple joint (3) S28470-000 1
2-4 Triple joint (4) S28471-000 1
2-5 Triple joint (5) S28472-000 1
* Use this when using more than one air-driven device together.
Knee lifter device
Ref.
No. Part name Part code Q’ty
63 Knee lifter deviceassy 155196-409 1
64 Screw 4.1×25 032422-505 4
65 Chain assy S28357-001 1
* When used on the machine with the right knife specification (-071, -075), this enables you to stop and restart the
operation of the cloth knife at any place during sewing.

FD3−B251, B252 8/23
2000.7
Special parts to use when using spun thread or cotton thread
Ref.
No. Part name Part code Q’ty
1Guide base S28941-001 1
2Washer 105161-004 1
3Screw, pan SM3.57-40×6 062670-612 1
4Thread guide (M) holder S28942-001 1
5Screw, pan SM3.18-40×5 062660-512 2
6Thread guide (M) S28943-001 3
7Set screw, socket (CP) SM3.18 146427-001 3
8Needle guard, BH S28483-101 1
----- Instruction manual S91251-262 1
* If there is a big difference among right, center, and left needle thread loop size, this thread guide (separate type)
is effective in preventing stitch skipping.
* This needle guard, BH is effective in preventing stitch skipping caused by unwanted left needle backward
movement.
* For attaching the parts listed above, refer to the instruction manual also listed above.

FD3−B251, B252 9/23
2000.7
Synchronizer
Ref.
No. Part name Part code Q’ty
1Synchronizer #17-2 J80347-001 1
3Synchronizer guide S28963-001 1
4Set screw, socket (CP) SM4.37 014680-622 1
* When using the synchronizer, use the motor and V belt listed below.
Motor
Single-phase MD-601R
3-phase MD-611R
V-belt
Semi-submerged type table M 36
Raised type table M 40

FD3−B251, B252 10/23
2000.7
Conversion parts for installing the table
* For table dimensions and installation, refer to the instruction manual supplied with the machine.
Raised type →Semi-submerged type
Ref.
No. Part name Part code Q’ty
27 Head plateassy S28830-001 2
28 Bolt, M8×55 211964-001 4
29 Nut, 1 M8 021080-106 4
30 Washer, spring 2-8 028080-242 4
31 Washer, plain M8 025080-236 4
Semi-submerged type →Raised type
Ref.
No. Part name Part code Q’ty
37 Rubber cushion pin S28441-001 4
38 Retaining ring, U5 S28442-001 4
39 Washer, plain M6 025060-236 4
40 Washer, spring 2-6 028060-242 4
41 Nut, 1M6 021060-106 4
53 Sub belt cover S28444-001 1
54 Screw, oval M5.5×20 100666-002 3
55 Washer, plain S 5.56 025750-132 3

FD3−B251, B252 11/23
2000.7
Puller
Ref. No. Part name Part code Q’ty
<061> For elastic hemming
100-3 Plastic gear (U30) S28278-000 1
102-3 Plastic gear (D15) S28283-000 1
Option parts
100-2 Plastic gear (U26) S28277-000 1
102-2 Plastic gear (D13) S28282-000 1
Option parts
100-1 Rubber roller (U) S28276-000 1
102-1 Rubber roller (D) assy S28279-000 1
Optional binder Single fold binding Double fold binding
Finished size
(mm) Tape size (mm) Parts No. Finished size (mm) Tape size (mm) Parts No.
6 18 S09503-001 6 24 S09515-001
8 24 S09504-001 8 30 S09516-001
10 28 S09505-001 10 36 S09517-001
12 32 S09506-001 12 42 S09518-001
13 34 S09507-001 13 44 S09519-001
15 40 S09508-001 15 48 S09520-001
16 42 S09509-001 16 50 S09521-001
17 44 S09510-001 17 52 S09522-001
18 46 S09511-001 18 54 S09523-001
20 50 S09512-001 20 58 S09524-001
23 56 S09513-001 23 64 S09525-001
Binder for tape
attachment in the bed
side type
<B251 B252-021>
25 60 S09514-001 25 68 S09526-001
6 18 S09527-001 6 24 S09539-001
8 24 S09528-001 8 30 S09540-001
10 28 S09529-001 10 36 S09541-001
12 32 S09530-001 12 42 S09542-001
13 34 S09531-001 13 44 S09543-001
15 40 S09532-001 15 48 S09544-001
16 42 S09533-001 16 50 S09545-001
17 44 S09534-001
18 46 S09535-001 18 54 S09547-001
20 50 S09536-001 20 58 S09548-001
23 56 S09537-001 23 64 S09549-001
Binder for tape
attachment in the bed on
type
<B251 B252-011>
25 60 S09538-001 25 68 S09550-001

FD3−B251, B252 12/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 011-1 011-2 011-3 011-4 011-5
Label S08678-001 S08678-002 S08678-003 S08678-004 S08678-005
Plain stitching B251 B252
Application
No. of needles 2 2 2 2 2
Needle gauge
(mm) 3.2 4.0 4.8 5.6 6.4
S28770-001 S28772-001 S28774-001 S28776-001 S28778-001
Needle clamp
assy
B251 S21832-001 S21834-001 S21836-001 S21838-001 S21840-001
Presser foot assy
B252 S08779-201 S08786-201 S08788-201 S08790-201 S08792-201
S08717-001 S08718-001 S08719-001 S08720-001 S08721-001
Needle plate
S28237-001
Main feed dog
S28242-001
Differential feed
dog

FD3−B251, B252 13/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 011-6 011-7 011-8 021-1 021-2 021-3
Label S08678-006 S08678-007 S08678-008 S08678-009 S08678-010 S08678-011
Plain stitching B251 B252 Tape stitching B251 B252
Application
No. of needles 333222
Needle gauge
(mm) 4.8 5.6 6.4 3.2 4.0 4.8
S28780-001 S28782-001 S28784-101 S28770-001 S28772-001 S28774-001
Needle clamp
assy
B251 S21842-001 S21844-001 S21846-001
Presser foot assy
B252 S08794-201 S08796-201 S08798-201
S08800-201 S08813-201 S08815-201
S08722-001 S08723-001 S08724-001 S08725-101 S08726-001 S08727-001
Needle plate
S28237-001 S28238-001
Main feed dog
S28242-001 S28243-001
Differential feed
dog

FD3−B251, B252 14/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 021-4 021-5 021-6 021-7 021-8
Label S08678-012 S08678-013 S08678-014 S08678-015 S08678-016
Tape attaching B251 B252
Application
No. of needles 2 2 3 3 3
Needle gauge
(mm) 5.6 6.4 4.8 5.6 6.4
S28776-001 S28778-001 S28780-001 S28782-001 S28784-001
Needle clamp
assy
B251
Presser foot assy
B252
S08818-201 S08820-201 S08822-201 S08824-201 S08826-201
S08728-001 S08729-001 S08730-001 S08731-001 S08732-001
Needle plate
S28238-001
Main feed dog
S28243-001
Differential feed
dog

FD3−B251, B252 15/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 033-3 033-4 033-5 033-6 033-7 033-8
Label S08678-064 S08678-065 S08678-066 S08678-067 S08678-068 S08678-069
Covering B251 B252 B251 B252
Application
No. of needles 222333
Needle gauge
(mm) 4.8 5.6 6.4 4.8 5.6 6.4
S28774-001 S28776-001 S28778-001 S28780-001 S28782-001 S28784-101
Needle clamp
assy
B251 S21848-001 S21850-001 S21852-001 S21854-001 S21856-001 S21858-001
Presser foot assy
B252 S08828-201 S08830-201 S08832-201 S08834-201 S08836-201 S08838-201
S21827-001 S21828-001
S28910-001
*1 S28911-001 *1
Needle plate
S21823-001 S21824-001 S21825-001 S21826-001
S28239-001
Main feed dog
S28244-001
Differential feed
dog
*1: This is the needle plate which has been increased in its strength by eliminating the groove in the center claw.

FD3−B251, B252 16/23
2000.7
Gauge parts list
Model B252 B252
Specifications 035-7 035-8
Label S28933-001 S28933-002
B252
Application
No. of needles 3 3
Needle gauge
(mm) 5.6 6.4
S28782-001 S28784-101
Needle clampassy
S08836-201 S08838-201
Presser foot assy
S28931-001 S28932-001
Needle plate
S28239-001
Main feed dog
Differential feed
dog
Ref. No. Part name Part code Q’ty
1Differential feed dog L S28929-
001 1
2Differential feed dog S S28930-
001 1
3Screw, pan SM3.18-40 ×6 062660-
612 1
* When you change to –035 specification or if you are using the old needle guard (F) (S28091-001), replace with
the new needle guard (F) (S28091-101) (Changed in 1995).

FD3−B251, B252 17/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 051-2 051-3 051-7 051-8 053-2 053-3
Label S08678-057 S08678-058 S08678-062 S08678-063 S08678-090 S08678-091
Hem stitching B251 B252 B251 B252
Application
No. of needles 223322
Needle gauge
(mm) 4.0 4.8 5.6 6.4 4.0 4.8
S28772-001 S28774-001 S28782-001 S28784-101 S28772-001 S28774-001
Needle clamp
assy
B251 S28140-101 S28142-101 S28144-101 S28146-101 S28140-101 S28142-101
Presser foot assy
B252 S28121-101 S28123-101 S28125-101 S28127-101 S28121-101 S28123-101
S28079-001 S28080-001 S28081-001 S28082-001 S28079-001 S28080-001
Needle plate
S28240-001
Main feed dog
S28245-001
Differential feed
dog

FD3−B251, B252 18/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 053-7 053-8 061-1 061-2 061-3
Label S08678-095 S08678-096 S08678-074 S08678-075 S08678-076
Hem stitching Elastic hemming (with puller)
Application B251 B252 B251 B252
No. of needles 3 3 2 2 2
Needle gauge
(mm) 5.6 6.4 3.2 4.0 4.8
S28782-001 S28784-101 S28770-001 S28772-001 S28774-001
Needle clamp
assy
B251 S28144-101 S28146-101 S28138-101 S28140-101 S28142-101
Presser foot assy
B252 S28125-101 S28127-101 S28118-101 S28121-101 S28123-101
S28081-001 S28082-001 S28078-001 S28079-001 S28080-001
Needle plate
S28240-001
Main feed dog
S28245-001
Differential feed
dog

FD3−B251, B252 19/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 071-1 071-2 071-3 071-4 071-5
Label S08678-023 S08678-024 S08678-025 S08678-026 S08678-027
Application
Elastic lace attaching
(With top metering and right knife) B251 B252
No. of needles 2 2 2 2 2
Needle gauge
(mm) 3.2 4.0 4.8 5.6 6.4
S28770-001 S28772-001 S28774-001 S28776-001 S28778-001
Needle clamp
assy
B251
Presser foot assy
B252
S28109-001 S28111-001 S28112-001 S28113-001 S28114-001
S08739-001 S08740-001 S08741-001 S08742-001 S08743-001
Needle plate
S28238-001
Main feed dog
S28246-001
Differential feed
dog

FD3−B251, B252 20/23
2000.7
Gauge parts list
Model B251
B252 B251 B252 B251 B252 B251 B252 B251 B252
Specifications 071-7 071-8 075-1 075-2 075-3
Label S08678-029 S08678-030 S08678-048 S08678-049 S08678-050
Elastic lace attaching
(With top metering and right knife) Elastic lace attaching (With pulse motor drive top metering and right knife)
Application B251 B252 B251 B252
No. of needles 3 3 2 2 2
Needle gauge
(mm) 5.6 6.4 3.2 4.0 4.8
S28782-001 S28784-101 S28770-001 S28772-001 S28774-001
Needle clamp
assy
B251
Presser foot assy
B252
S28116-001 S28117-001 S28109-001 S28111-001 S28112-001
S08745-001 S08746-001 S08739-001 S08740-001 S08741-001
Needle plate
S28238-001
Main feed dog
S28246-001
Differential feed
dog