Brother International DB2-B737 Support Question
Brother International DB2-B737 Support Question
Find answers below for this question about Brother International DB2-B737.Need a Brother International DB2-B737 manual? We have 2 online manuals for this item!
Question posted by Bvneeson on September 20th, 2014
Machine Foot Fault
I Hope You Can Help, I Have A Brother Exedra DB2-B737 413 Industrial Sewing Machine And The Foot Is Stuck In The Up Position And Won't Drop Down Into The Sewing Position. Any Ideas On What The Problem Could Be? Thanks You - International
Current Answers
Answer #1: Posted by TechSupport101 on September 20th, 2014 9:21 AM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,305
Member since:
May 24th, 2013 Points: 12,171,305
Hi. Refer to the explanation here for assistance on this.
http://www.thriftyfun.com/Sewing-Machine-Presser-Foot-Stuck-Up.html
Related Brother International DB2-B737 Manual Pages
Parts Manual - Multi - Page 26
... Wiper + Quick Back Switch
+ Automatic Presser Foot Lifter [Air Type] (for Export Spec.)
9.
Parts No. 183400- 001 S02738- 001 S02740- 000 S02739- 000 S03816- 001 025050- 236
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DIFFERENT PARTS LIST/ZUBEHoRLISTE LISTE DES PIECES ACCESSOIRES/LISTA DE PIEZAS ACCESORIAS
BROTHER INDUSTRIES, LTD.
• DB2-B737- 0 N •
MADE IN JAPAN
1 . Thread...
Network Users Manual - English - Page 2
...
7
I i Needle position detector (synchronizer)
7
r31 C•ontrol box
9
T• readle
10
O Brush replacement
10
lel Motor brake spacing
11
pi Checking the lamp terminal code
11
Standing work machine
12
pi Application to production control system
13
((OPERATION INSTRUCTION
14
Installation of operation box
14
M Motor and control box (Models DB2-B737 • B747...
Network Users Manual - English - Page 3
...))
22
M Model DB2-B737 • B747 • B748 • B791 • B793 • B795 • B798 (Type 300B)
22
Model DB2-B738 (Type #4708)
23
TROUBLESHOOTING
24
CHECKINGTHE MOTOR©
25
111 Motor
25
ri Brake
25
CHECKINGTHE MACHINESOLENOID)S)
26
111 Solenoid load of the machine
26
121 Hem sensor
26
3 B737 Machine control system block...
Network Users Manual - English - Page 4
... with the clutch motor we have made. Applicable to Standing Work and Automation The application for the following sewing machines.
[DB2-B7371 4 ,7
[DB2-6738]
4
[DB2-67911 *The DC motor is controlled from 215 spm to 3,000 spm. 6. There is also stopped... energy saving works. ©DESCRIPTION OF THE MOTOR
*The Brother DC motor is free from 215 spm to the maximum speed. FEATURES
1.
Network Users Manual - English - Page 5
...
E-2 Ai 8
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Operation Box E-2
brother
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Operation Box E-4
Machine Head to be Applied [DB2-B738]
NAME OF EACH COMPONENT
The operation box is best suited to be Applied [DB2-B737 • B747 • B748 • B791 • B793 • B795 •...
Network Users Manual - English - Page 7
... to the control box Q by the synchronizer 0. When the treadle Q is returned to the neutral position (with foot off), the neutral signal is sent to run the motor Q at the thread trimming speed (inching
...pulley of the sewing machine, is sent to the control box Q and the brakes are supplied to drive the sewing machine. 2. The voltage is stopped at the needle down stop position set by ...
Network Users Manual - English - Page 9
... the needle up stop hole IC 0 for Needle Up Signal *Stop the machine at the needle down stop position so that it
loosens about 10 mm when pressed by one hole IC. ...finger.
2 Needle position detector (synchronizer) Model DB2-B747 • B791 • B793 • B795 • B798
*Take off the power switch.
0
Position Adjustment for Needle Down Signal *Turn the machine pulley this side ...
Network Users Manual - English - Page 10
...DB2-B737 • B748
Higher
Lower
Lower
Higher
0
Needle up stop Thin, regular materials: 10 ^ 12 mm Thick materials: 10 --14 mm
Reference line
0
Needle down position, the distance between needle plate top and needle set screws 0 in the down stop position. When the needle is stopped in the up position...* Check the needle up stop position. * When the machine pulley is removed once, provide ...
Network Users Manual - English - Page 11
...DB2-B737) The high speed volume, backtack stitch volume, power lamp, needle position...decrease. NOTE 3: When any volume knob is turned by the
maximum sewing speed volume knob, so the VR3 requires no adjustment. 5.
When ...0
1. When the VR1 0 (low speed and thread trimming)
is turned clockwise, the low machine speed is on the front of Each Volume Knob *Do not turn off time setting) is ...
Network Users Manual - English - Page 12
... stroke is changed, the stepping and the stepping back pressures change the position [(a) through (d)] where the treadle spring
is hung on it responds lightly...
. ment. B
151 Brush replacement
0 a
O
O ..;
0
Stepping Pressure *If the machine starts running at low speed just by
placing your foot on the treadle or by stepping on the treadle lever 0 * The stepping pressure is required ...
Network Users Manual - English - Page 15
...the tread trimming output terminal. operating voltage: DC20 V or less
gr=O.. operating current: DC20 mA or less Max. Models DB2-B737 • B747 • B791 • B793. B795- m
000 320
11:111-1 (0/ •=o7 111111- -...
*With special connectors (cycle output), connect the machine to production control system 1. operating voltage: DC20 V or less
2 1
Connector
2
Emitter
Network Users Manual - English - Page 16
...DB2-B737 • B747 • B748 • B791 • B795 • B798)
Power switch
O0
a 11
brother
0©000
*Push the "ON" button of the arm
bed. 2.
And when counterclockwise, it decreases. clockwise, it
decreases. When the actuator is pushed during operation, the sewing operation is reversed.
*When the needle position...at the needle up position and the machine is pushed with ...
Network Users Manual - English - Page 17
...DB2-B737 • B747 • B791 • B793 • B795 • B798)
*The switch settings and the number of stitches cannot be changed during the fixed stitch sewing can be set the stitch number with the machine..., the needle at the needle down stop position moves to
the needle up stop position, while the needle at the needle up or down stop position moves to 9) with the counter 0. 4....
Network Users Manual - English - Page 18
... indicated with a circle in the chart below
o . . . . The machine works by setting treadle to reverse position. If the actuator is pressed while the machine is ON. E-4
Application
Normal lock stitch
Fixed stitch sewing OFF
Start backtack
End backtack
Start/end backtack
Fixed stitch sewing
Fixed stitch sewing ON (thread trimming
activated by one correction stitch if...
Network Users Manual - English - Page 20
...Black O ang
+15V
Blue Gray Pu plc
Oman ~ O 06o\l'oli 5 w soV
Machine head
Reverse switch Reverse solenoid 7431
Thread wiper solenoid 5.052 Thread trimming solenoid 6.712
7
4 O
00 3
Solenoid presser foot lifter
I5W-100
4 2
Presser ifti g solenoid
50
3
Presser foot lifter
2
switch
A 0 O
A 0
O 0
0
(C) /(:\)/C.)\ 000
00
0
000
0%
000
ff e
CN11
8 m Tr
000pIl00000000l
4 3 2 if...
Network Users Manual - English - Page 21
... circuit board
0 0 00®0
Blue 3 Gray 4 Purple
Op 4°,1 O
O O
m
0- 0- c..)
Machine head
Reverse solenoid 7.4O
Reverse switch
Thread wiper solenoid 5.052
Thread trimming solenoid 6.742
4 0
00 3
Solenoid presser foot lifter
4 2 3
Presser lifting solenoid
5
Brake
Brake coil 8052
Presser foot lifter
2
switch
•••
Synchronizer #12-0 (external)
Red
Treadle unit...
Network Users Manual - English - Page 22
...co
ti
7c)
O
co O •-
0a).
•
5
O
0
5•- +.4
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O o
.0 Ce3
0COI
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g ""
_c Q
O
a) a) O
7cr) O
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E▪-• g
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Potentiometer
3
Hem detection
Machine head
Solenoid presser foot
Reverse switch lifter
Reverse solenoid 7.4O
2
7( 0 4 Cycle o tput
Thread wiper 5.0O
7 8
4
O Thread trimming
0 solenoid 6.7O
2 3
15W-1O4
Brake
4 2
Brake coil...
Network Users Manual - English - Page 23
...o
<
4 O
co)
-arO.))
Vco)
to)
""
O
_c O
cb a) O
a) • O
11) rO
N
Potentiometer
3 2
Hem detection
Machine head
Thread wiper solenoid 5.00 Reverse
Reverse solenoid 7.40
Cycle utput
2
2
4
8
4
0 Thread trimming
solenoid 6.7O
2 3
Solenoid presser foot ch lifter
15W.1O4
4
2
O
0
Presser foot litre 2
switch
Brake Brake coil 8.00
-r
Treadle unit Power switch
r
0ro 0
000...
Network Users Manual - English - Page 24
TH
3
if. .DETAILS OF CONNECTOR PANEL
1 Model DB2-B737 • B747 • B748 • B791 • B793 • B795 • B798 (Type 3O0B)
For standing work
O th`
0 CD CD
Machine head
Presser foot lifter
000
I00©
00® to tt ©
0© 00/
Brake
No. 2P connector (white)
1
Presser
2
0 V
3
4
5
6
7
8
9
10
11
12
For standing...
Network Users Manual - English - Page 25
...Model DB2-B738 (Type #47OB)
Potentiometer
Cycle output
2
Needle position
switch
Hem detection
O
Correction
C)SC) 00C)
switch
ArT\ \Li
0
0
0
For standing work
Machine head
Brake
scp()
Presser foot lifter...Low speed
[Single-phase]
Side face of control box
15A
Motor Power
O O
Fuse
Machine head No.
12P connector
1
Leading power
2
Leading output
3
GND
4 Thread trimming power...
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