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 dotjohn on July 19th, 2012
Is There An Operation Manual Available For Download On The Db2-b737?
I have downloaded the parts manual and the DC Motor Service Manual, but I'd like an operation manual to show threading, oiling, etc. Thank you.
Current Answers
Related Brother International DB2-B737 Manual Pages
Parts Manual - Multi - Page 26
...
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Thin materials
3 .
W.*
DIFFERENT PARTS LIST/ZUBEHoRLISTE LISTE DES PIECES ACCESSOIRES/LISTA DE PIEZAS ACCESORIAS
BROTHER INDUSTRIES, LTD.
• DB2-B737- 0 N •
MADE IN JAPAN
1 . a. Medium thick materials
5 P-4i--t-til1
ick materials
•
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Thread Trimmer (for Export Spec.)
3 . -`f:E/II)+4.C(1=1A{±4)
Thread Trimmer + Quick Back Switch (for...
Network Users Manual - English - Page 1
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BROTHER INDUSTRIES, LTD.
mAt-±rwit lwnwwi DC MOTOR SERVICE MANUAL
MD-802 (Single-Phase Type)
MD-812 (Three-Phase Type)
...Z.
Network Users Manual - English - Page 2
...
7
DC Servomotor
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 •...
Network Users Manual - English - Page 3
... PANEL))
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 diagram...
Network Users Manual - English - Page 4
... Operation While the clutch motor produces windy or idling sounds and vibrations, the DC motor is also applied to the plug of Sewing Speed The sewing speed is best suited for the following sewing machines.
[DB2-B7371 4 ,7
[DB2-6738]
4
[DB2-67911 *The DC motor is free from 215 spm to replace the moving brake plate.
4. And by connecting the switch to the automatic thread...
Network Users Manual - English - Page 5
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Operation Box E-2
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Synchronizer
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t -rT-r1 Treadle Unit
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Machine Head to be Applied [DB2-B737 • B747 • B748 • B791 •...
Network Users Manual - English - Page 7
... box Q and the brakes are applied so that the operation of the sewing machine is sent to decelerate the motor O. Then the signal from the synchronizer 0, mounted on , the start signal and the voltage corresponding to the stepping degree are supplied to run the motor Q at the thread trimming speed (inching
speed). The voltage is supplied...
Network Users Manual - English - Page 9
... motor pulley and the machine pulley.
*The belt comes to fit the machine pulley and the motor pulley, which happens to coincide the lower end of the
magnet 0 with the upper end of the thread ... 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 and ...
Network Users Manual - English - Page 10
...top to raise the needle bar 0 stop position.
Synchronizer Model DB2-B737 • B748
Higher
Lower
Lower
Higher
0
Needle up position ...synchro- The thread trimmer signal is timed to the needle down stop position. * When the machine pulley is ...improper machine operation)
When the Synchronizer Is Out Of Order . . . *Turn off . When the needle is replaced.
Use the machine with...
Network Users Manual - English - Page 11
...parts are factory set , so that they never require adjustment anymore. Control circuit board
Explanation of the control box. NOTE 3: When any volume knob is turned by mistake, turn the volume knobs when not necessary. 131 Control box
Control Box (Model DB2-B737... thread trimming)
is turned clockwise, the low machine speed is adjusted to touch the volume knobs by the
maximum sewing ...
Network Users Manual - English - Page 14
... before connecting/disconnecting the plug.
1. 8 Standing work machine *The code connection and the treadle lever are fixed for the timer, relay, sensor, counter and so on is available
from the 4P plug in the control box. * The power up to DC 12 V • 100 mA is available from the 4P plug (red) where the...
Network Users Manual - English - Page 15
...
1
Emitter
2 Terminal not used
2. Models DB2-B737 • B747 • B791 • B793. B795- Collector
3
*Output signals are sent from the open collector of the photo transistor of the photo coupler. (Use the CN11 plug.) Max. Model B738
Collector
1
*With special connectors (cycle output), connect the machine to the external equipments.
*Output signals...
Network Users Manual - English - Page 16
... 1. When the actuator is pushed during the
sewing operation, the needle stops at 1,800 spm. *When the slow start and continuous backtack speeds can be changed from 215 spm to the needle down position. The machine speed can be adjusted from the back of operation box Models DB2-B737 • B747 • B748 • B791
•...
Network Users Manual - English - Page 17
... stitches decreases. The number of stitches for thread trimming. It goes off by stepping on the treadle for the end backtacking during the machine operation. Set the end backtack stitch number C ...Operation box (Models DB2-B737 • B747 • B791 • B793 • B795 • B798)
*The switch settings and the number of stitches cannot be changed during the fixed stitch sewing...
Network Users Manual - English - Page 24
...FUSE
FUSE
Fuse
Motor
Power
gi
O
w
Synchronizer
Operation box
B737
®r©
(Note) 380 V-440 V 3 A
Motor No.
6P connector
1
Vf. Synchronizer
1
GND
2
DC + 5 V
3
Needle down
4
0 V
5
NO. .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...
Network Users Manual - English - Page 25
...0 V TH
4
Motor +
5
Vf
6
Motor - Operation panel
1
GND
1
0 V
11
SLED
2
DC + 5 V
2
DC + 5 V 12
SCAN 0
3
Needle down
3
SCAN 7
13 LSCAN 3
4
0 V
4
BUZZER 14 DPSCAN
5
NO. TH
3
if.
2 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...
Network Users Manual - English - Page 26
...box, motor, operation panel box, motor, operation panel box, synchronizer, power switch, machine solenoid and presser foot lifter.
*When the control box is found to check the quality of the detailed parts (semiconductors) for
maintenance.
Then the machine runs normally.)
(2) Power indicator lamp (red LED) does not flickers.
3. noid do not work. (thread trimming, reverse rotation, thread wiper...
Network Users Manual - English - Page 28
...4 5
1. Remove the sensor cord (6P connector) from the connector part of the machine
Connector from the connector part of the control box. 2. Remove the load connector (12P connector) of the machine from the machine head Reverse switch
Reverse solenoid
12 9
3
0 8 5
10 7
GND
Thread wiper solenoid
Thread trimming solenoid
Presser foot lift connecter Solenoid
GND
4
6
1
Knee switch...
Network Users Manual - English - Page 29
Drive Tr
Machine brake Trimmer solenoid Wiper solenoid Reverse feed solenoid Low speed Back tack speed High speed
Auto speed ...74LS 259
Drive Tr
ic 6 HDLS -- Scan 4 ). S LED PC1 PC2
Operation panel
Set Ply sensor Input Sewing mode Programme
Start tack End tack Repeat Auto SP Slow start Half step 3 B738 Machine Control System Block Diagram
MD-812-470B
Treadle Front SW Rear SW
Actuator SW ...
Network Users Manual - English - Page 30
... supply
+12V +5V
01V
Hic 3 ENC cont
Motor lock protective
Power ON-OFF detection
)
CPU MB8841
)
Hic 2 Drive circuit
Machine brake Reverse feed solenoid Trimmer solenoid Wiper solenoid Presser solenoids
Start, repeat tack speed Back tack speed High speed Electric brake
Hic 1 INP circuit
a Operation panel
3e.
•
Start tack SW
End tack...
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