Connecting The Cords - Brother LK3-B434E MKII Instruction Manual

3-13. Connecting the cords

w
q
!1
!0
1. Gently tilt back the machine head.
NOTE:
After tilting back the machine head, do not push the face side or the pulley side from above.
2. Pass the cords q through the hole w in the work table.
3. Gently return the machine head to its original position.
4. Remove the six screws e, and then open the control box cover (main P.C. board mounting plate r).
NOTE:
When opening the cover, hold it securely so that it does not fall down.
5. Loosen the two screws t, and then open the cord presser plate y in the direction of the white arrow and
pass the cords q through the opening.
6. Loosen the screw o, and then attach the ground cord u for the machine head and the ground cord i for
the operation panel as shown in the illustration.
7. Loosen the screw !1 , and then attach the ground cord !0 for the upper shaft motor as shown in the illustra-
tion.
8. Securely connect connectors P1 to P8, P11, P14 (for pneumatic) and P18 as indicated in the table.
Machine head connectors
Connection location
X, Y, Sewing sensor
Synchronizer
Machine specification
select connector
Thread wiper solenoid*
Thread take-up solenoid
Presser solenoid
Thread trimmer solenoid
Pulse motor, Y
Pulse motor, X
Operation panel
Upper shaft motor
EMERGENCY STOP switch
Solenoid valve (for pneumatic)
* Provided as an option for solenoid specifications.
9. Secure the cords q with the cord clamps ! 2 and ! 3 .
10. Close the cord presser plate y in the direction of the black arrow, and secure it by tightening the screws t.
NOTE:
Check that the cords do not get pulled when the machine head is tilted back gently.
q
!2
P18
P14
r
P11
No. of pins Cord mark
z
12-pin
x
5-pin
c
8-pin
v
5-pin
b
4-pin
n
4-pin (blue)
m
4-pin
26-pin None
3-pin None
⁄8
6-pin
12-pin None
LK3-B434E Mark II
!3
o
P8
P1
P2
u
P3
i
e
P4
P5
P6
P7
Connection location on circuit board
P1 (ORG2)
P2 (SYNCHRO)
P3 (SELECT)
P4 (SOL2)
P5 (SOL)
P6 (YPM)
P7 (XPM)
P8 (PANEL)
P11 (UVW)
P18 (HEAD)
P14 (AIR)
3. INSTALLATION
t
y
10