Setting The Control Box Speed Setting For The Head - Brother MD-602 Service Manual

10.4 Setting the control box speed setting for the head

Change the speed setting for the following head settings highlighted in gray.
(1) Single needle
Head
B737/B201/B755
B791
B774
B722
B724
B748
B798/728
B722A
B778A
B781
B852/853/854
B883
Overlock
(2) Twin needle
Head
B842
B872
B845/875
B847
B848
B837
B877
B878
P73/P81
C51
10.4.1 Setting procedure
q Turn on the power switch and clear the [ABCD] display.
w Press the [
] key and the [
e Press the [
] key and the [
r Press the [
] key to change the type of speed displayed.
t Press the B [
] key until the speed to be changed appears.
y Press the [
] key to display the current speed setting.
u Set the speed to match the machine head. Use the [
i Press the [
] key to return to the speed display.
o Press the B [
] key until [ En ] is displayed.
!0 When [ En ] appears, press the [
!1 Repeat steps o and !0 until the display disappears to end the procedure.
Note:
• If you would like to set the maximum sewing speed and the start backtacking speed to be lower than the speed
which has been set by DIP switch 1 or the speed set in speed setting mode [ S P ]
The speed can be changed easily using the sewing speed key on the operation panel.
• The automatic sewing speed can only be set to be lower than the maximum sewing speed.
Inching Thread
speed trimming
[Lo] speed [tr]
215 215
215 215
215 215
215 215
215 215
215 215
215 215
215 215
215 215
215 215
215 185
250 170
215 215
Inching Thread
speed trimming
[Lo] speed [tr]
250 185
250 185
250 185
250 185
250 185
250 185
250 185
250 185
250 185
250 185
] key at the same time. [ d 5 ] appears in the display.
] key at the same time. [ S P ] appears in the display.
] key.
Slow Start
speed backtacking
[SL] speed [Li]
215 1800
215 1800
215 1800
215 1800
500 1600
215 1200
215 1000
215 1800
215 1800
215 1800
215 1200
250 250
215 1800
Slow Start
speed backtacking
[SL] speed [Li]
250 1000
250 1000
250 1000
250 1000
250 1000
250 1000
250 800
250 800
250 1000
250 1000
] and [ ] keys to set the speed.
MD-602, 612
End Improved
backtacking stopping
speed [Eb] [Po]
1800 1700
1800 1700
1800 1700
1800 1700
1600 1700
1200 1700
1000 1700
1800 1700
1800 1700
1800 1700
1200 1700
250 500
1800 1500
End Improved
backtacking stopping
speed [Eb] [Po]
1000 1500
1000 1500
1000 1500
1000 1500
1000 1500
1000 1500
800 1500
800 1500
1000 1500
1000 1500
25