Changing The Head Settings; Setting The Motor Pulley Size And Dip Switches For The Head; Setting The Dip Switch Maximum Speed Setting For The Head - Brother MD-602 Service Manual

10. Changing the head settings

When using a motor for a different head than the default head, change the settings with the following procedures.
(Note) The operation panel F-40 or F-100 is required.

10.1 Setting the motor pulley size and DIP switches for the head

Head
• Single needle lockstitch machine
B737, (B201) B791, B774, B722, B724, B748A,
B798, B728, B772A, B778A, B781, B852,
B853, B854, B883
• Overlock
• Twin needle lockstitch machine
B842, B872, B845, B875, B847, B848,
B837, B877, B878
• Post-type sewing machine
P73, P81, C51
(Note) If the SW1-2, 5 or SW6-1, 2, 3, 4 settings are changed, the control box head setting will change to "7373"
(SW1-5: OFF) or "8423" (SW1-5: ON).

10.2 Setting the DIP switch maximum speed setting for the head

Single needle sewing machine (SW1-5 = OFF)
Head High speed
B737-3 4700
B737-5 3500
B737-1 4000
B791-3 4500
B791-5 3500
B774-3 4500
B774-5 3500
B722-3 4700
B722-5 4000
B724-5 4000
B748-5 4000
B748-7 3000
B798 2000
B772 4700
B778 4700
B781 4000
B852 4500
B883 850
ovL 6000
8000
Pulley size
φ 105
φ 90
DIP switch (SW1-6, 7, 8) setting
Set 850 rpm to 1000 rpm.
(Values given in parentheses are the overlock rotation speeds.)
1000 (5000) rpm
2500 (6000) rpm
3500 (7000) rpm
4500 (8000) rpm
MD-602, 612
SW1, SW6 settings
Low Thread Tack Stop
Low Thread Tack Stop
2000 (5500) rpm
3000 (6500) rpm
4000 (7500) rpm
4700 (8500) rpm
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