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Brother International S-7200B Service Manual - Page 19

<When set as a sewing speed actuator&gt, FUNCTION SETTINGS OPERATION PANEL, Function No. 69

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3. FUNCTION SETTINGS (OPERATION PANEL) Function No. 69 No. Initial value 69 0 Setting range 0 - 3 Actuator (option) function 0: No function (1: Stitch counter actuator) 2: Sewing speed actuator 3: Option actuator Setting details Connect the switches to connector CN11 on the control circuit board. Low speed Medium switch speed switch High speed switch 2250M ・ When the low speed switch is pressed, the sewing speed becomes 1,000 rpm. The speed can be changed by setting Function No. 122. ・ When the medium speed switch is pressed, the sewing speed becomes 3,000 rpm. The speed can be changed by setting Function No. 121. ・ When the high speed switch is pressed, the sewing speed returns to the maximum sewing speed that has been set using the MAX key. Connect to connector CN9 on the control circuit board. Option Actuator ・ Set the operation using Function No. 11. 2251M S-7200B 12

Section	Page
SAFETY INSTRUCTIONS	3
[1] Safety indications and their meanings	3
[2] Notes on safety	4
[3] Warning labels	6
1. MACHINE SPECIFICATIONS	8
2. NOTES ON HANDLING	9
3. FUNCTION SETTINGS (OPERATION PANEL)	10
3-1. Maximum sewing speed and start backtack sewing speed setting methods	10
3-2. Using the LOCK key	11
3-3. Setting the DIP switches	11
3-4. Setting functions	12
3-5. Function List	13
3-6. Clearing saved data (Initialization)	28
4. INITIALIZING THE CONTROL BOX PANEL	29
5. ADJUSTING THE ROTARY HOOK LUBRICATION　AMOUNT (-[]0[], []3[] specifications)	30
6. ADJUSTMENTS	31
6-1. Adjusting the actuator position	31
6-2. Adjusting the safety switch position	32
6-3. Adjusting the thread take-up spring	33
6-4. Adjusting arm thread guide R	34
6-5. Adjusting the presser foot height	34
6-6. Adjusting of the feed dog height	35
6-7. Adjusting the feed dog angle	36
6-8. Adjusting the needle bar height	37
6-9. Adjusting the needle and feed mechanism timing	37
6-10. Adjusting the needle and rotary hook timing	38
6-11. Adjusting the thread trimming timing	39
6-12. Adjusting the thread take-up amount (-[][]3 specifications)	40
6-13. Adjusting the needle up stop position (When using the operation panel)	41
6-14. Setting the needle up stop position and needle down stop position (If using the control box panel)	42
6-15. Adjusting the treadle	44
6-16. Adjusting the presser foot floating amount (minute lifting amount)	44
7. REPLACING PARTS	45
7-1. Fixed knife	45
7-2. Movable knife	45
7-3. Motor and timing belt	46
7-4. Rotary hook RP	49
7-5. Feed bar shaft, Lifting feed shaft	50
8. APPLYING GREASE (-[]3[], []5[] specifications)	51
8-1. When using the operation panel	51
8-2. When using the control box panel	53
9. CONTROL SYSTEM	55
10. CONTROL BOX AND MOTOR	56
10-1. Removing and installing the control box	56
10-2. Control box and motor rating plate	57
10-3. Control circuit board	59
10-4. Checking the motor and power supply	61
10-5. Checking the solenoids	62
11. TREADLE UNIT ASSEMBLY	63
11-1. Types	63
11-2. Standard setting values	64
11-3. Setting method for standard depression strokes	65
12. STANDING OPERATION PEDAL	69
12-1. Installing the foot plug	69
12-2. Connectors	70
13. TROUBLESHOOTING	71
13-1. Sewing	71
13-2. Error code displays	76