Brother International S-7200B Service Manual - Page 54

S-7200B

8. APPLYING GREASE (-[]3[], []5[] specifications)

47

1. Turn the power switch to “OFF”.

2. Remove the screws and the set screws.

3. Apply grease to each of the holes until the grease

overflows slightly.

4. Tighten the screws and the set screws in order to push

the grease in.

5. Turn the machine pulley by hand to move the needle bar

up and down several times in order to disperse the

grease.

6. Use a cloth to wipe away any excess grease from around

the screws and set screws and from underneath needle

bar bush D.

7. Carry out the reset procedure given below.

<To continue sewing without applying grease>

After the grease has been applied, carry out the following procedure to reset the grease consumption amount.

1. Set DIP switch -3 inside the control box to OFF.

(This will cancel the lock so that the functions can be set.)

2. While pressing the end backtack key (4), press the power switch to turn on the power.

3. Press the start backtack key (3) so that “G” is displayed in the top row of the stitch number display.

4. Press the end backtack key (4) to set the value in the bottom row of the stitch number display to “1”.

5. Then, press and hold the end backtack key (4) for 5 seconds or more.

(The display will turn off.)

6. After this, “Gr” will flash and the reset operation will be complete.

7. After the reset operation is complete, set DIP switch -3 to ON. (The settings will be locked.)

2139M

3685M

<-[]3[]

・

[]5[] specifications >

<-[]5[]specifications >

3683M

3684M

Marked red

Turn the

machine pulley

to lower the

needle bar until

the hole is

visible.

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

Brother International S-7200B Service Manual - Page 54

<To continue sewing without applying grease&gt, While pressing the end backtack key 4

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