Brother S 7200 Manual

 
 
S-7200A 
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)
25
6-2. Adjusting the needle up stop position 
1. While pressing the needle up/down key (1), turn on the 
power switch. 
2.  “n.0 xx” will appear in the main display (2). 
(“xx” is the setting value for the needle up stop position, 
and “0” is the default setting.) 
3. Press the rightmost    or    key (3) to change the 
setting value for the needle up stop position. 
• If you press the    key, the setting value will increase 
up to 10 and...

 
 
S-7200A 
7. SEWING 
26
7. SEWING 
     CAUTION 
 
Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, 
injury may result. 
Turn off the power switch at the following times. 
The machine may operate if the treadle is depressed by mistake, which could result in injury. 
y When threading the needle 
y When replacing the bobbin and needle 
y When not using the machine and when leaving the machine unattended 
Do not touch any of the moving...

 
 
S-7200A 
7. SEWING 
27
7-3. Sewing condensed stitches 
y If you press the actuator (1) or the reverse lever (2) while 
sewing is in progress, you can sew stitches (forward 
direction) with small stitch lengths. 
y Before carrying out sewing, set the stitch length for 
condensed stitches as follows. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1.  Lift up the dial lock lever (3) to release the lock. 
2. Turn the stitch length dial (4) to the stitch length to be 
used for condensed stitches. 
3.  Tilt back...

 
 
S-7200A 
8. THREAD TENSION 
28
8. THREAD TENSION 
8-1. Adjusting the thread tension 
     CAUTION 
 
Turn off the power switch before removing or inserting the bobbin case.   
The machine may operate if the treadle is depressed by mistake, which could result in injury. 
 
Good even stitches 
 
       Upper thread     
       Lower thread     
 
    
 
Upper thread tension too weak or 
lower thread tension too strong  
Increase the upper thread tension. 
Decrease the lower thread tension....

 
 
S-7200A 
8. THREAD TENSION 
29
8-2. Adjusting the presser foot pressure 
 
Correct stitches 
 
       Upper thread     
    
 
Skipped stitches occur   
   
Increase the pressure. 
  Uneven stitch length     
    
 
Stitches are puckered  
Decrease the pressure. 
 
The presser foot pressure should be as weak as possible, 
but strong enough so that the material does not slip. 
1. Loosen the adjusting nut (1). 
2.  Turn the presser adjusting screw (2) to adjust the presser 
foot pressure. 
3.  Tighten...

 
 
S-7200A 
9. CLEANING 
30
9. CLEANING 
     CAUTION 
 
Turn off the power switch before carrying out cleaning.   
The machine may operate if the treadle is depressed by mistake, which could result in injury. 
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get 
into your eyes or onto your skin, otherwise inflammation can result. 
Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and...

 
 
S-7200A 
9. CLEANING 
31
2. Lubrication 
A. Gearbox oil quantity 
NOTE: 
y Check the quantity of oil in the gearbox immediately 
after tilting back the machine head. 
When the machine head is left for long periods in the 
tilted-back position, the amount of oil in the felt inside 
the gearbox drops and the oil level seen from the oil 
window (1) rises, so that it becomes impossible to 
measure the actual oil level accurately. 
y The position of the oil level in the oil window (1) will 
vary depending...

 
 
S-7200A 
9. CLEANING 
32
B. Oil tank oil quantity (-40[], 43[] specifications) 
Check the oil gauge window (1), and add more oil if the oil 
gauge (2) is below the lower reference line. 
(Refer to page 8.) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3. Checking 
1.  Replace the needle if it is bent or if the tip is broken. 
2. Check that the upper threads have been threaded 
correctly. (Refer to page 15.) 
3.  Carry out a test sewing. 
 
 
 
 
 
2190M
2189M
Upper reference 
line
Lower...

 
 
S-7200A 
9. CLEANING 
33
9-2. Applying grease (When “GREASEUP” appears) 
If “GREASEUP flashes on the main display (1) and a buzzer sounds when the power switch is turned on, it means that 
grease needs to be applied. (The sewing machine will not operate at this time, even if the treadle is depressed.) 
Apply grease as required, while referring to the following for details. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1.  Press the RESET key (2). 
2.  The main display (1) will change...

 
 
S-7200A 
9. CLEANING 
34
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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...