Brother S 7200 Manual

							 
 
S-7200A 
3. INSTALLATION 
5
3. Power switch 
(1) Power switch 
(2)  Screws [2 pcs] 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4. Oil pan 
(1)  Head cushions (left) [2 pcs] 
(2)  Head cushions (right) [2 pcs] 
(3) Oil pan 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5. Rubber cushions 
(1)  Rubber cushions [2 pcs] 
(2)  Nails [4 pcs] 
 
6. Knee lifter complying bar 
(3)  Knee lifter complying bar 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2092M
2093M
Operator 
2094M 
						

							 
 
S-7200A 
3. INSTALLATION
6
7. Machine head 
(1) Hinges [2 pcs] 
(2) Machine head 
(3) Head rest 
 
NOTE: 
Tap the head rest (3) securely into 
the table hole. If the head rest (3) is 
not pushed in as far as it will go, the 
machine head will not be sufficiently 
stable when it is tilted back. 
 
 
 
 
 
 
 
 
 
8. Operation panel 
(1) Operation panel 
(2)  Screws [2 pcs] 
(Use for tightening rear cover) 
 
 
 
 
 
 
 
 
 
 
9. Sticker (Remove) 
(1) Sticker 
 
 
 
 
 
 
 
 
 
 
 
 
 
10. Cotton stand 
(1) Cotton stand 
 
NOTE: 
Securely tighten the nut (4) so that 
the two rubber cushions (2) and the 
washer (3) are securely clamped and 
so that the cotton stand (1) does not 
move. 
 
 
 
 
 
 
 
 
2095M
2096M
2097M
2098M 
						

							 
 
S-7200A 
3. INSTALLATION 
7
11. Knee lifter plate 
(1)  Knee lifter plate 
(2) Bolt 
 
*  Loosen the bolt (3) and move the 
knee lifter plate (1) to a position 
where it is easy to use. 
 
 
 
 
 
 
 
1.  Turn the machine pulley so that the feed dog is below the 
top of the needle plate. 
2. Lower the presser foot (5) by using the lifting lever (4). 
 
 
 
 
 
 
3.  Loosen the nut (6). 
4.  Turn the screw (8) to adjust so that the amount of play in 
the knee lifter (7) is approximately 2 mm when the knee 
lifter plate (1) is gently pressed. 
5.  Securely tighten the nut (6). 
6.  Loosen the nut (9). 
7.  Turn the screw (10) until the distance between the end of 
the screw (10) and the knee lifter (11) is approximately 8 
mm. 
8.  Turn the adjusting screw (10) to adjust so that the presser 
foot (5) is at the desired position within a distance of 16 
mm of the needle plate when the knee liter plate (1) is 
fully pressed. 
9. After adjustment is completed, securely tighten the nut 
(9). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2099M
2100M
2101M
2102M
Within 16 mm 
						

							 
 
S-7200A 
3. INSTALLATION
8
3-3. Lubrication (-40[], 43[] specifications) 
* If the sewing machine is -45[] specifications, it is a 
complete dry type machine, and so no lubrication is 
necessary. 
 
      CAUTION 
 
Do not connect the power cord until lubrication has been completed, otherwise 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 
diarrhea. 
Keep the oil out of the reach of children. 
y The sewing machine should always be lubricated and the 
oil supply replenished before it is used for the first time, 
and also after long periods of non-use. 
y Use only the lubricating oil (Nisseki Mitsubishi Sewing 
Lube 10N; VG10) specified by Brother. 
1.  Tilt back the machine head. 
2.  Remove the rubber cap (1), and pour 150 ml of lubricating 
oil from the accessory oil bottle (2) into the oil tank (3). 
(Use the reference line (4) as a guide when pouring.) 
3.  Replace the rubber cap (1). 
 
 
 
 
 
 
 
 
4.  Return the machine head to its original position. 
5.  Check that the oil gauge (6) comes to the upper reference 
line in the oil gauge window (5). 
*  Be sure to add more oil if the oil gauge (6) is below the 
lower reference line. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 2104M
Upper reference 
line 
Lower reference 
line 
2105M 
						

							 
 
S-7200A 
3. INSTALLATION 
9
3-4. Connecting the cords 
     DANGER 
 
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet 
before opening the face plate of the control box. Touching areas where high voltages are present can result in 
severe injury. 
 
     CAUTION 
 
Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done. 
Do not connect the power cord until all cords have been connected. 
The machine may operate if the treadle is depressed by mistake, which could result in injury. 
Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious 
electric shock, and problems with correct operation may also occur. 
3-4-1. Opening the control box cover 
(1) Screw 
(2) Cover 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3-4-2. Connecting the cords 
1. Sewing machine cords 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2106M
2107M 
						

							 
 
S-7200A 
3. INSTALLATION
10
(1)  10-pin operating panel connector 
(2) 14-pin encoder connector 
(3) 14-pin machine connector 
(4)  7-pin head detector unit connector 
 
Refer to the following page for the 4-pin 
motor connector. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. Repeat cable tie 
(1)  Repeat cable tie 
 
NOTE: 
y Bind the cords in such a way that the 
connector does not get pulled out. 
y All cords that come out from the 
control box should be secured to the 
cord holder (2) using the repeat 
cable tie (1), otherwise vibration from 
the sewing machine may cause the 
cords to become disconnected, 
which can cause problems with the 
operation of the control box. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Push in securely until
the tabs (5) engage. 
2108M


Press 
the tab. 
2109M
 
Cords
2110M 
						

							 
 
S-7200A 
3. INSTALLATION 
11
3. Other cords 
(1)  6-pin power supply connector 
(2)  4-pin motor connector 
(3) Wire clip 
(4) Power cord 
 
Insert the power cord plug (5) into a 
wall outlet. 
 
1. Attach an appropriate plug to the 
power cord (4). (The green and 
yellow wire is the ground wire.) 
2. Insert the plug into a 
properly-grounded AC power supply. 
NOTE: 
Do not use extension cords, 
otherwise machine operation 
problems may result. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4. Ground wire 
(1) Ground wire 
(2)  Screw [With washer] 
(3) Screw 
 
 
 
 
 
 
 
 
 
 
 
 
2111M
 
Green and yellow wire
(ground wire) 
2112M
Ground symbol
Oil pan
2113M 
						

							 
 
S-7200A 
3. INSTALLATION
12
3-5. Test operation (Operating the treadle) 
     CAUTION 
 
Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in 
personal injury or damage to the machine. 
 
Press the ON power switch (1). 
The power indicator (2) will illuminate. 
 
NOTE: When turning the power switch on for the first time 
The treadle and the operation panel will not operate for 
approximately four seconds after the power switch is 
turned on. 
After approximately four seconds, “iniT rPM” 
(initialization) will appear in the operation panel. After 
“iniT rPM” appears, treadle operation will then be possible. 
(The operation panel will change to the stitch number 
display.) 
This message will not appear the second and subsequent 
times that the power switch is turned on. 
 
 
 
 
 
1. Check that the machine sews at low speed when the 
treadle (3) is gently pressed to position (B).   
2.  Then check that it sews at high speed when the treadle 
(3) is gently pressed to position (C). 
3. After pressing the treadle (3) forward, check that the 
needle is lowered to the top of the needle plate when the 
treadle (3) is returned to the neutral position (A). (when 
needle down stopping has been set.)   
4. If the treadle (3) is pressed to position (D), thread 
trimming is carried out and the needle then rises above 
the needle plate and stops. 
2114M 2115M
2116M
2117M 
						

							 
 
S-7200A 
4. PREPARATION BEFORE SEWING 
13
4. PREPARATION BEFORE SEWING 
4-1. Installing the needle 
     CAUTION 
 Turn off the power switch be fore installing the needle. 
The machine may operate if the treadle is depres sed by mistake, which could result in injury. 
1. Turn the machine pulley to  move the needle bar to its 
highest position. 
2.  Loosen the screw (1). 
3.  Insert the needle (2) in a stra ight line as far as it will go, 
making sure that the long groo ve on the needle is at the 
left, and then securely ti ghten the screw (1). 
 
 
 
 
 
 
 
 
 
 
 
4-2. Removing the bobbin case 
     CAUTION 
  Turn off the power switch befo re removing the bobbin case. 
The machine may operate if the treadle is depres sed by mistake, which could result in injury. 
1. Turn the machine pulley to  raise the needle until it is 
above the needle plate. 
2. Pull the latch (1) of the  bobbin case upward and then 
remove the bobbin case. 
3. The bobbin (2) will come  out when the latch (1) is 
released. 
 
y  There is an anti-spin spring  (3) inside the bobbin case. 
The anti-spin spring (3) prevents  the bobbin from racing at 
times such as during  thread trimming. 
y  Use bobbins (2) made of light  alloy as specified by 
BROTHER. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2118M 0795M
Front 
Long  
groove 
2119M
2120M
For thick materials 
0798M 2121M 
						

							 
 
S-7200A 
4. PREPARATION BEFORE SEWING 
14
2126M 
4-3. Winding the lower thread 
     CAUTION 
 
Do not touch any of the moving parts or press any objects against the machine while winding the lower thread, as 
this may result in personal injury or damage to the machine. 
1.  Turn on the power switch. 
2.  Place the bobbin (1) onto the bobbin winder shaft (2). 
3.  Wind the thread several times around the bobbin (1) in the 
direction indicated by the arrow. 
4.  Push the bobbin presser arm (3) toward the bobbin(1). 
5.  Raise the presser foot with the lifting lever. 
6.  Depress the treadle. Lower thread winding will then start. 
7.  Once winding of the lower thread is completed, the bobbin 
presser arm (3) will return automatically. 
8.  After the thread has been wound on, remove the bobbin 
and cut the thread with the knife (4). 
 
 
 
 
 
*  Loosen the screw (5) and move the bobbin presser (6) to 
adjust the amount of thread wound onto the bobbin. 
NOTE: 
The amount of thread wound onto the bobbin should 
be a maximum of 80 % of the bobbin capacity. 
 
 
 
 
 
 
 
 
 
4-4. Installing the bobbin case 
     CAUTION 
 
Turn off the power switch before installing the bobbin case. 
The machine may operate if the treadle is depressed by mistake, which could result in injury. 
1. Turn the machine pulley to raise the needle until it is 
above the needle plate. 
2.  While holding the bobbin so that the thread winds to the 
right, insert the bobbin into the bobbin case. 
3.  Pass the thread through the slot (1) and under the tension 
spring (2), and then pull it out from the thread guide (3). 
4.  Check that the bobbin turns clockwise when the thread is 
pulled. 
5. Hold the latch (4) on the bobbin case and insert the 
bobbin case into the rotary hook. 
 
 
 
 
 
 
 
 
 
2122M 
2123M 2124M
Less thread More thread 
0802M 2125M