Brother Z-8550A Manuale Proprietario

 

 

Z-8550A, 8560A 

69 

The standard position of the thread tension spring (1) is 5-8 
mm above the surface of the thread guide (3) when the 
presser foot (2) is lowered. 

1.  Lower the presser foot (2). 
2.  Loosen the set screw (4). 
3. Turn the thread tension bracket (5) to adjust the spring 

position. 

4.  Securely tighten the set screw (4). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The standard tension of the thread tension spring (1) is 0.25 
to 0.30 N. 

1. Press the upper thread slightly above the thread tension 

bracket (5) with a finger to stop the thread spooling out. 

2.  Pull the upper thread down until the thread tension spring 

(1) starts to move down, and measure the tension of the 
thread tension spring (1) at this point. 

3.  Insert the tip of a screwdriver into the groove in the thread 

tension stud (6) and turn it to adjust the tension of the 
thread tension spring (1). 

 
NOTE:  If using a tension gauge (7) (sold separately) to 

measure the tension, take the reading from the scale 
on the side of the red line. 

 
 
 
 
 
 
 
 

3512M

3513M

Becomes weaker

Scale 

Becomes stronger

3802M