Brother BAS-300G Manuale Proprietario

 

 

23

BAS-300G, BAS-311G, BAS-326G 

[Thread tension reference] 

Specifications 

Heavy-weight materials 

(-01[]) 

Medium-weight materials 

(-02[]) 

Seatbelt (-03[]) 

Upper thread 

#20 or similar 

#50 or similar 

#4 or similar 

Lower thread 

#20 or similar 

#50 or similar 

#4 or similar 

Upper thread tension (N) 

1.4 

− 1.8 

0.8 

− 1.2 

1.2 

− 2.0 

Lower thread tension (N) 

0.2 

− 0.3 

1.0 

− 1.5 

Pre-tension (N) 

0.1 

− 0.6 

0.1 

− 0.3 

0.3 

− 0.6 

Needle 

DP x 17 #19 

DP x 5 #16 

DP x 17 #25 

Normal sewing speed 

2,000 sti/min 2,000 

sti/min 1,300 sti/min 

 
 

Adjust the thread tension to the weakest possible tension by 
turning the thread tension nut (1) until the bobbin case will 
not drop by its own weight while the thread end coming out 
of the bobbin case is held. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

1. Turn the tension nut (1) (main tension) to adjust the 

tension as appropriate for the material being sewn. 

2.  Use the tension nut (2) (sub tension) to adjust the upper 

thread trailing length to about 40 mm. 

 
 
 
 
 
 
 
 
 
 
 

2536Q 

Stronger

Weaker 

2153B 

Weaker 

Stronger

Weaker 

Stronger