10. STANDARD ADJUSTMENTS

 

 

 

 

 

 

 

 

 

10-2. Thread take-up spring

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifications

 

Medium-weight materials

 

 

Heavy-weight materials

 

Seatbelt (-07[])

 

 

(-03[])

 

(-05[])

 

 

 

 

 

 

 

 

Thread take-up spring

 

 

7

− 10

 

2 − 4

 

height (mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread take-up spring

 

0.2

− 0.5

 

 

0.6 − 1.2

 

1.0 − 1.4

 

tension (N)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<Thread take-up spring height>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loosen the set screw (1) and turn the adjuster to adjust.

 

 

Lower Higher

 

 

 

 

 

 

3365B

<Thread take-up spring tension>

Turn the tension stud (2) with a screwdriver to adjust the tension.

Stronger

Weaker

3122B

NOTE:

If the thread tension spring is not adjusted correctly, the upper thread trailing length will be uneven after thread trimming.

10-3. Arm thread guide R

More thread

 

Less thread

Index mark

The standard position of arm thread guide R (1) is when the screw (2) is aligned with the index mark.

Loosen the screw (2) and move arm thread guide R (1) to adjust.

*When sewing heavy material, move arm thread guide R

(1)to the left. (The thread take-up amount will become greater.)

*When sewing light material, move arm thread guide R

(1)to the right. (The thread take-up amount will become less.)

3123B

BAS-311H

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