3. FUNCTION SETTINGS

Memory switch No. 80 - 88

No.

Initial value

Setting range

Setting details

 

80*

0

-7 - 7

Backward depression on (thread trimming) point for treadle

 

81*

0

-5 - 5

Backward depression 1st step on (presser foot lifting) point for treadle

 

82*

0

-5 - 5

Forward depression 1st step on (presser foot lowering) point for treadle

 

83*

0

-5 - 5

Forward depression on (starting) point for treadle

 

84*

0

-5 - 5

Variable speed range starting point for treadle

 

85*

0

-6 - 6

High speed range reaching point for treadle

 

86*

0

-2 - 2

Variable speed range starting point for standing operation variable speed pedal

87*

0

-2 - 2

High speed range reaching point for standing operation variable speed pedal

 

 

 

Treadle speed curve

 

 

 

 

Sewing speed

 

 

 

 

0: Constant

 

 

 

 

1: Curves downward

 

88*

0

0 - 2

2: Curves upward

 

 

 

 

Treadle depression stroke

2257M

 

 

 

 

* : Settings indicated with * are enabled after the power is turned off and then back on again.

When the neutral position for the treadle is taken as “0”, depressing the treadle forward results in (+) values and depressing the treadle backward results in (-) values, and these are added to or subtracted from the standard setting value.

Sewing

speed

Treadle backward

Neutral

Treadle forward

depression stroke

 

depression stroke

 

 

 

 

 

 

Sewing

 

 

speed

 

 

Treadle backward

Neutral

Treadle forward

depression stroke

 

depression stroke

 

 

 

 

 

 

Sewing

 

 

speed

 

 

Treadle backward

Neutral

Treadle forward

depression stroke

 

depression stroke

 

 

 

(Ex. 1) No. 80 setting

(Ex. 2) No. 83 setting

(Ex. 3) No. 85 setting

2258M

2259M

2260M

9

Z-8550A, 8560A