Operating instructions

16. Needle Bar Height

Caution Risk of Injury!

Set the needle bars only in the “Safe Stop” position or with the

machine turned off.

Rule and Control

The needle bar must be set so that approx. 3/4 of the needle eye can

be seen under the left looper point when the needle bar has moved 2.5

mm upward from the looping stroke position

–

Turn the handwheel until the needle is at the lower dead center

–

With a caliber gauge, measure the clearance from the edge 1 up to

the needle bar 2

–

Reduce the dimension on the caliber gauge by the looping stroke

dimension + 2.5 mm.

Example:

Looping stroke=2.7 mm => reduce the dimension by 5.2 mm

–

Set the caliber gauge with the reduced dimension on edge 1

–

Slowly continue to turn the handwheel in the direction of rotation

until the needle bar strikes on the caliber gauge.

Correction

–

Loosen the screws on the set collars 3 and 4.

–

Move the set collars so that the rule is met.

–

Tighten the screws on the set collars 3 and 4.

–

The needle bar must still be easy to turn after the tightening of the

screws.