Strobel VEB 200-2, Mechanic'S Instructions

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MA_VEB200-2_A3_210511_en.doc
3.3 Loop stroke (Fig. 6)
The loop stroke is the needle’s way from its right cusp point to the point where the
point of the large looper finger is placed above needle center.
3.3.1 Setting the loop stroke (Fig. 7)
A T T E N T I O N !
Switch off machine electrically!
At factory the loop stroke is set to 2.8 mm (Fig. 6).
Adjustment:
Screw out universal joint : smaller loop stroke
Screw in universal joint : larger loop stroke
Thread pitch = 0.5 mm per turn.
Proceed as follows to turn the looper shaft:
-
Release screw (3) and push looper (10) to the front.
- Release nut (4) on the looper shaft.
- Release screws (5) in connecting rod head (6).
- Loosen nut (7) and pull out looper shaft and connecting rod head (6) from
universal joint (8).
Do not release bolt (9)!
The loop stroke is determined by means of a special gauge or calliper gauge.