Strobel VEB 200-1, Mechanic'S Instructions

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MA_VEB200-1-2_A2_181015_en
3.4
3.4.1
Looper
Removing and remounting the looper (Fig. 7)
A T T E N T I O N !
Switch off machine electrically!
Release cap screw (3) and pull the looper (10) towards the front.
When remounting the looper (10) make sure that it is completely pushed in and
that it’s positioning surface fits exactly to the looper take-up.
Tighten cap screw (3).
3.4.2
The looper shaft with ball jointed lever (12) can be taken out after removing the
looper (10) and releasing set collars (7) and (11).
Removing and remounting the looper shaft (Fig. 7)
3.4.3
The looper deflection is 19 +0.5 mm (control dimension).
Looper deflection (Fig. 3)
3.4.4
In the moment of the loop take-up the looper fingers should be placed 0.1 - 0.2
mm above the needle, also when a thicker needle is used. The needle should
not be touched!
The horizontal distance from the large looper finger to the needle eye should be
1.5 mm (
Setting the looper (Fig. 8)
Fig. 6). On the left side, when the loop is released, the needle should
move centrically through the looper fingers. These values can be set through
turning and moving eccentric bolt (1) (release adjusting screw (2)) and through
turning the looper shaft against connecting rod head (6) (Fig. 7).
Proceed as follows to turn the looper shaft (Fig. 9):
- Release nut (4) on the looper shaft.
- Release screws (5) in connecting rod head (6).
- Slightly twist the looper shaft (1) with the open-end spanner.
Check the looper movement through carefully moving the main shaft by means
of the handwheel. Check if all fastening screws are tight!