Setting the stitch length adjusting wheels
28 Service Manual 867 Version 02.0 - 04/2015
5. Carefully turn the shaft (5) clockwise using a 10 mm wrench.
Fig. 18: Setting the upper stitch length adjusting wheel II
6. Check whether the frame (7) for the stitch regulator gear can be moved.
In machines that have a stitch adjustment lever, check this by press-
ing the stitch adjustment lever.
In machines that do not have a stitch adjustment lever, insert the
locking peg or a hex key into the opening (9) and try to move the
frame (7) up and down.
7. As soon as the frame (7) no longer moves: Remove the wrench from
the shaft (5).
8. Turn the scale (6) such that the 0 is exactly next to the adjusting mark (4).
9. Place the upper stitch length adjusting wheel (1) onto the shaft (5) and
tighten it with a wrench (7).
10.Screw down the upper stitch length adjusting wheel (1) using screw (2).
11.Check whether the plates for the stitch regulator gear (8) are parallel to
one another.
If the plates (8) are not parallel to one another:
12.Remove the tension spring (10).
13.Loosen the screw (11).
14.Manually position the plates (8) so that they are parallel.
15.Tighten the screw (11).
16.Attach the tension spring (10).
(8) - Frame for the stitch regulator gear
(9) - Plates for the stitch regulator gear
(10) - Hole
(11) - Tension spring
(12) - Screw
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