Adjustment
12 - 23
109-032
12
.07
Adjusting the thread wiper -909/93
Requirement
1. When the thread wiper 3 is in its resting position, it should have a clearance of approx.
3 mm to the presser foot bar.
2. When the thread take-up lever is at t.d.c. and the stitch length is set at "2", with the
thread wiping mechanism switched on, thread wiper 3 should pass 0.5 behind and
0.5 – 1.0 mm below the needle point.
3. The thread wiper 3 should catch the threads reliably.
4. During its movement thread wiper 3 should not bump against anything.
● Adjust stop 1 (screws 2) in accordance with requirement 1.
● Adjust thread wiper 3 (screws 4 und 5) in accordance with requirement 2.
● Adjust thread wiper 3 (screws 6) in accordance with requirement 3 (approx. 0.3 mm
clearance to the needle).
● Check requirement 4 and, if necessary readjust the previous settings.
Fig. 12 - 22
2
1
5
3
6
109-060
4
4
109-034
ca. 3.0 mm
0.5 - 1.0 mm
0.5 mm
0.3 mm
0.3 mm
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