Adjustment
11 - 6
11.05.04 Feed lifting motion
Requirement
At stitch length setting "0" and needle bar position TDC,
1. the feed dog must be at its upper reversal point
2. the control cam 3 must be resting against the feed lifting eccentric 1 and
3. the surface of control cam 3 must be parallel to the bedplate.
4
2
1
3
● Set stitch length to "0" and position the needle bar at its TDC.
● Turn eccentric 1 (screw 2) according to requirement 1.
● Turn control cam 3 (screws 4) according to requirement 2.
For machines without the thread trimming devices -900/22 or -900/24, the
control cam 3 serves as a balance weight.
Fig. 11-05 illustrates a machine with a thread trimmer which has been
mounted.
Fig. 11 - 05
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