Adjustment
14
13.04.09
Release of roller presser when reverse sewing
Rule
1. The roller presser should be released when sewing in reverse ( cylinder 8 activated ).
2. When the roller presser and feed dog are lowered, there should be a clearance of
0.5 mm between the c-lock pin 6 and the bearing 7 when the cylinder 8 is not activated.
Fig. 13 - 09
O Adjust the valve 1 ( screws 2 ) so that the valve 1 is switched between the scale setting
0 and 1 when the lever 3 is activated.
O Adjust the coupling part 4 ( screws 5 ) according to rules 1 and 2.
3
4
5
0.5 mm
2
1
7
8
5
6
7
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