Adjustment

11.05.14 Bobbin-thread clamp spring(On Model 1246 make these adjustments on both clamp springs.)

Requirement

1.Between clamp spring 5 and the bottom of thread catcher 4, there must be a distance of 0.3 mm.

2.At the front point of reversal of thread catcher 4, the points of clamp spring 5 must be flush with the back edge of catcher 4 (see arrow). There must be a distance of approx. 12 mm between the inner edge of clamp spring 5 and guide sleeve 7.

The bobbin-case must be able to be inserted and removed from the hook without any interference..

6 1

2

7

5

4

4

0.3 mm

Fig. 11 - 29

● Align carrier 1 (screws 2) in such a way that it is in the middle of its adjustment range and parallel to the bedplate of the machine.

●Unhook spring 3.

●Manually pivot thread catcher 4 over clamp spring 5.

●Bend clamp spring 5 in accordance with requirement 1.

●Hook spring 3 back in again.

11 - 34