Axial blocking of the upper knite Setting the standard thread tensions Correcting the thread tensions 3-thread overedge seam Thread chart Adjusting the stitch length on hobbylock 784 and 786 19,20 Adjusting the differential feed (hobbyfock 786) Disengaging the upper knife Adjusting the seam width...
____ ___I Installing the thread spool stand Loosen clamp screw A a little and pull washer up to the screw head. Insert thread spool stand 1 from the top. clamp screw A securely. Tighten Insert four thread spool holders 17 with centering pieces 36 fully in the holes of the thread spool stand.
Threading the right needle Threading of guide wires 18 and of the thread guide behind the carrying handle is shown on page 7. H— •f? 3 111.3 In the left-hand illustration the threading path is shown from the green tension (1> up to the right needle (6>.
This table indicates possible settings of the differential feed. In order to make sure about the setting required for the fabric you wish to process, a sewing test has to be made. The differential feed can also be set during sewing. Setting of dif- Correct Fabric...
Disengaging the upper knife Remove lint box 8. Open work support 12 and looper cover 10. If necessary, loosen screw 38 for axial upper knife blocking. Push rotary lever 27 of the axial upper knife guide fully to the right, hold it, and turn it forwards until pin A engages in the hole of the knife.
Sewing problems and solutions These machines have been developed for easy operation, and there are no difficult adjustments to be made. Sewing problems of the kind described below may occur due to minor adjustment- and operation errors. They can easily be corrected by following the instructions below. Solution Cause Problem...