Operation Manual

2.2.2 Advancing movement of the feed dog

Caution: Danger of injury!

Turn off the main switch.

Check and set the advancing movement of the feed dog only when the

sewing machine is switched off.

Rule and control

When the stitch regulator lever is operated and set to have the greatest

sewing length, both the needle and the feed dog should not move.

–

Set the stitch regulator lever to “max.”.

–

Bring the needle bar 1 to the loop stroke position.

Turn the handwheel to put the needle bar into its lowest position.

Fix the loop stroke gauge 2 with the block 3 against the needle bar

rocker.

Tighten the screw of the block 3.

Pull out the loop stroke gauge2.

Turn the handwheel until the block 3 lays onto the needle bar

rocker.

–

Move the stitch regulator lever up and down.

During this movement, both the needle and the feed dog should not

move.

Adjustment

–

Loosen screws 4 and 6.

–

Turn thrust cam 5 on the shaft until the zero position of the feed dog

and the needle is reached.

–

Align the thrust cam 5 axially on the shaft.

The fork 7 must lie centric to the run surface of the cam sliding ring.

–

Tighten screws 4 and 6 again.

–

Remove the block 3.