Manual Trimming Control - Pfaff 3827-4/33 Instruction Manual

Adjustment
12

Manual trimming control

.06.04
12 - 36
Requirement
Both threads must be cut perfectly in the catcher cutout on both the right and left-hand sides.
3
1
Fig. 12 - 33
Position needle bar at TDC and thread catcher 1 at its front reversal point.
Double a thread and insert it into the cutout of thread catcher 1.
Carry out the trimming process manually.
If both threads are not trimmed in accordance with the requirement, loosen screws 2
and adjust thread catcher 1 (screws 2) with respect to the knife.
Tighten screws 2 firmly, making sure that the thread catcher tip is pointing to the middle
of the needle.
Move catcher stop 4 onto thread catcher 1 and tighten screws 5 firmly.
Mount feed dog and needle plate, making sure that the movement of the feed dog in the
needle plate cutout is not restricted.
1
5
2
4