Pfaff 937 User Manual

Adjustment
11.06.09 Needle thread tension release
Requirement
1. With hand lever 4 raised, the clearance between the tension disks must be 0.5 mm.
2. With the rock shaft 6 in its neutral position there must be a clearance of 0.5 mm
between trip 8 and release cone 9.
3. With trip 8 at the highest point of release cone 9, the tension disks must be at least
0,5 mm apart.
4. With the needle trimmer in resting position and the presser foot on the needle plate the
tension must be fully effective.
● Loosen screws 1, 2 and 3.
● Lift hand lever 4.
● Adjust the clearance between the tension disks in accordance with requirement 1 by
turning hollow shaft 5. Clamp a screwdriver in hollow shaft 5 to turn it.
● Tighten screw 3.
● Bring the rock shaft 6 to its starting position.
2
0.5 mm
7
Fig. 11 - 53
4
10
11
1
5
3
6
8
9
11 - 55
0.5 mm

Pfaff 937 Specifications

General

Brand	Pfaff
Model	937
Category	Sewing Machine
Language	English