Removing The Bobbin Case; Threading The Bobbin Thread Tension; Regulating The Bobbin Thread Tension; Inserting The Bobbin Case - Pfaff 3822-1/22 Instruction Manual

12

Removing the bobbin case

.1 Switch off machine!
.2 Set take-up lever at t.d.c. position (balance wheel)
.3 Open latch 1 (Fig. 1) and take out bobbin case
13 Threading the bobbin thread
.1 Insert bobbin in bobbin case so that it turns as shown by arrow when thread is pulled (Fig. 2)
.2 Hold bobbin, pull thread through slot 2 and under tension spring 3.
1 4

Regulating the bobbin thread tension

Screw 4
+ = increase
- = decrease
15

Inserting the bobbin case

.1 Oopen latch 1 (Fig. 1).
.2 Insert bobbin case in hook and release latch 1 (must audibly snap in).
.3 Press bobbin lightly case to make sure it has snapped in properly.
16

Threading the needle thread

Switch off machine!
17

Adjusting the needle thread tension

Knruled nut 5 (Fig. 3)
+ = increase
+ = decrease
14 PFAFF