Pfaff 3811-2/45 Instruction Manual page 60

.1 Switch off the machine (mains switch).
.2 Remove the protective cover 1 from the angle encoder.
.3 Loosen the retaining screw of the angle encoder a little.
.4 Turn the machine on (mains switch): the
On the -2/45 the
.5 Set the stitch length at 4 mm.
.6 Attach the connecting rod 4 (fig. 3).
.7 Loosen screw 3 (fig. 2).
.8 Turn the angle encoder 1 (fig. 2) until the roller on the actuating lever 2 is at the "0" on the scale.
.9 In this position, tighten the retaining nut on the angle encoder.
.10 Place the roller of the actuating lever 2 against the control cam and tighten the screw 3 (fig. 3).
.11 Remove the connecting rod 4.
.12 - Carry out a control (see requirement)
- Screw the protective cover back on the angle encoder
- Mount the cover plate.
.1 Test seam
.2 If necessary, adjustment at the Poti "0".
.3 To carry out the fine adjustment the connecting rod 4 must be attached again.
Note: The default setting of the Poti "0" (fig. 4) is the position "0" and as a rule it should not be
altered or altered very little (for altering the rough adjustment)!
Nevertheless, if the Poti "0" should be altered strongly, a rough adjustment of the
basic setting ("0" position of the Poti) can be made as follows:
- Turn Poti "0" 20 rotations to the left (direction -).
60
After pressing the
- the actuating lever 2 should be at "0" on the control cam scale, and
- the sewing machine should sew smoothly (without fullness).
key must be activated manually.
(fig.4)
When the key is activated (LED on), the machine should sew smoothly
(without fullness).
key:
key is activated automatically (LED on).