Pfaff 3822-1/22 - 47 Automatic Backtacking System; 48 Stitch Condensation System

44 PFAFF
47 Automatic backtacking system
Requirement: When cylinder 1 (Fig. 1) is extended, the machine must sew backwards.
.1 Fit link 2 (Fig. 2).
.2 Set stitch length at “3 mm”.
.3 With cylinder 1 retracted, set lever 3 (Fig. 1) against lever 4 (screw 5).
.4 Place actuating lever 6 against lever 3 and tighten screw 5.
.5 Take off link 2.
.6 Select correct motor setting on control panel 7 (Fig. 3) (cf. motor manufacturer’s literature).
.7 Sew a sample seam.
48 Stitch condensation system
Requirement: When cylinder 8 (Fig. 1) is extended the machine must sew at a shorter
stitch length than the one set on the feed regulator.
.1 Switch on stitch condensation (key (LED on).
.2 Sew a sample seam.
.3 Set the condensation stitch length: bracket 9 (screws 10).