50.11
Basic adjustments on the top knife mounting
Note:
The following adjustment must only be carried out when
- a new knife mounting has been fitted (replacement)
- the adjustments on the existing mounting have been changed.
Adjustment of top knife mounting are made with the latter fitted in the machine.
50.11.1 Cutting angle of the rear top knife
Requirement:
Note:
Adjustment is made on three allen screws; allen screw 26 is only accessible when
rear top knife 7 has been removed.
.1 Remove top knife 7.
.2 Unscrew screws 26 and 27 just enough that they protrude by about 0.2 mm on the side of the
top knife on which rear top knife 7 is afterwards fitted.
.3 Cement in screws 26 and 27.
.4 Screw on rear top knife 7.
.5 Turn screw 28 in so that it is against the rear top knife, then cement it in.
.6 Check cutting and and cutting width.
Angle correction: remove rear top knife, then turn screw 26.
60
PFAFF
Rear top knife 7 must be at a diagonal of 0.05 to 0.1 mm in relation to hook
knife 20 (cutting angle).