Stopping The Knife On The Double Cycle - Pfaff 3117 Instruction Manual

14

Stopping the knife on the double cycle

.12.12
Requirement
With the engaging cylinder retracted the locking lever 1 must be touching the pin 2 of the
knife latch.
3
0.3 to 0.5 mm
Fig. 14 - 33
Bring the machine to its program end position and disengage the stop motion device.
Loosen nut 3 and wind screw 4 back completely.
Loosen nut 5 and move stop 6 so that there is a clearance of 2 mm between the swit-
ching lever 7 and lever 8. The stop must be parallel to lever 11.
Tighten nut 5.
Wind screw 4 until there is a clearance of 0.3 to 0.5 mm between screw 4 and lever 8.
Tighten nut 3.
Engage the stop motion device.
Press lever 8 against the switching lever 7.
In this position move the clamp piece 9 so that the locking lever 1 is touching the pin 2 of
the knife latch.
Tighten screw 10.
Disengage the stop motion device.
If necessary, remount the thread tensioning plate.
5 6
7
2 mm
8
4
Adjustment
11
1
2
10
9
14 - 35