Knife Bar Height - Pfaff 3117 Instruction Manual

14

Knife bar height

.12.06
Requirement
The height of the knife bar 1 must be adjusted with the aid of the knife adjustment
gauge 2.
Fig. 14 - 27
Bring the machine to its program end position.
Disengage the stop motion device.
Manually push out the needle thread scissor.
Mount the knife adjustment gauge 2 onto the knife carrier 3.
Carefully push the knife bar 1 down with your finger and check that the knife adjustment
gauge 2 can enter the cutting slot 4.
If not, proceed to chapter 14.12.07 Position of the knife carrier relative to the cutting
slot.
Turn the handwheel until the switch function of the knife is carried out.
Hold the thread monitor finger forwards.
Turn the drive pulley in its direction of rotation until screw 5 becomes visible.
Loosen screw 5 a little.
Turn the drive pulley in its direction of rotation until the knife bar 1 is at its BDC.
In this position the knife adjustment gauge 2 must rest on the needle plate 6 ( = 16.5
mm ).
Tighten screw 5.
Carry out this adjustment with a needle plate with a knife actuating hole
mounted.
3
2
6
5
4
Adjustment
1
14 - 29