Removing And Refitting Control Unit - Pfaff 910 Series Service Manual

Adjustment
2.

Removing and refitting control unit

15
2 - 13
7
Fig. 2 - 11
To remove the control unit, pull plug 1 out of the socket of the motor control plate or the
control box.
Remove circlip 2 and disconnect connecting rod 3.
Disconnect the ball joints of connecting rod 7 from the studs on the cutting and control
unit and remove the complete control unit.
To refit the control unit, bring the needle bar to the needle rise position.
Fit connecting rod 3.
Replace the control unit and lightly tighten screws 4.
Attach circlip 2.
Bring needle bar to bdc.
Activate the engaging lever manually so that roller lever 5 falls into control cam 6.
Align the control unit in such a way that the roller of roller lever 5 is positioned in the
middle of the cutout in control cam 6.
Tighten retaining screws 4.
Fit connecting rod 7 and carry out a manual function-test.
If the engaging lever is not released, realign the control unit.
5
6
4
4
1
3
2