Engaging Solenoid - Pfaff 900/56 Service Manual

8

Engaging solenoid

Requirement
With the needle bar positioned 10 mm before b.d.c. and engaging lever 2 operated, core 4
of the engaging solenoid must have a play of 1 mm.
Turn balance wheel in feeding direction until needle bar is positioned 10 mm before
bottom dead centre.
Loosen screw 1.
Operate engaging lever 2.
Push solenoid housing 3 upwards until solenoid core 4 is fully inside housing.
In this position, make a mark on solenoid housing 3 immediately below solenoid bracket 5.
Push solenoid housing 3 downwards by 1 mm and tighten screw 1.
Check this adjustment according to the requirement.
1 mm
Adjustment
3
1
2
4
5
15