Pfaff 3334 - Page 84

Fig. 75 Plunger Z of solenoid HM is connected to the clamp lifting lever of
the machine by means of a chain.
Switch SS, which is actuated by plunger Z of electromagnet HM, per
mits starting of the machine only after the work clamp has been
lowered onto the goods completely.
83
From the library of: Superior Sewing Machine & Supply LLC