Pfaff select 1520 Service Manual

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50. Changing the motor circuit board on motor types UUS 390 and UUS 393
Note:
Capacitor and master switch must always be replaced with the circuit board.
Removal:
z Remove the motor in accordance with section 49 of this manual.
z Slightly raise the two locking tabs 163 and remove cover 162 (fig. 114).
z Unsolder the two cables at points 168.
z Remove the three screws 165.
z Remove circuit board 164.
Refitting:
z Solder the two cables to points 168 at the top of the new circuit board.
z Insert circuit board 164.
z Insert the three screws 165 in contact pins 167 and firmly tighten.
z Push cover 162 onto one side and allow it to engage on the other.
z Measure the simulated leakage current in accordance with section 58 of this manual.
z Fit the motor in accordance with section 49.
z Carry out an electrical safety test in accordance with VDE 0701 using testing appliance ABB Metrawatt
M 5013.

Pfaff select 1520 Specifications

General

Brand	Pfaff
Model	select 1520
Category	Sewing Machine
Language	English