Pfaff expression 2034 Service Manual

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36. Changing the top stepping motor
Note:
The stepping motor for sideways needle bar movement is only exchanged complete.
Removal:
● Remove mains lead.
● Remove detachable work support.
● Remove the housing according to the service manual.
● Remove circlip 97 on zigzag stepping motor 46 (fig. 105).
● Disengage connecting rod 99 and the tooth segment of zigzag stepping motor 46.
● Unscrew and remove both fastening screws 45.
● Lift zigzag stepping motor 46 upwards out of the retainer in the direction of the arm shaft.
● Remove the zigzag stepping motor to the front, out of the housing.
Fitting:
● Install zigzag stepping motor 46 in the housing.
● Pull power cable downward.
● Insert and tighten both fastening screws 45 (fig. 106).
● Insert the pin of connecting rod 99 in the hole of the tooth segment.
● Attach circlip 97.
● Mount the housing according to the service manual.
Note:
Having exchanged the zigzag stepping motor for sideways needle movement, adjustment of the needle
in the needle hole, section 9 must be repeated.
● Carry out a check of all functions.
● Carry out an electrical safety test in accordance with VDE 0701 using testing appliance Metra-
watt 5013.

Pfaff expression 2034 Specifications

General

Brand	Pfaff
Model	expression 2034
Category	Sewing Machine
Language	English