Pfaff EXPRESSION 2014, Service Manual, Page: 71 / 112

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Attach spring 9.
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Set the base plate against the machine.
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Mount both connection plugs 3 and 4 on the circuit board.
Now the following adjustments are to be carried out:
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Section 3: Timing of the feed motion
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Section 4: Adjustment of feed dog height
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Section 5: Adjustment of synchronizer
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Section 11: Adjustment of hook-to-needle clearance
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Section 12: Hook timing
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Section 13: Adjustment of needle bar height
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Section 14: Adjustment of bobbin case position finger
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Install cable.
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Insert the buttonhole sensor.
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Attach the free-arm cover and secure with both fastening screws 5.
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Bring the feed dog lowering mechanism to its normal working position.
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Engage both feed regulators 6.
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Attach the cable clip.
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Secure the base plate with the three fastening screws to the housing.
Now the following adjustments are to be checked or carried out:
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Section 17: Adjustment of bobbin thread tension
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Section 18: Adjustment of needle thread tension
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After a running-in time of approx. 10 min. - Section 21: Adjustment of equal forward and reverse stitch
length.
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Use testing appliance ABB Metrawatt M 5013 to carry out an electrical safety test according to
VDE 0701.