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Manuals
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Pfaff Manuals
Sewing Machine
438 Series
Service manual
Pfaff 438 Series Service Manual
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Table of Contents
Table of Contents
Preparations for Adjusting
Centring the Needle in the Needle Hole (in Sewing Direction)
Setting the Stabilizing Rod Parallel to the Needle Bar
Stitch Width Control
Zeroing the Needle for Straight Stitching
Stitch Width Scale
Limiting the Maximum Stitch Width
Adjustung the Locking Lever
Adjusting the Needle Inthe Needle Hole (Sideways)
Adjusting the Needle Throw
Needle Position "Left, Centre, Right
Adjusting the Needle Position Lever
Adjusting the Stitch Length Scale Ring
Adjustment with Closed Gearcase
Zeroing the Bottom Feed
Adjustment with Open Gearcase
Adjusting the Bottom Feed Driving Motion
Bottom Feed Lifting Motion 21+22
Tensloning the Driving Belt in the Gearcase
Adjusting the Hook Bearing Bracket
Preliminary Adjustment of Needle Bar Height
Oil Distributor Ring
Hook Timing and Hook-To-Needle Clearance
Final Adjustment of Needle Bar Height
Bobbin Case Opener
Position of Bobbin Case Opener 29+30
Timing the Bobbin Case Opener
Adjusting the Slack Thread Control
Clearance between Presser Foot and Needle
Feed Dog Height 34+35
Oil Check Valve
Tension Release Mechanism 37+38
Lubrication of Zigzag Eccentric
Hook Lubrication
Knee Lever Stroke Limitation
Knee Lever Play
Bobbin Winder
Presser Foot Pressure
Thread Check Spring and Thread Regulator
Annex for Machines Equipped with Zigzag Control -716
Needle Vibration
Left, Center and Right Needle Positions 46+47
Needle Position Lever 48+49
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Table of Contents
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Preparations for Adjusting
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Centring the Needle in the Needle Hole (in Sewing Direction)
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