Manuals / Pfaff / Household Appliance / Sewing Machine

Pfaff 481, 483 service manual Feed driving motion

Models: 481 483

1 32

Page 11

6	Feed driving motion

Requirement

With the longest stitch length set and

the needle bar at 0.6 mm past b.d.c. (cylindrical pin in hole “3”; for PFAFF 481) the needle bar at 0.6 mm past t.d.c. (cylindrical pin in hole “1”; for PFAFF 483)

the feed dog should not move when the reverse-feed control is moved up and down.

●Turn feed driving eccentric 1 (screws 2) according to the requirement. Make sure that the notch in the feed driving eccentric is visible.

10 PFAFF

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Image 11

Pfaff 481, 483 service manual Feed driving motion

Contents

296-12-17 437 Justieranleitung engl Service manual481 483 PFAFF ContentsPage 12-13Abbreviations Notes on safetyTools, gauges and other adjustment aids Notes on the service manualChecking and adjustment aid 4 PFAFF Preliminary adjustment of needle heightRequirement 16,5 mmZeroing the feed motion 2.1 Zeroing procedure with the gearbox closed6 PFAFF 2.2 Zeroing procedure with the gearbox openTurn crank 5 screw 6 according to the requirement PFAFF 3 Zeroing the needle feed motion Adjustment not applicable to PfaffAdjustment aid RequirementFeed lifting motion 5 Feed dog height Feed driving motion 7 Timing the needle feed motion Adjustment not applicable to PFAFF 8.1 For PFAFF Centering the needle in the needle hole8.2 For PFAFF Eccentric hook shaft bearing and hook-to-needle clearance Page Vertical position of bobbin case opener Position of bobbin case opener 18 PFAFF Timing the bobbin case openerAdjustment aid RequirementClearance between presser foot and needle plate 20 PFAFF 15 Eliminating feed differences Adjustment not applicable to PFAFFShift hinge stud 1 nut 2 to adjust the feed stroke of the needle feed Requirement0,5 mm Tension release mechanismAdjust tension release lever 2 screw 3 according to the requirement RequirementThread check spring and thread regulator Turn stop screw 3 nut 4 according to the requirement Knee lever resting positionRequirement Raise the presser foot by means of the presser bar lifter1,3 mm Knee lever playRequirement 1.3 mm between lifting lever 3 and lifting pieceAdjusting the knee lever motion Bobbin winder PFAFF Limiting the stitch length28 PFAFF Matching forwards and reverse stitch lengthsRequirement PFAFF Presser foot pressureRequirement Turn screw 1 according to the requirementPage Telefon 0631 Telefax 0631 172 Telex 45753 PFAFF D G.M. PFAFF AktiengesellschaftPostfach D-67653 Kaiserslautern Königstr D-67655 Kaiserslautern