Pfaff 481 - Service Manual

SERVICE MANUAL
481
483
296-12-17 437
Justieranleitung engl. 06.09

Summary

Checking and Adjustment Aid

Preliminary Adjustment of Needle Height

Zeroing the Feed Motion

Zeroing Procedure with the Gearbox Closed

Steps to zero the feed motion with the gearbox in a closed configuration.

Zeroing the Needle Feed Motion

Feed Lifting Motion

Feed Dog Height

Feed Driving Motion

Timing the Needle Feed Motion

Centering the Needle in the Needle Hole

For PFAFF 481

For PFAFF 483

Eccentric Hook Shaft Bearing and Hook-to-Needle Clearance

Needle Rise, Final Adjustment of Needle Height and Bobbin Case Positioning Finger

Vertical Position of Bobbin Case Opener

Position of Bobbin Case Opener

Timing the Bobbin Case Opener

Clearance Between Presser Foot and Needle Plate

Thread Check Spring and Thread Regulator

Presser Foot Pressure

Pfaff 481 Specifications