Table of Contents
Contents ..................................................................................Page
13 Adjustment ....................................................................................................................... 5
13.01 Tools, gauges and other accessories .................................................................................... 5
13.02 Abbreviations ......................................................................................................................... 5
13.03 Explanation of symbols .......................................................................................................... 5
13.04 Adjusting basic machine ........................................................................................................ 6
13.04.01 Feed dog position .................................................................................................................. 6
13.04.02 Feed dog height ..................................................................................................................... 7
13.04.03 Needle position to needle hole .............................................................................................. 8
13.04.04 Needle height (pre-calibrating) ............................................................................................... 9
13.04.05 Feeding motion .................................................................................................................... 10
13.04.06 Feed lifting motion ............................................................................................................... 11
13.04.07 Home position of roller presser drive .................................................................................. 12
13.04.08 Synchronisation of roller presser and feed dog ................................................................... 13
13.04.09
Release of roller presser when reverse sewing .......................................................................14
13.04.10 Hook-to-needle clearance, needle bar rise, needle height and needle guard
.......................... 15
13.04.11 Bobbin lifter. ........................................................................................................................ 16
13.04.12 Safety clutch ........................................................................................................................ 17
13.04.13 Clearance between roller presser and needle plate ............................................................ 18
13.04.14 Roller presser pressure ........................................................................................................ 19
13.04.15 Needle thread tension release ............................................................................................. 20
13.04.16
Thread check spring
(with the PFAFF 1243 and PFAFF 1244 without thread trimmer -900/56)
. 21
13.04.17 Thread check spring (with the PFAFF 1244 with thread trimmer -900/56)
............................... 22
13.04.18 Bobbin winder ...................................................................................................................... 23
13.05 Adjusting thread trimmer -900/56 .................................................................................... 24
13.05.01 Control cam ( pre-calibrating ) .............................................................................................. 24
13.05.02 Tripping lever ....................................................................................................................... 25