Dürkopp Adler 52 i Series Service Instructions Manual page 4

7.3
8
8.1
8.2
9
9.1
9.2
9.3
9.4
10
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
11
12
12.1
12.2
12.2.1 Lubricating the machine head................................................... 69
12.2.2 Hook lubrication ........................................................................ 70
12.3
13
14
15
16
2
Hook lifting ................................................................................ 42
Thread mechanism ................................................................. 44
Thread limiter and check spring................................................ 44
Bobbin winder ........................................................................... 46
Thread trimming ..................................................................... 47
Trimming pressure between knives .......................................... 47
Trimming lever .......................................................................... 48
Driver ........................................................................................ 49
Trimming cam ........................................................................... 50
Puller........................................................................................ 51
Synchronous operation of bottom feed and puller .................... 52
Distance from puller to needle .................................................. 53
Puller lifting ............................................................................... 54
Toothed belt tensioning ............................................................ 56
Puller pressure.......................................................................... 57
Feeding wheel replacement...................................................... 58
Setting of cam torsion spring pressure on step length setting
wheel screw .............................................................................. 60
Disk brake pressure setting ...................................................... 61
Electronic control and sewing machine drive ..................... 62
Maintenance ............................................................................ 65
Cleaning.................................................................................... 66
Lubricating ................................................................................ 68
Parts list .................................................................................... 71
Decommissioning................................................................... 73
Disposal................................................................................... 75
Errors in the sewing process ................................................ 77
Technical parameters............................................................. 79
Table of Contents
Service Instructions 52Xi, 52Xi-75 - 00.0 - 11/2021