DURKOPP ADLER 969 Classic, Service Instructions Manual

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Table of Contents
2 Service Instructions 969 - 06.0 - 03/2019
8.1.2 Moving the feed dog sideways ................................................... 42
8.2
Setting the feed dog movement.................................................. 43
8.2.1 Setting the feed movement......................................................... 43
8.2.2 Setting the feed dog height at top dead center........................... 44
8.2.3 Setting the feed dog stroke movement....................................... 45
8.3
Setting the feeding eccentric with adjusting tube ....................... 46
9 Aligning the needle bar linkage............................................... 48
9.1 Moving the needle bar linkage sideways .................................... 48
9.2 Aligning the needle bar linkage in the sewing direction.............. 50
10 Position of the hook and needle ............................................. 51
10.1 Tensioning the hook drive toothed belt....................................... 51
10.2 Setting the dead center of the reciprocating hook movement .... 52
10.3 Setting the loop stroke position .................................................. 54
10.4 Setting the hook clearance ......................................................... 55
10.5 Setting the needle guard ............................................................ 57
10.6 Setting the loop former ............................................................... 58
10.7 Setting the needle bar height...................................................... 59
11 Setting the sewing feet ............................................................ 61
11.1 Setting the sewing foot feed ....................................................... 61
11.1.1 Setting the zero stroke of the sewing feet and the tension
force of the torsion spring ........................................................... 61
11.1.2 Setting the drive dog of the presser foot bar .............................. 63
11.1.3 Setting the feed stroke of presser foot and sewing foot ............. 64
11.1.4 Setting the stroke movement for the feeding foot....................... 66
11.2
Setting the foot stroke................................................................. 67
11.2.1 Setting the foot stroke using the hand lever ............................... 67
11.2.2 Setting the foot stroke using the pneumatic cylinder .................. 68
12 Setting the thread system........................................................ 69
12.1 Setting the thread tension spring................................................ 69
12.2 Setting the winder....................................................................... 70
12.3 Setting the hook thread guide..................................................... 74
13 Setting the thread cutter .......................................................... 75
13.1 Setting the thread cutter timing................................................... 75
13.2 Setting the initial position of the thread cutter and the position
of the thread-pulling knife ........................................................... 76
13.3 Setting the pneumatic cylinder lever........................................... 81
13.4 Setting the cutting pressure........................................................ 82
13.5 Setting the hook thread clamp.................................................... 83
14 Soft start.................................................................................... 84
15 Programming ............................................................................ 85
16 Maintenance.............................................................................. 91
16.1 Cleaning ..................................................................................... 92
16.2 Lubricating .................................................................................. 94
16.3 Servicing the pneumatic system ................................................. 96
16.3.1 Setting the operating pressure ................................................... 96
16.3.2 Draining the water condensation ................................................ 97