DURKOPP ADLER H-Type 969, Service Instructions Manual

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Table of Contents
2 Service Instructions 969 - 01.0 - 12/2015
8.2.2 Setting the feed dog height at top dead center........................... 43
8.2.3 Setting the stroke movement ...................................................... 44
9 Aligning the needle bar linkage............................................... 47
9.1 Moving the needle bar linkage sideways .................................... 47
9.2 Aligning the needle bar linkage in the sewing direction .............. 49
10 Position of the hook and needle ............................................. 51
10.1 Tensioning the hook drive toothed belt....................................... 51
10.2 Adjusting the dead center of the reciprocating movement of
the driver..................................................................................... 52
10.3 Setting the loop stroke position .................................................. 53
10.4 Setting the hook clearance ......................................................... 54
10.5 Adjusting the loop former............................................................ 55
10.6 Setting the needle bar height...................................................... 56
11 Adjusting the sewing foot feed ............................................... 59
11.1 Adjusting the zero stroke of the feet, tension force of the
torsion spring .............................................................................. 59
11.2 Adjusting the drive dog for the presser foot bar.......................... 60
11.3 Aligning the feed stroke of the feet ............................................. 61
11.4 Setting the stroke movement for the feeding foot ....................... 62
12 Adjusting the foot stroke ......................................................... 65
12.1 Adjusting the foot stroke using the hand lever............................ 65
12.2 Adjusting the foot stroke using the pneumatic cylinder............... 66
13 Adjusting the thread system ................................................... 67
13.1 Setting the thread tensioning spring ........................................... 67
13.2 Setting the winder ....................................................................... 68
13.3 Setting the hook thread guide..................................................... 72
14 Adjusting the thread cutter...................................................... 75
14.1 Adjusting the thread cut-off point ................................................ 75
14.2 Basic setting of the thread cutter ................................................ 76
14.3 Adjusting the position of the movable knife ................................ 77
14.4 Adjusting the cutting pressure of the knife.................................. 78
15 Soft start .................................................................................... 81
16 Maintenance .............................................................................. 83
16.1 Cleaning the filter element .......................................................... 83
16.2 Lubricating the needle bar .......................................................... 85