DURKOPP ADLER 867 Service Manual

Table of Contents
Service Instructions 867 - 04.0 - 10/2019 1
1 About these instructions ........................................................... 5
1.1 For whom are these instructions intended?.................................. 5
1.2 Representation conventions – symbols and characters............... 5
1.3 Other documents.......................................................................... 6
1.4 Liability..........................................................................................7
2 Safety...........................................................................................9
2.1 Basic safety instructions............................................................... 9
2.2 Signal words and symbols used in warnings.............................. 10
3 Working basis........................................................................... 13
3.1 Order of the adjustments............................................................ 13
3.2 Laying the cables........................................................................ 13
3.3 Removing the covers.................................................................. 14
3.3.1 Tilting the machine head ............................................................ 14
3.3.2 Assembling and disassembling the arm cover ........................... 15
3.3.3 Assembling and disassembling the head cover.......................... 16
3.3.4 Assembling and disassembling the valve cover......................... 17
3.3.5 Opening and closing the throat plate slides................................ 18
3.3.6 Assembling and disassembling the throat plate ......................... 19
3.3.7 Assembling and disassembling the feed dog ............................. 20
3.4 Flats on shafts ............................................................................ 21
3.5 Locking the machine in place ..................................................... 22
3.6 Adjusting the handwheel into position ........................................ 24
4 Adjusting the handwheel scale............................................... 25
5 Positioning the arm shaft......................................................... 26
6 Toothed belt wheels................................................................. 27
6.1 Positioning the upper toothed belt wheel.................................... 27
6.2 Positioning the lower toothed belt wheel .................................... 29
7 Adjusting the stitch length adjusting wheels ........................ 30
7.1 Adjusting the upper stitch length adjusting wheel....................... 31
7.2 Adjusting the lower stitch length adjusting wheel ....................... 32
7.3 Adjusting the stitch length limit ................................................... 33
7.4 Adjusting the eccentric for the forward and backward stitches... 34
8 Feed dog.................................................................................... 35
8.1 Adjusting the feed dog position .................................................. 35
8.1.1 Moving the feed dog................................................................... 36
8.1.2 Moving the feed dog carrier........................................................ 37
8.2 Adjusting the feed dog movement.............................................. 38
8.2.1 Adjusting the feed movement..................................................... 38
8.2.2 Adjusting the feed dog height at top dead center....................... 39
8.3 Feed dog lift (default).................................................................. 40
8.3.1 Adjusting the stroke movement .................................................. 40
8.3.2 Adjusting the compensating weight............................................ 41
8.4 Feed dog lift (adjustable stroke eccentric).................................. 42
8.4.1 Adjusting the stroke movement .................................................. 42
8.4.2 Adjusting the stroke eccentric..................................................... 43
9 Aligning the needle bar linkage............................................... 45

DURKOPP ADLER 867 Specifications

General

Stitch Type	Lockstitch
Max Stitch Length	12 mm
Needle System	134-35
Needle Thread Tension	Adjustable
Lubrication	Automatic
Type	Industrial Sewing Machine
Max Sewing Speed	3000 stitches per minute
Presser Foot Lift	20 mm
Power Requirements	230V/50Hz