Table of Contents
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Table of Contents
1
1.1
1.2
1.3
1.4
2
2.1
2.2
3
3.1
3.2
3.3
3.4
3.4.1 Tilting the machine head ............................................................ 18
3.4.2 Disassembling and assembling the arm cover ........................... 19
3.4.4 Disassembling and assembling the head cover ......................... 21
3.4.5 Disassembling and assembling the motor cover ........................ 22
3.4.6 Disassembling and assembling the toothed belt cover............... 23
3.4.7 Disassembling and assembling the thread tension plate............ 26
3.4.8 Opening and closing the throat plate slide ................................. 28
3.5
3.6
3.7
3.8
3.9
4
5
5.1
5.2
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
8
8.1
8.2
8.3
8.4
Service Instructions D867 e-con - 00.0 - 08/2023
About these instructions ........................................................... 5
For whom are these instructions intended?.................................. 5
Representation conventions - symbols and characters ............... 5
Other documents .......................................................................... 7
Liability.......................................................................................... 8
Safety ........................................................................................... 9
Basic safety instructions ............................................................... 9
Signal words and symbols used in warnings .............................. 10
Working basis ........................................................................... 13
Order of the adjustments ............................................................ 13
Laying the cables........................................................................ 13
Calling up the service routine ..................................................... 14
Disassembling and assembling the covers................................. 17
Disassembling and assembling the throat plate ......................... 29
Disassembling and assembling the feed dog ............................. 30
Flats on shafts ............................................................................ 31
Locking the machine in place ..................................................... 32
Adjusting the handwheel into position ........................................ 33
Positioning the arm shaft crank on the arm shaft ................. 35
Performing the basic settings of the eccentrics.................... 36
movement of the eccentrics........................................................ 36
Adjusting the compensating weight ............................................ 40
Adjusting the mechanical stitch adjustment ......................... 41
Presetting the stitch regulator gear mechanically ....................... 41
Adjusting the forward and backward stitch ................................. 43
Adjusting feed dog and needle bar linkage ........................... 44
Adjusting the lateral feed dog position........................................ 45
Moving the feed dog carrier sideways ........................................ 46
Aligning the needle bar linkage sideways................................... 47
Aligning the needle bar linkage in the sewing direction .............. 49
Aligning the feed dog in sewing direction ................................... 50
Adjusting the feed dog height at top dead center ....................... 51
Position of the hook and needle ............................................. 52
Adjusting the hook side clearance .............................................. 53
Adjusting the looping stroke position .......................................... 54
Adjusting the needle bar height .................................................. 57
Adjusting the needle guard ......................................................... 58
1
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