Durkopp Adler 975 Handleiding
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Pagina 1/57

Contents Page:
Part 3: Service Instructions Cl. 975 - 1 - 5
1. General ................................................. 3
2. Machine Head ............................................. 4
2.1 LoopingStroke............................................. 4
2.2 Needle Bar Height and Clearance of the Hook Point to the Needle . . . . . . . . . . . . . . . . 5
2.3 NeedlePlate .............................................. 6
2.3.1 Lateral Position of the Needle Plate Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.2 Upper and Lower Position of the Needle Plate Carrier . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.3 Timing of the Switch Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.4 Speed of “ Needle Plate Up and Down ” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 BobbinCaseOpener.......................................... 10
2.4.1 Height of the Finger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4.2 Size of the Opening Gap ( Position of the Finger Run ) and Finger Depth . . . . . . . . . . . . 11
2.4.3 TimingtheOpening .......................................... 12
2.5 PressureFoot ............................................. 13
2.5.1 Pressure Foot Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5.2 Height Adjustment Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5.3 Timing of the Pressure Foot Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6 Thread Controller Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Thread Tension Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 Lubrication ............................................... 18
2.8.1 Regulating the Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.9 SewingArm............................................... 21
2.9.1 Position of the Sewing Arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.9.2 End Position Dampening of the Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.9.3 Timing of the Operation of the Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.10 Adjustment Screws for the Timing Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3. Thread Trimmer ............................................ 25
3.1 FunctionSequence .......................................... 25
3.2 Position of the Base Plate and the Guide Curve . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3 Clearance between the Drive Segment and Guide Curve . . . . . . . . . . . . . . . . . . . . . 27
3.4 Counter Knife and Thread Pull Knife . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.5 Counter Knife Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4. Clamping Table ............................................ 30
4.1 LargeGuideCurve........................................... 30
4.1.1 Attaching the Aluminium Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2 Changing the Stitch Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
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Contents Page:
4.3 SmallGuideCurves ......................................... 33
4.3.1 Function of the Guide Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3.2 Position the Guide Curves on the Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.3 Position of the Aluminium Strips on the Guide Curve . . . . . . . . . . . . . . . . . . . . . . . 35
4.4 SwitchingDisks............................................ 36
4.4.1 Function of the Switching Disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.4.2 Position of the Switching Disks on the Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.5 Position of the Clamping Tablees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.6 FixedClamp.............................................. 39
4.7 SwingClamps............................................. 41
4.7.1 Renewing the Coatings on the Swing Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.8 InteriorSlides ............................................. 44
4.8.1 Setting the Interior Slides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.9 SideSlides .............................................. 47
4.10 Outer Forward Slide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.11 Center Forward Slide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.12 InnerForwardSlide.......................................... 50
4.13 Hold-down............................................... 52
5. Causes of Unequal Edge Intervals ................................ 53
6. Synchronizer ............................................. 55
7. Pneumatics .............................................. 56
8. Maintenance ............................................. 57

1. General
These Service Instructions for the 975 - 1 - 5 describe the settings for
the sewing unit.
ATTENTION
The tasks described in the Service Instructions may only be carried
out by specialists or appropriately trained personnel !
Caution Risk of Injury
During repair, conversion and maintenance work turn the main switch
off.
Adjustment work and function testing with the machine running may
only be conducted with greatest caution under strictest observence of
all safety measures.
3
Product specificaties
Merk: | Durkopp Adler |
Categorie: | Naaimachine |
Model: | 975 |
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