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Placing the toothed belt at the bottom

16 Service Instructions 171/173 - 00.0 - 01/2020

5 Placing the toothed belt at the bottom

Fig. 3: Placing the toothed belt at the bottom

To place the toothed belt at the bottom:

1. Place the toothed belt.

Make sure both screws in slot C assume the position shown above

and can be accessed with a screw driver ( p. 13).

CAUTION

Risk of injury from moving parts!

Crushing possible.

Switch off the machine before you adjust the

adjusting disk.

Default Chapter3
- Table of Contents3
1 About These Instructions5
- For Whom Are These Instructions Intended5
- Representation Conventions - Symbols and Characters5
- Other Documents6
- Liability7
2 Safety9
- Basic Safety Instructions9
- Signal Words and Symbols Used in Warnings10
3 Working Basis13
- Order of the Adjustments13
- Laying the Cables13
- Gage Set and Handwheel Positions14
- Gage Set14
- Handwheel Positions15
4 Adjusting the Adjusting Disk Relative to the Arm Shaft Crank17
5 Placing the Toothed Belt at the Bottom18
6 Position of Needle and Hook19
- Adjusting the Rocker Bolt for the Hook Drive and the Lower Shaft Bearing on the Left19
- Adjusting the Hook Drive Housing21
- Adjusting the Needle Evasive Movement (Ellipsis Width)22
- Adjusting the Symmetry of the Hook25
- Adjusting the Hook in the Hook Carrier26
- Adjusting Looping Stroke and Needle Bar Height27
- Adjusting the Needle Guard29
7 Feed Dog30
- Adjusting the Thrust Movement of the Feed Dog30
- Adjusting the Stroke Movement of the Feed Dog32
- Adjusting the Retention Spring on the Hook33
- Adjusting the Thread Take-Up Disk34
8 Adjusting the Thread Trimmer36
9 Adjusting the Sewing Foot Stroke42
- Adjusting the Sewing Foot Stroke for Presser Feet42
- Adjusting the Sewing Foot Stroke for Hinged Lever Feet45
10 Stitch Lengths47
- Adjusting Normal Stitch Lengths47
- Adjusting Stitch Condensing for the Bottom Feed48
- Adjusting Stitch Condensing for the Puller49
11 Puller50
- Adjusting the Synchronization of Bottom Feed and Puller50
- Adjusting the Distance between Carrier Roller and Needle51
- Adjusting the Lift Stroke of the Carrier Roller52
- Adjusting the Carrier Roller Pressure53
- Fabric Deflector54
- Toothed Belt Tension54
- Changing the Carrier Roller55
12 Edge Pinker56
- Disassembling the Edge Pinker56
- Changing the Knives57
- Adjusting the Cutting Pressure61
- Adjusting Point in Time for Cutting62
- Checking the Seam Pattern64
- Adjusting the Chain Cutter65
13 Programming67
- Adjusting the Electropneumatic Switching of the Carrier Roller71
- Adjusting the Stitch Count before the Carrier Roller Is Lowered71
- Adjusting Subclass 550-121 for Machines with an Edge Pinker72
14 Maintenance73
- Cleaning74
- Lubricating75
- Checking the Lubrication of the Machine Head76
- Checking the Hook Lubrication76
- Servicing the Pneumatic System77
- Adjusting the Operating Pressure77
- Draining the Water-Oil Mixture78
- Cleaning the Filter Element79
- Parts List80
15 Decommissioning81
16 Disposal83
17 Troubleshooting85
- Customer Service85
- Errors in Sewing Process85
18 Technical Data87
- Data and Characteristic Values88
- Requirements for Fault-Free Operation88
19 Appendix89

Brand	DURKOPP ADLER
Model	171
Category	Sewing Machine
Language	English

DURKOPP ADLER 171 Service Instructions

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