Duerkopp Adler 888 Operating Instruction

888

Spezialnähmaschine

Betriebsanleitung

Instruction manual

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 521 / 9 25-00 • Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com

Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.:

02/2009 Rev. index: 03.0 Printed in Federal Republic of Germany 0791 888740

Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten.

Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, even in extracts, without prior written permission of Dürkopp Adler AG, is prohibited.

Dürkopp Adler AG - 2009

Foreword

This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations.

The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.

The instruction manual is intended to complement existing national accident prevention and environment protection regulations.

The instruction manual must always be available at the machine/sewing unit.

The instruction manual must be read and applied by any person that is authorized to work on the machine/sewing unit. This means:

– Operation, including equipping, troubleshooting during the work

cycle, removing of fabric waste,

– Service (maintenance, inspection, repair) and/or

– Transport.

The user also has to assure that only authorized personnel work on the machine.

The user is obliged to check the machine at least once per shift for apparent damages and to immediatly report any changes (including the performance in service), which impair the safety.

The user company must ensure that the machine is only operated in perfect working order.

Never remove or disable any safety devices.

If safety devices need to be removed for equipping, repairing or maintaining, the safety devices must be remounted directly after completion of the maintenance and repair work.

Unauthorized modification of the machine rules out liability of the manufacturer for damage resulting from this.

Observe all safety and danger recommendations on the machine/unit! The yellow-and-black striped surfaces designate permanend danger areas, eg danger of squashing, cutting, shearing or collision.

Besides the recommendations in this instruction manual also observe the general safety and accident prevention regulations!

General safety instructions

The non-observance of the following safety instructions can cause bodily injuries or damages to the machine.

1. The machine must only be commissioned in full knowledge of the

2. Before putting into service also read the safety rules and

3. The machine must be used only for the purpose intended. Use of

4. When gauge parts are exchanged (e.g. needle, presser foot, needle

5. Daily servicing work must be carried out only by appropriately

instruction book and operated by persons with appropriate training.

instructions of the motor supplier.

the machine without the safety devices is not permitted. Observe all the relevant safety regulations.

plate, feed dog and bobbin) when threading, when the workplace is left, and during service work, the machine must be disconnected from the mains by switching off the master switch or disconnecting the mains plug.

trained persons.

6. Repairs, conversion and special maintenance work must only be carried out by technicians or persons with appropriate training.

7. For service or repair work on pneumatic systems, disconnect the machine from the compressed air supply system (max. 7-10 bar). Before disconnecting, reduce the pressure of the maintenance unit. Exceptions to this are only adjustments and functions checks made by appropriately trained technicians.

8. Work on the electrical equipment must be carried out only by electricians or appropriately trained persons.

9. Work on parts and systems under electric current is not permitted, except as specified in regulations DIN VDE 0105.

10. Conversion or changes to the machine must be authorized by us

and made only in adherence to all safety regulations.

11. For repairs, only replacement parts approved by us must be used.

12. Commissioning of the sewing head is prohibited until such time as

the entire sewing unit is found to comply with EC directives.

13. The line cord should be equipped with a country-specific mains

plug. This work must be carried out by appropriately trained technicians (see paragraph 8).

It is absolutely necessary to respect the safety

instructions marked by these signs.

Danger of bodily injuries !

Please note also the general safety instructions.

Table of contents page:

Introduction and safety instructions

Part 1: Operating Instructions Class 888

(Edition 02/2009)

1. Product description ........................................... 5

2. Designated use .............................................. 5

3. Subclasses and sewing equipment

3.1 Subclasses.................................................. 6

3.2 Sewing equipment.............................................. 7

4. Optional equipment ............................................ 9

5. Technical data

5.1 Technicaldataclass ............................................ 10

5.2 Technicaldatasubclasses......................................... 10

6. Operation

6.1 Threading the needle thread ....................................... 12

6.2 Winding the hook thread .......................................... 13

6.3 Bobbin insertion and threading the hook thread ........................... 13

6.4 Adjustingthethreadtension........................................ 14

6.4.1 Adjusting the hook thread tension .................................... 14

6.4.2 Adjusting the needle thread tension ................................... 16

6.5 Switching on/off the thread tensioners ................................. 18

6.5.1 Function of the thread main tension and the thread supplementary tension in relation

tothesewingfootlifting .......................................... 19

6.6 Adjusting the thread regulator....................................... 20

6.7 Changing the needle with single-needle machines with the hook on the right .......... 21

6.8 Changing the needle with single-needle machines with the hook on the left

(machinewithlowerthreadtrimmer)................................... 22

6.9 Changing the needle with double-needle machines ......................... 23

6.10 Liftingandfoldingtherollerpresser................................... 24

6.11 Sewing-footpressure............................................ 25

6.11.1 Setting through the setting wheel ..................................... 25

6.11.2 Constant sewing-foot pressure through the cylinder ......................... 26

6.12 Sewing backward (feeding backward; backtacking).......................... 26

6.13 Setting the stitch length .......................................... 27

6.14 Switching on the safety clutch at the hook blocking .......................... 28

6.15 Starting the manually controlled machine with the clutch motor .................. 29

6.16 Operating the machine equipped with the positioning motor .................... 29

6.16.1 Using the pedal ............................................... 30

6.16.2 Using the key ................................................. 31

Contents page:

6.17 Material edge trimmer c ontrol ....................................... 33

6.17.1 Switching on/off edge trimmer ...................................... 33

6.17.2 Switchingon/offmaterialguide...................................... 34

6.17.3 Materialguideadjustment......................................... 35

7. Positioning drive Efka DC1550/DA321G ............................... 35

8. Sewing w ith machine equipped with positioning motor

8.1 Machineautomaticfunction........................................ 37

8.2 Example of machine operation at sewing ............................... 38

9. Maintenance

9.1 Cleaning and checking .......................................... 38

9.2 Lubrication .................................................. 42

1. Product description

The Dürkopp Adler 888 is a special sewing machine for universal use.

It is a double lockstitch post bed sewing machine .

•

It has a two step feed. A lower wheel feeder and a driven roller

•

presser feed in two steps, a needle feed feeds in the first step only. In single needle machines, the first step represents 50% of the total stitch length; in double needle machines it represents 30%.

Depending on subclass, the machine is either single needle or

•

double needle unit with automatic functions such as thread trimming, automatic backtacking, automatic foot lifting, or without them.

The single needle machine can be equipped with edge trimming

•

with a hook post to the left of the needle.

The machine is equipped with a large two part vertical hook.

•

Maximum foot lift is 12 mm.

•

The residual thread length after thread trimming is about 15 mm.

•

The hook is protected with a s afety clutch against the

•

disarrangement of the adjusted position at the blocking of the thread which interfered with its way.

The throat plate has replaceable inserts with the stitch hole

•

dimension difference, which are optional in dependence on the needle number.

2. Designated use

The machine has automatic wick lubrication from the central oil tank

•

with a visual check of the oil level by oil level indicator in the machine arm. The part of the oil with which the hook is lubricated is devaluated. The other part of the lubrication oil is returned to the central tank by a pump.

Integrated bobbin winder.

•

The class 888 is designated for sewing shoe, leather, and upholstery sewing. In general, the material sewn is leather (natural or artificial). It is possible to use it for shoe fabrics too.

The equipment for light, medium or heavy sewing is mounted on the machine as an option.

The subclass with material trimming is designated especially for the shoe lining trimming if the lining has the corresponding strength. The cutting mechanism allows the lining trimming under the leather surface layer. It is possible to trim also all sewn layers.

It is possible to sew dry material only which may not be thicker than 7 mm when pressed down with a roller presser. The material may not contain hard objects, as the machine is not equipped with an eye guard. This machine may be operated in dry rooms and by a trained person only w ho is aware of the risks described in this instruction.

This special sewing machine may be set up and operated only in dry, well-maintained premises. If the sewing machine is used in premises which are not dry and well-maintained it may be necessary to take further precautions (which should be agreed in advance - see EN 60204-31:1999).

As manufacturers of industrial sewing machines we proceed on the assumption that personnel who work on our products will have received training at least sufficient to acquaint them with all normal operations and with any hazards which these may involve.

3. Subclasses and sewing equipment

3.1 Subclasses

Class and Needle Stitch Material Machine Hook Trimming

subclasses number length trimming control and

of the needle

1 needle, hook to the

right

2 needles

1 needle, hook to the left

of the needle

upto5mm

upto7mm

without trimming

lower trimming to the

right of the needle

manual

automatic foot lifting

and electric backtacking

automatic foot lifting and

pneumatic backtacking

big, two parts

standard

backtacking

without trimming,

manual backtacking

with trimming,

automatic backtacking

0888 160020 X X X X X X

0888 160122 X X X X X X

0888 160152 X X X X X X

0888 160522 X X X X X X

0888 260020 X X X X X X

0888 260122 X X X X X X

0888 260522 X X X X X X

0888 356020 X X X X X X

0888 356122 X X X X X X

0888 356152 X X X X X X

3.2 Sewing equipment

Needle number

Sewing equipment

888-E1

888-E2 medium 90-110 90 50-30 40 5 2500 2500 - -

888-E3 heavy

888-E4/0,8

888-E5/1,0 medium 90-110 90 50-30 40 5 2500 2500 - 1,0

888-E6/1,2

888-E7/1,5 - 1,5

888-E8/1,2

888-E9/1,6 1,6 -

888-E10/2,0 2,0 -

888-E11/1,6

For classes and subclasses

0888 160020

0888 160122

0888 356020

0888 356122

Number of needles

0888 160522

Sewing category

light 70-80 70 80-60 60 4 3000 2500

heavy 120-160 120 25-10 20 5 2000 1600

light 70-80 70 80-60 60 4 3000 2500

Scope

Standard

0,01mm0,01mm- - mm 1/min 1/min mm mm mm mm dB

***

120-160 120 25-10 20 7 2000 1600 1,2 - -

thread label

Scope Polyester

number

Standard

Maximum stitch length

Sewing speed

Maximum

Standard *

Top roller diameter

0,6

25 0,6

0,6

Wheel feed tooth pitch

Seam distance

- 0,8

- 1,2

1,2 -

1,6 -

Trimming distance from the

needle

Noise **

(A)

888-E12/2,0 4 2,0 -

888-E13/2,4 5 2,4 -

888-E14/2,0

888-E15/2,4 5 2,4 -

888-E16/3,2 5 3,2 -

888-E17

888-E19 25

888-E22 25 - -

0888 260020

0888 260122

0888 160020

0888 160122

medium 90-110 90 50-30 40

0888 260522

heavy 120-160 120 25-10 20

medium 90-110 90 50-30 40 5 2500 2500

0888 160522

2500 2000

2000 1600 1,2

2,0 -

25 1,2 - -

0,6

* When sewing very thick layers, it is necessary to reduce the sewing speed significantly; at the parallel sewing

and trimming too.

** Acoustic pressure level of a separate machine in the workplace.

Measured at the maximum stitch length and maximum sewing speed in compliance with DIN 45635-48-A-1-KL2.

*** A pneumatically controlled machine 0888 160522 can have a needle No. 200.

Needle number

Polyester

thread label

number

Sewing speed

Sewing equipment

888-E18/1,6

888-E20/2,0

888-E21/2,4

888-E30/1,6

888-E23

888-E24 medium 90-110 90 50-30 40 5 2500 2500 - -

888-E25 heavy

888-E26/0,8

888-E27/1,0 medium 90-100 90 50-30 40 5 2500 - 1,0

888-E28/1,2 heavy

888-E29/1,5 - 1,5

For classes and subclasses

0888 260020

0888 260122

0888 260522

0888 1601520888 356152

Number of needles

Sewing category

medium

light 70-80 70 80-60 60 4 3000 2500

light 70-80 70 80-60 60 4 2000

Scope

Standard

0,01mm0,01

90-110 90

120-160 120 5 35 2,0 -

120-160 120 5 35 2,4 -

90-110 90 4 35 1,6 -

120-160 120 25-10 20 7 2000 1600 1,2 - -

120-160 120 25-10 20 5 2000 - 1,2

Scope

- - mm min

50-30 40

Standard

Maximum stitch length

Maximum

Standard *

-1

min

2500 2500

1600

Top roller diameter

-1

mm mm mm mm dB

25 0,6

Wheel feed tooth pitch

1,6 -

1,2

0,6

Seam distance

Trimming distance from the needle

- 0,8

* When sewing very thick layers, it is necessary to reduce the sewing speed significantly; at the parallel sewing

and trimming too.

** Acoustic pressure level of a separate machine in the workplace.

Measured at the maximum stitch length and maximum sewing speed in compliance with DIN 45635-48-A-1-KL2.

Noise **

(A)

4. Optional equipment

Order number Optional equipment

0888 220334 Roller presser Æ 25 mm knurled

0888 220344 Roller presser Æ 25 mm smooth

0888 220354 Roller presser Æ 25 mm rubberized

0888 220364 Roller presser Æ 35 mm knurled (basic)

0888 220374 Roller presser Æ 35 mm smooth

0888 220384 Roller presser Æ 35 mm rubberized

0888 220394 Roller presser Æ 45 mm, width 3.8 mm

0888 220404 Roller presser Æ 45 mm, width 2.0 mm

9880 888100 Diode lamp

MG55 400334 Stand set MG55-3 for the machine driven with a V-belt

(contains a frame, pedal, drawer and a table top 1060 x 500 mm)

MG55 400324 Stand set MG55-3 for the machine driven with a toothed belt

(contains a frame, pedal, drawer and a table top 1060 x 50 mm)

0700 088802 Stand top plate for the V-belt

0700 088804 Stand top plate for the toothed belt

N800 080030 Edge-guide, swivelling

N800 080004 Roller stop

9805 791113 USB memory key for data transmission to Efka DA321G drive control

0867 490010 Efka V810 or V820 control panel bracket

0688 130384 Knee lever for mechanical foot lifting

9780 000108 WE-8 maintenance unit for pneumatic optional equipments

0797 003031 Pneumatic connection package

9880 888101 Sewing lamp LED

5. Technical data

5.1 Technical data class

Type of stitch Lockstitch 301

Needle system 134LR, 134 KKLR, 134, 134 D

Foot lifting with a hand lever 6 mm

Foot lifting with a k nee lever or automatically 12 mm

Thread length after trimming max. 15 mm

Machine head clearance height 300 mm

Machine head clearance width 280 mm

Machine base plate plan dimensions 178 x 518 mm

Table top plan dimensions 1060 x 500 mm

Table top minimum height 740 mm

Table top maximum height 900 mm

Machine height max. 1630 mm

Maximum input (short-time) 0,8 kW

Operating pressure 6 bar

5.2 Technical data subclasses

Class and

subclasses

Number of needles

Post height

Post length in the sewing

direction

mm mm mm mm 1/min mm kg kg kg kg kg

Post length perpendicular to

the sewing direction

Trimmed material maximum

thickness

Trimming knife oscillation

frequency

Trimming knife

maximum lift

Machine head weight

Stand weight

FIR motor weight

Efka DC1600 motor weight

Efka DC1550 motor weight

0888-160020

19 - -

0888-160122 59 60 - - 10

---

0888-160152 57 60 - - 10

0888-160522 59 57 - - 10

0888-356020 52,5

1 170 52

56 19 - -

0888-356122 52,5 61 - - 10

2,5 3000 2,4

0888-356152 50,5 61 - - 10

0888-260020

0888-260122 62 - - 10

2 170 52 102 - - -

57 19 - -

0888-260522 59 - - 10

More detail about the technical data are given in the chapter 3.2.

6. Operation

6.1 Threading the needle thread

321321

Caution! Risk of injury!

Turn off the main switch. The needle thread may only be threaded with the sewing machine switched off.

–

Thread the single needle machine according to fig. (A). If the machine is equipped for heavy sewing, wind the thread around the pin (1).

–

Thread the double needle machine according to fig. (B). The thread (2) designed for the left needle is to be threaded in the left tensioners and in the upper hole in the thread lever (4).

–

Thread the needles arranged side by side according to fig. (B).

–

Thread the diagonally arranged needles according to fig. (C-right needle) and fig. (D-left needle).

–

Thread the machine with an edge trimming mechanism according to the fig. (E).

–

If the machine is equipped for heavy sewing, wind the threads around the pin (5).

+ 30 hidden pages

Duerkopp Adler 888 Operating Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual