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667

Special Sewing Machine

Instruction manual

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld

Tel: +49 (0) 521 / 9 25-00 • Fax: +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com

Ausgabe / Edition:

12/2011

Änderungsindex

Rev. index: 00.0 Printed in Federal Republic of Germany

Teile-Nr./Part.-No.:

0791 667741

Property of Dürkopp Adler and copyright protected. Any use of this content, or part thereof, is subject to prior writ-

ten approval by Dürkopp Adler.

Contents Page

Preface and General Safety Instructions

Part 1: Operating Instructions Class 667 – Original Operating Instructions

(Edition 12/2011)

1 General safety............................................................................................................................................. 1

2 Product description.................................................................................................................................... 3

2.1 Product description ..................................................................................................................................... 3

2.2 Proper Use, Designated use ........................................................................................................................ 3

2.3 Specifications .............................................................................................................................................. 3

2.4 Optional equipment ..................................................................................................................................... 5

3 Operation..................................................................................................................................................... 7

3.1 Threading the needle thread ....................................................................................................................... 7

3.2 Adjusting the needle-thread tension ........................................................................................................... 8

3.2.1 Function of the main thread tension and the supplementary thread tension in relation to the sewing foot

lift for subclass 667-180312 and 667-180322 ............................................................................................. 9

3.2.2 Function of supplementary thread tension in relation to the sewing foot lift and the Speedomat for

subclass 667-180312 and 667-180332........................................................................................................ 10

3.3 Opening the thread tension ......................................................................................................................... 11

3.4 Turning the supplementary thread tension on and off for subclasses 667-180312 and 667-180332 ........ 11

3.5 Adjusting the thread regulator ..................................................................................................................... 12

3.6 Winding on the hook thread ........................................................................................................................ 13

3.7 Changing the hook-thread bobbin .............................................................................................................. 14

3.8 Setting the hook thread tension .................................................................................................................. 15

3.9 Changing the needle ................................................................................................................................... 16

3.10 Lifting the sewing foot ................................................................................................................................. 17

3.11 Locking the sewing feet in an elevated position ......................................................................................... 18

3.12 Sewing foot pressure ................................................................................................................................... 18

3.13 Sewing-foot stroke ...................................................................................................................................... 19

3.14 Adjusting the stitch length ........................................................................................................................... 21

3.15 Key pad on the machine arm ...................................................................................................................... 22

3.16 Sewing with machines using the Efka DC1550/DA321G positioning drive ................................................ 24

4 Maintenance................................................................................................................................................ 27

4.1 Cleaning and inspection .............................................................................................................................. 27

4.2 Oil lubrication ............................................................................................................................................... 29

1 General safety

This instruction manual is intended to help familiarize the user with the

machine and to enable correct utilisation.

The instruction manual contains important information on how to operate the

machine safely, correctly and economically. Observation of the instructions

eliminates danger, reduces costs for repair and downtime, and increases the

reliability and service life of the machine.

The instruction manual is intended to complement existing national accident

prevention and environment protection regulations.

The instruction manual should always be available where the machine/sewing

unit is being used.

The instruction manual must be read and applied by any person authorised

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 must ensure that only authorised persons work with the machine.

The user is required to check the machine at least once per shift for visible

damage and defects, and to report any changes which impair safety

immediately (including operating performance).

The company using the machine must ensure it is only operated in perfect

working order.

As a matter of principle, no safety equipment is to be removed or disabled.

If it is necessary to remove any safety equipment for preparation, repair, or

maintenance work, the safety equipment must be reinstalled immediately

upon completion of said work.

The manufacturer does not assume any liability for damages resulting from

unauthorized modification of the machine.

Observe all of the safety signs and hazard warnings on the machine/unit! The

yellow-and-black striped sections designate permanent hazard areas which

are associated with, for example, risk of crushing, cutting, shearing or

collision.

In addition to the information contained in this instruction manual you should

also observe the applicable general safety and accident prevention

regulations.

General safety precautions

Non-observance of the following safety precautions can result in bodily

injury or damage to the machine.

1. The machine should only be commissioned after reading the associated

operating manual and it should only be operated by persons who have

received the corresponding training.

2. Before starting to use the machine you should also read the safety

precautions specified by the motor manufacturer.

3. The machine should only be used for the purpose intended and with the

safety devices in place. Observe all of the applicable safety regulations.

4. The machine must be disconnected from the power supply by switching

off the master switch or disconnecting the mains plug when exchanging

sewing appliances (such as the needle, sewing foot, needle plate, feed

dog and bobbin), when threading, when leaving the workplace

unattended or when conducting service work.

5. Daily servicing procedures should only be conducted by appropriately

trained persons.

6. Repairs and special maintenance work should only be conducted by

specialist personnel or by persons who have received the corresponding

training.

7. When conducting service or repair work on pneumatic systems the

machine must be disconnected from the compressed air supply (max. 7

- 10 bar). Before disconnecting the machine the maintenance unit is to be

depressurised. An exception to this rule is only permitted for adjustments

and functional checks which are conducted by appropriately trained,

specialist personnel.

8. Work on the electrical equipment should only be conducted by

electricians or appropriately trained personnel.

9. Working on live parts and equipment is not permitted, except as specified

in regulations DIN VDE 0105.

10. Conversions or modifications made to the machine should only be

conducted in compliance with all of the applicable safety regulations.

11. Only those replacement parts approved by us are to be used for repairs.

12. Commissioning of the upper part is prohibited until such time as the entire

sewing unit complies with the provisions of the EC directives.

13. The connecting cable must be equipped with a country-specific mains

plug. The associated work must be conducted by an appropriately trained

specialist (also refer to point 8).

These symbols designate safety

precautions which must be observed at all

times.

Risk of injury!

Please also observe the general safety

precautions.

2 Product description

2.1 Product description

The Dürkopp Adler 667 is a special sewing machine for first-class single-

needle decorative seams in light to medium-heavy material.



It is a single-needle flatbed double-backstitch machine with lower

conveyor, needle transport and alternating upper foot conveyor.



A safety coupling prevents the shuttle from being displaced or damaged

if the thread jams in the shuttle track.



Large horizontal shuttle or oversized shuttle.



Automatic wick lubrication with viewing windows for the oil level.



Integrated bobbin winder.

2.2 Proper Use, Designated use

The 667 is a sewing machine designed for sewing light to medium-heavy

material. Such material generally consists of textile fibres, but can also

include leather. It is used in the clothing industry and for domestic and vehicle

upholstery.

This special sewing machine can also be used to produce so-called technical

eams. In this case, however, the operator must assess the possible dangers

which may arise (with which DÜRKOPP ADLER AG would be happy to

assist), since such applications are, on the one hand, relatively unusual and,

on the other, so varied that no single set of criteria can cover them all. The

outcome of this assessment may require appropriate safety measures to be

implemented.

Generally-speaking only dry material should be sewn with this machine. The

terial should be no thicker than 10 mm when compressed by the lowered

sewing feet. The material should not contain any hard objects; if it does, the

machine should only be operated with eye protection. No such eye protection

can currently be provided.

The seam is generally produced with textile-fibre sewing thread of gauge up

15/3 NeB (cotton), 15/3 Nm (synthetic) or 15/4 Nm (covering yarn). Before

using any other thread the possible dangers arising must be assessed and

appropriate safety measures implemented if necessary.

This special sewing machine should only b

e set up and operated 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 implement further precautions (which should be

reed in advance - see EN 60204-31:1999).

As manufacturers of industrial sewing machines, we proceed on the

assumption that personnel who

work with our products will have received

training that is at least sufficient to acquaint them with all of the normal

operations and with any hazards that these may involve.

2.3 Specifications

Noise: Workplace-related emission value in accordance with DIN EN ISO 10821

667 LC = _dB (A)

Stitch length: _ mm, Sewing foot strok

e: ___ mm, Stitch rate: ____ rpm

2.3.1 Technical data for subclasses

Subclasses

667-180010

667-180030

667-180112

667-180132

667-180312

667-180332

Type of stitch Backstitch 301

Looper type horizontal, XL large, bobbin Ø 26 mm X X X

Looper type horizontal, XL oversized, bobbin Ø 32 mm X X X

Electromagnetic thread trimmer X X X X

Electropneumatic seam bartacking and sewing foot lift X X X X

Switchable thread tension XX

2 stitch lengths, can be switched electropneumatically X X

2 stroke heights with knee switch, can be switched elec-

tropneumatically

Integrated sewing light XX

Number of needles 1

Needle system 134-35

Max. needle size [Nm] (depending on sewing mechanism) 80-

150

100-

170

80-

150

100-

170

80-

150

100-

170

Max. thread thickness [Nm] 80/3-

15/3

80/3-

10/3

80/3-

15/3

80/3-

10/3

80/3-

15/3

80/3-

10/3

Looper thickness [Nm] 100/

3-20/

100/

3-15/

100/

3-20/

100/

3-15/

100/

3-20/

100/

3-15/

Stitch length forwards/backwards [mm] 9 / 9

Max. stitch rate [rpm] 3000

Speed at factory setting [rpm] 3000

Max. sewing-foot stroke: [mm] 9

Max. height of lifted sewing feet [mm] 20

Operating pressure [bar] 6 6 6 6

Air consumption [NL] 0.7 0.7 0.7 0.7

Dimensions [mm] length / width / height (with attached

Efka DC 1550)

630/ 255/ 420(630/ 290/ 420)

Weight [kg](with attached Efka DC 1550) 50(54)

Rated voltage [V/Hz] depending on motor package

Rated voltage at factory setting [V/Hz] depending on motor package

Power rating [kVA] depending on motor package

2.4 Optional equipment

For the sewing machine 667 the following optional equipment is available:

2.5 Stands

Order no. Optional equipment Subclasses

667-180010

667-180030

667-180112

667-180132

667-180312

667-180332

9780 000108 WE-8 maintenance unit for optional pneumatic equipment XXXXXX

0797 003031 Pneumatic connection pack. For connecting stands to the main-

tenance unit

XXXXXX

0867 490010 Control panel angle X X

ooo

9822 510003 Halogen sewing light for sewing machine head XXXXXX

9880 867100 Sewing light mounting kit XXXXXX

0798 500088 Sewing light transformer XXXXXX

9880 867103 Diode sewing light (one diode) XXXXXX

9880 867102 Integrated sewing light XXXXoo

9850 001089 Power supply unit for integrated and diode sewing light XXXXoo

9850 867001 PCB for oil monitoring X X o o

0867 590014 Electropneumatic needle cooler, from above XXXX

0687 590984 Mounting kit FK, thread clamp with thread wiper function XXXX

0367 595124 Mechanical sewing foot lift with pedal X X

0687 590364 Pneumatic sewing foot lift (DC 1550) X X

0687 590464 Manual seam tacking o o X X o o

N800 080001Right edge guide, with roller, can be raised XXXXXX

N800 080004 Combined roller and straight guide, right, can be raised, height-

adjustable

XXXXXX

N800 080021Right edge guide, can be raised XXXXXX

N800 080022Guide, for attachment to the base plate XXXXXX

9805 791113 USB memory stick for data transfer with the Efka control unit

DA321G

XXXXXX

Order no.

Subclasses

667-180010

667-180030

667-180112

667-180132

667-180312

667-180332

MG55 400464MG55-3 stand set. Table plate: 1060 x 500 mm with pedal XXXXXX

3 Operation

3.1 Threading the needle thread

– Place the thread reel on the thread stand and guide the needle

thread through the unwinder arm.

– The unwinder arm must be in a vertical position above the thread

reels.

– Thread in the thread through threading guides 1 and 2.

– Wind the thread clockwise around the pre-tensioner 3.

– Wind the thread counter-clockwise around the supplementary ten-

sioner 4.

– Wind the thread clockwise around the main tensioner 5.

– Pull the thread underneath the thread take-up spring 6 and pass it

through the guide 10 and thread regulator 11, up to the thread lever

12.

– Insert the thread through the thread lever 12 and the threading

guides 9, 8 and 7 on the needle bar.

– Thread the thread into the needle eye.

Caution: Risk of injury!

Switch off the main switch!

The needle thread should only be threaded when the sewing machine is

switched off.

Fig. 1 Fig

. 2

3.2 Adjusting the needle-thread tension

Fig. 3 Fig. 4

Fig. a: Correct thread interlacing in the centre of the mate-

rial

Fig. b:

Needle-thread tension too strong

hook-thread tension too

weak

Fig. c:

Needle-thread tension too strong

hook-thread tension too

weak

Pre-tension

When the main tensioner 2 and supplementary tensioner 3 are open the

needle thread must be under slight residual tension. This residual tension is

produced by the pre-tensioner 1.

The pre-tensioner 1 simultaneously affects the length of the end of the

vered needle thread (the starting thread for the next seam).

Basic setting:

– T

urn adjusting knob 4 until its front is flush with bolt 5.

Shorter starting thread:

– T

urn adjusting knob 4 clockwise.

Longer starting thread:

– T

urn adjusting knob 4 counter-clockwise.

Main tension

The main tensioner 2 should be set to the minimum possible tension.

The cross-over point of the thread should be in the centre of the material.

When using thin material, excessive thread tension can cause unwanted

thering and thread breakage.

Adjust the main tensioner 2 so that an even stitch pattern is produced.

– I

ncrease tension - turn the adjusting knob clockwise.

– Decrease tension - turn the adjusting knob counter-clockwise.

Supplementary tension

The supplementary tensioner 3 can be switched in to effect a rapid change in

edle-thread tension during operation e.g. with thickened seams.

Set the supplementary tensioner 3 to be lower than the main tensioner 2.

3.2.1 Function of the main thread tension and the supplementary thread tension in rela-

tion to the sewing foot lift for subclass 667-180312 and 667-180322

Button 1 (see chapter 3.15) on the machine's keypad can be used to activate

or deactivate the supplementa

ry thread tension at any time. Parameter F-299

must be set to "1" for this.

1 = Thread tensioner mechanically opened

0 = Thread tensioner me

chanically closed



If the supplementary thread tensioner is open, the status of the sewing foot lift does not change.



If the machine is turned off, the supplementary thread tension remains at its previously set state.

Sewing foot lift in the seam Sewing foot lift afterthread

trimming

Parameter

Setting

Main

read

tensioner

Supple-

mentary

read

tensioner

Main thread

nsioner

Supplemen-

tary thread

tensioner

F-196=0

F-196=1

F-196=2

F-196=3

3.2.2 Function of supplementary thread tension in relation to the sewing foot lift and the

Speedomat for subclass 667-180312 and 667-180332

Button 1 (see chapter 3.15) on the machine's keypad can be used to activate

or deactivate the supplementary thread tension at any time. Parameter F-255

must

be set to "7" for this to work.

(*) When the max. stroke adjustment is switched on via the knee switch

and the HP-speed of parameter F-117 is reached by the "Speedomat", the

pplementary thread tension is switched on automatically.

0 = Supplementary thread tension mechanically closed

1 = Supplementary thread tension mechanically opened



If the supplementary thread tensioner is closed, it remains closed during the stroke adjustment.



If the machine is turned off, the supplementary thread tension remains at its previously set state.

Basic adjustment in the control box for automatic stepwise speed reduction

(Speedomat) by the adjusting knob for the height of the alternating feeding

stroke.

Parameter 188

Step 01-21 entire Speedomat range

Step 01-10 maximum permitted speed, parameterF-111 = 3000 rpm

Step 11-18 linear stepwise reduction of the maximum speed

(

Speedomat)

Step 19-21 maximum permitted speed, parameter F-117 = 1800 rpm

Parameter

justment

Max. stroke adjustment

via knee switch

Stroke adjusted by the

adjusting knob when

reaching the HP speed

of parameter F-117

(Speedomat)

F-197 = 0

F-197 = 1

F-197 = 2

F-197 = 3

1 (*)

3.3 Opening the thread tension

Subclasses

667-180010, 667-180030

When lifting the sewing feet with the knee switch, main and supplementary

ten

sion are automatically opened.

Subclasses

667

-180112, 667-180132, 667-180312, 667-180332

The thread tension is automatically opened when trimming the thread.

3.4 Turning the supplementary thread tension on and off for subclasses 667-180312 and

667-180332

Fig. 5

The supplementary tension can be switched on and off with lever 1.

Switching on

– Pus

h the handle 2 of lever 1 to the left.

Switching off

– Pu

sh the handle 2 of lever 1 to the right.

3.5 Adjusting the thread regulator

Fig. 6

The thread regulator 1 controls the quantity of needle thread required for

stit

ch formation. The thread regulator must be precisely adjusted for an

optimum result.

With correct setting the needle-thread loop must slide with low tension over

the t

hickest point of the hook.

– Loosen screw 2.

– Ad

just the position of thread regulator 1: thread regulator to the left

= more thread; thread regulator to the right = less thread

– Tighten screw 2.

Adjustment information:

If the maximum quantity of thread is required, the thread-tensioning spring 3

must

be pulled upwards approx. 0.5 mm from its lower limit position. This is

the case when the needle-thread loop passes the maximum hook diameter.

Caution: Risk of injury!

Switch off the main switch.

The thread regulator may only be adjusted with the sewing machine switched

off.

3.6 Winding on the hook thread

– Put the thread reel on the thread stand and lead the hook thread

through the unwinder arm.

– Pull the thread through guide 5, tensioner 3 and guide 4.

– Place the thread behind the blade 6 and sever it.

– Insert the bobbin 1 onto the bobbin winder. There is no need to

wind the thread onto the bobbin by hand.

– Press the bobbin-winder lever 2 into the bobbin.

– Start sewing. The bobbin winder lever terminates the process as

soon as the bobbin is full. The bobbin winder always stops in such

a way that the blade 6 is in position.

– Remove the full bobbin 1, place the thread behind the blade 6 and

sever it.

– Fit an empty bobbin onto the bobbin winder for the next winding

process and press the bobbin-winder lever 2 into the bobbin.

Fig. 7 Fig. 8

CAUTION: Risk of breakage!

If the thread is not to be wound on during sewing, the sewing foot must be

locked in an elevated position and the sewing-foot stroke set to the smallest

value.

3.7 Changing the hook-thread bobbin

Fig. 9

Remove the empty bobbin.

– Set the needle bar at an elevated position.

– Lift the bobbin case flap 2.

– Remove the bobbin case 3 with bobbin 6.

– Remove the empty bobbin from the bobbin case 3.

Insert a full bobbin.

– Insert a

full bobbin into the bobbin case 3.

– Observe the direction of rotation of the bobbin.

– The direction of rotation is correct when the bobbin rotates in an

opposite direction to the drawing direction of the thread.

– Pull the hook thread through the slit 5 underneath the tension

spring 4 into the hole 7.

– Pull approx. 5 cm of hook thread from the bobbin case 3.

– When pulling the thread, the bobbin should turn into the direction

indicated by the arrow.

– Reinsert the bobbin case 3.

– Close the bobbin case flap 2.

Caution: Risk of injury!

Switch off the main switch.

The hook-thread bobbin may only be changed with the machine switched

off.

CAUTION: Risk of breakage!

Press down firmly on the bobbin case and make sure it engages correctly.

3.8 Setting the hook thread tension

Fig. 10

Brake spring

The brake spring 1 is responsible for preventing a bobbin overrun when the

mach

ine stops and when the hook thread is being cut. It cannot be adjusted!

Setting the tension spring

– Adjust the tension spring 4 with the adjustment screw 3. Turn until

the required tension force is present.

Increasing the hook thread tension

– Turn screw 3 clockwise.

Decreasing the hook thread tension

– T

rn screw 3 counter-clockwise.

Caution: Risk of injury!

Switch off the main switch.

The hook-thread tension may only be adjusted with the sewing machine

switched off.

3.9 Changing the needle

– Turn the handwheel until the needle bar 1 reaches its highest posi-

tion.

– Loosen screw 2.

– Pull the needle downwards out of the needle bar 1.

– Insert the new needle into the hole of the needle bar 1 and push it

until it stops.

CAUTION!

The needle scarf 3 must be pointing towards the hook.

– Tighten screw 2.

CAUTION!

After changing to a needle with a different thickness the

clearance gap between the hook and the needle must be adjusted

(see service instructions).

Non-compliance with this information can result in the following

errors: Changing to a thinner needle:

missing stitches

thread damage

Changing to a thicker needle:

damage to the hook tip

damage to the needle

Fig. 11 Fig. 12

Caution: Risk of injury!

Switch off the main switch.

The needle may only be changed with the sewing machine switched off.

3.10 Lifting the sewing foot

Fig. 13

Subclass 667-180010, 667-180030

– Th

e sewing foot can be lifted mechanically by actuating the knee

lever 1.

Subclass 667-180112, 667-180312, 667-180312, 667-180322

– Th

e sewing foot can be lifted electropneumatically by actuating the

pedal 2.

Mechanical sewing foot lift (knee lever)

– T

o insert or remove the material (e.g. for corrective purposes), push

the knee lever to the right. The sewing feet remain in an elevated

position for as long as pressure is maintained on the knee lever 1.

Lifting the sewing foot electropneumatically (pedal)

– Depr

ess pedal 2 half-way. The sewing feet are raised when the

machine is stopped.

– Depress pedal 2 all the way. The thread trimmer will then be acti-

vated and the sewing feet will be raised.

3.11 Locking the sewing feet in an elevated position

– Swivel the lever 1 downwards. The sewing feet are locked in an

elevated position.

– Swivel the lever 1 upwards. The sewing feet are unlocked.

– Lift the sewing feet pneumatically or by using the knee lever. The

ver 1 then swivels back to its starting position.

3.12 Sewing foot pressure

The required sewing foot pressure is adjusted with rotary knob 2.

– Increase the sewing foot pressure= turn the adjusting knob 2

clo

ckwise

– Decrease the sewing foot pressure= turn the adjusting knob 2

counter-clockwise.

Fig. 14 Fig. 15

CAUTION!

The material should not "float".

Do not set a higher pressure than is necessary.

3.13 Sewing-foot stroke

Depending on the subclass, the 667 special sewing machine is equipped with

two adjusting knobs as standard for adjusting the sewing-foot stroke.

Use the left adjusting knob 2 to select the standard sewing-foot stroke

betw

een 1 and 9 mm.

Use the right adjusting knob 1 to set a higher sewing-foot stroke between 1

and 9 mm.

– T

urning adjusting knob 1 and 2 (1 to 9)

=minimum sewing-foot stroke

9 =maximum sewing-foot stroke

Automatic stitch rate limit

Machines without thread trimmer

The speed is not checked for these machines.

Please observe the information and table on the following page.

Machines with thread trimmer

The sewing-foot stroke and stitch count are interdependent. A potentiometer

is me

cha

nically connected to the adjusting knob. This potentiometer informs

the control unit what foot-stroke has been set and automatically limits the

sewing speed.

Machines with electropneumatic rapid stroke adjustment

When processing thick sections of material or when sewing over transversal

seams,

the higher sewing-foot stroke (adjusting knob 1) can be activated

while sewing by using knee switch 3 underneath the table.

As is the case for machines with thread trimmers, a potentiometer is also

used her

Fig. 16 Fig. 17

CAUTION: Risk of breakage!

The standard sewing-foot stroke set with adjusting knob 2 should not be

greater than the stroke set with adjusting knob 1.

Operating mode for rapid stroke adjustment

The activation time for the maximum sewing-foot stroke depends on which

erating mode is set. You can select between three different operating

modes.

The individual operating modes are determined by the setting of parameters

F-

138 and F-184 on the operating panel (see enclosed instructions from the

motor manufacturer).

Note!

The switch 4 on the rear of the knee switch 3 can also be used to switch

between

"toggle" and "spring return" modes.

Note!

In order to ensure an operation as safe

as possible and a high durability, the

max. speed as shown in the chart should not been exceeded.

Operating

mode

Operation / Explanation

Spring return

F-138 = 0

F-184 = 0

The maximum sewing-

foot stroke remains activate for

as long as knee switch 3 is actuated.

Toggle

F-138 = 1

The maximum sewing-f

oot stroke is activated when

knee switch 3 is actuated.

Actuating the knee switch again deactivates the maxi-

mum sewing-foot stroke.

Spring return

with

minimum

stitc

h count

F-138 = 0

F-184 0 < 100

The maximum sewing-

foot stroke remains activate for

as long as knee switch 3 is actuated.

After releasing the knee switch, the machine contin-

ues to sew at the maximum sewing-foot stroke until

the specified minimum stitch count (parameter F-184)

is reached. Afterwards, sewing continues at the

standard sewing-foot stroke.

Fig. 18

Subclass Stitch range

[

mm]

Sewing-foot stroke

Adjusting knob position

max. stitch count

[rpm]

667-180010

667-180030

667-180112

667-180132

667-180312

667-180332

0 - 6 1 - 3

6 - 9

3000

2500

2100

1800

6 - 9 1 - 4

6 - 9

2500

2100

1800

3.14 Adjusting the stitch length

Depending on the subclass, the 667 special sewing machines are equipped

with two adjusting knobs. These allow two different stitch lengths to be used

when sewing, which can be selected by using button 4 (see chapter 3.15).

The two adjusting knobs 1 and 2 on the machine arm are used to adjust the

stitc

h lengths.

– Adjust the longer stitch leng

th with the upper adjusting knob 1.

Position 1 = min. stitch length Position 9 = max. stitch length

– Adjust the shorter stitch length with the lower adjusting knob 2.

Position 1 = min. stitch length Position 9 = max. stitch length

The stitch lengths are equal for both forward and reverse sewing.

– Push the stitch regulat

or lever 3 down to manually sew bartacks.

The machine will sew backwards for as long as the stitch regulator

lever 3 is depressed.

Tip

To adjust the stitch length m

re easily, the stitch length which is not to be

adjusted should be activated by using button 2 (see chapter 3.15).

Fig. 19 Fig. 20

CAUTION: Risk of breakage!

The standard sewing-foot stroke set with adjusting knob 2 should not be

greater than the stroke set with adjusting knob 1.

3.15 Key pad on the machine arm

Button Function

1 Supplementary thread tension

Illuminated button:

Supplementary thread tension is activated.

Non-illuminated button:

Supplementary thread tension is not activated.

2 2nd stitch length

Illuminated button:

large stitch length (upper adjusting knob) is active

Non-illuminated button:

small stitch length (lower adjusting knob) is active

3 Invoke or suppress the start/final bartack.

If the start and final bartacks are activated, then the next

bartack is deactivated when the button is pressed.

If the start and final bartacks are not activated, then the

next bartack is activated when the button is pressed.

4 Move the needle to the upper or lower position.

The function of the button can be set with parameter F-

242.

1 = needle up/down

2 = needle up

3 = single stitch

4 = full stitch

5 = needle to position 2

The factory default setting is 1 (needle up/down).

5 Sew backwards manually.

The machine sews backward stitches as long as the key 1

is being pushed.

8 LED display “power on”

Fig. 21

Button 7 can be assigned a function by using the screws 6 located

und

erneath the switches.

– Selec

t a function. For example: 6 = sew backwards manually.

– Press in the screw underneath button 5 and turn 90° clockwise (the

slot is vertical).This function can now be activated by using button

5 and button 7.

3.16 Sewing with machines using the Efka DC1550/DA321G positioning drive

The DA321G control unit contains all of the required operating elements for

switching functions and setting parameters.

It is possible to operate without an operating panel, however the seam

ogramming function can no longer be used.

The V810 and V820 operating panels can also be connected to the control

nit and are available as optional equipment.

Seam programming can be conducted with the V820 operating panel.

For a more detailed description of the control unit please refer to the "Efka

DC1

550 – DA321G" operating manual (also visit www.efka.net).

With pedal

The pedal position is detected using a sampling detector with 16 different

lev

els.

Their meanings are listed in the table below:

Note

The following functions can be pre-programmed to correspond with the rest

sition of the pedal:

– Nee

dle position (down/up) and sewing-foot position (down/up)

when stopping in the seam.

– Sewing-foot position (up/down) after end of seam. (Pedal fully

backwards, then in rest position).

Fig. 22 Fig. 23

Pedal position Pedal movement Meaning

-2 Completely backwards Command for cutting the thread (end of seam)

-1 Halfway back Command for lifting the sewing foot

0 Rest position, inoperative

position

Refer to the note below

1 Slightly forwards Command for lowering the sewing foot

2 Further forwards Sew with minimum speed (1st level)

3 Further forwards Sew - 2nd speed level

: : :

13 All the way forwards Sew with maximum speed (12th speed level)

-1

-2

Fig. 24 Fig. 25

Sewing operation, sewing

act

ion

Operation / Explanation

Prior to sewing

Starting position

Position material at seam

start.

– Pedal in rest position.The sewing machine is at a stop.Needle up.

Sewing foot down.

– Depre

ss pedal halfway. The sewing foot raises.

– Position the

material.

– Release

pedal.The sewing foot lowers onto the material.

Sewing – Press a

nd hold the pedal in a forward position.The machine then

continues to sew with the speed determined by the pedal.

In mid-seam

Interrupt sewing procedure

Continue sewing procedure (after

releasing the pedal)

– Release pedal (return to rest position).The machine stops in the

1st position (needle down)The sewing foot is down.

– Press and hold the pedal in a forward positionThe machine then

continues to sew with the speed determined by the pedal

Sewing an intermediate bartack

– Press the stitch regulator lever 2 downwards.The machine sews in

reverse for as long as the stitch regulator lever is depressed.The

speed is determined by the pedal.

-Press button 1.

Sewing over transverse seams

(maximum sewing-foot stroke)

The maximum sewing-foot stroke is activated. The speed is limited to

1600 rpm.Operating modes for the maximum sewing-foot stroke:

– Briefly press the knee switch to activate the maximum sewing-

foot stroke.

– Brie

fly press the knee switch again to deactivate the maximum

sewing-foot stroke.

Fig. 26

Sewing operation, sewing

tion

Operation / Explanation

2nd stitch length during sewing

(maximum stitch

length)

– Press button 3.

Increase the thread tension during

the sewing process

– Press button 2.

At the seam end

Remove the material

– Fully depress and hold the pedal.The final bartack is sewn (if acti-

vated).The threads are cut (if activated)*.The machine stops in the

nd position.The needle is up.The sewing foot is down.

– Remove

the material.

4 Maintenance

4.1 Cleaning and inspection

Maintenance work must be carried out no less frequently than the specified

intervals (see "operating hours" column)

Maintenance intervals may need to be shorter when processing heavy-

shedding materials.

A clean sewing machine is a trouble-free sewing machine.

Caution: Risk of injury!

Switch off the main switch.

The maintenance of the sewing machine must only be done when the

machine is switched off.

Fig. 27 Fig. 28

Maintenance work

to be conducted

Explanation

Operating

hours

Machine head

– Remove any sewing dust

and thread waste (e.g.

with a compressed air

gun)

Areas that particularly require cleaning:

– Area underneath the needle plate 4

– Area around the hook 2

– Bobbin case 3 and interior

– Thread trimmer 5

– Area around the needle

Fig. 29 Fig. 30

Maintenance work

to be conducted

Explanation

Operating

hours

Direct drive

– Clean motor fa

n filter 1

(e.g. with a compressed

air gun)

– Clean motor fan filter 1 of sewing dust.

– Rein

sert the basket and filter.

Pneumatic system

– Check the water level in

the pressure regulator

– Clean the filter insert.

– Check the tightness of

the system

The water level should not rise as far as filter insert 2.

– Drain water from the water separator 3 under pressure

after screwing in the drain screw 4.

Dirt and condensed water are discharged through the filter insert

– Disconnect the machine from the compressed air supply.

– Unscrew the blee

d screw 4. The pneumatic system of the

machine must be depressurised.

– Unscrew the water sep

arator 3.

– Unscrew

the filter insert 2. Wash out the contaminated fil-

ter pan and filter insert with benzene (not solvent!) and

blow them clean.

– Reassemble

the maintenance unit.

500

4.2 Oil lubrication

To lubricate the sewing machine only use the lubricating oil

DA-10

or an

equivalent oil with the following specifications:

Viscosity at 40° C:10 mm²/s

Ignition point:150° C

DA -10

can be purchased from

DÜRKOPP ADLER AG

retail outlets under the

following part numbers:

250 ml container: 9047 000011

1 litre container: 9047 000012

2 litre container: 9047 000013

5 litre container: 9047 000014

Fig. 31 Fig. 32

Caution: Risk of injury!

Oil can cause skin rashes.

Avoid prolonged contact with your skin.

Wash thoroughly after contact.

CAUTION!

The handling and disposal of mineral oils is subject to legal regulations.

Transfer used oil to an authorised collection point.

Protect the environment.

Take care not to spill any oil.

Maintenance work to be

conducted

Explanation Operating

hours

Lubrication of the machine

head

The sewing machine is equipped with a central oil wick

lubrication. All bearings (apart from the hook) are supplied by the

oil reservoir 3.

– The oil level must not drop below the "MIN" mark 5.

– Fill oil through the hole 4 in the inspection window up to

the "MAX" mark.

Hook lubrication

– Swing up sewing machine head.

– Check the oil level through inspection window 2.

– Fill the oil reservoir with oil through plug 1.

– The necessary oil quantity for the correct lubrication of

the hook is factory set by the manufacturer.

Contents Page:

Part 2: Installation Instructions Class 667

1 Scope of delivery ......................................................................................................................................... 3

2 General information and transport packaging......................................................................................... 3

3 Assembling the stand and table plate....................................................................................................... 4

3.1 Assembling stand MG 55-3 .......................................................................................................................... 4

3.2 Completing the table plate for the MG 55-3 stand with direct drive ............................................................ 5

3.3 Creating the table plate................................................................................................................................. 5

3.4 Fastening the table plate to the stand .......................................................................................................... 6

3.5 Adjusting the working height ........................................................................................................................ 7

3.6 Fitting the machine head .............................................................................................................................. 8

3.7 Attaching the knee lever ............................................................................................................................... 9

3.8 Mounting the control panel........................................................................................................................... 10

3.9 Fitting the sewing light and sewing light bracket (optional equipment)........................................................ 11

4 Electrical connection.................................................................................................................................. 12

4.1 General.......................................................................................................................................................... 12

4.2 Establishing equipotential bonding............................................................................................................... 12

4.2.2 Knee switch ................................................................................................................................................. 13

4.3 Connecting the DA321G control unit............................................................................................................ 14

4.4 Connecting the knee switch.......................................................................................................................... 14

4.5 Attaching and connecting the sewing light transformer (optional equipment) ............................................. 15

4.5.1 Connecting the sewing light transformer to the DA321G control unit ......................................................... 16

4.5.2 Connecting the sewing light to the transformer .......................................................................................... 17

4.6 Setting machine-specific parameters........................................................................................................... 18

5 Pneumatic connection................................................................................................................................19

5.1 Pneumatic sewing foot lift............................................................................................................................. 19

6Lubrication................................................................................................................................................... 20

7Sewing test.................................................................................................................................................. 21

Abb. 1

1 Scope of delivery

The items supplied

depend on your order

Before setting up the machine please check to make sure all of the required

parts are present.

This description refers to the special sewing machine whose individual

components are delivered directly and completely from

Dürkopp Adler

–

Machine head

Dürkopp Adler accessory set with:

–

Reel stand

– Protective cover (not shown)

Controller parts set, complete:

–

Control unit

–

Control panel

Optional equipment

–

Stand with table plate

and drawers

–

Pedal and pedal linkage

–

Knee switch

–

Maintenance unit with connection hose

2 General information and transport packaging

If the special sewing machine you have bought is already set up, the following

transport packing must be removed:

– Safety straps and battens on the machine head, table plate and stand.

– Safety block and straps on the sewing drive.

CAUTION!

The special sewing machine must be set up by trained specialist

personnel.

3 Assembling the stand and table plate

3.1 Assembling stand MG 55-3

Fig. 2

– Ass

emble the stand in accordance with the illustration.

– Fasten the pedal 2 to the stand brace 1.

– Affix the stand brace 1 to the stand.

– Align the pedal after assembling the entire machine (see chapter 3.4).

– Screw on the holder for the oil can 3.

– Turn the adjusting screw 4 to ensure the stability of the stand.The stand

must rest with all four feet on the floor.

3.2 Completing the table plate for the MG 55-3 stand with direct drive

Fig. 3

– Turn over the table plate 8.

– Sc

rew on the cable channel 1.

– Screw on the motor control unit 2.

– Screw on the power supply unit 3 (optional equipment).

– Screw on the knee switch 4 for the sewing-foot stroke.

– Screw on the set value initiator 5.

– Screw on the drawer 6 together with its fixtures.

– Screw on the sewing light transformer 7 (optional equipment).

– Assemble the electrical cable according to (see chapter 4) in these

instructions.

A larger scale illustration is available at the end

of the manual.

3.3 Creating the table plate

If you are creating the table plate yourself, please refer to the illustrations at

the end of this manual for the measurements.

3.4 Fastening the table plate to the stand

Fig. 4

– Fas

ten stand 7 to table plate 2 by using wood screws (6x30). Pre-drill the

holes for the wood screws.

– Observe the centre mark for the stand (siehe Kapitel 3.2).

– Turn the stand 7 to its normal position.

– Attach the rod 3 to the pedal 5 and set value initiator.

– For ergonomic reasons align laterally the pedal 5 as follows:The centre of

the pedal must be approximately under the needle.Slots are provided in

the stand brace 4 to help align the pedal.

– Loosen screw 6.

– Adjust the height of the pedal linkage so that, when released, the pedal is

at an angle of approx. 10°.

– Tighten screw 6.

– Insert the reel stand 1 into the drilled hole in the table plate and secure in

place with a nut and washer.

– Mount and align the reel holder and unwinder arm.

– The reel holder and unwinder arm must be positioned on top of each

other.

3.5 Adjusting the working height

Fig. 5

– The working height is adjustable between 750 and 900 mm (measured to

the upper edge of the table plate).

– Undo screws 1 on the stand braces.

– Adjust the table plate horizontally to the required working height.To

prevent tilting, pull out / push in the table plate by the same distance on

both sides.

– Fasten screws 1.

3.6 Fitting the machine head

Fig. 6

– Fit the machine head 1 into the opening in the table plate.

3.7 Attaching the knee lever

The knee lever 1 mechanically raises the sewing foot.

– Attach the knee lever 1.

– Loosen the screws on the joint 4.

– Adjust the knee lever so that it can be conveniently operated with the

right knee.

– Tighten the screws on joint 4 again.

– Loosen screw 2.

– Align the knee-pad 3.

– Tighten screw 2 again.

Fig. 7 Fig. 8

Caution!

Before turning the machine head first unhook the knee lever 1.

3.8 Mounting the control panel

– The machine arm is provided with two threaded holes for attaching the

control panel.

– Secure the external control panel 3 to the arm by using the mounting

bracket 2 and two screws.

– Remove the valve cap 4.

– Route the power supply cable 5 for the control panel along the arm and

downwards through the opening in the table plate 6.

– Insert the connection plug into the B776 socket of the drive control.

– Mount the valve cap 4.

Fig. 9 Fig. 10

3.9 Fitting the sewing light and sewing light bracket (optional equipment)

The sewing light 2 is mounted on the arm cover 1.

– Unscrew the arm cover 1.

– Use a 4.5 mm Ø bit to drill the mounting holes 4.

– Screw the retainer piece 6 in place by using the screws 5.

– Screw the arm cover back on.

– Fix the sewing light 2 to the retainer piece 6.

– Remove the valve cap 4.

– Electrical connection (see chapter 4.5.2).

Fig. 11 Fig. 12

4 Electrical connection

4.1 General

4.2 Establishing equipotential bonding

4.2.1

Machine head

The earthing cable 2 is included in the machine's accessory pack.

The earthing cable 2 discharges static charge from the machine head to the

earth via the control box.

– Connect the earthing cable 2 to the flat connector 1 (already screwed

onto the machine head) and then route it through the cable duct to the

control box.

– Screw the earthing cable 2 to the control box by using screw 3.

– The earthing cable 2 should also be fastened underneath the table plate

with nail clips.

Caution!

All work on the electrical equipment of this special sewing machine may only

be carried out by qualified electricians or other appropriately trained persons.

The mains plug must be removed during any work on the electric equipment!

Fig. 13 Fig. 14

4.2.2 Knee switch

– Secure the large eyelet on the earthing cable 1 to the knee switch by

using screw 2.

– Screw the earthing cable 1 to the control box by using screw 3.

Fig. 15 Fig. 16

4.3 Connecting the DA321G control unit

– Insert the lead from the controller (pedal) into socket B80 of the control

unit.

– Insert the lead from the motor sensor 1 into socket B2 of the control unit.

– Insert the lead 2 from the motor into socket B41 of the control unit.

– Insert the lead to the sewing machine into socket A of the control unit.

– Lay all leads through the cable duct.

– Insert the lead from the control panel (if present) into socket B776.

4.4 Connecting the knee switch

– Insert the knee switch cable 3 into the KN19 socket on the front.

– Use the clips 4 to secure the cable 3 in place (667-180312 and 667-

180332 only).

Fig. 17 Fig. 18

KN19

B776

V8 . .

B18

LSM...

B80

EB.. .

B41

4.5 Attaching and connecting the sewing light transformer (optional equipment)

Fig. 19

– Remove the special

machine’s mains plug!

– Route the mains cable 1 of the sewing light transformer 2 through the

cable duct 3 and up to the main switch.

It is connected to the mains-connection side of the main switch (or motor-

protection switch).

– See connecting diagram 9800 169002B.

– Stick the adhesive label with the safety instructions onto the front of the

main switch.

Caution!

The sewing light transformer is directly connected to the mains supply. It is

therefore live even when the main switch is switched off.

The mains plug must be removed before conducting any work on the sewing

light transformer, e.g. when changing the fuse.

4.5.1 Connecting the sewing light transformer to the DA321G control unit

– Loosen the 4 screws on the front plate of the control unit.

– Remove the front plate.

– Push the cable from the back through the cable duct 1 into the control

unit.

– Remove the black rubber grommet 2.

– Pierce the round opening of the rubber grommet with a screwdriver.

– Guide the cable of the sewing light transformer through the resulting

opening in the rubber grommet.

– Insert the rubber grommet again.

– With a small screwdriver press on the terminal openings 4 and 3 to open

the terminals 5 and 6.

– Connect the blue cable to terminal 6 and the brown cable to terminal 5.

– Fasten the front plate with the 4 screws again.

Fig. 20 Fig. 21

4.5.2 Connecting the sewing light to the transformer

– Insert the sewing light's supply cable into machine arm 1.

– Pass the connecting cable downwards through the opening in the table

plate 2.

– Reassemble the valve cap.

– Attach the sewing light's connecting cable underneath the table plate

with cable clips.

– Establish a connection to the cable of the sewing-light transformer 3.

Fig. 22 Fig. 23

4.6 Setting machine-specific parameters

4.6.1 General information

The functions of the sewing-drive control are determined by the program and

the parameter settings.

4.6.2 Autoselect

The control unit detects which machine series is connected by measuring the

Autoselect resistance in the machine. Autoselect selects control functions

and the pre-set parameter values.

– Acc

ording to the corresponding parameter sheet (9800 331104 PB 53)

the correct machine class is to be set with parameter F-290.

Caution!

If the control unit fails to detect a valid Autoselect resistance (or any at all),

the drive only runs with the so-called emergency operating functions to

prevent machine damage.

5 Pneumatic connection

Pneumatic-connection pack

A pneumatic-connection pack for stands with compressed-air maintenance

units is available under the Order No. 0797 003031.

It contains the following components:

– Connection hose, 5 m long (Ø = 9 mm)

– Hose nozzles and ties

– Plug-and-socket connector

Connecting the compressed-air maintenance unit

– Attach the compressed-air maintenance unit 6 with bracket, screws and

strap to the stand-brace.

– Connect the maintenance unit 6 to the compressed-air supply by using a

connection hose 5 (Ø = 9 mm) and hose coupling R1/4".

Connecting the compressed-air maintenance unit to the machine head

– Unscrew the cover 4.

– Connect hose 2 (in the accessory pack) to the distributor plate 5 on the

machine head.

– Fix the cover 4.

Adjusting the operating pressure

– The operating pressure is 6 bar. It can be read by using the pressure

gauge 3.

– To adjust the operating pressure lift and turn the handle 1.

Increase pressure = turn handle 1 clockwise.

Decrease pressure = turn handle 1 counter-clockwise

– Press the handle 1.

5.1 Pneumatic sewing foot lift

See Instructions 0791 867704.

Fig. 24 Fig. 25 Fig. 26

Caution!

The pneumatic units will only operate properly at a supply pressure of 8 to 10

bar.

The special sewing machine’s operating pressure is 6 bar.

6 Lubrication

To lubricate the sewing unit only use

DA 10

lubricating oil or an equivalent oil

with the following specifications:

Viscosity at 40° C:10 mm²/s

Ignition point:150° C

DA 10

can be purchased from

DÜRKOPP ADLER AG

retail outlets under the

following part numbers:

250 ml container:9047 000011

1 litre container: 9047 000012

2 litre container: 9047 000013

5 litre container: 9047 000014

Lubrication of the machine head (first filling)

Tip

All wicks and felts are saturated with oil prior to delivery. This oil is returned

to the oil reservoir 1.

Do not overfill the container.

– Top up the oil reservoir 1 through the hole 2 up to the "MAX" mark 3.

Fig. 27 Fig. 28

Caution: Risk of injury!

Oil can cause skin rashes.

Avoid prolonged contact with your skin.

Wash thoroughly after contact.

CAUTION!

The handling and disposal of mineral oils is subject to legal regulations.

Dispose of used oil at an authorised collection point.

Protect the environment.

Take care not to spill any oil.

7 Sewing test

A sewing test should be carried out when setting-up is complete.

– Plug the mains cable into the socket.

– Th

read in the bobbin thread.

– Turn on the main switch.

– Lock the sewing foot in an elevated position.

– Fill the bobbin at medium speed.

– Switch off the main switch.

– Thread in the needle and hook thread (see operating instructions).

– Select the material to be processed.

– Carry out the sewing test, first at low speed and then gradually increasing

it.

– Check to make sure the seams are of the required quality. If not, alter the

thread tensions (see the corresponding section in the operating

instructions). If necessary, the settings specified in the service

instructions should also be checked and corrected.

Caution: Risk of injury!

Switch off the main switch.

The needle and hook threads may only be threaded with the sewing machine

switched off.

Durkopp Adler 667 Handleiding

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