669 PREMIUM
Operating Instructions
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE
All rights reserved.
Property of Dürkopp Adler AG and protected by copyright.
Any reuse of these contents, including extracts, is prohibited without
the prior written approval of Dürkopp Adler AG.
Copyright © Dürkopp Adler AG 2016
Table of Contents
1 About these instructions.................................. ..................................5
1.1 For whom are these instructions intended? ..........................................5
1.2 Representation conventions – symbols and characters........................6
1.3 Other documents............ ..................................... ..................................7
1.4 Liability ..................................................................................................8
2 Safety....................................................................................................9
2.1 Basic safety instructions........................................................................9
2.2 Signal words and symbols used in warnings.......................................10
3 Machine description..........................................................................15
3.1 Components of the machine ...............................................................15
3.2 Proper use............................................... ..................................... .......16
3.3 Declaration of Confor mi ty....................................................................17
4 Operation ...........................................................................................19
4.1 Preparing the machine for operation...................................................19
4.2 Switching on and off the machine .......................................................20
4.3 Switching on and off the sewing lamp.................................................21
4.4 Inserting/changing the needle .............................................................22
4.5 Threading the needle thread....................................... ... .....................24
4.6 Winding the hook thread .....................................................................28
4.7 Changing the bobbin ...........................................................................31
4.8 Thread tension .................. ... ... .................................... ........................32
4.8.1 Setting the needle thread tension........................................................33
4.8.2 Setting the hook thread tension...........................................................33
4.9 Setting the needle thread regulator.....................................................35
4.10 Lifting the sewing feet..........................................................................36
4.11 Sewing backwards with the stitch adjustment lever (optional)............36
4.12 Setting quick stroke adjustment ..........................................................38
4.13 Quick functions on the push buttons...................................................39
4.13.1 Activating function buttons ..................................................................39
4.13.2 Assigning a function to the favorite button ..........................................41
4.14 Sewing.................................................................................................42
5 Programming.....................................................................................45
5.1 Control panel OP3000.........................................................................45
5.2 Switching on the machine ...................................................................47
5.3 Software operating modes ..................................................................48
5.4 Using Manual mode ............................................................................50
5.4.1 Selecting the quick access function (softkey menu)............................52
5.4.2 Setting the Speed parameter (Max. Speed) .....................................55
5.4.3 Setting the Thread cutter parameter (Thread Trim) ........................56
5.4.4 Setting the Thread clamp parameter (Thread Clamp)......................56
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 1
Table of Contents
5.4.5 Setting the Initial alignment stitch parameter (PointPos.°)..............56
5.4.6 Setting the Start bartack parameter (Start Tack)............................57
5.4.7 Set End bartack parameter (End Tack).............................................60
5.4.8 Setting the Sewing foot lift parameter (Foot) .....................................62
5.4.9 Setting the Bobbin monitor parameter (Bobbin) ................................62
5.4.10 Setting the Information parameter (Info)...........................................65
5.4.11 Setting the Edge stop parameter (Edge Guide)................................66
5.4.12 Setting the Correction of effects of high speed parameter
(Speed Corr.) ..................................................................................66
5.4.13 Setting the Material thickness detection parameter
(Fabric Thickness)........................................................................71
5.5 Using Automatic mode........................................................................77
5.5.1 Sewing in Automatic mode..................................................................78
5.5.2 Canceling a program in automatic mode.............................................81
5.6 Using Programming/Edit mode ...........................................................81
5.6.1 Creating a new program......................................................................81
5.6.2 Creating a program using keyboard input...........................................82
5.6.3 Creating a program using Teach-In.....................................................84
5.6.4 Adjusting parameters for the current seam section.............................85
5.6.5 Adjusting parameters for the selected program..................................87
5.6.6 Editing programs.................................................................................89
5.6.7 Copying the program............... .. ... ..................................... .. ... .............90
5.6.8 Deleting the program............... .. ... ..................................... .. ... .............92
6 Maintenance.......................................................................................93
6.1 Cleaning ..............................................................................................94
6.2 Lubricating...........................................................................................96
6.2.1 Lubricating the machine head.............................................................97
6.2.2 Lubricating the hook............................................................................98
6.3 Servicing the pneumatic system..........................................................99
6.3.1 Setting the operating pressure............................................................99
6.3.2 Draining the water condensation.......................................................100
6.3.3 Cleaning the filter element.................................................................102
6.4 Parts list.............................................. ... .................................... ........103
7 Setup ................................................................................................105
7.1 Checking the scope of delivery .........................................................105
7.2 Removing the transport locks ............................................................105
7.3 Assembling the stand........................................................................ 106
7.4 Assembling the pedal and setpoint device........................................107
7.5 Tabletop ............................................................................................108
7.5.1 Completing the tabletop ............... .....................................................108
7.5.2 Assembling the tabletop to the stand................................................109
7.6 Setting the working height.................................................................110
7.7 Assembling the control......................................................................111
2 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Table of Contents
7.8 Placing the machine head.................................................................112
7.9 Assembling the control panel............................................................113
7.10 Assembling the knee button..............................................................114
7.11 Electrical connection .........................................................................115
7.11.1 Connecting the sewing lamp transformer..........................................116
7.11.2 Establishing equipotential bonding....................................................118
7.11.3 Connecting the control ......................................................................119
7.12 Pneumatic connection (optional).......................................................120
7.12.1 Assembling the compressed air maintenance unit............................121
7.12.2 Setting the operating pressure..........................................................122
7.13 Checking the lubrication....................................................................123
7.14 Performing a test run.........................................................................124
8 Decommissioning ...........................................................................125
9 Disposal ...........................................................................................127
10 Troubleshooting..............................................................................129
10.1 Customer Service..............................................................................129
10.2 Messages of the software .................................................................130
10.2.1 Information messages.......................................................................130
10.2.2 Error messages.................................................................................134
10.3 Errors in sewing process...................................................................141
11 Technical data .................................................................................143
12 Appendix..........................................................................................147
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 3
Table of Contents
4 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
About these instructions
1 About these instructions
These instructions have been prepared with utmost care.
They contain information and notes intended to ensure long-term
and reliable operation.
Should you notice any discrepancies or if you have improvement
requests, then we would be glad to receive your feedback through
Customer Service ( p. 129).
Consider the instructions part of the product and store them in a
place where they are readily avai l able.
1.1 For whom are these instructions intended?
These instructions are intended for:
Service Instructions are supplied separately.
With regard to minimum qualification and other requiremen ts to be
met by personnel, please also follow the chapte r Safety ( p. 9).
• Operators:
This group is familiar with the machine and has access to
the instructions. Specifically, chapter Operation p. 19
is important for the operators.
• Specialists:
This group has the appropriate technical training for
performing maintenance or repairing malfunctions.
Specifically, the chapter Setup p. 105 is important for
specialists.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 5
About these instructions
1.
2.
...
•
1.2 Representation conventions – symbols and characters
Various information in these instructions is represented or highlighted by the following characters in order to facilitate easy and
quick understanding:
Proper setting
Specifies proper setting.
Disturbances
Specifies the disturbances that can occur from an incorrect setting.
Cover
Specifies which covers must be disassembled in order to access
the components to be set.
Steps to be performed when operating the machine (sewing
and equipping)
Steps to be performed for service, maintenance, and
installation
Steps to be performed via the software control panel
The individual steps are numbered:
First step
Second step
The steps must always be followed in the specified order.
Lists are marked by bullet points.
Result of performing an operation
Change to the machine or on the display/control panel.
Important
Special attention must be paid to this point when performing a step.
6 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
About these instructions
Information
Additional information, e.g. on alternative operating options.
Order
Specifies the work to be performed before or after a setting.
References
Reference to another section in these instructions.
Safety Important warnings for the user of the machine are specifically
marked. Since safety is of particular importance, hazard symbols,
levels of danger and their signal words are described separately
in the chapter Safety ( p. 9).
Location
information
If no other clear location information is used in a figure, indications
of right or left are always from the user's point of view.
1.3 Other documents
The machine includes components from other manufacturers.
Each manufacturer has performed a hazard assessment for these
purchased parts and confirmed their design compliance with
applicable European and national regulations. The proper use
of the built-in components is described in the corresponding
manufacturer's instructions.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 7
About these instructions
1.4 Liability
All information and notes in these instructions have been compiled
in accordance with the latest technology and the applicable standards and regulations.
Dürkopp Adler cannot be held liable for any damage resulting
from:
• Breakage and damage during transport
• Failure to observe these instructions
• Improper use
• Unauthorized modifi cations to the machine
• Use of untrained personnel
• Use of unapproved parts
Transport
Dürkopp Adler cannot be held liable for breakage and transport
damages. Inspect the delivery immediately upon receiving it.
Report any damage to the last transport manager. This also
applies if the packaging is not damaged.
Leave machines, equipment and packaging material in the condition in which they were found when the damage was discovered.
This will ensure any claims against the transport company.
Report all other complaints to Dürkopp Adler immediately after
receiving the product.
8 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Safety
2 Safety
This chapter contains basic information for your safety. Read the
instructions carefully before setting up or operating the machine.
Make sure to follow the information included in the safety instructions. Failure to do so can result in serious injury and property
damage.
2.1 Basic safety instructions
The machine may only be used as described in these instructions.
The instructions should be available at the machine's location at
all times.
Work on live components and equipment is prohibited. Exceptions
are defined in the DIN VDE 0105.
For the following work, switch off the machine at the main switch
or disconnect the power plug:
• Replacing the needle or other sewing tools
• Leaving the workstation
• Performing maintenance work and repairs
• Threading
Missing or faulty parts could impair safety and damage the
machine. Only use original parts from the manufacturer.
Transport Use a lifting c arriage or forklift to transpor t the machine. Raise the
machine max. 20 mm and secure it to prevent it from slipping off.
Setup The connecting cable must have a power plug approved in the
relevant country. The power plug may only be assembled to the
power cable by qualified specialists.
Obligations
of the operator
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 9
Follow the country-specific safety and accident prevention regulations and the legal regulations concerning industrial safety and
the protection of the environment.
Safety
All the warnings and safety signs on the machine must always be
in legible condition. Do not remove!
Missing or damaged warnings and safety signs must be replaced
immediately.
Requirements
to be met by
the personnel
Only qualified specialists may:
• set up the machine
• perform maintenance work and repairs
• perform work on electrical equipment
Only authorized persons may work on the machine and must first
have understood these instructions.
Operation Check the machine during operating for any externally visible
damage. Stop working if you notice any changes to the machine.
Report any changes to your supervisor. Do not use a damaged
machine any further.
Safety
equipment
Safety equipment should not be removed or deactivated. If it is
essential to remove or deactivate safety equipment for a repair
operation, it must be assembled and put back into operation
immediately afterward.
2.2 Signal words and symbols used in warnings
Warnings in the text are distinguished by color bars. The color
scheme is based on the severity of the danger. Signal words
indicate the severity of the danger.
Signal words Signal words and the hazard they describe:
Signal word Meaning
DANGER (with hazard symbol)
If ignored, fatal or serious injury will result
WARNING (with hazard symbol)
10 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
If ignored, fatal or serious injury can result
Safety
CAUTION (with hazard symbol)
If ignored, moderate or minor injury can result
CAUTION (with hazard symbol)
If ignored, environmental damage can result
NOTICE (without hazard symbol)
If ignored, property damage can result
Symbols The following symbols indicate the type of danger to personnel:
Symbol Type of danger
General
Electric shock
Puncture
Crushing
Environmental damage
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 11
Examples Examples of the layout of warnings in the text:
DANGER
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that will result
in serious injury or even death if ignored.
WARNING
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in serious or even fatal injury if ignored.
Safety
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in moderate or minor injury if the warning is ignored.
12 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Safety
NOTICE
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in property damage if ignored.
CAUTION
Type and source of danger!
Consequences of non-compliance.
Measures for avoiding the danger.
This is what a warning looks like for a hazard that could
result in environmental damage if ignored.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 13
Safety
14 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Machine description
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3 Machine description
3.1 Components of the machine
Fig. 1: Components of the machine
(1) - Programmable
thread tension
(2) - Push buttons
(3) - Stitch adjustment lever
(4) - Oil level indicator
(5) - Winder
(6) - Electronic handwheel
(7) - Control panel OP3000
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 15
Machine description
3.2 Proper use
WARNING
Risk of injury from live, moving and cutting
parts as well as from sharp parts!
Improper use can result in electric shock,
crushing, cutting and punctures.
Follow all instructions provided.
NOTICE
Non-observance will lead to property damage!
Improper use can result in material damage at the machine.
Follow all instructions provided.
The machine may only be used with sewing material that satisfies
the requirements of the specific application at hand.
The machine is intended only for use with dry sewing material.
The sewing material must not contain any hard objects.
The needle thicknesses permissible for the machine are listed in
the Technical Data ( p. 143) chapter.
The seam must be completed with a thread that satisfies the
requirements of the specific application at hand.
The machine is intended for industrial use.
The machine may only be set up and operated in dry conditions on
well-maintained premises. If the machine is operated on premises
that are not dry and well-maintained, then further measures may
be required which must be compatible with DIN EN 60204-31.
Only authorized persons may work on the machine.
Dürkopp Adler cannot be held liable for damages resulting from
improper use.
16 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Machine description
3.3 Declaration of Conformity
The machine complies with European regulations ensuring health,
safety, and environmental protection as specified in the declaration of conformity or in the declaration of incorporation.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 17
Machine description
18 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
4 Operation
The operating sequence consists of several different steps.
Fault-free operation is necessary in order to achieve a good
sewing result.
4.1 Preparing the machine for operation
WARNING
Risk of injury from moving, cutting and sharp
parts!
Crushing, cutting and punctures are possible.
If possible, make preparations only when the
machine is switched off.
Complete the following steps in preparation of sewing before
starting to work:
• Inserting/changing the needle
• Threading the needle thread
• Inserting and winding on the hook thread
• Setting the thread tensions
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 19
4.2 Switching on and off the machine
++
–
①②
③
Fig. 2: Switching on and off the machine
Operation
(1) - Indicator LED
(2) - Switch
(3) - POWER LED
Switching on the machine
To switch on the machine:
1. Press the switch (2) to the I position.
The indicator LED (1) and the POWER LED (3) illuminate.
Switching off the machine
To switch off the machine:
1. Press the switch (2) to the O position.
2. The indicator LED (1) and the POWER LED (3) go out.
20 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
①
③
②
4.3 Switching on and off the sewing lamp
The sewing lamp switches on and off independent of the main
switch.
Fig. 3: Switching on and off the sewing lamp
(1) - Switch
(2) - Button
Switching on the dimmable sewing lamp
To switch on the dimmable sewing lamp:
1. Press the switch (3) to the I position.
2. Press the switch (1) to the I position.
The dimmable sewing lamp illuminates.
Press button (2) if the sewing lamp is not yet illuminated.
Switching off the dimmable sewing lamp
(3) - Switch
To switch off the dimmable sewing lamp:
1. Press switch (1) or (3) to the O position.
The dimmable sewing lamp goes out.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 21
4.4 Inserting/changing the needle
①
③
④
②
CAUTION
Risk of injury from sharp parts!
Punctures possible.
Switch off the machine before you insert or
change the needle.
NOTICE
Property damage may occur!
There is a risk of machine damage, needle breakage or
thread breakage if the distance between needle and hook tip
is incorrect.
Check the distance to the hook tip after inserting a needle
with a different thickness.
Fig. 4: Inserting/changing the needle
Operation
22 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
(1) - Needle bar
(2) - Screw
(3) - Groove
(4) - Hook
Operation
To change the needle:
1. Turn the handwheel until the needle bar (1) reaches the upper
end position.
2. Loosen the screw (2).
3. Pull the needle out towards the bottom.
4. Insert a new needle into the hole in the needle bar (1) until it
reaches the end stop.
Important
Align the needle in such a way that the groove (3) faces the hook (4).
5. Tighten the screw (2).
Order
Always adjust the clearance between the hook and the needle after
changing to a different needle thickness ( Service Instructions).
Disturbance
An incorrect hook distance can cause the following disturbances:
• Changing to a thinner needle:
• Missing stitches
• Thread damage
• Changing to a thicker needle:
• Damage to the hook tip
• Damage to the needle
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 23
4.5 Threading the needle thread
①②
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Turn off the machine before threading the thread.
Fig. 5: Threading the needle thread (1)
Operation
(1) - Hose guide (2) - Thread guide
To thread the needle thread:
1. Fit the thread reel on the reel stand.
24 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
+
③
④
⑤
⑧
⑦
⑥
⑨
⑩
2. Feed the thread from the rear to the front through the thread
guide (2) on the unwinding bracket.
3. Use a compressed air gun to feed the thread through the hose
guide (1).
Fig. 6: Threading the needle thread (2)
(3) - Tightening lever
(4) - Spring tip
(5) - Thread tension spring
(6) - Thread guide
4. Feed the thread clockwise from the hose guide (10) around
the pre-tensioner (9).
5. Feed the thread counterclockwise around tensioner 1 (8).
6. Feed the thread clockwise around tensioner 2 (7).
7. Feed the thread under the thread guide (6) to the thread
tension spring (5).
8. Lift the tightening lever (3) with the thread.
9. Pull the thread under the spring tip (4).
(7) - Tensioner 2
(8) - Tensioner 1
(9) - Pre-tensioner
(10)- Hose guide
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 25
Fig. 7: Threading the needle thread (3)
+
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⑪
⑫
⑬
⑭
⑯
⑮
Operation
(11)- Hook
(12)- Upper thread guide
(13)- Lower thread guide
10. Guide the thread under the hook (11).
11 . Insert the th re ad fro m bo tt om to top through the hole on the
needle thread regulator (15).
12. Insert the thread from the right to the left through the thread
lever (16).
13. Insert the thread through the upper thread guide (12).
14. Inser t the thread through a hole in the lower thread guid e (13).
(14)- Thread guide needle bar
(15)- Needle thread regulator
(16)- Thread lever
For machines with thread clamp (optional)
15. Insert the left thread through the left hole of the guide above
26 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
the thread clamp.
16. Inse rt the thread through th e lef t hole of the gu ide below the
thread clamp.
Operation
Fig. 8: Thread clamp (optional)
17. Insert the thread into the thread clamp from the left so that
the thread is held in place inside the hook of the clamp.
The thread is supposed to run through the clamp almost without
touching it and in such a way that it only makes contact with the
guides above and below the thread clamp.
18. Feed the thread through the thread guide (14) on the needle
bar.
19. Insert the thread through the needle eye in such a way that
the loose thread end faces the hook.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 27
4.6 Winding the hook thread
①②
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Turn off the machine before threading the thread.
Fig. 9: Winding the hook thread (1)
Operation
(1) - Thread guide (2) - Hose guide
To wind the hook thread:
1. Fit the thread reel on the reel stand.
28 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
⑥
④
⑤
③
⑦
⑨
⑧
2. Feed the thread from the rear to the front through the thread
guide (1) on the unwinding bracket.
3. Use a compressed air gun to feed the thread through the hose
guide (2).
Fig. 10: Winding the hook thread (2)
(3) - Thread guide
(4) - Thread guide
4. Feed the thread counterclockwise fr om the thread guide (4)
around the pre-tensioner (5).
5. Insert the thread in a wavelike manner through the 2 holes of
the thread guide (3): from bottom to top through the left hole
and from top to bottom through the right hole.
6. Guide the thread to the bobbin (6).
Fig. 11: Winding the hook thread (3)
(5) - Pre-tensioner
(6) - Winder
(7) - Bobbin lever
(8) - Bobbin shaft
(9) - Cutter
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 29
Operation
7. Clamp the thread behind the cutter (9) and tear off the loose
end behind it.
8. Fit the bobbin on the bobbin shaft (8).
9. Turn the bobbin clockwise until it clicks.
10. Pull the bobbin lever (7) up.
Information
The hook thread is normally wound on when sewing is in progress.
However, you can also wind on the hook thread without sewing,
e. g. if you require a full bobbin in order to start sewing. For this
purpose, use the winder mode in the softkey menu ( p. 52).
11. Switch on the machine.
12. Press the pedal forwards.
The machine sews and winds the hook thread from the
thread reel onto the bobbin. When the bobbin is filled, the
winding process stops. The bobbin lever moves down.
The cutter is automatically moved into its basic vertical
position.
13. Pull off the full bobbin.
14. Tear off the thread behind the cutter (9).
15. Insert the full bobbin into the hook ( p. 31).
30 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
①②
③④⑤⑥
4.7 Changing the bobbin
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Turn off the machine before changing the bobbin.
Fig. 12: Changing the bobbin
(1) - Hole
(2) - Bobbin case upper sectio n
(3) - Bobbin
To change the bobbin:
Removing an empty bobbin
1. Move the needle to the top dead center.
2. Pull off the hook cover (6) and fold it down.
3. Remove the bobbin case upper section (2) with the empty
4. Remove the empty bobbin.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 31
(4) - Slot
(5) - Tension spring
(6) - Hook cover
bobbin.
Operation
DA150018_V52_XX
②
①
③
Inserting a full bobbin
5. Insert the full bobbin into the bobbin case upper section (2).
6. Feed the hook thread through the slot (4) under the tension
spring (5) into the hole (1).
7. Pull the hook thread approx. 5 cm out of the bobbin case upper
section (2).
The bobbin must rotate in the direction of the arrow when
pulling out the thread.
8. Insert the bobbin case upper section (2) again.
9. Close the hook cover (6).
4.8 Thread tension
Together with the hook thread tension, the needle thread tension
influences the final seam pattern. With thin sewing material,
excessive thread tension can lead to undesired gathering and
thread breakage.
Proper setting
If the tension of needle thread and hook thread is identical, the
thread interlacing lies in the middle of the sewing material.
Set the needle thread tension so that the desired seam pattern is
achieved with the lowest possible te nsi o n.
Fig. 13: Thread tension
(1) - Identical needle threa d and hook thread tension
(2) - Hook thread tension hig her than needle thread tension
(3) - Needle thread tension higher than hook thread tension
32 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
4.8.1 Setting the needle thread tension
The needle thread tension can only be set using the software
of the OP3000; for detailed information, refer to the chapter
Programming ( p. 45).
4.8.2 Setting the hook thread tension
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Switch off the machine before setting the hook
thread tension.
Fig. 14: Setting the hook thread tension (1)
Proper setting
The hook thread tension must be set so that the resulting seam
pattern is uniform.
The basic setting for the tension spring is performed as follows:
• When the bobbin case contains a full bobbin it must sink
slowly under its own weight.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 33
Operation
①
③
②
The braking spring (1) prevents the bobbin running on when the
thread has been cut.
Fig. 15: Setting the hook thread tension (2)
(1) - Braking spring
(2) - Tension spring
To set the hook thread tension:
1. Set the tension spring (2) using the adjusting screw (3).
• To increase the tension: Turn the adjusting screw (3)
clockwise
• To reduce the tension: Turn the adj u sti n g scre w(3)
counterclockwise
(3) - Adjusting screw
34 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
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①
②
4.9 Setting the needle thread regulator
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Switch off the machine before setting the needle
thread regulator.
The needle thread regulator determines the tension applied to
guide the needle thread around the hook.
Proper setting
The loop of the needle thread slides at low tension over the thickest
point of the hook.
Fig. 16: Setting the needle thread regulator
(1) - Screw (2) - Needle thread regulator
To set the needle thread regulator:
1. Loosen the screw (1).
• To increase the tension:
Slide the needle thread regulator (2) to the right
• To reduce the tension:
Slide the needle thread regulator (2) to the left
2. Tighten the screw (1).
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 35
4.10 Lifting the sewing feet
①
Fig. 17: Lifting the sewing feet
(1) - Pedal
To lift the sewing feet:
1. Press the pedal (1) halfway back.
The machine stops and lifts the sewing feet.
The sewing feet remain up as long as the pedal is pressed
halfway back.
OR
Operation
1. Press the pedal (1) fully back.
The thread cutter is activated, and the sewing feet are raised.
4.11 Sewing backwards with the stitch adjustment lever (optional)
The electronic stitch adjustment lever on the machine arm reduces
the stitch length down to sewing backwards in the lower end
position.
36 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
①
Fig. 18: Sewing backwards with the stitch adjustment lever
(1) - Stitch adjustment lever
To sew backwards with the stitch adjustment lever:
1. Slowly push the stitch adjustment lever (1) down.
The stitch length becomes smaller . In the low er end position,
the machine sews backwards with the set stitch length.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 37
Operation
①
②
4.12 Setting quick stroke adjustment
On machines with quick stroke adjustment the elevated sewing
foot stroke is switched via the knee button. The toggle switch on
the rear side of the knee button determines whether the elevated
sewing foot stroke is switched on permanently or only while the
knee button is pressed.
Fig. 19: Setting quick stroke adjustment
(1) - Knee button (2) - Toggle switch
To set the quick stroke adjustment:
For permanent conversion
1. Set the toggle switch (2) to the upper position.
• To switch on the elevated sewing foot stroke:
Push the knee button (1) to the right.
• To switch off the elevate d se wing foot stroke:
Push the knee button (1) to the right again.
For temporary conversion
1. Set the toggle switch (2) to the lower position.
• To switch on the elevated sewing foot stroke:
Push the knee button (1) to the right and keep it pressed.
The elevated sewing foot stroke is retained as long as the
knee button is pushed to the right.
• To switch off the elevate d se wing foot stroke:
Release the knee button (1).
38 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
+
+/–
①
②④③⑤ ⑦⑥
4.13 Quick functions on the push buttons
The machine has push buttons on the machine arm which can be
used to activate specific functions while sewing.
4.13.1 Activating function buttons
Fig. 20: Activating function buttons
+/–
(1) - Favorite button
(2) - Sewing backwards
(3) - Needle position
(4) - Start bartack/end bartack
(5) - Stitch length preselec tion
(6) - Auxiliary thread tension
(7) - fully customizable button
To activate/deactivate a function button:
Activating a function
1. Press the desired button.
The function is activated. The button lights up.
Deactivating a function
1. Press the desired button again.
The function is deactivated. The button turns off.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 39
Functions of the buttons
+/–+/–
Button Function
Sewing backwards
When this button is activated, the machine sews in
reverse.
Needle position
When this button is activated, the needle moves to a
specific position.
This position is determined individually via the
parameter settings. For more information, refer to the
Service Instructions.
The machine comes configured so that selecting the
button will bring the needle up to the top dead center.
Start bartack/end bartack
This button cancels the general setting for sewing
start and end bartacks. If bartacks are on, pressing
the button skips the next bartack. If bartacks are off,
pressing the button sews the next bartack.
Stitch length
When this button is selected, the machine sews with
the greater stitch length that was programmed for this
stitch length on the control panel.
Operation
Auxiliary thread tension
When this button is selected, the machine sews with
the programmed auxiliary thread tension.
Fully customizable
The button is fully customizable.
The machine comes configured so that the machine
will switch to the next seam section when the button
is pressed.
40 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
+
+/–
②① ③ ④
4.13.2 Assigning a function to the favorite button
You can assign one of the button functions to the favorite button.
Select a function that you frequently use so that you can switch it
on faster while sewing.
Fig. 21: Assigning a function to the favorite button
+/–
(1) - Favorite button
(2) - Screws
(3) - Initial position
(4) - Screw vertical
The button function is assigned by turning the screw (2) under the
button until it is vertical. Only one function at a time can be assigned
to the favorite button (1). Therefore, only one of the screws (2)
may be in the vertical position (4).
All screws must be turned back to their horizontal initial position (3)
before a new function is assigned.
To assign a function to the favorite button:
1. Turn all screws to their initial position (3) so that the slots of
the screws are horizontal.
2. Turn the screw (2) under the desired button 90° so that the
slot is vertical (4).
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 41
4.14 Sewing
①
②
③
④
Fig. 22: Sewing
Operation
WARNING
Risk of injury from the needle if sewing is
started unintentionally!
Punctures possible.
Do not press the pedal when you fingers are in
the area of the needle tip.
(1) - Position +1
(2) - Position 0
(3) - Position -1
(4) - Position -2
The pedal starts and controls the sewing process.
Condition Processes
Before starting sewing
Initial situation • Pedal in rest position (position 0)
Position
the sewing
material
At seam beginning
Machine is at a standstill
Needle is up. Sewing feet down.
• Press the pedal halfway back (position -1)
The sewing feet are lifted.
• Position the sewing material.
• Release the pedal.
Sewing feet are lowered onto the sewing material.
42 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Operation
Condition Processes
Start bartack
and sew
In the middle of the seam
Stopping
sewing
Continue
the sewing
process (after
releasing the
pedal)
Sew over
thicker parts of
the material
Change the
stitch length
Increase the
thread tension
Sew an
intermediate
bartack
• Press the pedal forwards (position +1) and keep it
there.
Machine sews a start bartack (if specified).
Afterwards, the machine continues to sew - with
increasing speed the further forward the pedal is
pressed.
• Release the pedal (position 0).
Machine stops. Depending on the setting, sewing
feet and needle are up / down.
• Press the pedal forwards (position +1)
Machine continues to sew - with increasing speed
the further forward the pedal is pressed.
• Switch on the elevated sewing foot stroke with the
knee button ( p. 38).
• 2nd stitch length must be activated using the button
on the push buttons ( p. 39).
• Activate auxiliary thread tension using the button on
the push buttons ( p. 39).
• Sew backwards with stitch adjustment lever
( p. 36) or activate backwards sewing using the
button on the push buttons ( p. 39).
At seam end
Finish the
seam and
remove the
sewing
material
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 43
• Press the pedal fully back (position -2) and keep it
there.
End bartack is sewn, and thread is cut (if set).
Machine stops.
Needle is up. Sewing feet up.
• Remove the sewing material.
Operation
44 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
①
②
5 Programming
5.1 Control panel OP3000
Fig. 23: Control panel
(1) - Softkey button (2) - Softkey menu button
All settings in the software for the 669 PREMIUM are performed
using the OP3000 control panel.
Button Function
Numeric
buttons
0 to 9
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 45
• Inputting the parameter value
(if the field for the parameters is activated)
• Selection of a parameter that is shown on the control
panel
• Press the button below the desired symbol to select the
function
• Inputting a program name
• Cancel the function
• Exit the menu (changes remain saved) to return to the
starting level
• Confirm the settings
• Activate the input
Function is different for each menu.
Function is different for each menu.
Button Function
1.9
4 +000 +00 -013
10 10
10
10
Function is different for each menu.
• Selection to the right
• Selection to the left
• Back one menu level
• Increase the value
• Scroll through the list (upwards)
• Decrease the value
• Scroll through the list (downwards)
Softkey button
The button can be assigned various functions as required,
p. 52.
Programming
Softkey menu button
Quick access function, p. 52.
No function assigned
Display on the control panel
The display shows the menu items that can be selected.
The activated menu point is shown inverted.
Fig. 24: The active entry is shown inverted (example)
46 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
①
Entering values
Values can be entered using the ▲/▼ buttons or the numeric
buttons.
Information
If a value is entered that is not within the specified value range,
the software will automatically adopt the limit value which is closest
to your entry from the value range.
5.2 Switching on the machine
Fig. 25: Switching on the machine
(1) - Main switch
To switch on the machine:
1. Switch on the main switch (1).
The display briefly shows the software versions:
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 47
Programming
669
V03.68
2016-06-16
OP3000
A03
2014-11-27
②
③
4 +000 +00 -013
10 10
4.0 25 5 3.0
Fig. 26: Display of the control/control panel software version
(2) - Software version of the OP3 000 (3) - Control panel software
The machine performs a reference run:
The display shows the program last used, or Manual mode.
Fig. 27: Display of the program last used (Automatic mode)
1.9
Fig. 28: Display in Manual mode
1.9
10
10
51
5.3 Software operating modes
The software of the 669 PREMIUM has 3 available operating
modes:
• Manual mode (program 000) ( p. 50)
Manual mode is the simplest operating mode. There are no
programs/seam programs and no inputs for individual seam
sections.
Changes to the sewing foot pressure, stroke height, stitch
length, needle thread tension and, also, the activation of
other functions are always implemented immediately.
All the major sewing parameters can be changed manually
during the sewing process.
48 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
• Automatic mode (program 001 – 999) ( p. 77)
Automatic mode allows for the execution of setups (seam
program comprised of only one seam section) or complex
seam programs (comprising 2 or more seam sections).
Seam programs are divided into individual seam sections.
Each section is assigned its own individual stitch length,
needle thread tension, etc.
• Programming/Edit mode ( p. 81)
Programming mode allows the operator to create a new
seam program in a quick and easy manner.
Edit mode can be used to adjust, delete and copy seam
programs.
The individual modes and their uses are explained in detail later on.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 49
5.4 Using Manual mode
4.0 25 5 3.0
Fig. 29: Parameters in manual mode
Programming
1.9
51
The following table shows the individual symbols of parameters
on the display and the functions of the buttons on the control panel.
For some parameters, the exact setting is described in more detail
later in the chapter.
The selected parameter is shown inverted on the control panel
display. When a parameter is changed, its new value is loaded
immediately.
Symbol Meaning
The button can be assigned various functions as required,
p. 52.
•Press softkey button
Quick access function (softkey menu)
Press the softkey menu button, p. 52.
Program number
Value range: 000 - 999
Program 000 indicates that the control is in "Manual mode".
•Use ◄/►to select the Program parameter
•Use ▲/▼ to change the program number or enter the
program number using the numeric buttons 0–9 and
confirm with the OK button
Stitch length
Value range: 00.0 – 9.0 [mm] (depending on the sewing
equipment or class)
•Use ◄/► to select the Stitch length parameter
•Use ▲/▼ to change the stitch length
Needle thread tension
Value range: 01 - 99
•Use ◄/► to select the Needle thread tension parameter
•Use ▲/▼ to change the needle thread tension
50 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Symbol Meaning
Sewing foot pressure
Value range: 01 - 20
•Use ◄/► to select the Sewing foot pressure parameter
•Use ▲/▼ to change the sewing foot pressure
Sewing foot stroke
Value range: 00.0 – 09.0 [mm] (0.5 mm increments)
•Use ◄/► to select the Stroke height parameter
•Use ▲/▼ to change the stroke height
Other parameters
• Use the OK button to go to the list
•Use ▲/▼ to select the parameter
• Use the OK button to go to the parameter settings
More detailed description of parameters:
• Speed (Max. Speed) ( p. 55)
• Thread cutter (Thread Trim) ( p. 56)
• Thread clamp (Thread Clamp) ( p. 56)
• Initial alignment stitch (PointPos.°) ( p. 56)
• Start bartack (Start Tack) ( p. 57)
• End bartack (End Tack) ( p. 60)
• Sewing foot lift (Foot) ( p. 62)
• Bobbin monitor (Bobbin) ( p. 62)
• Information (Info) ( p. 65)
• Edge stop (Edge Guide) ( p. 66)
• Correcting effects of high speed (Speed Corr.) ( p. 66)
• Material thickness detection (Fabric Thickn
( p. 71)
ess)
S.p.m. or seam length in [mm]
The active option, either s.p.m. or mm, can be set at the
Technician level. The s.p.m. option is set at the factory.
After the thread has been cut off, the display is retained.
Measurement/counting restarts when sewing starts again.
• Cancel the function
• Exit the menu (changes remain saved) to return to the
starting level
• Confirm the settings
• Activate the input
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 51
Programming
Symbol Meaning
Create a program, p. 81.
No function assigned
No function assigned
No function assigned
5.4.1 Selecting the quick access function (softkey menu)
Here, you have quick access to functions during the sewing
process. You can also assign a function to the softkey button.
To select a quick access function:
1. Press the softkey menu button.
2. The following display appears:
Fig. 30: Softkey menu
3. To select a function: Press the numeric button under the
desired function.
OR
52 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
4. T o assign a function to the softkey button: Press the numeric
button under the desired function and the softkey button at
the same time.
The function is assigned to the softkey button and can sub-
sequently be called up using this softkey.
Information
There are various options available to assign to the softkey button
depending on whether this is before the seam or in the seam.
5. To exit the menu, press the ESC button or the softkey
menu button.
Possible button assignment for the softkey button
(Manual mode)
Symbol Meaning
Threading mode
The needle bar moves to the defined position.
The pedal is temporarily locked.
Raise/lower sewing foot
BEFORE the seam:
Position of the sewing foot after thread cutting.
IN the seam:
Position of the sewing foot when sewing stops.
Needle position up / down
If sewing is stopped within the seam, the needle is positioned up or down.
Programming
Activation of programming mode.
BEFORE
the seam
Thread cutter
Function active or inactive.
IN the seam
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 53
Symbol Meaning
Bobbin mode
BEFORE
the seam
Perform half stitches
Half stitches are performed when the button is pressed
(needle position raised or lowered).
IN the seam
Resetting the bobbin stitch counter
The defined maximum s.p.m. of the bobbin used is reset
to the starting value.
Thread clamp
Function active or inactive.
nd
edge stop distance
2
Moves the position for the 2
Edge stop reference run
If the edge stop has lost its correct position due to an
interruption, the reference run returns it to its starting
position.
Programming
nd
edge stop distance.
Possible button assignment for the softkey button
(Automatic mode)
Symbol Meaning
Threading mode
The needle bar moves to the defined position.
The pedal is temporarily locked.
Reset daily piece counter.
Automatic stitch counting
Function active or inactive.
54 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Symbol Meaning
Programming
Activation of programming mode.
BEFORE
the seam
Bobbin mode
BEFORE
the seam
Perform half stitches
Half stitches are performed when the button is pressed
(needle position raised or lowered).
IN the seam
Resetting the bobbin stitch counter
The defined maximum s.p.m. of the bobbin used is reset
to the starting value.
Thread clamp
Function active or inactive.
nd
edge stop distance
2
Moves the position for the 2
Edge stop reference run
If the edge stop has lost its correct position due to an
interruption, the reference run returns it to its starting
position.
nd
edge stop distance.
5.4.2 Setting the Speed parameter (Max. Speed)
It is possible to reduce the maximum speed at this point. The value
of the maximum speed can be set in the software at technician
level.
Menu item Setting option
(Max. Speed)
Speed
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 55
0050 – 3800 [rpm]
depending on subclass
Programming
5.4.3 Setting the Thread cutter parameter (Thread Trim)
Set whether the thread cutter is activated or deactivated at the
end of the seam.
Menu item Setting option
(Thread Trim)
Thread cutter
ON = on
OFF = off
5.4.4 Setting the Thread clamp parameter (Thread Clamp)
If a thread clamp is present, this function can be activated or
deactivated here. The thread clamp is closed for the 1
the seam to ensure that the needle thread lies on the underside
of the sewing material.
Menu item Setting option
(Thread Clamp)
Thread clamp
ON = on
OFF = off
st
stitch of
5.4.5 Setting the Initial alignment stitch parameter (PointPos.°)
The distance of the needle from the material can be adjusted
to allow precise positioning of the sewing material when starting
sewing. The value entered here corresponds to the degree number
on the handwheel.
Menu item Setting option
(PointPos.°)
Initial alignment stitch
function
56 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
000 – 359 [°]
Programming
5.4.6 Setting the Start bartack parameter (Start Tack)
There are various options for setting the start bartack. All subitems
in the Start Tack menu are listed in the following table.
Settings that are more complex and therefore require further
explanation are described in more detail after the table.
Menu items Setting option 1 Setting option 2
On ON/OFF
Stitches (↑)
Number of backward stitches
Stitches (↓)
Number of forward stitches
Repetitions,
Number of sections in a
bartack
p. 58
t Change,
Waiting time at turning points
p. 58
St.Len.Def.,
Default stitch length
p. 58
Speed
Speed in bartack
Pedal Stop,
Single stitches per pedal
p. 59
Value range
01–50
Value range
01–50
Value range
01–10
Value range
0000 – 1000 [ms]
ON/OFF
St.Len. (↑) Value range
01.0 – 9.0 [mm]
St.Len. (↓) Value range
01.0 – 9.0 [mm]
Value range
0000 – 2000
ON/OFF
Thr.Tens.Def.,
Default needle thread tension
p. 59
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 57
ON/OFF Value range
01 - 99
Programming
Menu items Setting option 1 Setting option 2
Catch Backtack,
Bartack before the bartack
p. 59
First Repet,
Number of stitches different
st
section
for 1
p. 59
Invert Dir.,
Invert direction
p. 59
On ON/OFF
Stitches (↑) Value range
01 - 50
Stitches (↓) Value range
01 - 50
On ON/OFF
Stitches (↑/↓) Value range
01 - 50
ON/OFF
Setting: Number of sections in a bartack (repetitions)
A bartack always consists of several sections. If the sewing direction is changed, a new section is started. The number of sections
in a bartack can be set in this submenu.
Setting: Waiting time at turning point (t Change)
The waiting time at the turning points (for example for a change
of sewing direction) is set at this point. A short waiting time in
milliseconds should ensure consistent seam quality (ornamentalstitch bartack).
Setting: Default stitch length (St.Len.Def.)
If this function is active, the same stitch length is used for the
bartack as the one set in Manual mode. If this function is deactivated, a custom input can be entered.
58 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Setting: Single stitches per pedal (Pedal Stop)
If this function is activated, each stitch in the bartack can be sewn
individually by pressing the pedal. This function can only be used
meaningfully if the speed is set very low for the bartack.
Setting: Default needle thread tension (Thr.Tens.Def.)
If this function is active, the same needle thread tension is used
for the bartack as the one set in Manual mode. If this function is
deactivated, a custom input can be entered.
Setting: Bartack before the bartack (Catch Backtack)
To ensure a safe sewing start and complete sewing of the start
bartack, an additional bartack can precede the start bartack.
Only the number of forward and backward stitches can be selected. The stitch length cannot be set individually – it corresponds
to the stitch length of the normal start bartack.
st
Setting: Number of stitches different for 1
section
(First Repet.)
The 1st section of the bartack can be programmed with a different
number of stitches. All subsequent sections have the preset number of stitches from the settings for the start bartack.
Setting: Invert direction (Invert Dir.)
Normally, a bartack starts either with the sewing direction (forwards
– even number of sections) or against the sewing direction (backwards – odd number of sections), depending on the number of
sections.
Setting this parameter inverts the sewing direction of the bartack.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 59
Programming
5.4.7 Set End bartack parameter (End Tack)
There are various options for setting the end bartack. All subitems
in the End Tack menu are listed in the following table.
Settings that are more complex and therefore require further
explanation are described in more detail in the chapter on the start
bartack ( p. 57) or below the table.
Menu items Setting option 1 Setting option 2
On ON/OFF
Stitches (↑)
Number of backward stitches
Stitches (↓)
Number of forward stitches
Repetitions,
Number of sections in a bartack
p. 58
t Change,
Waiting time at turning points
p. 58
St.Len.Def.,
Default stitch length
p. 58
Speed
Speed in bartack
Pedal Stop,
Single stitches per pedal
p. 59
Value range
01 – 50
Value range
01 – 50
Value range
01 – 10
Value range
0000 – 1000 [ms]
ON/OFF
St.Len. (↑) Value range
01.0 – 9.0 [mm]
St.Len. (↓) Value range
01.0 – 9.0 [mm]
Value range
0000 – 2000
ON/OFF
Thr.Tens.Def.,
Default needle thread tension
p. 59
60 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
ON/OFF Value range
01 - 99
Programming
Menu items Setting option 1 Setting option 2
Catch Backtack,
Bartack after the bartack
p. 59
Last Repet,
Number of stitches different
for last section
p. 61
Invert Dir.,
Invert direction
p. 59
On ON/OFF
Stitches (↑) Value range
01 - 50
Stitches (↓) Value range
01 - 50
On ON/OFF
Stitches (↑/↓) Value range
01 - 50
ON/OFF
Setting: Number of stitches different for last section
(Last Repet.)
The last section of the bartack can be programmed with a different
number of stitches. All previous sections have the preset number
of stitches from the settings for the end bartack.
This function is useful for the short stitch for the short thread cutter,
for example. In this case, one less stitch is sewn in the last section.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 61
Programming
5.4.8 Setting the Sewing foot lift parameter (Foot)
The sewing foot lift can have various settings. Possible settings
and the corresponding value ranges are listed in the table.
Menu item Setting option
FL AtStop,
Sewing foot lift when sewing stops
FL AfterTrim,
Sewing foot lift after thread cutting
FL ht.AtStop,
High sewing foot lift when sewing stops
FL ht.A.Trim,
High sewing foot lift after thread cutting
ON = on
OFF = off
ON = on
OFF = off
Value range 00 – 20 [mm]
Value range 00 – 20 [mm]
5.4.9 Setting the Bobbin monitor parameter (Bobbin)
The amount of remaining thread on the bobbin can be monitored
optically or by software using this setting.
Information
The bobbin monitor setting is global and NOT limited to an operating mode or a seam program.
Settings that are more complex and therefore require further
explanation are described in more detail after the table.
Menu items Setting option 1 Setting option 2
Off
Monitor,
p. 63
62 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
t Clean Value range 0000 – 5000 [ms]
Programming
Menu items Setting option 1 Setting option 2
Motor Stop ON/OFF
Softw.,
Software
p. 64
CounterType A/B/C/D
Counter Value range 00000 – 99999
MotorStop ON/OFF
ResetNeces ON/OFF
Setting: Monitor (Monitor)
Monitor mode can only be used if the additional equipment of the
remaining thread monitor is present on the machine. Monitor mode
allows for optical monitoring of the bobbin. The possible settings
are listed in the table.
t Clean
Value range 0000– 5000 [ms]
Motor Stop
ON/OFF
Duration for which the lens is blown
clear with compressed air.
The process takes place as the thread
is cut.
Sewing stops and a notice is shown
on the display when the bobbin is
detected to be nearly empty. If the
parameter is not activated, only the
LEDs on the machine arm give a
warning if the bobbin is empty.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 63
Programming
Setting: Software (Softw.)
In Software mode, the bobbin is monitored by the software based
on the number of stitches sewn. The possible settings are listed
in the table.
CounterType
A/B/C/D
Counter
Value range 00000 – 99999
MotorStop
ON/OFF
ResetNeces
ON/OFF
4 different counters can be applied.
The following 3 subitems can be set for
each of the counters.
Bobbin supply capacity in stitches.
This is a very variable value, which
depends on the size of the bobbin and
the thickness of the thread.
Sewing stops and a notice is shown on
the display when the bobbin is detected
to be nearly empty. If the parameter
is not activated, only the LEDs on the
machine arm give a warning if the
bobbin is empty.
It is only possible to resume sewing after
changing the bobbin and confirming the
message on the control panel.
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Programming
4 +000 +00 -013
10 10
5.4.10 Setting the Information parameter (Info)
Information can be displayed on certain settings during sewing as
desired or required.
Fig. 31: Display with information shown
1.9
10
Possible settings for the Information parameter
Symbol Menu item Meaning
Off no display
Pedal Pedal position
(Value range 24 – -2)
Thick Material thickness detection
Pos Handwheel position
Speed Current speed
Bobbin Bobbin stitch counter
(Value range 000 – 359 [°])
10
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 65
Programming
5.4.11 Setting the Edge stop parameter (Edge Guide)
The edge stop helps to precisely position the sewing material.
The value set indicates the distance between the needle and edge
stop/material edge.
nd
The 2
the softkey menu button or the softkey button if these are
assigned to the 2nddistance.
Menu item Setting option
distance for the edge stop can only be accessed using
Gap
Edge stop
Gap (+)
Edge stop 2
nd
Distance
Value range 01.0 – 45.0 [mm]
Value range 01.0 – 45.0 [mm]
5.4.12 Setting the Correction of effects of high speed parameter (Speed Corr.)
Some parameters are affected by high speeds because of the
resulting physical effects. To counteract these effects and to
achieve consistent results, even at high speeds, adjustment
factors can be set depending on the speed.
Settings that are more complex and therefore require further
explanation are described in more detail after the table.
Menu items Setting option 1 Setting option 2
ON/OFF
Stitchlen.,
Stitch length
p. 69
Off
linear Stitchlen.
Min. speed
Max. speed
2.OnOff Min. speed
2.On Min. speed
66 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Menu items Setting option 1 Setting option 2
Thr.Tens.,
Needle thread
tension
p. 70
FootPress.,
Sewing foot
pressure
p. 70
Off
linear Thr.Tens.
Min. speed
Max. speed
2.OnOff Min. speed
2.On Min. speed
Off
linear FootPress.
Min. speed
Max. speed
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 67
Programming
Overview of settings modes
The correction of the effects of high speeds can be identified in
various modes and responded to depending on the setting.
This general explanation can be applied to the following specific
parameters.
Setting mode Description
linear In the linear setting, the size of the parameter
increases or decreases steadily as the speed
increases. The increase/decrease of the parameter
depends on the limits set for the minimum and
maximum speed.
2.OnOff
2.On
If a certain speed is exceeded, the 2
parameter is activated. If the speed then falls below
this level again, it switches to the base value for the
parameter.
If a certain speed is exceeded, the 2
parameter is activated. If the speed then falls below
this level again, it DOES NOT switch to the base
value for the parameter. Only after finishing the seam
by cutting the thread is the base value for the
parameter set again.
nd
value of the
nd
value of the
68 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Setting: Stitch length (Stitchlen.)
The stitch length changes slightly depending on the speed. For this
reason, the stitch length can be adjusted at different speeds by
the software.
linear Stitchlen.
Value range -50 – 50 [%]
Min. speed
Value range
0000 – 4000 [rpm]
Max. speed
Value range
0000 – 4000 [rpm]
2.OnOff Min. speed
Value range
0000 – 4000 [rpm]
2.On Min. speed
Value range
0000 – 4000 [rpm]
Maximum stitch length variation
reached at the upper speed limit.
Speed at which the increase/
reduction of stitch length should
start.
Speed up to which the increase/
reduction of stitch length should
occur.
nd
nd
stitch
stitch
Speed from which the 2
length should be used.
Speed from which the 2
length should be used.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 69
Programming
Setting: Needle thread tension (Thr.Tens.)
Depending on the speed, the needle thread tension can be
adjusted at different speeds by the software.
linear Thr.Tens.
Value range 00 – 99
Min. speed
Value range
0000–4000[rpm]
Max. speed
Value range
0000–4000[rpm]
2.OnOff Min. speed
Value range
0000–4000[rpm]
2.On Min. speed
Value range
0000–4000[rpm]
Maximum needle thread tension
reached at the upper speed limit.
Speed at which the increase in
needle thread tension should start.
Speed up to which the increase in
needle thread tension should occur.
nd
nd
needle
needle
Speed from which the 2
thread tension should be used.
Speed from which the 2
thread tension should be used.
Setting: Sewing foot pressure (FootPress.)
Depending on the speed, the sewing foot pressure can be adjusted
at different speeds by the software.
linear FootPress
Value range 00 – 20
Min. speed
Value range
0000–4000[rpm]
Maximum sewing foot pressure
reached at the upper speed limit.
Speed at which the increase in
sewing foot pressure should start.
Max. speed
Value range
0000–4000[rpm]
70 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Speed up to which the increase in
sewing foot pressure should occur.
Programming
5.4.13 Setting the Material thickness detection parameter (Fabric Thickness)
To achieve consistently good sewing results for different material
thicknesses, some parameters can be adjusted specifically to the
material thickness.
Settings that are more complex and therefore require further
explanation are described in more detail after the table.
Menu items Setting option 1 Setting option 2
ON/OFF
Stroke,
Sewing foot stroke
p. 74
Stitchlen.,
Stitch length
p. 75
Thr.Tens.,
Needle thread tension
p. 76
Off
linear Stroke
ThickMin
ThickMax
2.OnOff ThickMin
2.On ThickMin
Off
linear Stitchlen.
ThickMin
ThickMax
2.OnOff ThickMin
2.On ThickMin
Off
linear Thr.Tens.
ThickMin
ThickMax
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 71
Programming
Menu items Setting option 1 Setting option 2
2.OnOff ThickMin
2.On ThickMin
FootPress.,
Sewing foot pressure
p. 76
Max.Speed,
Speed
p. 76
Off
linear FootPress.
ThickMin
ThickMax
Off
linear Max.Speed
ThickMin
ThickMax
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Programming
Overview of settings modes
The material thickness can be identified in various modes and
responded to depending on the setting. This general explanation
can be applied to the following specific parameters.
Setting mode Description
linear In the linear setting, the size of the parameter
2.OnOff If a certain material thickness is exceeded, the
2.On If a certain material thickness is exceeded, the
increases or decreases steadily as the material
thickness increases. The increase/decrease in the
parameter depends on the limits set for the minimum
and maximum material thickness.
nd
value of the parameter is activated. If the material
2
thickness then falls below this level again, it switches
to the base value for the parameter.
nd
value of the parameter is activated. If the material
2
thickness then falls below this level again, it DOES
NOT switch to the base value for the parameter.
Only after finishing the seam by cutting the thread is
the base value for the parameter set again.
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 73
Programming
Setting: Sewing foot stroke (Stroke)
The sewing foot stroke can be adjusted at different material thicknesses by the software.
linear Stroke
Value range 00 – 09 [mm]
ThickMin
Value range 00.0 – 10.0 [mm]
ThickMax
Value range 00.0 – 10.0 [mm]
2.OnOff ThickMin
Value range 00.0 – 10.0 [mm]
2.On ThickMin
Value range 00.0 – 10.0 [mm]
Maximum sewing foot stroke
reached at the upper
material thickness limit.
Material thickness at which
the increase in sewing foot
stroke should start.
Material thickness up to
which the increase in
sewing foot stroke should
occur.
Material thickness from
which the 2
stroke height should be
used.
Material thickness from
which the 2
stroke height should be
used.
nd
sewing foot
nd
sewing foot
74 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
Setting: Stitch length (Stitchlen.)
The stitch length changes slightly depending on the material thickness. For this reason, the stitch length can be adjusted at different
material thicknesses by the software.
linear Stitchlen.
Value range -50 – 50 [%]
ThickMin
Value range 00.0 – 10.0 [mm]
ThickMax
Value range 00.0 – 10.0 [mm]
2.OnOff ThickMin
Value range 00.0 – 10.0 [mm]
2.On ThickMin
Value range 00.0 – 10.0 [mm]
Maximum stitch length
variation reached at the
upper material thickness
limit.
Material thickness at which
the increase/reduction of
stitch length should start.
Material thickness up to
which the increase/
reduction of stitch length
should occur.
Material thickness from
which the 2
should be used.
Material thickness from
which the 2
should be used.
nd
stitch length
nd
stitch length
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 75
Programming
Setting: Needle thread tension (Thr.Tens.)
Depending on the material thickness, the needle thread tension
can be adjusted at different material thicknesses by the software.
linear Thr.Tens.
Value range 00 – 99
ThickMin
Value range 00.0 – 10.0 [mm]
ThickMax
Value range 00.0 – 10.0 [mm]
2.OnOff ThickMin
Value range 00.0 – 10.0 [mm]
2.On ThickMin
Value range 00.0 – 10.0 [mm]
Maximum needle thread
tension reached at the upper
material thickness limit.
Material thickness at which
the increase in needle thread
tension should start.
Material thickness up to
which the increase in needle
thread tension should occur.
Material thickness from
which the 2
tension should be used.
Material thickness from
which the 2
tension should be used.
nd
needle thread
nd
needle thread
Setting: Sewing foot pressure (FootPress)
The sewing foot pressure can be adjusted at different material
thicknesses by the software.
linear FootPress
Value range 00 – 20
Maximum sewing foot
pressure reached at the
upper material thickness
limit.
ThickMin
Value range 00.0 – 10.0 [mm]
ThickMax
Value range 00.0 – 10.0 [mm]
76 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Material thickness at which
the increase in sewing foot
pressure should start.
Material thickness up to
which the increase in sewing
foot pressure should occur.
Programming
4 +000 +00 -013
10 10
5.5 Using Automatic mode
Automatic mode includes all program numbers from 001 to 999.
To access Automatic mode:
1. Use
2. Use
◄/► to select the Program parameter.
▲/▼ to select the program number 001 or another one
(if available).
The software switches to Automatic mode, the program name
is shown briefly, and then the following display appears:
Fig. 32: Display in Automatic mode
1.9
10
10
The following table explains the individual symbols on the display
and the functions of the buttons on the control panel.
Symbol Description
Depending on the assignment of buttons, there may be
different functions here, p. 52.
• Press softkey button
Quick access function (softkey menu)
Press the softkey menu button, p. 52.
Program number
Value range: 000 - 999
•Use ◄/► to select the Program parameter
•Use ▲/▼ to change the program number or enter the
program number using the numeric buttons 0–9 and
confirm with the OK button
If you select program 000, the control selects Manual
mode, p. 50.
Seam sections
Number of seam sections contained in the curren t pro gram.
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Programming
6.0 25 8 8.0
2
Symbol Description
Stitch length correction factor
Value range: -50 – 50 [%]
Alters the stitch length in all seam sections
with ▲/▼.
Default needle thread tension adjustment
factor
Value range: -50 – 50 [%]
Alters the needle thread tension in all
seam sections with ▲/▼.
Day piece counter
Function active or inactive, p. 87.
Information on the display
Can be assigned differently as desired, p. 65.
Allows for finer
adjustment
than by
setting the
parameters
directly.
5.5.1 Sewing in Automatic mode
After selecting a program between 001 and 999, you will be in
Automatic mode.
To sew in Automatic mode:
1. Press the pedal forward and sew.
The following display appears:
Fig. 33: Display when sewing in Automatic mode
1.9
10 10
10
10
The parameter values for the current seam section are shown on
the display.
The program bar shows the progress of the seam program.
The number under the current seam section shows the number
of stitches yet to be sewn / the outstanding length of the seam
section.
The program bar shows half the current seam section in bold.
78 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
25 25
25 25
Fig. 34: Seam section in progress
Completed seam sections are shown fully in bold.
Fig. 35: Completed seam section
Additional information is shown next to the program bar, which
can be identified at a glance thanks to the small symbols on the
display:
Symbol Meaning
Start bartack
End bartack
Manually switch between two seam sections (using ◄/►or
button assignment for the push button on the machine arm
or knee button); there is no stitch counting
“10” Number of stitches or length in mm of the seam section.
The active option, either s.p.m. or mm, can be set at the
Technician level. The s.p.m. option is set at the factory.
Stop at the end of the seam section with thread cutting
Switch between two seam sections without stopping
Switch between two seam sections, with a stop, but
without thread cutting
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Programming
Possible actions in the course of the seam
The following table lists the functions that can be performed in the
course of the seam.
Button/Pedal Function
◄/► Seam section forwards/backwards or go to start of
seam section.
Pedal halfway
back
Pedal fully
back
Lift sewing foot.
Cut off or cancel the program.
The program remains stopped at the cutoff point.
Softkey menu, p. 52.
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Programming
5.5.2 Canceling a program in automatic mode
To cancel a program in automatic mode:
1. Push the pedal fully back.
The program is canceled and the thread cut. The machine
takes note of where the program was canceled, and then
continues from the same point when sewing resumes.
2. T o cancel the program completely, press the pedal all the way
backwards again.
The program is canceled, and the machine starts from the
first seam section in the program when sewing resumes.
5.6 Using Programming/Edit mode
5.6.1 Creating a new program
To create a new program:
1. Press the button.
The softkey menu appears.
2. Press the button.
The control displays the next free program number.
Fig. 36: Creating a new program
3. Press the OK button to lo ad the program number.
Or:
4. Choose a different p rogram number using ▲/▼ or enter one
with the numeric buttons 0 – 9 and then press the OK button
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 81
Programming
1
+
4.5 25 5 2.0
-
1
+
(only free program positions are shown/accepted as numeric
entries).
The following information is shown, and the P in the program
number field flashes:
Fig. 37: Programming mode display
Programming mode offers two options for creating new seam
programs:
• Creating a program using keyboard input, p. 82.
• Creating a program using teach-in , p. 84.
5.6.2 Creating a program using keyboard input
Creating a program using keyboard input is done completely
without sewing. All parameters for the seam sections and the
program are entered manually.
To create a program using keyboard input:
1. Create a new program, p. 81.
2. Use
► to switch to the seam section selection.
3. Use to activate the seam section.
The following display is shown, with preset values which can
be specified at technician level.
Fig. 38: Programming mode display
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Programming
4. Set the basic parameters that are explained in the table.
Symbol Meaning
Stitch length for the current seam section
Value range: 00.0– 9.0 [mm]
•Use ◄/► to select the Stitch length parameter
•Use ▲/▼ to change the stitch length
Needle thread tension value (%) of current seam section
Value range: 00 - 99
•Use ◄/► to select the Needle thread tension parameter
•Use ▲/▼ to change the needle thread tension.
Sewing foot pressure
Value range: 01 - 20
•Use ◄/► to select the Sewing foot pressure parameter.
•Use ▲/▼ to change the sewing foot pressure
Stroke height
Value range: 00.0 – 09.0 [mm] (0.5 mm increments)
•Use ◄/► to select the Stroke height parameter
•Use ▲/▼ to change the stroke height
5. Set other parameters for this seam section, p. 85.
6. To set up another seam section, use
▲ on the seam section
display to switch to the next seam section.
7. Use to activate the seam section and set parameters
again as described above.
8. Repeat steps 6 and 7 to define up to 30 seam sections if
necessary.
9. Press the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
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Programming
4.5 25 5 2.01
+
-
5.6.3 Creating a program using Teach-In
Creating a program using Teach-In is done by sewing the seam
sections and manually entering the parameters for the seam
sections and the program.
To create a program using Teach-In:
1. Create a new program, p. 81.
2. Press the Teach-In button.
The following display is shown, with preset values which can
be specified at technician level.
Fig. 39: Programming mode display
0
3. Set the basic parameters that are explained in the table.
Symbol Meaning
Stitch length for the current seam section
Value range: 00.0– 9.0 [mm]
•Use ◄/► to select the Stitch length parameter
•Use ▲/▼ to change the stitch length
Needle thread tension value (%) of current seam section
Value range: 00- 99
•Use ◄/► to select the Needle thread tension parameter
•Use ▲/▼ to change the needle thread tension.
Sewing foot pressure
Value range: 01- 20
•Use ◄/► to select the Sewing foot pressure parameter.
•Use ▲/▼ to change the sewing foot pressure
Stroke height
Value range: 00.0– 09.0 [mm] (0.5 mm increments)
•Use ◄/► to select the Stroke height parameter
•Use ▲/▼ to change the stroke height
4. Press the pedal and complete the seam section up to the
desired position on the material.
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Programming
5. To set other parameters for another seam section, use ▲ to
add a new seam section.
6. Set the basic parameters.
7. Repeat steps 5 and 6 to define up to 30 steps if necessary.
8. Push the pedal fully back.
The program switches to Edit mode.
9. If necessary, set additional parameters for all seam
sections ( p. 85) and complete the selected
program ( p. 87).
10. Press the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
5.6.4 Adjusting parameters for the current seam
section
This menu allows the parameters for the current seam se ction to
be changed. This setting ONLY affects the currently selected seam
section, and NOT the entire program.
To adjust the parameters for the current seam section:
1. Use
◄/►to select the field .
2. Press the OK button.
The submenu opens.
3. Use
▲/▼ to select the desired parameter.
4. Press the OK button to activate or deactivate the parameter
▲/▼ to edit the value and confirm the change by press-
or use
ing the OK button.
Parameters for the current seam section:
Symbol Description
StitchCount
Length of the seam section
0 = Manually step through
> 1 = Number of stitches or length in mm
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 85
Symbol Description
Max. speed
Maximum speed for the seam section.
Seg.End Modes
Set what happens at the end of a seam section when
switching to the next section:
• Stop
Sewing stops – if OFF: no more settings possible,
smooth switch between the seams sections
if ON:
• Thread Trim – Thread cutting
• Needle Up – Needle position
• Foot Lifted – Sewing foot lift
• FL height – Sewing foot lift stroke height
Start Tack
Start bartack, setting identical to Manual mode, p. 57.
End Tack
End bartack, setting identical to Manual mode, p. 60.
Needle Up
Position of the needle when sewing stops on the seam
section.
Programming
Foot lifted
Position of the sewing foot when sewing stops on the
seam section.
FL height
Lifting height of the sewing foot when sewing stops on the
seam section.
Backwards
Backward stitches; when the parameter is activated, the
section is sewn backwards.
Center Guide
Seam middle guide (only on 2-needle machines)
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Programming
Symbol Description
Edge Guide
• Gap
Edge stop (if available); value for the distance between
the needle and the material edge.
5. Exit the submenu using the ESC or ◄ button
The changed values are stored immediately.
6. If necessary, create further seam sections or exit Programming
mode using the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
5.6.5 Adjusting parameters for the selected program
This menu allows the parameters for the current program/seam
program to be changed. This setting affects all seam sections
created in the program.
To adjust the parameters for the selected program:
1. Use
◄/►to select the field .
2. Press the OK button.
The submenu opens.
3. Use
▲/▼ to select the desired parameter.
4. Press the OK button to activate or deactivate the parameter
▲/▼ to edit the value and confirm the change by press-
or use
ing the OK button.
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Parameters for selected program:
Symbol Description
Prog. Name
A program name can be entered using the numeric
buttons:
•Use ◄/► to navigate forwards and backwards
• Use the F button to delete a letter
• Use the OK button to confirm the entry
• Use the ESC button to discard the entry
Add Values(+)
• St.Len.(+)
• F.Stroke(+)
• Thr.Tens.(+)
• Gap (+)
nd
value of the parameters
2
Next Prog.
A subsequent program can be defined.
Thread Clamp
Function active or inactive, if available.
Programming
Bobbin
Setting identical to Manual mode, p. 62.
Info
Setting identical to Manual mode, p. 65.
DailyPieces
Daily piece counter, can be set to count either up or
down.
When the daily piece counter is activated, it must be
reset once after entering a value using the function
in the softkey menu to ensure it counts correctly.
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Programming
4.5 25 5 2.0
-
1
+
+
Symbol Description
PointPos.°
Setting identical to Manual mode, p. 56.
Speed Corr
Setting identical to Manual mode, p. 66.
FabricThickness
If present, setting identical to Manual mode, p. 71.
5. Exit the submenu using the ESC or ◄ button.
The changed values are stored immediately.
6. If necessary, create further seam se ctions or exit Programming
mode using the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
5.6.6 Editing programs
Parameters of already created programs can be adjusted subsequently.
To edit a program:
1. Select the desired program.
2. Press the P button.
The control switches to Edit mode.
The following information is shown, and the P in the program
number field flashes:
Fig. 40: Display in editing mode
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 89
Programming
3. Select the seam section to be changed using with ▲/▼.
The selected seam section is shown in bold in the program
bar.
4. Adjust the basic parameters.
5. Adjust the parameters for the selected seam section, p. 85.
6. Adjust the parameters for the entire program, p. 87.
7. Use to add a new seam section.
8. Use to delete the seam section marked in bold in the
program bar.
9. Exit Edit mode using the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
5.6.7 Copying the program
Only the selected program is copied to a new program number.
To copy a program:
1. Select the desired program.
2. Press the P button.
The P above the program number will flash.
3. Press the softkey menu button.
The softkey menu appears.
Fig. 41: Softkey menu
4. Press the numeric button under .
The following display appears:
90 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Programming
4.5 25 5 2.0
-
1
+
+
Fig. 42: Copying the program
The control displays the next free program number.
5. Press the OK button to lo ad the program number.
OR
Select another program number using
▲/▼ or input a program
number using the numeric buttons 0 – 9.
6. Press the OK button to confirm the program number.
The program number is loaded.
The control switches to Edit mode and the program number
flashes:
Fig. 43: Display after specifying the program number
7. If necessary, make changes to the newly copied program.
8. Press the ESC button.
The program is saved. The machine switches to Automatic
mode and the newly created program is selected.
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Programming
5.6.8 Deleting the program
Only the selected program can be deleted.
To delete a program:
1. Select the desired program.
2. Press the P button.
The P above the program number will flash.
3. Press the softkey menu button.
The softkey menu appears.
Fig. 44: Softkey menu
4. Press the numeric button under .
The selected program is deleted. The program below/above
is selected and can be edited.
5. T o delete further programs, select the program using
repeat from step 3.
6. Press the ESC button to go to Automatic mode.
The machine switches to Automatic mode.
▲/▼ and
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Maintenance
6 Maintenance
WARNING
Risk of injury from sharp parts!
Punctures and cutting possible.
Prior to any maintenance work, switch off the
machine or set the machine to threading mode.
WARNING
Risk of injury from moving parts!
Crushing possible.
Prior to any maintenance work, switch off the
machine or set the machine to threading mode.
This chapter describes maintenance work that needs to be carried
out on a regular basis to extend the service life of the machine
and achieve the desired seam quality.
Advanced maintenance work may only be carried out by qualified
specialists ( Service Instructions).
Maintenance interval
Work to be carried out Operating hours
8 40 160 500
Cleaning
Removing lint and thread remnants
Lubricating
Lubricating the machine head
Lubricating the hook
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 93
Maintenance
Work to be carried out Operating hours
8 40 160 500
Servicing the pneumatic system
Setting the operating pressure
Draining the water condensation
Cleaning the filter element
6.1 Cleaning
WARNING
Risk of injury from flying particles!
Flying particles can enter the eyes, causing
injury.
Wear safety goggles.
Hold the compressed air gun so that the particles
do not fly close to people.
Make sure no particles fly into the oil pan.
NOTICE
Property damage from soiling!
Lint and thread remnants can impair the operation of the
machine.
Clean the machine as described.
94 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Maintenance
④
③
①
②
NOTICE
Property damage from solvent-based cleaners!
Solvent-based cleaners will damage paintwork.
Use only solvent-free substances for cleaning.
Fig. 45: Areas requiring special cleaning
(1) - Area around the needle
(2) - Hook
Areas particularly susceptible to soiling:
• Cutter on the winder for the hook thread (4)
• Area under the throat plate (3)
• Hook (2)
• Area around the needle (1)
Cleaning steps:
1. Switch off the machine at the main switch.
2. Remove any lint and thread remnants using a compressed
air gun or a brush.
(3) - Area under the throat plate
(4) - Cutter on the winder
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 95
Maintenance
6.2 Lubricating
CAUTION
Risk of injury from contact with oil!
Oil can cause a rash if it comes into contact with
skin.
Avoid skin contact with oil.
If oil has come into contact with your skin, wash
the affected areas thoroughly.
NOTICE
Property damage from incorrect oil!
Incorrect oil types can result in damage to the machine.
Only use oil that complies with the data in the instructions.
CAUTION
Risk of environmental damage from oil!
Oil is a pollutant and must not enter the sewage
system or the soil.
Carefully collect up used oil.
Dispose of used oil and oily machine parts in
accordance with national regulations.
The machine is equipped with a central oil-wick lubrication system.
The bearings are supplied from the oil reservoir.
For topping off the oil reservoir, use only lubricating oil DA 10 or
oil of equivalent quality with the following specifications:
2
• Viscosity at 40 °C:10 mm
/s
• Flash point: 150 °C
96 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Maintenance
MAX
MIN
①
②
③
You can order the lubricating oil from our sales offices using the
following part numbers.
Container Part no.
250 ml 9047 000011
1 l 9047 000012
2 l 9047 000013
5 l 9047 000014
6.2.1 Lubricating the machine head
Proper setting
The oil level is between the minimum level marking and the
maximum level marking.
Fig. 46: Lubricating the machine head
(1) - Refill opening
(2) - Maximum level marking
To lubricate the machine head:
1. Check the oil level indicator at the inspection glass every day.
2. If the inspection glass lights up red, the machine is not sufficiently supplied with oil.
3. If the oil level is below the minimum level marking (3): Pour oil
through the refill opening (1) but no higher than the maximum
level marking (2).
(3) - Minimum level marking
Operating Instructions 669 PREMIUM - 00.0 - 11/2016 97
Maintenance
①
6.2.2 Lubricating the hook
The approved oil quantity for hook lubrication is a factory specification.
Proper setting
1. Hold a piece of blotting paper next to the hook.
2. Allow the machine to run without thread and sewing material
for 10 seconds with the sewing feet lifted and at a high speed.
The blotting paper will show a thin strip of oil when sewing is
complete.
Fig. 47: Lubricating the hook
(1) - Screw
To lubricate the hook:
1. Turn the screw(1):
• counterclockwise: more oil is released
• clockwise: less oil is released
Important
The released amount of oil does not change until the operating
time has run a few minutes. Sew for several minutes before you
check the setting again.
98 Operating Instructions 669 PREMIUM - 00.0 - 11/2016
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