Strobel VEB100-1 User manual

For the professional user
Für den professionellen Anwender
Betriebsanleitung
Class:
Klasse:
Dated:
Stand:
VEB100-1 Ausf. 3
VEB100-2 Ausf. 3
VEB100-2W Ausf. 3
VEB100-4 Ausf. 1
VEB100-5 Ausf. 1
Operating Instructions
Spezialmaschinen GmbH

Im Zeichen der Qualität
ou nd the Strobel trademark on every Strobel
machine leaving our works. And with good reason.
This symbol is a guarantee of the high quality of
our products. Quality which creates trust – trust
in our technology, our service and, not least of all,
in our good name.
ie nden die Strobel-Schutzmarke auf jeder
Strobel-Maschine, die unser Werk verlässt.
Und das aus gutem Grund. Denn dieses Zeichen
garantiert Ihnen die hohe Qualität unserer
Produkte. Qualität, die Vertrauen schafft – in unsere
Technik, unseren Service und nicht zuletzt in unseren
guten Namen.
S
Y
The sign of quality

trobel clients know that they can expect a particularly
high standard of performance from our company and our
machines. Now you have settled for one of our products.
For us this is a source of encouragement and of obligation
to Justify your trust.
If you wish to prot from the performance and efciency of
your Strobel machine as long as possible, exact handling
and thorough care is necessary. For this reason we kindly
request that you read the operating instructions closely.
It provides all the information you need for trouble free
operation.
And if you do happen to need a spare part the enclosed
spare parts list gives a complete overview. It is clearly
classied according to components so that you can nd the
required part quickly and easily. In order to avoid errors we
request you to quote machine class, machine number and
part number completely on your spare part order.
We wish you lots of success in your work with your new
Strobel machine.
S
A decision with future
Spezialmaschinen GmbH

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For under table assembly

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Operating instructions
VEB100-1, -2, -2W, -4, -5
Table of contents
1General notes on safety ..............................................................................................5
2General notes..............................................................................................................7
2.1 Operating instructions.........................................................................................7
2.2 Class designations, machine number and initial basis for descriptions...............7
2.3 Applications of the machine................................................................................7
2.4 Technical data of machine..................................................................................8
3Setup and installation..................................................................................................9
3.1 Unpacking the machine ......................................................................................9
3.2 Setting up the machine.......................................................................................9
3.3 Direction of rotation on machine .......................................................................11
3.4 Motor drive via V-belts ......................................................................................11
3.4.1 Tensioning the V-belt .............................................................................11
3.4.2 Positions of the machine ........................................................................12
3.5 Motor drive using tooth belts.............................................................................15
3.5.1 Tension of toothed belt (Fig. 5)...............................................................15
3.5.2 Machine positions...................................................................................16
4Notes on usage.........................................................................................................17
4.1 Needles and threads.........................................................................................17
4.2 Inserting the needles.........................................................................................17
4.3 Threading and thread insertion.........................................................................19
4.4 Thread tension..................................................................................................20
4.5 Thread take-up lever.........................................................................................20
4.6 Stitch depth control...........................................................................................20
4.6.1 Adjusting the stitch depth......................................................................20
4.7 Cloth retainer (Fig. 9)........................................................................................21
4.7.1 Setting the plunger limit stop for sewing over cross seams....................23
4.7.2 Setting the automatic plunger.................................................................23
4.7.3 Setting the cloth retainer Cl. VEB100-4..................................................24
4.8 Sewing material transport .................................................................................25
4.8.1 Adjusting the stitch length.......................................................................25
4.8.2 Adjusting the upper feed dog..................................................................25
4.9 Interval (Cl. VEB100-1, -2, -2W, -4)..................................................................26
4.9.1 Activate and adjusting the interval..........................................................26

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4.10 Motor.................................................................................................................26
4.11 Seam lock (version RF).....................................................................................27
4.11.1General...................................................................................................27
4.11.2Switching on the seam lock....................................................................27
4.11.3Seam lock...............................................................................................27
4.11.4Thread tension at seam lock ..................................................................28
4.11.5Feed dog at seam lock...........................................................................28
4.11.6Plunger lowering at seam lock................................................................28
4.11.7Switching off the seam lock....................................................................28
5Operating the machine..............................................................................................29
5.1 Switching on......................................................................................................29
5.2 Placing and removing the fabric - sewing process............................................29
5.3 Sewing..............................................................................................................30
5.3.1 Seams with blind stitches.......................................................................31
5.3.2 Sewing with folder..................................................................................32
5.3.2.1 Setting the folder........................................................................33
5.3.2.2 Replacing the folder...................................................................35
5.3.2.3 Hemming with folder (Cl.VEB100-5)..........................................35
5.3.2.4 Seaming with roll seamer (Cl. VEB100-4) .................................36
5.3.3 Attaching the trouser waistband lining (Fig. 17)......................................37
5.3.4 Attaching facings....................................................................................37
5.4 Sewing problems and troubleshooting..............................................................38
6Servicing the machine...............................................................................................41
7Variable sewing tools ................................................................................................41
8Optional extras..........................................................................................................47
8.1 Thread trimmer .................................................................................................47
8.2 Hemmer............................................................................................................47
8.3 Digital display 392.0637....................................................................................47
8.4 Pneumatic lifting................................................................................................47
8.5 Seam lock.........................................................................................................47
8.6 Compact drive...................................................................................................47
8.7 Stand set...........................................................................................................47
Subject to change without prior notice

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1 Every person in charge of setting up, operating, servicing and repairing the
machine must first read and understand the operating instructions and
particularly the safety instructions before starting up the machine.
General notes on safety
Failure to comply with the following safety instructions can lead to bodily
injury or damage to the machine.
1. The machine must only be operated by persons familiar with the relevant
operating instructions and who have been instructed accordingly.
2. Before commissioning also read the notes on safety and the operating
instructions of the sewing drive manufacturer.
3. Only use the machine in the intended manner and never without the
provided guards. Always observe the pertinent safety regulations.
4. Switch off the main switch or pull the power plug for threading, changing
the reels, exchanging sewing tools such as needle, gripper, needle plate,
transport devices, possibly cutter and cutting block, for cleaning and when
leaving the workplace as well as for maintenance.
5. General maintenance tasks may be carried out only by properly trained
persons in accordance with the operating instructions.
6. Repair work, retrofitting and maintenance may be carried out only by
technicians or specially trained personnel.
7. When servicing or repairing pneumatic equipment, the machine must be
disconnected from the pneumatic supply. Exceptions are only allowed for
adjustment work and tests of functionality performed by specially trained
technicians.
8. Only specially qualified technicians may work on the electrical equipment.
9. It is forbidden to work on electrically live components! Exemptions are
covered by the EN50110 (DIN VDE0105) regulations.
10. Any retrofitting or alterations to the machine may only be performed under
strict compliance with all pertinent safety regulations.
11. Only use our approved spare parts when servicing and/or repairing the
machine.
12. It is forbidden to operate the sewing head until it is determined that the
entire sewing unit complies with EU provisions.
13. It is essential that you observe and follow these instructions as well as the
generally valid safety regulations.

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14. Warning instructions given in the operating instructions that pertain to
especially dangerous parts of the machine must be indicated at these
positions using a safety symbol.
Warning instructions given in the operating instructions that pertain to
special injury hazards for operating personnel or technicians must be
indicated at these positions using a safety symbol.

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2
2.1
General notes
Every person in charge of setting up, operating, servicing and repairing the
machine must first read and understand the operating instructions and
particularly the safety instructions before starting up the machine.
Operating instructions
2.2
The operating side of the machine is the initial basis for left/right descriptions.
Class designations, machine number and initial basis for
descriptions
The class designation (type) and machine/model numbers are fastened to the
rear of the machine case.
2.3
Class VEB100-1 are mainly suitable for blind stitching thin woven and knitted
fabrics.
Applications of the machine
Class VEB100-2 are universal hemming machines for thin and medium weight
material with cross seams.
Class VEB100-2W is suitable for attaching waistbands linings on trousers, also
for waistbands with already closed belt loops attached.
Class VEB100-4 serves specifically for uniform, delicate rolling and sewing of
the edges on skirts, dresses, blouses, silk scarves, pochettes, etc. made of
thinnest, thin and medium fabrics.
The roll seam width can be varied by exchanging the seamer size.
Class VEB100-5 is suitable for attaching the folded side back and centre back
seams of half-lined sack coats. 6 different folder sizes are available.
Exchanging the variable sewing tools, i.e., can extend the range of applications
of the different machines that other fabric qualities than the above mentioned
ones could be sewn as well.
Variable sewing tools please see point 7.

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2.4
Recommended rated speed:
Technical data of machine
Cl. VEB100-2, -2W 2200 min-1
Cl. VEB100-1, -4, -5 1800 min-1
Machine pulley diameter DW 80 mm
Min. motor power 550 W
V-belt profile 10 x 6 mm
Toothed belt pulley/machine Z=38
Toothed belt profile HTD 5M-9
Stitch length Cl. VEB100-1,-2, -2W,-5 5–8 mm
(depend on fabric)
Cl. VEB100-4 2 - 5 mm
(depend on fabric)
Stitch type Single thread-chain stitch-blind stitch
Stitch type 103
Interval: Cl. VEB100-1,-2, -2W,-4 1:2 shiftable
Needle system GROZ-BECKERT 1669 EEO
Needle size Cl. VEB100-1, -2, -5 80
Cl. VEB100-2W 90
Cl. VEB100-4 70
Thread polyester continuous filament
Thread size Cl. VEB100-1, -2, -2W, -5 120/2
Cl. VEB100-4 200/2
Pneumatic connection 6 bar
Average air consumption depending on the equipement
Required space 0.5 m x 1.1 m
Noise:
Average noise level at a speed of
n = 1800 min-1 Cl. VEB100-1, -4, -5: LpAm 70 dB(A)
n = 2200 min-1 Cl. VEB100-2, -2W: LpAm 71 dB(A)
Noise test according to DIN 45635-48-1 KL3

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3
3.1
Setup and installation
Strobel machines are supplied either as complete units with head, stand and
motor, or head with motor only, or the head only.
Unpacking the machine
Reel stand, rods and other accessories are packed into the packing.
Make sure that all accessories have been unpacked before throwing away any
packing material.
3.2 Setting up the machine
CAUTION! Danger of injury!
Entanglement hazard for clothing or hair and
Danger of finger injuries!
Never operate the machine without the belt guards for the
upper part and motor.
If the machine head is supplied without stand and motor first make the borings
into the table top as shown in the drawing. Mount rods and treadles and electric
connections according to the connecting diagram.
Mount the motor. Electric connection as per connecting diagram shown in the
motor's operating instructions.
The upper component must be fastened to the provided rubber plate on the
table top. The belt guard must be installed after inserting the V-belt.
Mount the V-belt and tense it according to “3.4.1 Tensioning the V-belt“.
Mount the belt guard.
Mount the lifting and motor operating rods.
Using a compact motor means to assemble the control box and speed controller
under the table. Also the operating rod between speed controller and pedal has
to be connected.
After assembling the single parts of the reel stand mount it to the right hand side
of the tabletop.
Make sure that all screws on the stand are tight and retighten them, if
necessary.
Mount the synchronizer and set it as described under “3.4.2 Positions of the
machine“.

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CAUTION!Danger of injury!
Before starting the machine, check that the electrical
specifications given on the type plate of the motor,
particular grid voltage and frequency, are appropriate for
your electric system.
Any anti-rust substances, such as vaseline or similar, must be carefully
removed from the sewing tools before starting up the machine.

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3.3
When facing the handwheel, turn it in a clockwise direction.
Direction of rotation on machine
3.4
3.4.1
Motor drive via V-belts
Tensioning the V-belt
Caution! Danger of injury!
When checking the belt tension, switch off the machine at
the mains. Do not operate the machine without the belt
guard. Otherwise there is a DANGER of crushing
fingers, of injuries to the body and of pulling in parts of
clothing.
The tensioning of the V-belt is carried out by swivelling the motor underneath
the table plate after releasing the retaining nut with SW 24, (1) in Fig. 1.
The V-belt must not be tensioned too much, especially with the stop motor. You
should be able to compress it with light thumb pressure by about 2 cm.
Too little V-belt tensioning can impair the positioning of the machine and
therefore impair the function sequence.
Fig. 1

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3.4.2 Positions of the machine
Caution! Danger of injury!
Danger of crushing fingers and needle through stitching as
well as pulling in of parts of clothing.
Keep fingers and hands away from moving parts when
setting the position generator and checking the positions
with switched-on machine.
General:
Stop motors require a position generator, which takes the mechanical setting of
the machine from the main screw and transmits this to the control of the motor.
With this, for instance, the thread cutter can always be electrically approached
in exactly the same needle looper position. (Fig. 2)
The correct position of the position generator to the flange is marked with a spot
of paint.
To adjust or to remove, release the two clamping screws (1), Fig. 2 tighten
these firmly prior to commissioning.
Fig. 2
With positioning with plunger reset, the motor reverses after thread cutting for a
certain value, to facilitate the insertion of the sewing matter. This does not affect
the setting of the position generator.

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Machine with or without thread cutter:
The machine requires a needle position and, depending on the sewing drive,
possibly also a reference position.
Reference position (Fig. 3):
The reference position must be set in such a way, that the point of the
needle in the direction of the insertion stitch closes with the right (inner)
edge of the needle slide plate.
Fig. 3

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Needle position (when stopped within and outside of the stitch (Fig. 4))
(when using a thread trimmer):
Adjust the needle position so that when the machine is switched off, the
hook of the thread blade can reliably catch the thread loop above the
looper without touching it.
In conclusion, check this by manually actuating the thread trimmer.
Fig. 4
Notes for sewing drives with more than needle positions:
The needle position given above is suitable for sewing at position 2.
It is very important to set position 1 in accordance with the operating
instructions pertaining to the chosen mode of sewing.

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3.5
3.5.1
Motor drive using tooth belts
Tension of toothed belt (Fig. 5)
CAUTION! Danger of injury!
Switch off the machine at the mains when checking the
belt tension. Do not operate the machine without belt
guard. Otherwise DANGER of crushing fingers, of injuries
to the body or of pulling in of part of clothing.
The toothed belt should not be tensioned too much. You should be able to push
through it with light thumb pressure by about 5 mm.
Too little or too tight toothed belt tensioning can impair the positioning of the
machine and therefore impair the function sequence.
Tensioning the toothed belt (Fig. 5):
-Release the upper and the bottom retaining screw (1), (2) at the upper part
of the machine.
-Pull out the motor slightly and tighten the bottom retaining screw (2)
slightly.
-Tension the toothed belt by swivelling the motor.
-Tighten the upper and the bottom retaining screw (1), (2) again.
Fig. 5

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3.5.2 Machine positions
CAUTION!Danger of injury!
Entanglement hazard for clothing or hair and danger of
finger injuries and needle punctures! When checking the
positions while the machine is turned on, keep your
fingers and hands away from moving parts.
Machine with or without thread trimmer:
The machine requires a needle position and depending on the sewing drive,
possibly also a reference position.
Reference position:
The reference position must be set in such a way, that the point of the
needle in direction of the insertion stitch closes with the right (inner) edge
of the needle slide plate.
Needle position (with stop in and outside the seam (Fig. 4)):
The needle position must be set in such a way, that when the machine is
stopped, the hook of the thread knife catches the thread loop lying over
the looper securely without touching the looper.
Notes for sewing drives which have two needle positions:
The above mentioned needle position is position 2 at the sewing drive.
It is essential that position 1 is set with consultation of the operating
instructions of the sewing drive
Needle position (when stopped within the stitch):
The needle position must be set so that the tip of the needle closes
against the right edge of the needle slide plate facing towards the outward
stitch.
At the same time, the thread loop lies under tension across the looper.
The needle position is position 1 at the sewing drive.
Fig. 6