Strobel VEB 200-2 User manual

For the professional user
Für den professionellen Anwender
Mechanikeranleitung
Class:
Klasse:
Model:
Ausführung:
Dated:
Stand:
VEB200-2
3
Spezialmaschinen GmbH
Mechanic‘s Instrucons

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
garanert Ihnen die hohe Qualität unserer
Produkte. Qualität, die Vertrauen scha – 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 parcularly high
standard of performance from our company and our machines.
Now you have seled for one of our products. For us this is a
source of encouragement and of obligaon to Jusfy your trust.
If you wish to prot from the performance and eciency of your
Strobel machine as long as possible, exact handling and tho-
rough care is necessary. For this reason we kindly request that
you read the operang instrucons closely.
It provides all the informaon you need for trouble free
operaon.
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

1 MA_VEB200-2_A3_210511_en.doc
Mechanic’s instructions
STROBEL Class VEB200-2
C o n t e n t s
1General notes on safety .............................................................................................................3
2General .......................................................................................................................................5
2.1 Operating instructions ......................................................................................................5
2.2 Class description, serial number and initial basis for description....................................5
2.3 Range of application and intended use............................................................................5
2.4 Technical data ................................................................................................................... 6
2.5 Brief setting instruction ....................................................................................................8
3Hints for repair and settings.......................................................................................................9
3.1 Mounting the stitch plate .................................................................................................9
3.1.1 Removing the stitch plate (Fig. 2).....................................................................10
3.1.2 Remounting the stitch plate (Fig. 2).................................................................10
3.1.3 Setting the stitch plate (Fig. 1)..........................................................................11
3.1.4 Replacing the needle glide plate (Fig. 3) ..........................................................11
3.1.5 Setting the cloth retainers (Fig. 4)....................................................................12
3.2 Needle lever....................................................................................................................13
3.2.1 Mounting (Fig. 5)...............................................................................................13
3.2.2 Setting the needle stroke (Fig. 7) .....................................................................14
3.3 Loop stroke (Fig. 6)..........................................................................................................16
3.3.1 Setting the loop stroke (Fig. 7) .........................................................................16
3.4 Looper .............................................................................................................................17
3.4.1 Removing and remounting the looper (Fig. 7) .................................................17
3.4.2 Removing and remounting the looper shaft (Fig. 7)........................................17
3.4.3 Looper deflection (Fig. 3)..................................................................................17
3.4.4 Setting the looper (Fig. 8) .................................................................................17
3.5 Feed dog (upper feed) (Fig. 10) ......................................................................................19
3.5.1 Setting the feed dog .........................................................................................19
3.6 Feed plates......................................................................................................................20
3.6.1 Setting the feed plates......................................................................................20
3.6.2 Setting the feed plate lifting (Fig. 10)...............................................................20
3.7 Plunger ............................................................................................................................21
3.7.1 Replacing the plunger shafts (Fig. 11) ..............................................................21
3.7.2 Setting the plunger (Fig. 12) .............................................................................22
3.7.3 Setting the cloth support arm (Fig. 11) ............................................................23
3.7.4 Setting the spring initial tension at the spring loaded plungers (Fig. 11)........23

2 MA_VEB200-2_A3_210511_en.doc
3.8 Thread trimmer (Fig. 15).................................................................................................24
3.8.1 Removing and remounting of the thread trimmer drive (Fig. 15)...................24
3.8.2 Adjustment (Fig. 15) .........................................................................................26
3.8.3 Replacing the knife (Fig. 15) .............................................................................27
3.9 Sense of rotation.............................................................................................................27
3.10 Cutting position...............................................................................................................27
3.11 Positions..........................................................................................................................28
3.12 Setting the positions .......................................................................................................31
3.12.1 General notes....................................................................................................31
3.12.2 Setting the reference position..........................................................................31
3.12.3 Setting positions 1 and 2 ..................................................................................32
3.13 Display of the needle positions ......................................................................................33
3.14 Pneumatic lifting.............................................................................................................34
3.14.1 Setting the lifting ..............................................................................................34
3.15 Sewing drive....................................................................................................................34
3.16 Seam lock (Fig. 20) ..........................................................................................................35
3.16.1 Setting the feed dog at the seam lock (Fig. 20)................................................36
4Circuit diagrams........................................................................................................................37
4.1 Mains connection plan (AB611A with/without sewing light gen.) ................................37
4.2 Electric connection plan with seam lock (DC1210-AB611A) ..........................................38
4.3 Pneumatic circuit diagram with pneum. Lifting (Efka DC1210) .....................................39
4.4 Pneumatic construction circuit diagram with pneum. Lifting (Efka DC1210) ................40
4.5 Pneumatic circuit diagram with seam lock (Efka DC1210).............................................41
4.6 Pneumatic construction circuit diagram with seam lock (Efka DC1210) ......................42
4.7 Electric connection diagram –Thread trimmer..............................................................43
5Switchable Functions................................................................................................................44
5.1 DC1210-AB611A Cl. VEB200-2 ........................................................................................44
6Parameter list ...........................................................................................................................45
6.1 DC1210-AB611A Cl. VEB200-2 ........................................................................................45
We reserve the right to make design changes.

3 MA_VEB200-2_A3_210511_en.doc
1General notes on safety
Manuals and additional information can be found on the STROBEL website at:
http://www.strobel.biz
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.
Failure to comply with the following safety instructions can lead to physical injuries
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
bobbin, exchanging sewing tools such as needle, hook, stitch plate, transport
devices, trimming knive 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.

4 MA_VEB200-2_A3_210511_en.doc
13. It is essential that you observe and follow these instructions as well as the
generally valid safety regulations.
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.

5 MA_VEB200-2_A3_210511_en.doc
2General
NOTICE: From version 3 onwards, the machine no longer needs to be lubricated.
2.1 Operating instructions
Any person involved in the installation, operation, maintenance and repair of the
machine must have read and understood the operating instructions and mainly the
safety instructions before starting the machine.
2.2 Class description, serial number and initial basis for description
For side-referenced descriptions, the operating side of the machine is the starting
base.
The class identification (type) as well as serial and model number (after the dash) is
located on the right hand side of the housing.
2.3 Range of application and intended use
Class VEB200-2 is suitable for bluff edging thin fabrics up to approx. 400 grammes.
The Kl.VEB200-2 has a spring-loaded plunger on the left and right. It is also delivered
with a 9.5 mm stitch plate. Both cloth retainers are spring-loaded here and combined
with a knurled screw which limits the cloth retainer lift-off upwards.
The range of applications of the different machines can be extended by exchanging
the variable sewing tools, i.e. those other fabric qualities than the above mentioned
ones can be sewn as well.

6 MA_VEB200-2_A3_210511_en.doc
2.4 Technical data
Empfohlene Nennstichzahl /
Recommended rated speed
1800 min-1
Stichlänge / stitch length
3,0 - 7,0 mm (abhängig vom Nähmaterial /
depend on fabric)
Auslieferzustand / delivery condition 7,0 mm
Obertransport / top feed
Pyramidenverzahnung / pyramid thoothing
Sägeverzahnung / saw thoothing optional
gefederter Drücker links, gefederter Drücker
rechts / spring loaded plunger left, spring
loaded plunger right
Stichplattenöffnung / stitch plate opening
9,5 mm
Stichtiefenregulierung rechts und links /
stitch depth regulation right and left
Stichtiefenanzeige links /
stitch depth display left
digital display optional
Nahtsicherung / seam lock
optional
Nadelsystem / needle system
Nadelstärke / needle size
GROZ-BECKERT 1669 EEO
80/12
Fadenabschneider / thread trimmer
optional
Fadenspannung / thread tension
Faden / thread
Auslieferzustand / delivery condition 10 cN
Polyester, endlos gezwirnt /
polyester continuous filament 200/2
Freiarm / support arm
Durchmesser / diameter 55 mm
Durchgangsraum / arm space
150 mm
Abschwenkbare Arbeitsplatte /
swing away workplate
LED Leuchte / LED sewing lamp

7 MA_VEB200-2_A3_210511_en.doc
Technischer Auslieferzustand / delivery condition:
Riemenscheibendurchmesser Maschine/
machine pulley diameter
dw 71 mm
Motor-Leistung min. / min. motor power
550 W
Keilriemen-Profil / V-belt profile
10 x 6 mm
Zahnriemenscheibe Maschine /
toothed belt pulley/machine
Z = 38
Zahnriemenprofil / toothed belt profile
HTD 5M-9
Stichart / stitch type
Einfaden-Kettenstich-Doppelblindstich Typ 105 /
single thread chain stitch bluff edge blind stitch
type 105
Anschluss pneumatisch / pneumatic connection
6 bar
Luftverbrauch, Mittelwert /
avarage air consumption
abhängig von der Ausstattung /
depending on the equipement
Stellfläche / foot print
0,5 m x 1,1 m
Arbeitsgeräusch / operating noise at 1800 min-1
nach DIN 45635-48-1 KL3
LpAm 70 dB(A)

8 MA_VEB200-2_A3_210511_en.doc
2.5 Brief setting instruction
theoretic needle radius
41.3 mm
left needle guide
41.33 +0.02 mm
needle glide plate
41.30 ±0.01 mm
right needle guide
41.36 +0.02 mm
needle stroke, needle eye to looper finger
1 +0.5 mm
ball pin to needle shaft
2 ±0.5 mm
Slot ball pin
approx. 15°
Looper stroke
19 +0.5 mm
Pressures:
Feed plate left
Feed plate right
Cloth support arm meas. at plunger shaft
12 N
6 N
140 N
Ratchet pressure measured from below
to pusher height:
Ratchet right, limited upwards
Ratchet left, limited upwards
approx. 4 N
approx. 4 N
Feed length
approx. 3 - 7 mm
Lifting between stitch plate and feed
plates
approx. 11 mm
Lifting between needle and plunger
approx. 9 mm
Loop stroke
2.8 mm
Number of spot tacks
2 –4 stitches

9 MA_VEB200-2_A3_210511_en.doc
3Hints for repair and settings
C A U T I O N ! Danger of injury!
Observe safety and operating instructions before realizing any
maintenance and repair works.
Failure to do so may result in heavy bodily injuries.
3.1 Mounting the stitch plate
A T T E N T I O N !
Switch off machine electrically!
Stitch plates are set at works and can be replaced easily as complete kit. When
replacing the needle guide the dimensions have to be checked by means of a gauge as
shown in Fig. 1. After removing the needle lever the gauge is mounted to the needle
shaft and senses the needle guides by turning the handwheel.
Fig. 1

10 MA_VEB200-2_A3_210511_en.doc
3.1.1 Removing the stitch plate (Fig. 2)
- Switch off machine electrically, cloth support arm is lifted.
- Remove needle and needle lever.
- Remove the thread trimmer’s drive unit as described under “3.8.1 Removing and
remounting of the thread trimmer drive (Fig. 15)”or pull the plug only.
- Release stitch plate fastening screws (1) and (2) and remove the complete stitch
plate unit to the front.
Fig. 2
3.1.2 Remounting the stitch plate (Fig. 2)
Install in reverse order. Make sure that both cloth retainers are positioned centrally on
the plungers and that the stitch plate lies horizontally. Push the stitch plate bow
completely upwards until threaded pin (3) fits closely to the needle shaft bush.

11 MA_VEB200-2_A3_210511_en.doc
3.1.3 Setting the stitch plate (Fig. 1)
The theoretic needle radius of 41,3 mm should be 0,03 mm to 0,05 mm larger at the
left needle guide, 0,01 mm smaller to 0,01 mm larger at the needle glide plate and
0,10 mm to 0,12 mm larger at the right needle guide.
The settings should be realized with a gauge. Deviations may deteriorate the sewing
result considerably and may cause damages or pre-mature waste of the sewing tools.
3.1.4 Replacing the needle glide plate (Fig. 3)
Loosen screw (2) to remove the needle glide plate (1). When re-mounting the needle
glide plate make sure that it fits closely to the stitch plate bridge.
Fig. 3

12 MA_VEB200-2_A3_210511_en.doc
3.1.5 Setting the cloth retainers (Fig. 4)
After replacing the stitch plate (1) check if the cloth retainers (2) are placed centrically
on the plungers (3). If necessary, displace the cloth support arm axially.
Fig. 4
Both cloth retainers are spring loaded and combined with a setting screw (4) (Fig. 4)
that limits the cloth retainer to lift up to high.
Basic setting for the pressure of the two cloth retainers about 4N. When setting the
cloth retainer lift, the pressure changes.
This combination is called plunger stopper, but can be used only in combination with
spring loaded plungers.
Plunger stopper and spring loaded plunger prevent that outer seams of the sewing
material are with pitching marks during the sewing across cross-seams and other
thickenings and undesired markings become visible.

13 MA_VEB200-2_A3_210511_en.doc
3.2 Needle lever
3.2.1 Mounting (Fig. 5)
A T T E N T I O N !
Switch off machine electrically!
Release screw (1), swivel the thread take-up (2) and remove the needle lever (3).
When mounting the needle lever make sure that the needle is mounted centrically to
the needle channel and that the needle point is flush with the right hand edge of the
left hand needle guide.
Fig. 5

14 MA_VEB200-2_A3_210511_en.doc
3.2.2 Setting the needle stroke (Fig. 7)
Set the needle stroke in a way that at a loop stroke of 2.8 +0.3 mm the left side of the
needle eye has a distance of approx. 1 mm to the right hand edge of the large looper
finger, the point of the large looper finger being above the needle center (Fig. 6).
To adjust the stroke turn the main shaft until screw (1) is in horizontal position under
the boring in the upper head side. Release the screw with an allan key. The ball bolt
(2) can be adjusted at the rear head side with a slotted screwdriver. Insert the ball bolt
in horizontal position so that the slot of the 6 bolt is placed vertically under the 7
bolt.
Clockwise turning means a larger needle stroke, anticlockwise turning results in a
smaller needle stroke.
The distance ball bolt to needle shaft is 2 ±0.5 mm. Readjust the needle lever as per
“3.2.1 Mounting”after adjusting the needle stroke.
Tighten screw (1). Check looper and needle movements through turning the main
shaft by means of the handwheel.
Fig. 6

15 MA_VEB200-2_A3_210511_en.doc
Fig. 7

16 MA_VEB200-2_A3_210511_en.doc
3.3 Loop stroke (Fig. 6)
The loop stroke is the needle’s way from its right cusp point to the point where the
point of the large looper finger is placed above needle center.
3.3.1 Setting the loop stroke (Fig. 7)
A T T E N T I O N !
Switch off machine electrically!
At factory the loop stroke is set to 2.8 mm (Fig. 6).
Adjustment:
Screw out universal joint : smaller loop stroke
Screw in universal joint : larger loop stroke
Thread pitch = 0.5 mm per turn.
Proceed as follows to turn the looper shaft:
- Release screw (3) and push looper (10) to the front.
- Release nut (4) on the looper shaft.
- Release screws (5) in connecting rod head (6).
- Loosen nut (7) and pull out looper shaft and connecting rod head (6) from
universal joint (8).
Do not release bolt (9)!
The loop stroke is determined by means of a special gauge or calliper gauge.