Strobel 327D User manual

For the professional user
Für den professionellen Anwender
Betriebsanleitung
Class:
Klasse:
Model:
Ausführung:
Dated:
Stand:
327D
2
Operang Instrucons
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
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

Garantiekarte/Warranty Sheet
Boschstraße 16
D-82178 Puchheim
Tel.: [phone]
Fax: [phone]
[email protected]
Maschinenklasse/Machine class:
Serien-Nr./Serial No:
Auftrags-Nr./Order Confirmation No:
Lieferdatum/Delivery Date:
Rechnungs-Nr./Invoice No:
Rechnungsdatum/Invoice Date:
Beanstandung/Complaint:
Datum/Date Unterschrift/Signature:
Bitte nicht vom Kunden ausfüllen/To be filled out by Strobel:
Datum
Bemerkung
EXA:
ETA:
PROD:
EXA:
BH:

1BA_327D_A2_200715_en.doc
118.05.07
118.05.05
118.05.06

2BA_327D_A2_200715_en.doc

3BA_327D_A2_200715_en.doc
Operating Instructions
STROBEL Class 327D
C o n t e n t s
1General notes on safety ...........................................................................................................5
2General .....................................................................................................................................7
2.1 Operating instructions..................................................................................................7
2.2 Class description, serial number and initial basis for description ...............................7
2.3 Range of application and intended use .......................................................................7
2.4 Technical data...............................................................................................................8
3Set-up and commissioning .................................................................................................... 10
3.1 Unpacking of the machine ........................................................................................ 10
3.2 Setting up the machine (Fig. 1 and Fig. 2)................................................................. 10
3.3 Sense of rotation of the machine (Fig. 3).................................................................. 13
3.4 Motor drive via toothed belt..................................................................................... 13
3.4.1 Tensioning the toothed belt (Fig. 4)............................................................ 13
3.4.2 Positions of the machine............................................................................. 14
3.5 Intermediate lifting (Fig. 5)........................................................................................ 15
4Notes on usage...................................................................................................................... 16
4.1 Needles and threads ................................................................................................. 16
4.2 Inserting the needle (Fig. 6) ...................................................................................... 16
4.3 Threading and thread run (Fig. 6) ............................................................................. 17
4.4 Winding up the thread (Fig. 7) .................................................................................. 18
4.4.1 Installing the bobbin and threading the bobbin thread (Fig. 8) ................. 18
4.5 Thread tensioning...................................................................................................... 19
4.5.1 Thread tensioning - needle thread (Fig. 9).................................................. 19
4.5.2 Thread tensioning –bobbin thread (Fig. 10) .............................................. 20
4.6 Adjusting the stitch length (Fig. 7 and Fig. 11).......................................................... 21
4.7 Stitch depth ............................................................................................................... 22
4.7.1 Adjusting the stitch depth (Fig. 2)............................................................... 22
4.7.2 Digital stitch depth display (Fig. 12)............................................................ 23
4.7.3 Changing the battery (Fig. 12)..................................................................... 23
4.8 Plunger stop............................................................................................................... 24
4.8.1 Adjusting the plunger stop (Fig. 13)............................................................ 24
4.9 Sewing drive .............................................................................................................. 25

4BA_327D_A2_200715_en.doc
5Operating the sewing machine ............................................................................................. 26
5.1 Switch-on................................................................................................................... 26
5.2 Inserting and removing the sewing material ............................................................ 27
5.3 Sewing........................................................................................................................ 28
5.3.1 Hemming with blind stitch .......................................................................... 28
5.4 Problems during sewing and troubleshooting.......................................................... 29
5.5 Incorrect stitches....................................................................................................... 31
6Machine maintenance........................................................................................................... 32
Subject to change without prior notice

5BA_327D_A2_200715_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.

6BA_327D_A2_200715_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.

7BA_327D_A2_200715_en.doc
2General
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 descriptions (type), the serial and model number (after the hyphen) can be
found on the rating plate on the back of the machine.
2.3 Range of application and intended use
Two Thread blindstitch lock stitch machine for felling the sleeve lining at the cuff
(minimum circumference of sleeves 24 cm) from the reverse or the facing side with
thread spreader (see optional extras), and for closing lining seams.

8BA_327D_A2_200715_en.doc
2.4 Technical data
Empfohlene Nennstichzahl /
Recommended rated speed
1300 min-1
Stichlänge / stitch length
2,0 - 8,0 mm (abhängig vom Nähmaterial /
depend on fabric) Auslieferzustand /
delivery condition 8,0 mm
Unter-, und differenzierender
Obertransporteur / bottom and differential top
feed
gefederter Taucher / spring loaded plunger
Stichplattenöffnung / Stitch plate opening
8,5 mm
Stichtiefenanzeige / stitch depth display
digital display
Nadelsystem / needle system
Nadelstärke / needle size
GROZ-BECKERT 1717 VRUE
90/14
Fadenspannung / thread tension Faden /
thread
Auslieferzustand / delivery condition 100 cN
Polyester, endlos gezwirnt /
polyester continuous filament 120/2
Mehrweite per Fußpedal ifferenzierbar /
fullness by foot pedal differentiable
Mindestabstand zu angenähten Knöpfen /
minimum distance sewn buttons
8 mm zwischen Knopfkante und Nahtlinie /
8 mm between button edge and seam line
LED Leuchte / LED sewing lamp

9BA_327D_A2_200715_en.doc
Technischer Auslieferzustand / delivery condition:
Motor-Leistung min. / min. motor power
550 W
Zahnriemenscheibe Maschine / toothed belt
pulley/machine
Z = 38
Zahnriemenprofil / toothed belt profile
HTD 5M-9
Stichart / stitch type
Zweifaden-Blind-Doppelsteppstich Typ 317 /
two thread blind lock stitch type 317
Anschluss pneumatisch / pneumatic connection
6 bar
Luftverbrauch, Mittelwert / avarage air
consumption
35 l / h
Stellfläche / foot print
0,5 m x 1,1 m
Arbeitsgeräusch / operating noise at 1300 min-1
nach DIN 45635-48-1 KL3
LpAm 72 dB(A)

10 BA_327D_A2_200715_en.doc
3Set-up and commissioning
3.1 Unpacking of the machine
Strobel machines are supplied either complete as upper part only.
The cotton stand and another machine accessories are located in the packaging.
Prior to disposing of the packing material it must be carefully checked whether all
accessories parts have been unpacked.
3.2 Setting up the machine (Fig. 1 and Fig. 2)
C A U T I O N ! Danger of injury!
Due to pulling in of parts of clothing or hair as well as danger of
crushing of fingers!
The machine must not be operated without a guard for the belt
for the upper part and for the motor.
The upper part of the table plate must be provided with bores according to the
drawing.
Frame and pedals as well as electrical connections must be mounted according to the
printed circuit.
Screw on the motor. The electrical connection must be made according to the circuit
diagram in the online manuals.
Screw the upper part to the table plate. (Fig. 2)
The bolts (1) (49 mm left), (2) (43 mm right) and the pressure spring (3) are enclosed
with the machine accessories and must be fitted as shown in Fig. 2.
The pedal rod system must be suspended according to Fig. 1.
Push on the knee lever and secure with knurled screw.

11 BA_327D_A2_200715_en.doc
Fig. 1

12 BA_327D_A2_200715_en.doc
The cotton stand is mounted at the back on the right on the table plate after assembly
of the individual parts. (Fig. 1)
Check all screws at the frame for tight fit and retighten if necessary.
Mount the position transmitter and adjust corresponding to point “3.4.2 Positions of
the machine“.
A T T E N T I O N !
Prior to commissioning the machine it must be checked whether
the electric connection data on the type plate of the motor,
especially the network voltage and the frequency, are according
to the data of your current network.
A T T E N T I O N !
The machine must be oiled before first start. The maintenance
instructions according to the operating instructions must be
followed!
Fig. 2

13 BA_327D_A2_200715_en.doc
3.3 Sense of rotation of the machine (Fig. 3)
The correct rotation of the hand wheel is clockwise when looking at it from the front.
Fig. 3
3.4 Motor drive via toothed belt
3.4.1 Tensioning the toothed belt (Fig. 4)
C A U T I O N ! Danger of injury!
To check the tension of the toothed belt, switch off the machine
electrically, pull the mains plug and ensure the machine has
actually stopped by pressing the motor pedal.
The machine must not be operated without a belt guard for the
motor.
The tension of the toothed belt should not be too great. Slight thumb pressure should
be able to push the belt through by approx. 5 mm.
A too little or too great toothed belt tension can deteriorate the positioning of the
machine and therefore impair the function sequence.
Tensioning the toothed belt (Fig. 4):
- Release upper and lower retaining screw (1), (2) at the machine upper part.
- Pull out the motor slightly and tighten the lower retaining screw (2) slightly.
- Tension the toothed belt by swivelling the motor.
- Retighten the upper and lower retaining screw (1), (2).

14 BA_327D_A2_200715_en.doc
Fig. 4
3.4.2 Positions of the machine
C A U T I O N ! Danger of injury!
Danger of pulling in parts of clothing and of hair and danger of
crushing fingers and stitching fingers with needles!
When checking positions with switched-on machine keep fingers
and hands away from moving parts.
Machine with or without pneumatic:
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:
The needle position needs to be set in such a way that when the machine is at
standstill and the lifting is open the tip of the needle points in the direction of
the right stitch and the plunger, feed dog, and presser plate are at one level (the
position is located at about 8 mm after the upper needle turning point).
Notes for sewing drives which have two needle positions:
The needle position mentioned above is position 2 at the sewing drive. The
position 1 at the sewing drive should be set in such a way that when the
machine is at standstill the tip of the needle stands about
3 mm in the direction of the left stitch after the lower needle turning point.

15 BA_327D_A2_200715_en.doc
3.5 Intermediate lifting (Fig. 5)
If an intermediate lifting with the knee lever should become necessary with attached
pneumatic venting, it can be mounted on the screw (1) in its usual position.
Fig. 5

16 BA_327D_A2_200715_en.doc
4Notes on usage
4.1 Needles and threads
By selecting the most suitable needles and threads for the relevant sewing material
one can influence the sewing quality decisively.
Only tested GROZ-BECKERT needle system 1717 VRUE should be used.
The machine is supplied with needles of thickness 90/14.
NOTE: An intact needle is of decisive importance for a good initial stitch.
Bent needle points, which can in part only be visible under a
magnifying glass, impair the sewing result.
Therefore, exchange your needles in good time!
We recommend endless twined polyester threads with a thickness of 120/2. They are
to be preferred to a spun thread, due to their high strength and good sliding ability at
low thread volume.
G u a r a n t e e d r e m a r k !
This machine has been set and sewn off with genuine GROZ-
BECKERT needles.
No guarantee can be granted if the settings are modified for
using different needle types.
4.2 Inserting the needle (Fig. 6)
C A U T I O N ! Danger of injury!
Before replacing the needle, switch off the machine electrically,
and depress the motor switch pedal to make sure that the
machine is truly switched off.
Otherwise there is a danger of injury from crushing and needle
punctures.
Due to the bent shape of the needle the position in the needle lever is given. Care
must only be taken that the needle piston is pushed in the slot of the needle lever up
to the stop and that the needle clamping plate (1) is tightened with the screw (2).