Maier 220, 221, 240, 241, 251 Operating Instructions Manual

Bedienungsanleitung

Operating instructions

Manuel d´instructions

Instrucciones de servicio

220, 221, 240, 241, 251, 261,

271, 281, 252, 352

2

Contents
Index

GB

Manufacturer's Declaration…………………………………………………………………………………………………...3

General notes .......................................................................................................................................................... 5

Directives ............................................................................................................................................................ 5

Safety notes ........................................................................................................................................................ 5

Safety symbols .................................................................................................................................................... 6

Items requiring the Operator's special attention .................................................................................................. 6

Operators and specialist staff .............................................................................................................................. 7

Operators ............................................................................................................................................................ 7

Specialist staff ..................................................................................................................................................... 7

Hazard warnings ................................................................................................................................................. 8

Transport, packaging and storage ....................................................................................................................... 8

Installation and initial commissioning .................................................................................................................. 8

Care of the machine ............................................................................................................................................ 8

Disposal of the machine ...................................................................................................................................... 9

Assembly of the machine ...................................................................................................................................... 10

Installation instructions ................................................................ ................................................................ ...... 10

Mounting instructions for the mini-motor 46 attachment kit ............................................................................... 11

Classes 221 /241/ 251 / 261 /271 ................................................................................................................. 11

Classes 252/352 ........................................................................................................................................... 11

Automatic frame drop device............................................................................................................................. 12

Accessories: ...................................................................................................................................................... 12

Sewing machine table tops ............................................................................................................................... 13

Operation ............................................................................................................................................................... 15

Threading .......................................................................................................................................................... 15

Machine without thread cutter (Fig. 1) .......................................................................................................... 15

Machine with thread cutter (Fig. 2) ............................................................................................................... 15

Inserting the cloth and sewing ........................................................................................................................... 16

Blind stitch hems on the hem edge ................................................................ ............................................... 16

Blind stitch hems on the cloth tuck ................................................................................................................ 16

Setting the stitch depth (penetration) ................................................................................................................ 18

Classes 220, 221, 240, 241, 251, 261, 271 .................................................................................................. 18

Classes 252 and 352 .................................................................................................................................... 19

Setting the cloth retainers for classes 251, 261, 271, 281, 252, 352 ................................................................. 21

Setting the helical spring ................................................................................................................................... 21

Fitting the needle ............................................................................................................................................... 22

Checking the needle motion ......................................................................................................................... 22

Skip stitch device .............................................................................................................................................. 23

Instructions for the mechanic ................................................................................................................................. 24

Setting the stitch plate ....................................................................................................................................... 24

Basic setting of the needle movement .............................................................................................................. 25

Fitting and checking the looper ......................................................................................................................... 25

Adjusting the looper .......................................................................................................................................... 26

Adjusting the height of the looper ................................................................................................................. 26

Adjusting the lateral position of the looper .................................................................................................... 26

Adjusting the looper stroke ........................................................................................................................... 27

Setting the thread take-up cam ......................................................................................................................... 27

Stitch length adjustment ................................ ................................ .................................................................... 28

Plunger (rib shaft) adjustment ........................................................................................................................... 29

Radial position .............................................................................................................................................. 29

Axial position ................................................................................................................................................. 29

Play ............................................................................................................................................................... 30

Setting the plunger (rib shaft) timing ............................................................................................................. 30

Plunger (rib shaft) skip stitch timing .............................................................................................................. 30

Feed dog adjustment ........................................................................................................................................ 31

Sewing faults and how to remedy them ............................................................................................................ 32

Sewing tools .......................................................................................................................................................... 33

Technical data ....................................................................................................................................................... 34

3

D

Herstellererklärung

Im Sinne der EG-Maschinenrichtlinie
89/392/EWG Anhang II B
Hiermit erklären wir, dass die Bauart der MAIER­Blindstichnähmaschine (Nähmaschinenoberteil)
Klasse und Seriennr. (siehe Typenschild)
zum Einbau in eine Näheinheit oder Nähanlage
bestimmt ist und dass ihre Inbetriebnahme solange
untersagt ist, bis festgestellt wurde, dass die
Näheinheit oder Nähanlage, in die dieses
Nähmaschinenoberteil eingebaut werden soll, den
Bestimmungen der EG-Maschinenrichtlinie entspricht.
Angewendete harmonisierte Normen, insbesondere:
EN 292-1, EN 292-2, EN 60204-3-1

EG-Konfirmitätserklärung

Im Sinne der EG-Maschinenrichtlinie
89/392/EWG Anhang II A
Hiermit erklären wir, dass die Bauart der Näheinheit
bzw. –anlage MAIER-Blindstichnähmaschine
Klasse und Seriennr. (siehe Typenschild) folgenden
einschlägigen Bestimmungen entspricht:
EG-Maschinenrichtlinie 89/392/EWG, zuletzt geändert
durch 93/44/EWG, Anhang I Nr. 1
EG-Niederspannungsrichtlinie 73/23/EWG
EG-Funktionsstörungsrichtlinie 87/308/EWG

Angewendete harmonisierte Normen, insbesondere:
EN 292-1, EN 292-2, EN 60204-3-1

GB

Manufacturer´s Declaration

In accordance with the EC Machinery Directive
89/392/EC, Annex II B
We hereby declare that the MAIER-Blindstitch Sewing
Machine (sewing machine head)
Class and Serial No. see rating plate, must be
incorporated into a sewing unit or sewing system and
that it must not be put into service until the sewing
unit or sewing system into which this sewing machine
is to be incorporated has been declared in conformity
with the provisions of the EC Machinery Directive.
Applied harmonised standards, in particular:
EN 292-1, EN 292-2, EN 60204-3-1

EC Conformity Declaration

In accordance with the EC Machinery Directive
89/392/EC, Annex II A
We hereby declare that the sewing unit or sewing
system MAIER-Blindstitch Sewing Machine
Class and Serial No. see rating plate, complete with
sewing stand and motor (see rating plate) complies
with the following applicable regulations:
EC Machinery Directive 89/392/EEC, last amended by
93/44/EEC, Annex I No. 1
EC Low Voltage Directive 73/23/EEC
EC Radio Frequency Interference Directive
87/308/EEC
Applied harmonised standards, in particular:
EN 292-1, EN 292-2, EN 60204-3-1

F

Declaration du fabricant

au sens de la directive CE sur les machines
89/392/CEE, annexe II B
Nous déclarons que la tête couseuse de la MAIER­Machine à coudre à points invisibles (tête couseuse)
Classe et no. de série voir plaque est destinée à être
incorporée dans une unité ou une installation de
couture et que sa mise en service est interdite jusqu’à
ce que la conformité de cette unité ou de cette
installation de couture aux dispositions de la directive
CE sur les machines ait été constatée.
Normes appliquées après harmonisation, notament:
EN 292-1, EN 292-2, EN 60204-3-1

Declaration de Conformite CE

au sens de la directive CE sur les machines
89/392/CEE, annexe II A

Nous déclarons la conformité de l’unité ou

l’installation de couture MAIER-Machine à coudre à

points invisibles Classe et no. de série voir plaque
equipé de table à coudre et moteur (voir plaque) aux
prescriptions correspondentes ci-après:
directive CE sur les machines 89/392/CEE, dernière
actualisation
effectué par 93/44/CEE, annexe I no. 1
directive CE sur la basse tension 73/23/CEE
directive CE sur l’interference radio 87/308/CEE
Normes appliquées après harmonisation, notament:
EN 292-1, EN 292-2, EN 60204-3-1

E

Declaratión del fabricante

de conformidad con la directiva CE sobre máquinas
89/392/CEE, Anexo II B
Por la presente declaramos que el tipo de Máquina
de puntada invisible MAIER (parte superior de
máquina) Clase y número de serie vease placa
indicadora está destinada a ser montada en una
unidad de costura o instalación de costura, debiendo
comprobarse ants de su montaje que la unidad de
costura o instalación de costura en la que dicho
cabezal debe instalarse, cumple con las
disposiciones de la Directiva sobre máquinas CE.
Normas armonizadas utilizadas, especialmente:
EN 292-1, EN 292-2, EN 60204-3-1

Declaratión de conformidad

de conformidad con la directiva CE sobre máquinas
89/392/CEE, Anexo II A
Por la presente declaramos que el tipo de unidad de
costura e instalación de costura de Máquina de
puntada invisible MAIER Clase y número de serie
vease placa indicadora compl. con mesa de coser y
motor (vease placa indicadora) corresponde a las
disposiciones siguientes:
directiva CE sobre máquinas 89/392/CEE, modificada
últimamente por 93/44/CEE, Anexo I No. 1
directiva CE sobre baja tensión 73/23/CEE
directiva CE sobre radio interferencia 87/308/CEE
Normas armonizadas utilizadas, especialmente:
EN 292-1, EN 292-2, EN 60204-3-1

4

With this machine, you have acquired a user-friendly, universal and robust high­performance blind stitch sewing machine. All important information relating to working
with this machine and the various setting possibilities is provided on the following
pages. If you need further information, or have any difficulties whatsoever, please
contact your trusted dealer. Of course, apart from this, we - as the manufacturer - are
ready to answer your questions at any time, and to help you with any problems you
may have. In this case, please write direct to us or telephone us.

Maier-Unitas GmbH
Maschinenfabrik
Postfach 1130
D-73253 Köngen – Germany
Tel.: 0 70 24 / 97 02 0
Fax: 0 70 24 / 97 02 10
E-mail: [e-mail]
Internet: www.maier-unitas.de

5

General notes

Directives

The machine has been built in accordance with the European regulations stated in the
manufacturer's declaration and conformity declaration.
In addition to these operating instructions, you must take account of all generally
applicable statutory and other regulations and other statutory provisions – including
those of the Operator's country - as well as the applicable environmental protection
regulations. The locally applicable regulations of the trade association or other
supervisory body must always be observed.

Safety notes

The machine must only be operated in full knowledge of the associated operating

instructions and must only be operated by persons with appropriate training.

Always read the safety notes and the motor manufacturer's operating instructions

before commissioning the machine!
The hazard and safety warnings fitted on the machine must be observed!
The machine must only be used for the purpose intended and must not be operated

without the associated safety devices. All applicable safety regulations must be

observed when operating the machine.
When sewing (gauge) parts such as needle, stitch plate, for example, are exchanged,

during threading, when leaving the workplace and during maintenance work, the

machine must be isolated from the mains supply by switching off the main switch or

pulling out the mains plug.
Daily maintenance work must only be carried out by appropriately trained persons!
Repairs and special maintenance work must only be carried out by specialist staff or

by appropriately trained persons!
Work on electrical equipment must only be carried out by specialist staffs who are

qualified for this type of work!

Work on live parts and devices is not permitted, except as specified in regulations EN

50110!
Conversions or changes to the machine must only be made taking into account all

applicable safety regulations!

For repairs, only spare parts approved by us must be used! We must expressly point

out that spare parts and accessories not supplied by us are also not checked and

approved by us. As a result, fitting and/or use of such products can adversely modify

the specified design characteristics of the machine. We accept no liability for damage

caused by the use of non-original parts.

6

Safety symbols

Danger spot!
Items requiring special attention.

Danger of injury to operators or specialist staff!

Attention! Never work without finger guards and protective devices!
Switch off main switch before threading, changing needles, cleaning
etc.

Items requiring the Operator's special attention

These operating instructions form part of the machine and must be available for

operators at all times. The operating instructions must be read before the initial

commissioning.
Operators and specialist staff must be given instruction on the machine's protective

devices and on safe working methods.
The Operator has a duty to ensure that the machine is only operated in perfect

condition.
The Operator must ensure that no safety devices are removed or disabled.
The Operator must ensure that only authorised persons work on the machine.

For more information, please enquire at your authorised dealer.

7

Operators and specialist staff

Operators

Operators are the persons who are responsible for preparing, operating and cleaning
the machine, and for troubleshooting in the sewing zone.

Operators have a duty to observe the following items:

The safety notes specified in the operating instructions must be observed during all

work!

No method of working must be used that affects the safety of the machine!
Close-fitting clothing must be worn. No jewellery, such as chains, necklaces and

rings, must be worn!

It must be ensured that only authorised persons stay in the danger zone of the

machine!

Any changes occurring on the machine that affect safety must be notified to the

Operator immediately!

Specialist staff

Specialist staff means persons with electrical/electronic and/or mechanical technical
training. They are responsible for lubrication, maintenance, repair and adjustment of
the machine.

Specialist staff have a duty to observe the following items:

The safety notes specified in the operating instructions must be observed during all

work!
Before starting work and before any adjustment or repair work, the main switch must

be switched off and locked off to prevent reclosure!
Work on electrical equipment must only be carried out by specialist staff who are

qualified for this type of work.

No work must be carried out on live parts and devices, except as specified in

regulations EN 50110!
Protective covers must be refitted after repair and maintenance work!

8

Hazard warnings

When the machine is in operation, a 1 m working area must be kept clear in front of

and behind the machine, so that unhindered access is possible at any time.

No objects must be left lying on the table during setup and adjustment of the

machine! The objects could be clamped or thrown out. Risk of injury due to parts

flying about.
Do not operate the machine without wearing eye protection!

Do not operate machines without belt guards! Risk of injury due to the drive belts!
The machines are used to produce blind stitches in industrial sewing applications.

Any use not by approved by the manufacturer is considered to be incorrect usage!

The manufacturer accepts no liability for damage resulting from incorrect usage!

Correct use also includes compliance with the operation, maintenance, adjustment

and repair measures specified by the manufacturer!

Transport, packaging and storage

Transport to the dealer / Operator

All machines are delivered fully packed.

Internal transport

The manufacturer does not accept liability for transport within the customer's place of
business or to the individual sites of use. It must be ensured that the machines are
only transported upright.

Disposal of the packaging

The packaging of this machine consists of paper, cardboard, polystyrene, wooden
pallet and VCE fleece. Correct disposal of the packaging is the customer's
responsibility.

Storage

The machine can be stored when not in use. It must then be protected from dirt, dust
and damp. For long-term storage of the machine, the individual components,
particularly their sliding surfaces, must be protected against corrosion, e.g. by means
of an oil film.

Installation and initial commissioning

The machine must only be installed and commissioned by specialist staff. All

applicable safety regulations must be strictly complied with here!

If the machine was delivered without table, the stand and table top provided must

safely support the weight of the machine and motor. Adequate rigidity of the pedestal

must be ensured, including during sewing operation.

Suitable electrical and pneumatic supply connections – as described in the "Technical

data" section - must be available at the installation location. In addition, there must be

a level, solid base and adequate lighting at the installation location.

Care of the machine

Switch off the machine!

9

Risk of injury due to the machine being started again inadvertently.

Oil holes marked in red are provided on the cover and on the machine body. The
machine should be oiled at these points about two or three times per month, One drop
of sewing machine oil per oil hole is sufficient.

Attention:

Make sure that you don't too use too much oil, as this can result in the material
becoming soiled.

About every two months, the covers on the looper drive and the skip stitch gears
should be taken off, any excess oil removed, and the individual lubrication points of
the bearings, also marked in red, should be oiled. Also, from time to time, the presser
feet under the stitch plate and the plunger shaft (rib shaft) should be lightly oiled.

Only use sewing machine oil to lubricate the machine.

The time intervals given above relate to single-shift operation.

Disposal of the machine

Correct disposal of the machine is the customer's responsibility.
The materials used on the machine are cast iron, steel, aluminium, brass and various

plastics.
The electrical equipment is made of plastics and copper.
The machine must be disposed of in accordance with the locally applicable

environmental protection regulations. It may be necessary to employ a specialist firm

for this.
Make sure that any parts that have lubricants adhering to them are disposed of

separately in accordance with the locally applicable environmental protection

regulations.

10

Assembly of the machine

Switch off the machine!
Risk of injury due to the machine being started again inadvertently.
Electrical assembly must only be carried out by a qualified electrician!

Installation instructions

Fit the stand in accordance with the stand manufacturer's specification. In addition,

mount the second pedal.
Fit the motor on the table top.
Assemble table top and stand.
Connect treadle and motor lever.
Fit the transmission lever so that the centre hole is located underneath the hole for

the chain that is fixed on to the supporting plate.

Bolt the top section of the sewing machine on to the table top using two bolts. The

fleece must be laid between the top section of the sewing machine and the table top.
Connect the support plate chain to the transmission lever.
Using the long chain, connect the transmission lever to the second treadle.
Fit the V-belt and tension it using the hinged motor bracket.
Fit belt guard as shown in Fig. 11.

Fit the thread stand.

Fitting the finger guard (not on classes 220, 221, 271)
It is essential that the finger guard is fitted, to prevent any finger injury when opening the frame (with
treadle or stop motor).
To do this, remove the ratchet screw, bolt the finger guard onto the table top at a distance of approx
3mm from the supporting plate. Make sure that the supporting plate can move in front of the guard.
Refit the ratchet screw.

11

Mounting instructions for the mini-motor 46 attachment kit

Classes 221 /241/ 251 / 261 /271

Dismantle the rear cover on the machine body.
Remove blanking plug 240236, bolts 221212 and spring 221213.
Remove shaft 221204.

Refit shim 221204A and push the new shaft into the machine body. The shaft should

protrude 10 mm beyond the machine body. Tighten bolt 240205 on the flat, fit set

collar 220151.
Fit blanking plug 240236, spring 221213 and bolt 221212.

Bolt the rear cover back on the machine body. With class 241 and 251 machines, use

the hexagon bolt, nut and washer (supplied) as the top fixing bolt. With class 221

machines, replace the fixing bolts for the cover with the long hexagon bolt, spacer,

flat washer and nut.

The main shaft and gear wheel 221207 must not be turned during the next stages of

the assembly. Remove hand-wheel and gear wheel 221226. Push gear wheel

221226 and pulley with pin onto the main shaft; the two gear wheels must not touch

one another as you do this. Turn the pulley until the pin engages in the slot in the

gear wheel, align the pulley with the faces on the main shaft, push gear wheel and

pulley against the machine body, tighten the bolts in the pulley.

Mount flange on the shaft, fit motor on the flange, push pulley onto the motor shaft.

Fit belt, align motor pulley and tighten, tension belt and tighten flange fixing bolts.
Adjust hexagon bolt on the cover to a distance of 0.5 mm from the motor, fit belt

guard and hand-wheel.

Classes 252/352

Dismantle the rear cover on the machine body.
Remove blanking plug 240236, slacken set collar 240203 and remove shaft 221204.

Push the new shaft into the machine body. The shaft should protrude 10 mm beyond

the machine body. Tighten bolt 240205 on the flat, fit set collar 240203 and fit

blanking plug 241236.
Bolt rear cover onto the machine body; use the hexagon bolt, nut and washer

(supplied) as the top fixing bolt.

The main shaft and gear wheel 221207 must not be turned during the next stages of

the assembly. Remove hand-wheel and gear wheel 221226.

Push gear wheel 221226 and pulley with pin onto the main shaft; the two gear wheels

must not touch one another as you do this. Turn the pulley until the pin engages in

the slot in the gear wheel, align the pulley with the faces on the main shaft, push gear

wheel and pulley against the machine body, tighten the bolts in the pulley.

Mount flange on the shaft, fit motor on the flange, push pulley onto the motor shaft.

Fit belt, align motor pulley and tighten, tension belt and tighten flange fixing bolts.

Adjust hexagon bolt on the cover to a distance of 0.5 mm from the motor, fit belt

guard and hand-wheel.

(see spare parts list for numbers given here)