Pfaff ClassicStyle 1525 User manual

296-12-18 596/002
Betriebsanleitung engl. 08.06
Instruction Manual
1525
1525-S
This instruction manual applies to machines from the
following serial numbers onwards:
# 2722168
1525-G
1526

This Instruction Manual is valid for all models and subclasses listed in the
chapter " Specifications ".
The adjustment manual for the machines can be downloaded free of charge
from the internet address
www.pfaff-industrial.de/pfaff/de/service/downloads
As an alternative to the internet download the adjustment manual can also be
ordered in book form under part no. 296-12-18 597/002.
The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in
part, is only permitted with our previous authorization and with written reference to the
source.
PFAFF Industrie Maschinen AG
Postfach 3020
D-67653 Kaiserslautern
Königstr. 154
D-67655 Kaiserslautern

Contents
Contents ............................................................................... Chapter - Page
1Safety ........................................................................................................................ 1 -1
1.01 Regulations ................................................................................................................ 1 -1
1.02 General notes on safety ............................................................................................. 1 - 1
1.03 Safety symbols .......................................................................................................... 1 - 2
1.04 Important notes for the user ...................................................................................... 1 - 2
1.05 Notes for operating and technical staff ...................................................................... 1 - 3
1.05.01 Operating staff ...........................................................................................................1- 3
1.05.02 Technical staff ............................................................................................................ 1 - 3
1.06 Danger warnings ........................................................................................................ 1 - 4
2Proper use................................................................................................................. 2 - 1
3Specifications ........................................................................................................... 3 - 1
3.01 PFAFF 1525, PFAFF 1526 .......................................................................................... 3 - 1
3.02 Possible work aids ..................................................................................................... 3 - 2
4Machine disposal ..................................................................................................... 4 - 1
5Transportation, packing and storage ...................................................................... 5 - 1
5.01 Transportation to customer's premises ..................................................................... 5 - 1
5.02 Transportation inside customer's premises ............................................................... 5 - 1
5.03 Disposal of packing materials ..................................................................................... 5 - 1
5.04 Storage ......................................................................................................................5- 1
6Explanation of symbols ........................................................................................... 6 - 1
7Controls .................................................................................................................... 7 - 1
7.01 On/off switch ............................................................................................................. 7 - 1
7.02 Keys on machine head ............................................................................................... 7 - 1
7.03 Pedal .......................................................................................................................... 7 - 2
7.04 Knee switch ............................................................................................................... 7 - 2
7.05 Presser foot fixing key ............................................................................................... 7 - 3
7.06 Adjusting the stitch length (on thePFAFF 1525 and 1526).......................................... 7 - 3
7.07 Adjusting the stitch length (on thePFAFF 1525-S) ...................................................... 7 - 4
7.08 Reverse-feed control .................................................................................................. 7 - 4
7.09 Edge trimmer -731/02 ................................................................................................ 7 - 5

Contents
Contents ............................................................................... Chapter - Page
7.10 Secondary needle-thread tension ............................................................................... 7 - 5
7.11 Adjusting the top feed stroke ..................................................................................... 7 - 6
7.12 Bobbin-thread supply monitor -926/06 ....................................................................... 7 - 6
7.13 Bobbin thread control by stitch counting .................................................................... 7 - 7
7.14 Control panel (only on machines with Quick-Eco drive) .............................................. 7 - 7
8Installation and commissioning .............................................................................. 8 - 1
8.01 Installation .................................................................................................................. 8 - 1
8.01.01 Adjusting the table-top height .................................................................................... 8 - 1
8.01.02 Assembling the motor (only on machines with Quick-motor)..................................... 8 - 2
8.01.03 Tightening the V-belt .................................................................................................. 8 - 2
8.01.04 Mounting the bottom V-belt guard ............................................................................. 8 - 3
8.01.05 Fitting the bottom V-belt guard .................................................................................. 8 - 3
8.01.06 Fitting the synchronizer .............................................................................................. 8 - 4
8.01.07 Fitting the tilt lock....................................................................................................... 8 - 4
8.01.08 Fitting the reel stand .................................................................................................. 8 -5
8.02 Connecting the plug-in connections and earth cables ................................................ 8 - 6
8.03 Installation .................................................................................................................. 8 - 7
8.04 Switching the machine on/off .................................................................................... 8 - 7
8.05 Basic position of the machine drive unit..................................................................... 8 - 8
9Setting up ................................................................................................................. 9 - 1
9.01 Inserting the needle ................................................................................................... 9 - 1
9.02 Winding the bobbin thread, regulating the winder tension ......................................... 9 - 2
9.03 Bobbin-changing/threading, and regulating the bobbin thread tension ....................... 9 - 3
9.04 Threading needle thread and regulating its tension on the PFAFF 1525 ..................... 9 - 4
9.05 Threading needle threads and regulating tensions on the PFAFF 1526 ..................... 9 - 5
10 Care and maintenance ........................................................................................... 10 - 1
10.01 Cleaning the hook area ............................................................................................. 10 - 1
10.02 Oiling the hook ......................................................................................................... 10 - 2
10.03 Checking/adjusting the air pressure ......................................................................... 10 - 3
10.04 Cleaning the air filter of the air-filter/lubricator.......................................................... 10 - 3
10.05 Parameter settings ................................................................................................... 10 - 4
10.05.01 Parameter list ........................................................................................................... 10 - 4

Contents
Contents ............................................................................... Chapter - Page
11 Mounting the table top and Circuit diagrams ...................................................... 11 - 1
11.01 Table top cutout ....................................................................................................... 11 - 1
11.02 Mounting the table top ............................................................................................. 11 - 2
11.03 Circuit diagrams ....................................................................................................... 11 - 3
12 Wearing parts ......................................................................................................................... 12 - 1

1 - 1
Safety
1 Safety
1.01 Regulations
This machine is constructed in accordance with the European regulations indicated in the
conformity and manufacturer's declarations.
In addition to this instruction manual, please also observe all generally accepted, statutory
and other legal requirements, including those of the user's country, and the applicable pol-
lution control regulations!
The valid regulations of the regional social insurance society for occupational accidents or
other supervisory authorities are to be strictly adhered to!
1.02 General notes on safety
●The machine must only be operated by adequately trained operators and only when the
instruction manual has been fully read and understood!
●All notices on safety and the instruction manual of the motor manufacturer are to be
read before the machine is put into operation!
●All notes on the machine concerning danger and safety must be observed!
●The machine must be used for the purpose for which it is intended and must not be
operated without its safety devices; all regulations relevant to safety must be adhered
to.
●When part sets are changed (e.g. needle, presser foot, needle plate, feed dog or bob-
bin), during threading, when the workplace is left unattended and during maintenance
work, the machine must be isolated from the power supply by turning off the on/off
switch or removing the plug from the mains!
●Daily maintenance work must only be carried out by appropriately trained persons!
●Repairs and special maintenance work must only be carried out by qualified technical
staff or persons with appropriate training!
●During maintenance or repairs on the pneumatic system the machine must be isolated
from the compressed air supply! The only exception to this is when adjustments or
function checks are carried out by appropriately trained technical staff!
●Work on the electrical equipment must only be carried out by technical staff who are
qualified to do so!
●Work on parts or equipment connected to the power supply is not permitted! The only
exceptions to this are specified in regulations EN 50110.
●Conversion or modification of the machine must only be carried out under observation of
all relevant safety regulations!

1 - 2
Safety
●Only spare parts which have been approved by us are to be used for repairs! We draw
special attention to the fact that spare parts and accessories not supplied by us have not
been subjected to testing nor approval by us. Fitting and/or use of any such parts may
cause negative changes to the design characteristics of the machine. We shall not ac-
cept any liability for damage caused by the use of non-original parts.
1.03 Safety symbols
Danger!
Special points to observe.
Danger of injury to operating or technical staff!
1.04 Important notes for the user
●This instruction manual belongs to the equipment of the machine and must be available
to the operating staff at all times.
This instruction manual must be read before the machine is operated for the first time.
●Both operating and technical staff must be instructed on the safety devices of the mach-
ine and on safe working methods.
●It is the duty of the user to operate the machine in perfect running order only.
●The user must ensure that none of the safety devices are removed nor put out of work-
ing order.
●The user must ensure that only authorized persons operate and work on the machine.
For further information please refer to your PFAFF agency.
I
Caution
Do not operate without finger guard and safety devices.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.

1 - 3
Safety
1.05 Notes for operating and technical staff
1.05.01 Operating staff
Operating staff are the persons responsible for setting up, operating and cleaning the mach-
ine and for removing any disturbances in the sewing area.
The operating staff are obliged to observe the following points, and must:
●always observe the notes on safety in this instruction manual!
●avoid using any working methods which adversely effect the safety of the machine!
●avoid wearing loose-fitting clothing or jewelry such as necklaces or rings!
●also ensure that only authorized persons are allowed near the danger area of the
machine!
●immediately report to the user any changes to the machine that may affect its safety!
1.05.02 Technical staff
Technical staff are persons who have been trained in electrical engineering, electronics,
pneumatics and mechanical engineering. They are responsible for lubricating, servicing,
repairing and adjusting the machine.
The technical staff are obliged to observe the following points, and must:
●always observe the notes on safety in this instruction manual!
●switch off the on/off switch before carrying out adjustment and repair work and ensure it
cannot be switched on again unintentionally!
●never work on parts or equipment still connected to the power supply! Exceptions to this
are only permissible according to regulations EN 50110;
●isolate the machine from the compressed air supply when carrying out maintenance or
repair work on pneumatic equipment!
Exceptions to this are only permissible for function checks;
●replace all safety covers after carrying out maintenance or repair work!

1 - 4
Safety
1.06 Danger warnings
A working area of 1 m must be kept free both in front of and behind the mach-
ine, so that easy access is possible at all times.
Never put your hands in the sewing area during sewing!
Danger of injury by the needle!
While setting or adjusting the machine do not leave any objects on the table
nor in the needle plate area! Objects may be trapped or slung out of the mach-
ine!
Do not operate the machine without take-up lever guard 1!
Danger of injury due to movement of the take-up lever!
Do not operate the machine without belt guards 2und 3!
Dange of injury by the rotating v-belt!
Do not operate the macine without finger guard 4!
Danger of injury by the needle!
Do not operate the machine without tilt lock 5!
Danger of crushing between sewing head and table!
Fig. 1 - 01
2
3
5
4
1

2 - 1
Proper use
2 Proper use
The PFAFF 1525 and PFAFF 1525-S are single needle, special high-speed lockstitch sewing
machines with unison feed and a large hook.
The PFAFF 1525-G
is a single needle, special high-speed lockstitch sewing machines with
unison feed and an extra large hook.
The PFAFF 1526 is a two-needle, special high-speed lockstitch sewing machines with
unison feed and a large hook.
Die Maschinen dienen zur Herstellung von Doppelsteppstichnähten in der Textilindustrie.
Any use of these machines which is not approved by the manufacturer shall be
considered as improper use! The manufacturer shall not be liable for any dam-
age arising out of improper use! Proper use shall also be considered to include
compliance with the operation, adjustment, service and repair measures speci-
fied by the manufacturer!
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