Pfaff perfomance 2054 User manual

performance 2054
german engineering
PFAFF
Service Manual and Test program
2nd edition May 2003

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3
Page
Contents 3
Foreword 5
Notes on the sewing machine 6
Specifications 7
Dismantling the housing 10
Feeding System
1. Adjustment of the flat-toothed belt tension 17
2. Adjustment of feed dog in sideways direction 18
3. Timing of feed motion 20
4. Adjustment of feed dog height 22
5. Adjustment of synchronizer 24
6. Adjustment of presser foot height 26
7. Adjustment of top feed foot in sewing direction 27
8. Adjustment of top feed height 28
9. Adjustment of the height of the free motion foot 30
Zigzag mechanism
10. Adjustment of needle in needle hole 32
Stitch forming parts (Hook)
11. Position of needle in needle hole in sewing direction 35
12. Adjustment of hook-to-needle clearance 38
13. Adjustment of bevel gears 39
14. Sewing hook timing 40
15. Adjustment of needle bar height 42
16. Adjustment the bobbin case position finger 43
Stitching off
17. Adjustment of needle threader 44
18. Adjustment of bobbin winder stop 46
19. Adjustment of bobbin thread tension 47
20. Adjustment of needle thread tension 48
21. Adjustment of thread check spring stroke 50
22. Adjustment of equal forward and reverse stitch length 52
23. Making up a sewing sample 54
Repair Instructions
24. Dismantling and assembling the needle thread tension 55
25. Changing the torsion spring in handwheel 56
26. Dismantling and assembling sewing hook 58
27. Cleaning and oiling the machine 58
28. Changing the flat-toothed belt 60
29. Changing the bevel gears 66
30. Changing the base circuit board 70
31. Changing the upper circuit board 72
32. Changing the keypad 74
33. Changing the synchronizer circuit board 76
34. Changing the motor 78
35. Changing the cable in the foot control 80
36. Changing the upper stepping motor 82

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Page
37. Changing the lower stepping motor 84
38. Changing the SD motor unit 86
39. Ajusting the toothed rocker 90
40. Changing the buttonhole sensor 94
41. Changing the thread monitor with free-arm cover 96
42. Changing the needle threader 98
Upgrade of the performance 2054
43. Upgrade from a PC via a serial interface on the machine 99
44. Calibrating the Touch panel 100
45. Calibrating the knee lift potentiometer 100
Important special functions of the performance 2054
46. Display contrast 101
47. Version number and status 101
48. Programmed patterns 102
49. Options for messages 102
50. Delete the mashine memory 102
51. Demonstration 102
Machine test
52. Test program 103
Test start
53. Display 103
54. Buttons 103
55. Touch panel 104
56. Signal generator 104
57. Foot control 105
Stepping motors
58. Sewing unit 105
58. Presser foot unit 105
59. Buttonhole control 106
60. Synchronizer 107
61. Machine motor 108
62. Bobbin thread monitor 108
63. Overload protection 109
All tests 109
Test end / Test result 109

5
Foreword
This service and repair manual is intended to assist you in carrying out all repairs to the machines quickly
and correctly.
Adjustments should only be carried out if you find the actual settings deviating from the requirements
described here.
When checking or adjusting a machine, please always proceed in the sequence specified.
For easier reference every workstep is marked with a dot.
Differing worksteps are marked with a circle or square.
The indications „right“, „left“, „top“, „bottom“, „front“ or „rear“ always refer to the upright machine with its
controls facing the operator.
When assembling dismantled machines, make approximate adjustments right in the course of work.
This facilitates subsequent precise adjustments.
If not specified otherwise, the handwheel must always be turned to the front.
Always pull out the mains plug before making repairs to live parts or in their vicinity.
For correct adjustment of the machines, the following gauges and tools are required:
Needle rise gauge 61-111600-02
Needle rise clamp 61-111600-35
Spacer 63-102600-18
Adjustment gauge for bobbin case position finger 61-111621-15
Presser foot gauge 63-114690-39
Pointer gauge 63-114690-23
Pin gauge 63-114690-09
Allen key 1.5 mm 07-433005-28
Combination spanner (wrench) 6.0 mm 07-433007-50
Torx screwdriver TX 6 07-434008-40
Torx screwdriver TX 8 07-434008-41
Torx screwdriver TX 10 07-434008-44
Torx screwdriver TX 15 07-434008-45
Torx offset screwdriver TX 15 07-434008-74
Torx screwdriver TX 20 07-434008-46
Torx screwdriver TX 25 07-434008-47
Circlip fitting tool 2.3 kz 07-437003-20
Circlip fitting tool 3.2 kz 07-437003-30
Circlip fitting tool 4.0 kz 07-437003-40
Circlip fitting tool 5.0 kz 07-437003-50
Circlip fitting tool 6.0 kz 07-437003-60
Circlip pliers A1 07-438000-50
Spring hook 07-437006-00
Subject to alterations in design and dimensions.

Notes on the sewing machine with regard to ambient conditions, treatment,
cleaning and safety
Ambient conditions:
The recommended ranges are:
Ambient temperature -10° to 40°C (50° to 104°F)
Air humidity 20 % to 80 %
This machine is a high-quality electro-mechanical device. It is designed for household purposes and
should always be supervised when in use.
Make sure that it is not subjected to:
dust, severe dampness, direct sunlight, static electricity, heat-producing objects, corrosive chemicals or
liquids.
The machine must be used on a free surface, for ventilation purposes, which is both firm and even.
Treatment:
Always protect the machine against damage by hitting or dropping.
Cleaning:
Housing:
To clean the housing, use a dry, clean and soft cloth which is free of fluff. To remove any stubborn dirt,
use a soft cloth with a neutral cleansing agent for plastic materials.
Please note!
Do not use any insecticides or chemical products such as petrol (gas) or thin chemicals for cleaning the
housing.
Display:
If necessary, clean display with a soft cloth moistened with a little water.
Safety:
1. The machine must be put into operation according to the indications on the specification plate.
2. Do not place any objects in openings on the machine.
3. Do not use the sewing machine if:
- there is visible damage,
- its function is disturbed,
- it is wet, e.g. with condensation.
4. Do not pull the mains plug out of the socket by its cord.
5. If this appliance is used for another purpose than that intended or if it is wrongly operated, we will not
accept any liability for any damage caused.
6. To avoid the risk of electric shock, do not open the machine. There are no parts inside the machine
which the user can repair. This is solely the responsibility of our qualified service staff.
7. Be sure to use only original PFAFF parts.
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Specifications of the PFAFF performance 2054
•Electronic free-arm, utility and fancy stitch sewing machine
•1/4 VGA - touchscreen black-white graphic - display with 2 additional grey shades
•16 bit processor with 8 Kbyte RAM and 1Mbyte Flash-memory, 512 Kbyte PEROM
•Stitch width = 0 - 9 mm with 45 full steps or 90 half steps
•Stitch length = 0 to 6 mm forwards and 0 to 6 mm reverse with a total of 30 full steps or 60 half
steps in each direction
•A full step is 0.2 mm and a half step 0.1 mm
•Keys for slow sewing, pattern start, presser foot lifting, needle up and down, tie off, pattern reflection
•stitch balance, and info menu
•19 different needle positions
•One 7.5° stepping motor for needle zigzag motion 30 V (contact current switching controller)
•One 7.5° stepping motor for feed control 30 V (contact current switching controller)
•2-track synchronizer
•Electronically controlled needle „up“ positioning
•Key for reverse sewing or for finishing a manual buttonhole
•Digital motor control with 950 r.p.m. max. speed
•Approx. 100 - 950 stitches per minute
•Several stitch-length-dependent reduced speeds in addition
•Built-in test program
•When machine is blocked, the motor is switched off automatically after 1 - 2 secs. (Followed by
approx. 4 secs. interruption before sewing process can be continued.)
•Machine: voltage change-over 115/230 V, 50 - 60 Hz
•Low-voltage motor
•High-ohm foot control (cold)
•FM radio and TV screened, approval marking; safety class II with CE, VL, CSA test markings
•Master switch for motor, electronics and sewing lamp
•Built-in glarefree sewing lamp 12 V/5 W
•Needle threader Pendulum-type needle bar frame.
•Transmission of drive from arm shaft to lower shaft by flat-toothed belt, transmission ratio 1:1.
•Lockstitch of types 301, 302, 303, 304, 305, 308 and all other variants obtainable by sideways
needle movement or forwards and reverse control of the machine feed
•Link take-up
•Integrated double feed ( IDT - System )
•Outside positioned feed dog lowering mechanism
•Pfaff - double rotary hook
•Manual thread cutter
•Handwheel with automatic torsion spring clutch
•Manual and automatic presser foot lifting with knee lift lever
•Lower thread rest control
•Program update via RS232 interface
•Programmable pattern combinations
•Twin needle warning symbol
•Programmable, semi automatic and automatic buttonhole
•Automatic tapering
•Automatic lock stitch ( beginning and end of seam )
•195 sewing programs with all useful utility - and fancy stitches
•4 alphabetes with 245 letters, numbers and symbols
•Snap-on sewing feet and snap-on needle plate
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• 1 integrated spool pin and 1 connectable spool pin
• Buttonhole guide
• Carrying case with storage compartment
• Detachable work support with accessory compartment
• Drive from motor to handwheel by flat toothed belt
• Calotte metal bearings
• Oil for calotte metal bearings: BP Energol HLP 46 or HLP 80 No. 28-036550-09
• Oil for sewing hook: No. 91-129452-91
• Presser foot lifting 8 mm
• Presser foot overlifting 10,5 mm
• Presser foot pressure 13N+2
• Machine height: 290 mm
• Baseplate dimensions: 402 x 175 mm / machine length 408 mm
• Machine width 187 mm
• Free-arm dimensions: 80, 49, 200 mm
• Freearm length ( in the right of needle ) 158 mm
• Housing and baseplate material: die-cast aluminium
• Machine weight without carrying case: 8.3 kg
• Needle system 130/705 H
• Additional needle system classifications:
Twin needle Suffix = Zwi
Wing needle Suffix = Wing
Twin hem stitching needle Suffix = Zwi-Ho
Long needle eye Suffix = N
Stretch needle Suffix = PS
Denim needle Suffix = J
• Possible needle points:
Small ball point Suffix = SES
Medium ball point Suffix = SUK
Large ball point Suffix = SKF
Pointed cloth point Suffix = J
Leather point right hand Suffix = LR
Specifications of drive motor for the PFAFF performance 2054
____________________________________________________________________
No. 93-330 111-91/000 24 V = 50W 8000 r.p.m.
____________________________________________________________________

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ESD
Warning!
It is of utmost importance to be careful to protect parts from electrostatic discharge (ESD).
To prevent this from happening, circuit boards must be handled in a controlled way.
Always use strap 412 23 02-01 for maintenance work.

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Dismantling the housing cover
Note: Before adjusting or repairing the machine, make sure dismantle the housing covers
according to the adjustment and repair instructions.
• Pull out the mains plug and the socket on the machine.
• Remove the needle and the presser foot shoe.
• Remove the detachable work support.
• Remove the top cover.
• Unscrew and remove the two torx screws of the housing insert.
• Remove the housing insert.
• Slightly raise both lugs 1 and remove the facing panel of the front housing panel by swiveling
it downwards (fig. 1).
• Remove connection plug 2 and 3 from the circuit board (fig. 2).