Pfaff 3834-14/11 User manual

This instruction manual applies to machines
from the following serial numbers onwards:
# 2 733 153
INSTRUCTION MANUAL
3834- 14/11, -14/31
296-12-18 936/002
Betriebsanleitung engl. 06.09

This Instruction manual is valid for all models and subclasses listed in
the chapter "Specifications".
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 Industriesysteme
und Maschinen AG
Hans-Geiger-Str. 12 - IG Nord
D-67661 Kaiserslautern

Index
Contents ................................................................................. Chapter - Page
1Safety ........................................................................................................................... 1 - 1
1.01 Directives...................................................................................................................... 1 - 1
1.02 General notes on safety ................................................................................................ 1 - 1
1.03 Safety symbols ............................................................................................................. 1 -2
1.04 Important points for the user ........................................................................................ 1 - 2
1.05 Operating and specialist personnel ............................................................................... 1 - 3
1.05.01 Operating personnel...................................................................................................... 1- 3
1.05.02 Specialist personnel ......................................................................................................1- 3
1.06 Danger .......................................................................................................................... 1 - 4
2Proper use.................................................................................................................... 2 -1
3Specifications .............................................................................................................. 3 - 1
3.01 PFAFF 3834-14/11 and -14/31 ....................................................................................... 3 - 1
3.02 Model, needle and thread ............................................................................................. 3 - 1
4Disposal of machine ................................................................................................... 4 - 1
5Transport, packaging and storage ............................................................................. 5 - 1
5.01 Transportation to customer’s premises ........................................................................ 5 - 1
5.02 Transport within the customer’s premises ................................................................... 5 - 1
5.03 Disposal of the packaging ............................................................................................. 5 - 1
5.04 Storage ......................................................................................................................... 5 - 1
6Explanation of the symbols........................................................................................ 6 - 1
7Controls ....................................................................................................................... 7- 1
7.01 On/Off switch ............................................................................................................... 7- 1
7.02 Pedal ............................................................................................................................. 7 - 2
7.03 Machine head keys ....................................................................................................... 7 - 1
7.04 Knee switch ..................................................................................................................7- 3
7.05 Lever for raising the roller presser ................................................................................ 7 - 3
7.06 Control panel................................................................................................................. 7 - 4
8Mounting and commissioning the machine .................................................................. 8 - 1
8.01 Mounting....................................................................................................................... 8 - 1
8.01.01 Adjusting the table-top height ....................................................................................... 8 - 1
8.01.02 Fitting the tilt lock.......................................................................................................... 8 - 2
8.01.03 Fitting the machine cover.............................................................................................. 8 - 2
8.02 Mounting the flange motor ........................................................................................... 8 - 3
8.02.01 Mounting the flange motor to the bearing plate............................................................ 8 - 3
8.02.02 Mounting the flange motor to the machine................................................................... 8 - 3
8.02.03 Connecting the plug-in connections and earth cables ................................................... 8 - 4
8.02.04 Mounting the toothed belt / Basic setting of the machine drive.................................... 8 - 5
8.02.05 Mounting the belt guard of the flange motor ................................................................ 8 - 6
8.02.06 Connecting the safety switch ....................................................................................... 8 - 7
8.02.07 Checking the function of the start inhibitor ................................................................... 8 - 7
8.03 Mounting the spool holder ............................................................................................ 8 - 8

Index
Contents ................................................................................. Chapter - Page
8.04 Commissioning the machine......................................................................................... 8 - 8
8.03 Turning the machine on/off ........................................................................................... 8 - 8
9Preparation .................................................................................................................. 9 - 1
9.01 Inserting the needle ...................................................................................................... 9 - 1
9.02 Winding the bobbin thread, adjusting the thread tension .............................................. 9 - 2
9.03 Removing/inserting the bobbin case ............................................................................. 9 - 3
9.04 Threading the bobbin case / Adjusting the bobbin thread tension ................................. 9 - 3
9.05 Threading the needle thread / Adjusting the needle thread tension .............................. 9 - 4
9.06 Setting the needle thread function ................................................................................ 9 - 5
9.07 Selecting the program number...................................................................................... 9 - 6
9.08 Setting the stitch lengths .............................................................................................. 9 - 7
9.09 Entering the fullness area for the pedal adjustment...................................................... 9 - 8
9.10 Entering the start and end backtacks............................................................................ 9 - 9
9.11 Switching on / adjusting the bobbin thread control with the stitch count function ........ 9 -10
9.12 Entering / altering the code number .............................................................................. 9 -12
9.13 Adjusting the control panel............................................................................................ 9 -14
10 Sewing ....................................................................................................................... 10 -1
10.01 Manual sewing............................................................................................................ 10 - 1
10.02 Sewing with fixed programs ....................................................................................... 10 - 3
10.03 Programmed sewing................................................................................................... 10 - 5
10.03.01 Fullness adjustment .................................................................................................... 10 -7
10.03.02 Selecting the garment size.......................................................................................... 10 - 7
10.03.03 Program interruption ................................................................................................... 10 -8
10.04 Error messages........................................................................................................... 10 - 8
11 Input ...........................................................................................................................11- 1
11.01 Seam program input ................................................................................................... 11 - 2
11.01.01 Basic settings for seam program input ....................................................................... 11 - 2
11.01.02 Seam program input with the "Creating/adjusting a program" function ....................... 11 - 4
11.01.03 Seam program input with the "Teach-in" function........................................................ 11 - 6
11.02 Examples of how to create seam programs ............................................................... 11 - 8
11.02.01 Example of a seam program input using the
"Creating/adjusting a program" function....................................................................... 11 - 8
11.02.02 Example of a seam program input using the "Teach in" function................................. 11 -10
11.03 Seam program administration ..................................................................................... 11 -15
12 Care and Maintenance .............................................................................................. 12 - 1
12.01 Cleaning ...................................................................................................................... 12 - 1
12.02 Oiling the hook ............................................................................................................ 12- 2
12.03 Checking the oil levels ................................................................................................ 12 - 2
12.04 Lubricating the bevel gears ......................................................................................... 12 - 3
13 Adjustment ................................................................................................................ 13 - 1
13.01 Notes on adjustment................................................................................................... 13 - 1
13.02 Tools, gauges and other accessories .......................................................................... 13 - 1
13.03 Abbreviations .............................................................................................................. 13- 1

Index
Contents ................................................................................. Chapter - Page
13.04 Adjusting the basic machine ....................................................................................... 13 - 2
13.04.01 Positioning the needle in the direction of sewing........................................................ 13 - 2
13.04.02 Positioning the needle across the direction of sewing ................................................ 13 - 3
13.04.03 Preadjusting the needle height.................................................................................... 13 - 4
13.04.04 Needle rise, hook-to-needle clearance, needle height and needle guard..................... 13 - 5
13.04.05 Height and stroke of the bobbin case opener ............................................................. 13 - 7
13.04.06 Height of the feed wheel ............................................................................................ 13 - 8
13.04.07 Clearance between roller presser and feed wheel ...................................................... 13 - 9
13.04.08 Roller presser.............................................................................................................. 13 -10
13.04.09 Puller (only on the PFAFF 3834-14/31) ........................................................................ 13 -11
13.04.10 Roller presser height level switch ............................................................................... 13 -12
13.04.11 Automatic presser foot lift .......................................................................................... 13 -13
13.04.12 Retainer ...................................................................................................................... 13 -14
13.04.13 Thread check spring .................................................................................................... 13 -15
13.04.14 Bobbin winder .............................................................................................................13-16
13.04.15 Roller presser pressure ............................................................................................... 13 - 17
13.04.16 Locking the set value transmitter................................................................................ 13 -18
13.04.17 Lubrication .................................................................................................................. 13 -19
13.04.18 Re-engage safety coupling.......................................................................................... 13 -20
13.05 Adjusting the thread trimmer –900/81......................................................................... 13 -21
13.05.01 Resting position of the roller lever / radial position of the control cam ........................ 13 -22
13.05.02 Position of the thread catcher holder .......................................................................... 13 -23
13.05.03 Distance between thread catcher and needle plate .................................................... 13 -24
13.05.04 Position of the thread catcher ..................................................................................... 13 -25
13.05.05 Knife position and knife pressure ................................................................................ 13 -26
13.05.06 Bobbin thread retaining spring .................................................................................... 13 -27
13.05.07 Manual cutting test ..................................................................................................... 13-28
13.06 Parameter settings...................................................................................................... 13 -29
13.06.01 Overview of the parameter functions ......................................................................... 13 -29
13.06.02 Example of a parameter input ..................................................................................... 13 -30
13.06.03 List of parameters....................................................................................................... 13 -31
13.07 Explanation of the error messages.............................................................................. 13 -32
13.08 Warning messages ..................................................................................................... 13 -33
13.09 Carry out a cold start................................................................................................... 13 -34
13.10 Internet update of the machine software.................................................................... 13 -35
13.11 Service menu .............................................................................................................. 13 -36
14 Wearing parts ............................................................................................................ 14 - 1
15 Circuit diagrams ........................................................................................................ 15 - 1