Pfaff 1183-712/02 Guide
ADJUSTMENT MANUAL
296-12-18 611/002
Justieranleitung engl. 06.09
This Adjustment Manual is valid for machines
from the following serial numbers onwards:
# 6 001 000
1183-712/02
Industrial
®
The reprinting, copying or translation of PFAFF Adjustment 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
12 Adjustment ................................................................................................................ 12 - 1
12.01 Tools, gauges and other accessories for adjusting...................................................... 12 - 1
12.02 Abbreviations .............................................................................................................. 12- 1
12.03 Explanation of the symbols ......................................................................................... 12 - 1
12.04 Checking and adjusting aids ........................................................................................ 12 - 2
12.05 Adjusting the basic machine ....................................................................................... 12 - 3
12.05.01 Preliminary adjustment of the needle height............................................................... 12 - 3
12.05.02 Needle in needle hole centre....................................................................................... 12 - 4
12.05.03 Hook shaft bearing and toothed belt tension .............................................................. 12 - 5
12.05.04 Hook lubrication ..........................................................................................................12- 6
12.05.05 Needle rise, hook-to-needle clearance, needle height and bobbin case
position finger ............................................................................................................. 12 - 7
12.05.06 Thread check spring and slack thread regulator .......................................................... 12 - 8
12.05.07 Bobbin winder .............................................................................................................12- 9
12.05.08 Presser foot pressure ................................................................................................. 12 -10
12.05.09 Presser foot control cam............................................................................................. 12 -11
12.05.10 Presser foot stroke ..................................................................................................... 12-12
12.05.12 Presser foot height ..................................................................................................... 12-13
12.06 Adjusting the thread trimming device –900/24............................................................ 12 -14
12.06.01 Adjusting the solenoid / preliminary adjustment of the control cam............................ 12 -14
12.06.02 Lateral alignment of the thread catcher ...................................................................... 12 -15
12.06.03 Knife position .............................................................................................................. 12 -16
12.06.04 Front point of reversal of the thread catcher ............................................................... 12 -17
12.06.05 Manual trimming check............................................................................................... 12 -18
12.06.06 Needle thread tension release .................................................................................... 12 -19
12.06.07 Readjusting the control cam ....................................................................................... 12 -20
12.07 Parameter settings...................................................................................................... 12 -21
12.07.01 Selecting the user level............................................................................................... 12 -21
12.07.02 Example of a parameter input ..................................................................................... 12 -22
12.07.03 List of parameters....................................................................................................... 12 -23
12.08 Internet update of the machine software.................................................................... 12 -24
12.09 Reset / Cold start ........................................................................................................ 12 -25
12.10 Explanation of the error signals ................................................................................... 12 -26
13 Circuit diagram .......................................................................................................... 13 - 1
Adjustment
12 - 1
12 Adjustment
On the PFAFF 1183-712/02 no adjustable clamp should be fastened to the
needle bar! This could cause damage to the special coating of the needle bar.
Please observe all notes from Chapter 1 Safety of the instruction manual! In
particular care must be taken to see that all protective devices are refitted
properly after adjustment, see Chapter 1.06 Danger warnings of the
instruction manual!
If not otherwise stated, the machine must be disconnected from the electrical
power supply.
Notes on adjustment
All following adjustments are based on a fully assembled machine and may only be carried
out by expert staff trained for this purpose.
Machine covers, which have to be removed and replaced to carry out checks and
adjustments, are not mentioned in the text.
The order of the following chapters corresponds to the most logical work sequence for
machines which have to be completely adjusted. If only specific individual work steps are
carried out, both the preceding and following chapters must be observed.
Screws, nuts indicated in brackets ( ) are fastenings for machine parts, which must be
loosened before adjustment and tightened again afterwards.
12.01 Tools, gauges and other accessories for adjusting
●1 set of screwdrivers with blade widths from 2 to 10 mm
●1 set of wrenches with jaw widths from 7 to 14 mm
●1 set of Allan keys from 1.5 to 6 mm
●1 metal rule, (Part No. 08-880 218-00)
●1 adjustment pin (5 mm dia.), Part No. 13-033 346-05
●Adjustment gauge, part No. 61-111 639-70
●1 adjustment gauge for tightening the hook drive belt, Part-No. 61-111 639-76
●Sewing thread and test material
12.02 Abbreviations
TDC = top dead center
BDC = bottom dead center
12.03 Explanation of the symbols
In this adjustment manual, symbols emphasize operations to be carried out or important
information. The symbols used have the following meaning:
Note, information
Service, repair, adjustment, maintenance
(work to be carried out by qualified staff only)
Adjustment
12 - 2
12.04 Checking and adjusting aids
With the aid of blocking pin 1(part No. 13-033346-05) and if necessary
adjustment gauge 3(part No. 61-111 639-70) the machine can be blocked in the
following positions for adjustment
Needle bar position 1.8 mm past b.d.c.
●Turn balance wheel until needle bar is roughly in required position
●Insert blocking pin 1in hole
●Turn balance wheel slightly back and forth until blocking pin engages crank 2
Needle bar position 0.6 mm past t.d.c.
●Set needle bar roughly at required position
●Place adjustment gauge 3onto pins 4and 5, making sure right side is used (for 30 or 36
mm needle bar stroke)
Needle bar position 0.6 mm past b.d.c.
●Set needle bar roughly at required position
●Place adjustment gauge 3onto pins 4and 5, making sure right side is used (for 30 or 36
mm needle bar stroke)
Fig. 12 - 01
1
2
4
5
3
Adjustment
12 - 3
6
-
014
2
3
12.05 Adjusting the basic machine
12.05.01 Preliminary adjustment of the needle height
Requirement
When the needle bar 1is at its t.d.c.,the needle point should be21 mm above the needle plate.
Fig. 12 - 02
●Without twisting it, adjust needle bar 1(screw 2) in accordance with the requirement.
96-037
21 mm
Adjustment
12 - 4
96-011
12.05.02 Needle in needle hole centre
Requirement
The needle should penetrate in the exact centre of the needle hole.
●Position the needle in the needle hole.
●Loosen screws 1, 2 and 3.
●Adjust the needle bar frame 4in accordance with the requirement.
●Tighten screw 2and slightly tighten screw 3.
●Use screw 1to draw the internal guide pin towards the eye of the needle bar frame 4and
tighten it.
●Turn the balance wheel a few times so that the needle bar frame 4is not under tension.
●Tighten screw 3.
1
4
Fig. 12 - 03
96-012
2
3
Adjustment
12 - 5
12.05.03 Hook shaft bearing and toothed belt tension
Requirement
1. The front edge of the hook shaft 5should be at a distance of 14.5 mm from the centre
of the needle, whereby the groove in the hook shaft bearing 1(see arrow) should be pa-
rallel to the bed plate and point away from the direction of sewing.
2. The toothed belt should be tightened, so that when a gauge is pressed on it, the
marking in the gauge window matches the marking on the bushing.
1
3
Fig. 12 - 04
●Align hook shaft bearing 1(screw 2) in accordance with requirement 1.
●Press gauge (part no. 61-111 639-76) on the toothed belt so that it is in the centre of the
toothed belt and touching the bearing on the rock shaft. The gauge window must point
towards the hook.
●Turn eccentric 3(screw 4) in a clockwise direction in accordance with requirement 2,
making sure that the axial position of the eccentric 3is not altered.
4
96-033
5
2
14,5 mm
96-032
1
Adjustment
12 - 6
12.05.04 Hook lubrication
Requirement
1. The centrifugal disk 1must be positioned 1.5 mm in front of the oil ring 3.
2. When the machine is running at full speed, after approx. 10 seconds a mark should be
made by a fine stripe of oil on the strip of paper placed over the needle plate cutout.
The adjustment is only necessary if the wick has been replaced.
When replacing the wick, make sure that the new wick is impregnated with oil.
●Move the centrifugal disk 1(screw 2) according to requirement 1.
●Check requirement 2. If necessary, move centrifugal disk 1.
Fig. 12 - 05
2
1
3
1,5 mm
Adjustment
12 - 7
6
-
014
12.05.05 Needle rise, hook-to-needle clearance, needle height and bobbin case
position finger
Requirement
With the needle at 1.8 mm after BDC,
1. the hook point 6must point to the middle of the needle and be at a distance of
0.05 mm - 0.1 mm to the clearance cut of the needle, and
2. the top edge of the needle eye must be 0.8 mm below the hook point.
3. Between the projection of the bobbin case position finger 4and the bottom of the
retaining groove there should be a distance of 0.5 mm.
●Using the adjustment pin, position the needle bar at 1.8 mm after BDC.
●Adjust the hook according to requirement 1.
●Tighten screw 1.
●Move needle bar 2(screw 3) without turning it according to requirement 2.
●Align bobbin case position finger 4(screw 5) according to requirement 3.
Fig. 12 - 06
0,05 - 0,1 mm
6
1
96-015
0,5 mm
4
2
3
0,8 mm
96-016
5
4
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