Adjustment
56
12 Adjustment
On the
PFAFF
3511-2/01
do not use a screw clamp on the needle bar!
The special coating of the needle bar could be damaged..
12
.01
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 adjust-
ments, 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 specifi c 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.
If not otherwise stated, the machine must be disconnected from the electrical
power supply. Danger of injury due to unintentional starting of the machine!
12
.02
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.
61-111 639-73
1
adjustment gauge for tightening the hook drive belt, Part-No.
61-111 639-76
Sewing thread and test material
12
.03
Abbreviations
TDC = top dead center
BDC = bottom dead center
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