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Adjustment
4
1 Adjustment
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 refi tted
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. Danger of injury due to unintentional starting of the machine!
The illustrations in this section show the PFAFF 1245 single-needle machine.
For the PFAFF 1246 two-needle machine, various adjustments must be made
twice, i.e. to the left- and right-hand sewing hooks. This will be pointed out in
the respective sections, whereby it is often possible to apply the mirror image
of the illustrations.
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.
1.01 Tools, gauges and other accessories for adjusting
● Screwdrivers withi blade widths from 2 to 10 mm
● Spanners (wrenches) in sizes from 7 to 14 mm
● Allen keys from 1.5 to 6 mm
● Metal rule (part No. 08-880 218-00)
● Needle-rise gauge (part No. 61-111 600-01)
● Gauge, (top feed stroke 7 mm) (Part No. 61-111 633-61)
● Screw clamp (part No. 61-111 600-35)
1.02 Abbreviations
t.d.c. = top dead centre
b.d.c. = bottom dead centre
1.03 Explanation of the symbols
In this adjustment manual, symbols emphasize operations to be carried out or important in-
formation. The symbols used have the following meaning:
Note, information
Service, repair, adjustment, maintenance
(work to be carried out by qualifi ed staff only)