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 instruc-
tion 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!
On the PFAFF 487 do not use a screw clamp on the needle bar!
The special coating of the needle bar could be damaged.
1.01 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 adjustments, are not mentioned in the text.
The order of the following chapters corresponds to the most logical work sequence for ma-
chines 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 loose-
ned before adjustment and tightened again afterwards.
1.02 Tools, gauges and other accessories for adjusting
● Set of screwdrivers with blade widths from 2 to 10 mm
● Set of open-ended spanners, 7 to 14 mm across-fl ats
● Set of allen keys, 1.5 to 6 mm
● Metal rule, part No. 08-880 218-00
● Adjustment pin (5 mm dia.), part No. 13-030 341-05
● Adjustment gauge, part. No. 61-111 639-49
● Adjustment link, part No. 91-069 375-15
● Adjustment foot, part No. 61-111 639-20
1.03 Abbreviations
TDC = top dead center
BDC = bottom dead center
1.04 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)
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