Specifications
3
.02
Needles and threads
Model
Thread
t hicknesss (Nm)
max. synt het ic
▲
Needle t hick-
ness in 1/100
mm
Needle
syst em
f or Typical 571
Needle
syst em
f or Typical 574
Needle
syst em
f or Typical 591
A
60/3
70
134
-
134
B
40/3
100
134
134 - 35
134
C
15/3
130
-
134 - 35
134
▲
or similar strengths of other types of thread
3
.02
Possible models and subclasses
TYPICAL 571, 591
Model A ................................................................................. For sewing lightweight materials
TYPICAL 571, 591
Model B ..........................................................................For sewing medium-weight materials
TYPICAL 574, 591
Model C ........................................................................... For sewing medium-heavy materials
Additional equipment:
Subclass -725/04 .................................................................................................. Edge trimmer
Subclass -900/83............................................................................................... Thread trimmer
Subclass -910/17 ........................................................................... Automatic presser foot lifter
Subclass -911/37 ......................................................................................................... Bartacker
Subclass -940/02 .......................................................Needle plate rounded in sewing direction
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