Operation Manual

Adjustment
11.04.15
Thread
check
spring
on
PFAFF
1246
with
thread
trimmer
9OO/56
Requirement
The
motion
of
thread
controller
springs
1
and
6
should
cease
as
soon
as
the
needle
point
penetrates
the
material
(=
about
7
mm
spring
deflection).
Due
to
technical
reasons,
the
length
of the
thread-check
spring
path
can
var’
a
-i little
in either
direction.
•
Turn
screw
2
(screw
3)
to
adjust
the
spring
resistance
of
thread
check
spring
1.
•
Turn
retainer
4
Iscrew
5)
according
to
the
requirement.
•
Turn
screw
7 (screw
81
to
adjust
the
spring
resistance
of
thread
check
spring
6.
•
Turn
retainer
9 lscrew
10)
according
to
the
requirement.
PFAFF
11
-
17