It
A,,..
USTMENT
OF
TEntSION
RELEASE
Tbe machine
is
normally adjusted
at
the
factory so
that
the
tension of the upper thread will be released when
the presser foot is raised in excess of 17/64".
Jf
it
is desired to effect thread tension release with a lesser lift
su_!:h
as when sewing very thin materials,
this
adjustment can be made
by
the user.
To
change the timing of the thread tension reiease, proceed
as
foHows :
14
1.
Remove face plate from mach.ine making sure
that
its gasket will not be damaged under
any
circum-
stances.
2.
Do
not wipe blue-colored sealing compound from the gasket
nor from any of the contact surfaces of the face plate
and
the arm.
:3.
Loosen screw A (Fig. 14) to adjust regulating
arm
B.
Set
the height of arm B
so
that
there
wHI
be upper
thread
tension when the presser foot
!s
lifted for tacking.
The
upper thread tension must
be
cornpletely released only when
the presser foot is in fully raised position.
4.
Tighten screw A securely and replace face plate making
certain
that
all its screws are tightened uniformly.
Fig.
14
To Next Page
Loading...
