SINGER 319K - Manual (Page 44)

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reset pin in one of holes at left of previous setting.
This resetting will produce less tension at "0”. Repeat
this process until minimum desired tension
obtained.
is
If there is no tension at press in dial G2 and
reset pin F2 on nut in one of holes at right of previous
setting, repeating this process until a slight minimum
tension is obtained. The tension on thread take-up
spring 02 and stroke of this spring should be just
sufficient to take im slack of needle thread until point
of needle reaches fabric in its descent.
To adjust tension on thread take-up spring 02, remove
tension disc assembly, disengage end of spring from
groove in tension stud, revolve spring and place its
end in the groove which produces correct tension.
To regulate stroke of thread take-up spring 02 loosen
screw Q2, Fig. 69, and turn the thread take-up
spring regulator P2, Fig. 69 until correct stroke
is obtained, then tighten screw Q2.
TO CHANGE THE THROAT PLATE
When changing from All-purpose Throat Plate to
Straight Stitching Throat Plate or Embroidery Plate,
FIRST raise needle to its highest point, set the needle
position lever at its central position and set bight lever
at "0”. Remove presser foot. Tilt the machine head
slightly with right hand.
With the left hand tilt the rounded end of throat plate
by pressing it up from the underside enough to clear
the pin and feed dog as shown in Fig. 70. Then draw
the plate to the left.
Fig. 70. Changing the Throat Plate
To insert the Throat Plate, slip both ends of its
^ring beneath the edges of the opening, as shown in
Fig. 70, and, while it is slightly tilted, slide it over the
feed dog, into position.
Lower the machine head into place.