SINGER 15-91 User Manual

Page 25

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stud, being sure that the lug (M, Fig. 19) engages

the short recess (P) to prevent the plate from turn

ing on the stud. Next, place the two tension discs

(H) on the stud, having the flat thread-bearing sides

of the discs together; then replace the indicator (G)

with the large open side facing end of stud so that

the plus and minus signs will be readily seen from a

sewing position as shown in Fig. 20. Insert the ten

sion spring (F) in the indicator so that the first half
turn of this spring will straddle the lower half of the

tension stud. Guide the stop washer (D) onto the

stud so that the extension (S) will be above the
tension stud as shown in Fig. 20.

If the spring and stop washer are in correct posi

tion, the extension will clear the first half coil of the

spring as shown in

Fig. 21.

Next place the

numbered dial on

the stud so that the

numeral 2 is oppo

site the stop washer

extension (S), then
push the dial to

compress the spring

so that the thumb

nut can be turned

onto the stud, carefully guiding the pin in the thumb
nut into one of the holes in the numbered dial. Then
lower the presser bar and turn the thumb nut (A)
to the left until it stops at “0.” Thread the tension

and pull the thread through the tension discs to test

the amount of tension at the“0” position. At this

E1Z769,

. 21