Singer Class 457 G 1 - Needles; Thread

If the hook receives on excessive amount of oil which
cannot be reduced by the regulating screw, check to be
sure that
1. the oil wick has not become detached from
the filter screw,
2. the filter screw is securely tightened,
3. the oil return passages
In the hook shaft, the
bushing or in the hook bushing housing hove
not become clogged with lint or other fo
reign matter.
Todetermine the proper flow of oil to the hook clean
the hookand, with the machine running at normal ope
rating speed, hold a small piece of white paper under
the hook for approx. 15 seconds without moving the
paper or changing the speed. If the paper shows an oil
streak of approx. 1/32 inch = 0.8 mm width the hook
receives sufficient oil.
NEEDLES
The needles recommended for this machine are Ori
ginal SINGER-Needles Cat. No. 1905 (Syst. 265} chro
mium finish, available in the sizes 7-25.
The size of the needle to be used should be determin
ed by the size of the thread which must pass freely
through the eye of the needle.
Rough or uneven thread
or thread
which passes with difficulty through the eye
of the needle will interfere with the successful operation
y the machine.
Orders for needles mustspecifythe quantity required,
the catalogue number, the size number and the
finish.
Example: 100 - 1905 - 14 - 1
100 (Needles) 1905 (Cat. No.) 14 (Size)
1 (Chromium Finish)
SINGER-Needles and packets are stamped with the
trademark "SINGER".
THREAD
Only left twist thread should be used in the needle
(upper thread).
Either left or right twist thread can be used in the
bobbin (bobbin thread).
Figure 5
To determine the thread twist hold the thread as
shown in Fig. 5. Turn the thread toward the operator
between the thumb and forefinger of the right hand; if
left twist, the strands will wind together; if right twist,
the strands will unwind.
Based on past experience the sizes of the needles and
threads recommended for this machine are as follows:
Thread 60/3 70/3 80/3 - Needle Size No. 14
40/3 50/3 60/3 - Needle Size No. 16
30/3 40/3 - Needle Size No. 18
From the library of: Superior Sewing Machine & Supply LLC