As on any Singer sewing machine, the balance
constant use. Use a castor base oil as
wheel of the 7-33 should always turn toward the
recommended by the manufacturer.
Needles and Thread
The procedure for ordering needles is the same
The 7-33 machine is oiled at all the oiling
for the 7-33 machine as for the 31-15 sewing
points shown in figures 9-17 and 9-18. The
machine. Refer to table 9-2 for the relative sizes
machine should be oiled twice daily when it is in
of needles and thread.
Figure 9-17.Oiling points at the front of the 7-33 sewing machine.
Figure 9-18.Oiling points at the back of the 7-33 sewing machine.