As on any Singer sewing machine, the balanceconstant use. Use a castor base oil aswheel of the 7-33 should always turn toward therecommended by the manufacturer.operator.Needles and ThreadLubricationThe procedure for ordering needles is the sameThe 7-33 machine is oiled at all the oilingfor the 7-33 machine as for the 31-15 sewingpoints shown in figures 9-17 and 9-18. Themachine. Refer to table 9-2 for the relative sizesmachine should be oiled twice daily when it is inof 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.9-14239.274239.275
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