Maintenance; Machine Head Cleaning; Oil Change And Filter Cleaning; Safety Inspection - Singer 321C Instruction Manual And Parts List

4.1
Machine
Head Cleaning
4.2
Oil Change and
Filter Cleaning
4.3
Safety
Inspection
Clean the machine head periodi-
cally with a dry soft cloth to remove
the excess of dust in the head. Do
not use any kind of solvent material
to clean the surface.
If the machine has not been used for
a long time, lubricate the superior
part of the needle bar, guides and
loopers before returning to opera-
tion.
Oil should be changed every four
months. When changing the oil fol-
low instructions on item 3.3.
Frequently check if all safety de-
vices are properly installed and
adjusted.
Check all screws that fix and hold
the machine head that should be
properly tight.
Check and be sure the belt is not
excessively worn out and see that
it has the proper tension.

Maintenance

Oil filter should be cleaned every
month or replaced for a new one
as necessary. To clean the filter or
change the oil, follow instruction in
item 3.3.
Check and be sure there is no mo-
tor overheating and be sure that
the cable and electric connector
are not damaged.
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