6
A
C
-4-
8. Test operation(Fig.6)
Carry out the test operation when start up a
new sewing machine for the first time, or
restart after a long period of non-use.
Remove the rubber cap (A) on the top of the
arm and face plate, fully lubricate the parts
showed by the arrows.
Install the face plate again, lift the presser foot
and operate the machine at a lower speed of
1000-1500spm, and observe the oil running
through the oil gauge window.
After one month, then the speed can be
increased according to the different sewing
operation.
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