Kenmore 385.16677 Owner's Manual page 63

Threading the Machine (3 threads)
Using the needle on the right only
(for regular three-thread serging)
Turn off the power switch and unplug the machine.
Remove the needle and the thread on the left. Then
retighten the needle clamp screw on the left to
prevent losing the screw.
(_ Needle on the right
(_) Needle clamp screw on the left
Using the needle on the left only
(for wide three-thread serging)
Turn off the power switch and
Remove the needle and the
Then retighten the needle cla_: jew
to prevent losing the sc[ew.
Needled !_ i_ii :
(_) screw on the !!:gh_ :
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