Check the conditions alongside each answer. Foot attachment, shank type and adapter requirements are separate; one does not establish universal accessory fit.
Presser feet and adapters
How does the ordinary overlock foot attach?
conditional
Native snap-on feet. With power off and unplugged, raise the presser foot, turn the handwheel toward you until the needles are highest, then press the button on the back of the presser-foot ankle to release the foot. Put the replacement foot pin directly under the ankle groove, lower the presser foot, and press the button so the foot snaps into place.
This proves only the documented foot-to-ankle pin/groove procedure; low-shank naming, adapter fit and optional or third-party foot compatibility remain unknown.
Use size 12/80 for light fabric and size 14/90 for medium or heavy fabric.
These are fabric-conditioned sizes from the exact S0080 manual; needle-system naming remains held because the same manual uses both EL x 705 and #2022 wording.
Turn power off and unplug, raise the needles fully, loosen but do not remove the selected clamp screw while holding the needle, insert the replacement fully with its flat surface to the back, then tighten securely without overtightening.
If using one needle, slightly tighten the empty clamp screw so it is not lost.
Use one or two needles according to the selected stitch; when both are installed, the left needle sits slightly higher than the right and they are not level like a conventional twin needle.
What preparation and order should be used for threading?
conditional
For easier threading, raise the presser foot and set the tension dials to zero. Thread the upper looper, lower looper, right needle, then left needle; restore the stitch-recommended tension before sewing.
The tension dials are set to zero only for threading and must be restored before sewing.
How should the machine be re-threaded after a thread breaks?
supported
After a thread breaks, unthread the needles, unthread both loopers, then thread the upper looper, lower looper, and needles from right to left in that order.
How does the ordinary overlock foot attach?: With power off and unplugged, raise the presser foot, turn the handwheel toward you until the needles are highest, then press the button on the back of the presser-foot ankle to release the foot. Put the replacement foot pin directly under the ankle groove, lower the presser foot, and press the button so the foot snaps into place.
Turn off the main power switch and unplug the machine.
Raise the presser foot.
Turn the handwheel toward you until the needles are
button on the back of the presser foot ankle
pin (B) right underneath
groove of the ankle (C)
foot will snap into place
Optional feet are not included.
Which needle sizes apply?: Use size 12/80 for light fabric and size 14/90 for medium or heavy fabric.
How should the needles be installed?: Turn power off and unplug, raise the needles fully, loosen but do not remove the selected clamp screw while holding the needle, insert the replacement fully with its flat surface to the back, then tighten securely without overtightening.
How should a needle be checked before use?: Place the needle's flat side on a flat surface and check that the gap stays consistent; never use a bent or blunt needle.
When should the needles be replaced?: As a general rule, replace the needle after 6–8 hours of actual stitching time.
How many needles can be used?: Use one or two needles according to the selected stitch; when both are installed, the left needle sits slightly higher than the right and they are not level like a conventional twin needle.
Use SINGER® Overlock needles EL x 705 sizes 90/14 and 80/12.
You can sew using one or two needles depending on what stitch to use.
Never use a bent or blunt needle.
needles should be changed every 6-8 hours
Turn off the main power switch and unplug the machine.
flat surface to the back
Insert the needle into the needle clamp as far as it will
Do not over-tighten the screw
left needle is
higher up than the right needle
Which needle sizes apply?: Use size 12/80 for light fabric and size 14/90 for medium or heavy fabric.
What preparation and order should be used for threading?: For easier threading, raise the presser foot and set the tension dials to zero. Thread the upper looper, lower looper, right needle, then left needle; restore the stitch-recommended tension before sewing.
How should the machine be re-threaded after a thread breaks?: After a thread breaks, unthread the needles, unthread both loopers, then thread the upper looper, lower looper, and needles from right to left in that order.
Always
start threading the loopers and then the needles from
right to left
raise the presser foot
set the thread tension dials to zero
If the threads break during sewing, re-thread all
Unthread the needle(s)
Unthread upper and lower looper
Thread the upper looper
Thread the lower looper
Thread the needle(s) from right to left
size #12/80 needles
size #14/90 needles
Unknown is not incompatible. A missing answer means the current official evidence does not support one yet.
Specifications
Documented machine facts
Multiple cited representations for one field share one row. SewGraph preserves every value and exact proof passage; it does not guess which representation is “raw” or “normalized” when the public projection does not label that distinction.
Open the exact OEM PDF page or captured HTML edition when a safe destination exists; otherwise SewGraph labels the OEM support-page fallback honestly.
Singer S0080/S085
instruction manual
Open official source destination · 1 unique proof passage:Proof E1
Evidence library
5 exact proof passages from 1 OEM document
Every passage below says exactly what visible fact it proves. Repeated references to the same locator are counted once; identity evidence never counts as compatibility evidence.
Open exact proof passages · 5 unique proof passages
2 supported answers and 6 answers with conditions or remaining limits. Evidence coverage is not a probability of accuracy.
Unresolved owner questions (1)
Which optional or third-party feet fit?: Not established — Not yet verified: The exact reviewed manual does not establish optional-foot part numbers, shank height, universal holder geometry, adapter fit or third-party foot compatibility.