Simplicity Easy Lock 800 3 thread serger and timing positions

 

Simplicity  EasyLock 800 3 thread serger is almost identical to the BabyLock 3-407

Simplicity Easy Lock 800 3 thread serger

The Simplicity Easy Lock 800 3 thread serger is a well made early home serger, which also works well for many cottage sewing industry setups. It was used for professionally sewing curtains, by the lady we purchased it from.

Needle system DCx1 (industrial round shank)

Industrial style tension units have more adjustability, turning many times, offering fine tuning for stitches.

3 thread overlock

3 thread flatlock

3 thread blind hem

3 thread rolled hem

2 thread overlock 

2 thread flatlock

2 thread blind hem

2 thread rolled hem (built in subsidiary looper)

Built in stitch finger pulls back for rolled hem

Clear window in needleplate for easy view of stitch width setting

Push button stitch length adjustment (no screws to loosen or tighten, when changing stitch length.

Adjustable stitch width

Built on light with separate plug (not original)

Stitch length up to 6mm

Stitch width 2.5 to 5mm

This timing positioning is specific to this Simplicity Easy Lock 800 3 thread serger, including the needle system used. 

Always use the correct needle system when sewing, or timing a sewing machine or serger, since different needle systems are different lengths, and configurations, and it DOES matter, when timing any sewing machine or serger.

Remove presser foot, and raise upper knife by pushing it to the right and rotating it forward and up, out of use.

These are photos of where the needle, upper looper, and lower looper should be, at each point in stitch formation.

Be sure you have a new DCx1 (it should have a round shank, not a flat shank) needle correctly installed, before attempting to adjust the left and right timing positions of your upper and lower loopers, in relation to needle position.

Threading Order

Thread paths are color coded, making it easy to see which threads go in which tension units, and thread guides.

1.  Upper looper - the center thread cone of thread, and tension unit.

2. Lower looper - far right thread cone and lower right tension unit. You WILL need long, bent serger needles to thread this, but I also recommend buying a pack of the blue plastic dental threaders for flossing teeth with braces. This makes threading the lower looper easier.

3. Needle should be threaded last.

Needle going up, upper looper eye directly below needle point, see lower looper position, at its' furthest right location.

Upper looper furthest position left of needle, needle on way down to scoop upper looper thread off back scarf of upper looper

Needle lowest position, note position of upper looper eye.

Needle tip just above plate, notice upper and lower looper eyes are exactly above and below each other, vertically aligned.

SIMPLICITY EASY LOCK 800 SERGER OVERLOCKER VIDEO

Stitch width knobs adjuster is red

Simplicity Easy Lock 800 3 thread serger needleplate and feed dogs, view with presser foot removed.

3 THREAD ROLLED HEM SETUP

Turn handwheel so ☆star on it, lines up with the line on the side of the serger.
Turn stitch width knob until lined up with
☆ star on lower right stitch width window.
Loosen an inch or two of thread on your needle and both loopers, below your tensions, so you can easily, gently, pull your thread chain off the chaining tongue, BEFORE YOU LOWER YOUR RIGHT STITCH FINGER, to avoid breaking this stitch finger.
Push red stitch length button, behind left side door, while turning your handwheel, until you feel it Lock in, then you can turn your handwheel to change your stitch length to 1mm. (Silver arrow on stitch length mechanism indicates stitch length, near red button.)
Set stitch width to M
Tight needle tension
Loose upper tension
Tight lower looper tension
KNIFE MUST BE ENGAGED!

TEST sew a 2 inch fabric sample, then if necessary, tighten or loosen the tension units required, to get the stitch effect you want.

3 thread overlock stitch forms on chaining tongues, also called stitch forks. View is with presser foot removed.

Stitch samples woven polyester 3 thread overlock

Stitch samples 3 thread overlock, I think my stitch length was 6mm.

3 thread rolled hem

Rolled hem closeup 1mm stitch length on woven polyester

Stitch samples

Stitch samples close up green is 2 layers poly cotton mid weight jersey, blue is woven polyester 2 layers shirt weight, jeans is 2 layers very thick, heavy 100%cotton denim.
Notice stitch width window in needleplate.