The tread from the lower looper is not being picked up by the upper looper how o i fix this?

First re-thread the machine starting with the upper looper(3), then lower looper(4), then the needles(2,1). If that doesn't fix it, it may be a matter of loosening the needle tension. Lastly slowly turn the handwheel and see where the loopers cross. The upper looper should come in just behind the scarf of the lower looper without any contact on the forward motion. Otherwise Your needlebar height could be off. Timing a serger is a very precise process and making adjustments could throw it out even further.

Consult your owner's manual and verify that you are threading the lower looper correctly--not skipping any steps, making sure the lower looper thread crosses OVER the upper looper thread in its last step before going under the presser foot.

...

The Janome 534 that I know is an overlocker (or serger). If this is so, then when you open the front flap / door there should be a diagram showing the thread path. It is important though to first thread the inner (upper) looper, then secondly the outer (lower) looper, thirdly the inner (right) needle, and lastly the outer (left) needle.

The upper/lower looper need realignment, requires a qualified technician to do this.

No I am having the same problem and sorry but your all wrong
its nothing to do with treading.....
my upper looper is hitting the lower looper followed by freezing up
I need help too...their tension is fine the actual parts are colliding

Recommend you remove all the threads and rethread from the beginning. ALWAYS RAISE THE PRESSER FOOT when threading and thread the upper looper first, the lower looper second. Sergers sometimes are temperamental about threading. When in doubt, start over from the beginning.

Then it's one of two things. First try setting your lower looper tension on 3 and see if that works. If not set it back on 4 and cut ALL your threads and re-thread the machine STARTING with the UPPER looper, then the lower looper, then the right needle, last the left needle if you're sewing a 4 thread overlock stitch. Make sure the threads aren't twisted in the thread guide. Make sure the lower looper thread is OVER the elbow on the upper looper and over the upper looper thread. Let me know if this works. We'll work until we get it fixed!

How to Thread Juki MO-134 Serger from watching lady at Lyles. Turn upper blade up. Push in first then turn up.It makes threading easier. Blue Thread upper looper first. Pull thread through tension knob. Don'tjust lay it there. (She thought that is what I must have done) Orange Thread lower looper next. Pull thread through tension knob as inthreading upper looper. Adjust lower looper so it is right nextto upper looper so that their points are almost together and directly belowsewing needles. Lower looper will be in front of upper looper (I believe). With tread from upper looper pulledback, slightly lift lower looper above upper looper and thread. I think this isright. Pull thread back with other thread. Tension is the key. Remember that. Yellow: Thread left needle first.Remember tension. Pull thread through curled wire on left side of needle arm. Green: Thread right needle. Rememberabout tension. Pull thread through curled wire on right side of needle arm. b> Note: Before sewing turn the wheel tomake sure the stitches are going together correctly.

Loosen the upper tension looper thread by turning the dial to a lower number. The upper tension looper is to tight and pulling the lower looper thread up. Also might want to loosen or tighten the left or right needle tensions depending on the results you get. It will be a trial and error exercise to get the correct adjustment between the loopers and needle thread tensions. Otherwise, you might want to take it to an authorized husqvarna viking dealer for service. You can locate a dealer near you by visiting the husqvarna viking website and clicking on the Dealer link on the left-hand side of the page - http://www.husqvarnaviking.com

Good luck.

Solution taken from "Handbook for Huskylock Sewing Machine Models 1001L/1000L/1000"

1. Raise the presser foot by using presser foot lever. When the presser foot is raised, the two thread tension discs in the thread tension control panel are released so that thread passes freely between them. Otherwise thread tension may not be correct.

Important! When threading the needle, always be sure to lift the presser foot lever, and also take care to thread in the proper order.

Threading order:
1. Upper looper thread (green)
2. Lower looper thread (blue)
3. Double chain stitch looper thread (purple) in case of 5 thread stitch or double chain stitch
4. Right needle thread (red)
5. Left needle thread or double chain needle thread (yellow)

Caution!
Because the left thread tension dial (yellow) is used for either the left needle or the double chain stitch needle, these needles will never be used at the same time.

Upper looper (green) sequence:
1. Thread holder (silver triangle openings attached to thread holder stand)
2. Thread guide (flat silver clips just behind thread tension disc)
3. Thread tension disc (circular knobs with numbers for tension setting)
4. Pull thread around upper looper guide and upper looper
5. Pull thread into hole of upper looper

Lower looper (blue)
Repeat 1, 2, 3.
4. Pull thread around guide (see color coded chart inside front serger cover).

Easy threading mechanism (for lower looper)
1. Pull out the lower looper threading lever
2. Thread the lower looper and position the thread on hook of the lower looper
threading lever.
3. Push the lower looper threading lever back to its basic position while
holding the end of the thread.

Caution:
When returning the lower looper threading lever, always make sure that the two
blue triangle marks (directional arrows) meet each other.

Right needle thread (red)
Left needle thread (yellow)
Important: Thread the needles after threading of lower looper and upper looper.
First raise the presser foot lever, and then thread the needle threads in order shown in color coded thread guide.