How do you adjust timing on Rex commercial blind stitch?

This will depend on using the proper needle and thread on this commercial machine.
Cheers,
Embroidery Services
San Diego, CA

Hmm, the models I found on the internet are straight-stitch only. Nice machine!

How to Thread Rex 26 188 Walking Foot Industrial Sewing Machine TDU N62

Rex 26 188 Machine

check with these sites and see if they can help you

https://www.sewingmachineoutlet.com/catalog/category/view/id/486


Rex Artek RX 518 Portable Blind Hem Stitch Hemmer Metal Sewing Machine

As long as your machine is not skipping stitches the timing should be fine. Three things to check: take your thread tension assembly apart so you can remove the discs and clean. Debris often gets between them and causes irregular tension. Next check the point of the looper to see if has a burr. If so take 600 sandpaper or crocus cloth and remove. Last-Check the upright pin that the looper passes--it too may have a burr.

No luck findong your but Go to www.reliablecorporation.com. Under products check out the MSK555 blindhem machine. It is the same as the Rex 518. To the right of the page is a category to download the manual. It is very helpful.

Good luck

Thanks

i was able to find manual at www.ifixmachines.com

Don't.
Simple as that. If you don't know how to, you are not a tech. thus take it to someone who has had training, been shown first hand and knows how to.
I mostly deal with domistic sewing machine, but I do deal with a few industrials as well. these sorts of machines don't tend to go out for no reason. if you play with it, trust me on this "YOU WILL MAKE A MESS OF IT" unless you know what you are doing BEFORE you start doing anything with a screw driver.

How do you know the timing is out to start with? good thread, fresh NEW needle that should be in this machine. don't use a needle that is close. use the right one. and test, adjust tentions to suite.

retime your hook with relation to your needle the hook is slightly out of time causing it to "slip the loop" the hook should hold the loop until the needle retracts forming the chain

When I purchased my blindstitch machine, I was also told to kind of snap the fabric as you pulled it our of the machine. Like you, I found that to be a little risky. Sometimes I'd just unravel what I'd sewn. I have found the most dependable thing to do is: Before removing the fabric from the machine, snip the thread between the fingers of the looper as it approaches the needle. If the loop is broken, the chain stitch will not pull out. If you cut the loop as it approaches the needle, you will get a bit longer tail so the needle doesn't come unthreaded on the next run. If you find you need a bit longer thread tail, you can pull a bit on that loop before cutting. As long as the needle has passed through the loop on the previous stitch, you'll be fine.

When you tighten the belt it is a problem if it isn't adjusted right. You need to loosen the belt again. When you are pushing on the foot control the motor will begin to run. At the same time you can adjust the belt by carefully moving the motor. You will notice the motor speed will change as you do this. Stop adjusting the motor belt when you hear the motor speed at it's highest speed. Tighten down. Now, give it a try.