Hi! I've taken my chair apart and I'm looking at how the lumbar support works. The mechanism itself seems fine, but the support is barely noticeable. It feels like the strap isn't pushing out enough because it's not tight enough. Is there a simple, homemade way to fix this?

I've recorded a short video showing how the mechanism works:

tomke92z said:

Hi! I've taken my chair apart and I'm looking at how the lumbar support works. The mechanism itself seems fine, but the support is barely noticeable. It feels like the strap isn't pushing out enough because it's not tight enough. Is there a simple, homemade way to fix this?

I've recorded a short video showing how the mechanism works:


View attachment 342179

Click to expand...

I've repaired both of mine and all I did was superglue the flaps back in place to where they were when fitted. I get the feeling you didn't relax the mechanism to its max and then pull the flaps back to exactly where they were before trying to reattach.
It does look as if you can undo what you have already done so no harm done.
Best of luck mate!

Hmm, I don't think I get it I didn't do anything yet, just took off the fabric to see what's under the foam. I didn't mess with the lumbar support yet. The strap is nicely attached to the flaps but the strap itself is too loose.

I dont know the seats.
But as you tension it just sort of pushes the cushion forward with a bit more support, yes?

If so could you not just put it to the slack position and the place some 5-10mm medium/high density foam in there.

J

Right, first off, those rows of stitches are not how they come from the factory. some previous owner must have taken it off and stitched them together like that. from the factory the flaps are glued down.
Secondly, I can tell from looking at the pics that the shamus who did the repair didn't pull enough of the flap material through each of the end metal loops before stitching it down.
I don't think mine had any name on it or anything like, so the material is not original either.
So the solution is pretty obvious. Undo the stitching, set the mechanism to its loosest setting. pull the flaps through until they are tight then restitch.

PS I can see that the replacement part has lines on it, presumably to tell the owner or person mending it where to place the flaps to, but if you cannot feel it pushing into your lower back when you tighten the mech, either the mech is beggared or the material is too loose.

As @marjon has intimated, it might also be that the foam in front of it has got flattened over years. But using common sense and ignoring the marks, testing it and judging it with safety pins or summat, you should come to a sensible position to glue or stitch it together again.