Sigma running out - TilersForums.com

[On one]

Hi all.
My Sigma is running 2mm in 600mm put of square.
Am I right in believing that you can adjust it withe the nut on the guide rail mechanism?

 

[LM]

Yes you can adjust it using the circled adjuster with an Allen key. Mark a tile at 300mm exactly top and bottom and move the bar to suit then retighten the adjuster.

 

[Old Mod]

@LEE MAC I get confused with this sometimes.
Am I right in saying, loosen outer nut, and hold fast with spanner, then adjust centre bolt with Allen key until correct, then re tighten outer Nut with spanner.

 

[LM]

@LEE MAC I get confused with this sometimes.
Am I right in saying, loosen outer nut, and hold fast with spanner, then adjust centre bolt with Allen key until correct, then re tighten outer Nut with spanner.

Basically you loosen the outer nut just a bit and press down so the action is in place. Then rotate the inner brass thread with an Allen key, this is off set so this action moves the measuring bar a few degrees either way as you slowly rotate it. Once it’s squared up simply tighten the outer nut again. It’s very simple.
I found the easiest way to do it is to place a roofing square on the spring bed with the wide edge between the spring plate and main splitting ridge, slide that down to the measuring bar and you can clearly see what alignment is needed. It takes less than a minute to do it.

 

[Old Mod]

Cheers Lee, yeah forgot you gotta press nut down.

 

[LM]

Cheers Lee, yeah forgot you gotta press nut down.

Yeah that’s how the off set bolt/thread then rotates off the main body.