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SPI 18” digital height gauge problems

Mwmx54

Plastic
Joined
Oct 24, 2018
I have an 18” spi height gauge, that I’m having problems with getting the lower 6” or so to read, it all works normally above that, but Once it hits a certain point it just goes to some random number and doesn’t move, I tried resetting the origin in the lower area and it just resets to zero, then doesn’t change until I hit about 6” then it starts reading, maybe the scale is cracked, but I thought I’d ask if anyone else has had a similar issue that they fixed, I don’t see any marks that could have caused the scale to crack, but who knows, my thoughts would be that even if it cracked at that point, shouldn’t I be able to get below and set the origin and work from the lower part?
Thanks
 
Clean the sliding surfaces really well with denatured alcohol or Zippo lighter fluid. Move the reading head all the way to either end to get to it all. Lighter fluid works great on dial calipers too.
 








 
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