Contact me at Starrett and I can email you the instructions on how to change the vial only if you want. The other option is to purchase a new tube and plug assembly (the silver tube with the vial). That is much easier to do. After, you can always send the old one in for repair. Third option is to send out the tube and plug assembly to be repaired.
Most people will change the vial only the first time, after that they go with option 2 or 3.
My email is
[email protected]
Starrett Tech Support
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