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Leica S430 Scanning Electron Microscope (view source)
Revision as of 18:55, 21 September 2014
, 18:55, 21 September 2014→Maintenance Log
! Maintainer
! Maintainer
! Description
! Description
|-
|9/20/2014
|Ryan Pierce
|Finished vacuum system repair. Had previously replaced the air admit solenoid with an Edwards C41723000 24V NO solenoid. This produced a vacuum around 1.03e-5 torr. Added custom made adapter from NW10 flange to the fitting on the old solenoid that attached to the air dryer. This adapter was made by cutting apart the old solenoid, TIG welding a pipe compression fitting, which mechanically held the hose fitting. This was not airtight, so was sealed with epoxy. Chamber now vents properly and holds a vacuum. Re-assembled desk. Dried silica gel in an electric oven at slightly under 200F for several hours in a baking dish, stirring periodically, until bright blue color returned, and re-assembled air dryer assembly. Noted oil in rotary vacuum pump was running low, topped it off.
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|6/15/2014
|6/15/2014