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Message ID: 49     Entry time: Mon Jul 29 17:15:35 2019
 Author: Loïc Amoudry 
 Status: Fixed 
 Type: info 
 Category: mechanics | lasers and optics 
 Location: Optical room 
 Title: Spin coater air supply removed and front panel changed 

Spin coater firstly needed vacuum and air supply. The air supply being useless for our experiments, it has been disabled.

The process is the following and is reversible:

1)            Remove the hub from the top of the spin coater, (see picture 1), 4 screws hold the hub in place, once these screws are removed the hub will lift off the motor shaft.
2)            Remove the 2 screws holding the stainless steel top decks in place (see picture 2), please be careful when removing the top deck as the lid switch wire will be attached.
Once these have been removed, you can access the inside of the spin coater.
You must add a bypass wire to the timing block (see picture Purge Bypass 1), the wire must be connected to the A1 and 28 ports on the timing block and remove the red wires from connexion. This will now cause the spin coater to bypass the purge check switch and allow the machine to boot up without air/nitrogen being supplied. To revert this change, simply remove the bypass wire you have installed and plug the 2 red wires back to A1 and 28.

The "enter" button of the front panel had some trouble and has been changed.

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