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Message ID: 557     Entry time: Wednesday, October 13, 2021, 08:35
Author: Aaron Schmidt 
Target Material:  
Target Oven W.O#:  
Source:  
Status: Problems 
Subject: Troubleshoot - Pump down issues. 

Swapped out the Cu gaskets for SS gaskets in the HS top lines. (x2)

Wednesday, October 13, 2021, 08:35: Roughing.

Wednesday, October 13, 2021, 08:50: Turbo pump on. TP Current 6.06-6.10A.

Wednesday, October 13, 2021, 08:59: TP maxed out at 3-4 KRPM, yet went "Green/On".

Wednesday, October 13, 2021, 09:00: Change FULL to Low setting. Restart. TP Current 6.15A.

Wednesday, October 13, 2021, 09:08: Timed out. Restarted from 5 KRPM. 

Wednesday, October 13, 2021, 09:14: Stalling @ 5 KRPM. Stop TP. Contact vacuum group.


Monday, October 18, 2021, 09:03: Roughing. Reboot TP controller. 

Monday, October 18, 2021, 09:25: Walkthrough soft start w/ vacuum group. TP timed out. Soft start failed. 

Monday, October 18, 2021, 09:31: EVAP 2 vented. TP to be disconnected & removed.

Monday, October 18, 2021, 09:55: TP removed. Quick check, barely spins when spin by hand gently. Replacement or refurbishment needed. 


500 lpm turbo pumps installed. TV551 Varian. SN: 202311 (Slightly active from BL1A - will not cross contaminate. Field only - Tagged) 

Wednesday, October 20, 2021, 11:35: Roughing. 

Wednesday, October 20, 2021, 11:52: TP on. 

Wednesday, October 20, 2021, 11:59: TP at speed. 

Wednesday, October 20, 2021, 12:02: Vacuum @ 6.13e-05T. Open HS waterline.

Wednesday, October 20, 2021, 12:03: Vacuum @ 5.63e-05T & dropping.

Wednesday, October 20, 2021, 12:04: Vacuum @ 5.32e-05T. TGHT PS on. 

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