Vacuum Cart Operation (Brady Robertson)

This document will tell you how to start up and shut down the carts, and troubleshoot. 

documents:

LCLS Procedure for Vacuum Qualification RGA Scans

MKS RGA hardware manual

MKS RGA software manual

Amanda's doc: RGA Cart Maintenance and Operation

.

Start up procedures:

General

prep

Bring an N2 cylinder, regulator, and clean hose. Attach that to the cart.

begin venting the cart with the N2

remove the blank at the end of the hose

Attach the cart to the to-be-qualified chamber, but do not(!) valve in.

valve in to the other chamber only after qualifying the cart itself first with Peter Stefan.

Cart specific

Carts 1 & 2

Cart startup procedure:

turbo controller, bottom right: 

Carts 3 & 4

valves:

Cart startup procedure:

1. Plug in the cart

2. Hit start (F1, circled in pic). This will turn on the roughing and turbo

1. 1. 1. Open the gate valve on top of the turbo
      2. When turbo hits ~200Hz: Turn on the CCG
      3. Wait for turbo to settle at 1000Hz and 1A (info on display).

1. 1. 1. 1. If this happens, you’re DONE!
         2. If this does not happen, begin troubleshooting: checking pressure, looking for leaks.
            1. If issues persist, initiate cart shutdown:

1. 1. 1. 1. 1. 1. open the N2 cylinder and regulator
               2. confirm N2 is coming out of the cart’s PRV
               3. close the gate valve on top of turbo
               4. hit Stop (also F1). This stops the turbo + roughing, and automatically vents through the turbo.
               5. open the small N2 valve on left side of cart, this vents N2 above the closed gate valve.
               6. wait for vent to complete, confirm N2 is coming out of the cart’s PRV
               7. close the small N2 valve on left side of cart, close the N2 cylinder

Cart 5

Carts 6 & 7

don't exist... yet.