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Trolley Operation Manual » History » Version 15

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Ran Hong, 05/07/2019 10:12 PM


Trolley Operation Manual

Important Notes

  • Do not operate the trolley unless you are trained
  • Make sure the RWP for the hall access is signed (need to sign every month), also make sure you have read and signed the JHA for doing the trolley checklist.
  • Wear dosimetry badge when going into the ring to do the trolley checklist
  • Need 2 people to go into the ring for trolley checklist (MR region requirement: need two people to access MR region)
  • If anything strange happens to other systems during a trolley run such as Quad spark, abort the trolley run right away and call RC
  • Trolley abort switches off the trolley motor so we have to turn it on before clicking on the trolley motion switch again
  • Alarm: Cannot disable by clicking reset, go to ODB/equipment/GalilFermi/Alarms/Motiontrip change it to n and click enter then go back and reset in status page
  • If something strange happens to the trolley system (unexpected trolley alarm, etc.) abort trolley motion and contact a trolley expert right away (Ran & Simon)

Trolley Check List (Activities in the ring are marked as Bold)

  • Keep the main DAQ run untouched.
  • Fill out the electronic trolley check list (in the Fermilab ELog drop down menu). Check each entry in the checklist and attach screenshots (or pictures using phone) for the Kicker GUI, Quad GUI, Collimator control, FiberHarp control and Plunging Probe coordinates after checking all of the respective systems as detailed below:
    • Beam off and keys to go into the ring:
      • If in controlled access: Call main control room and get 2 keys (1 for yourself and 1 for a shifter, checking out the controlled access key automatically stops the beam). Fill the details in the control access sheet. Get 2 MR keys from person in charge at control room.
      • If not in controlled access (Beam is already off in this case, so get keys for ring access): Get 2 High Bay keys and 2 MR keys from person in charge at control room. (1 for yourself and 1 for a shifter)
      • Hold on to your keys until you finish the trolley run
    • Quads off: Go to quads GUI. Set voltage to zero and pulse it at Burst mode. Make sure the voltage is coming down. Stop pulsing when voltage is atleast below 50 Volts(Note: Values are in KV on the GUI, It might take some time to come down to 50 volts so you can proceed with the rest of the checklist and stop pulsing before the trolley run).
    • Collimator : Main DAQ —> collimator control. On the right side click on retract and wait till status shows retract 1, do one at a time. Make sure the retracted status for all 5 collimators are at 1. Also make sure the demand status is 'retracted' for all collimators. The collimator control front end must be ON. If it cannot be turned on, it indicates that the hardware controller is not powered, and in such case the trolley motion hardware interlock will not be cleared, and a motion trip alarm will be generated when the trolley motion control frontend is switched on.
    • Fiber harps: Make sure Fiber harp control is running (green) in the Main DAQ status page. Then , Main DAQ —> Fiber harp control, same procedure as collimator. Make sure retracted status for all 4 are at 1. Also make sure the request rectract status is 1 for all 4. The fiber harp control frontend must be ON. If it cannot be turned on, it indicates that the hardware controller is not powered, and in such case the trolley motion hardware interlock will not be cleared, and a motion trip alarm will be generated when the trolley motion control frontend is switched on. Also double check if the fiber harps are out in the ring.
    • IBMS3: Go into the ring and check that the sliver color screw holding the IBMS3 in the retracted position can be seen through the glass window. ( need 2 people present anytime you go into MR region). If retracted, this is what you would see through the IBMS3 glass window.
    • Plunging probe: Take the MR flash light from the MR-cabinet and make sure the plunging probe is out of the way for trolley by looking through the glass flange ( replace the aluminum foil on the flange when done). Also check Plunging Probe Control Page in the field DAQ and make sure (x,y,z) = (-4005±10, 792±10, 543±5 )
    • Kicker Magnetometer: Make sure the kicker magneometer is in the retrated position and held with rods and cable ties. (The kicker magnetometer is located just to the right of Bazooka 1. Lift up the insulation from the Velcro at the bottom to see the kicker magnetometer, and reattach the insulation after checking )
  • Get "Approval" from Run Coordinator on the checklist (If RC is not available at the control room, call for a verbal confirmation).
  • Post a fermi elog saying that you finished trolley checklist and you are starting the trolley run
  • Start a new UW elog for this trolley run, here is an example [UW Elog](https://muon.npl.washington.edu/elog/g2/Trolley+system/651)