0. Give split-funnels to OG or Grossmontage to clean. Mount back foot support for gate valves. Critical when we split.
1. Wait for vacuum division to come to install: IE514 cables to current CM52 module, ion pump cables + controls + turn on, RGA head + program + turn on
2. Vacuum division should also bring N2 gas to vent CARME. Ideally vent by Wed to avoid losing time. Remember to disable ion pumps and remove all cables when venting.
3. While waiting to vent, connect pneumatic hoses to motors box in CARME rack. There is one pneumatic in (central feedthrough) and four pneumatic out. See picture attached. Top two go to left pneumatic motor, bottom two go to right pneumatic motor. Of each set of two, one is for extending the motor and one is for retracting but unclear which is which. Try to connect and operate motor manually by pressing on buttons on top of pressure reducer to ensure everything works. Don't forget to remove the safety pin.
4. Some disassembly of the servo motors may be required to get them operational. Use the Windows ClearView program provided by Teknic to control servos and change the function of the limit switches. Download from https://teknic.com/downloads/ -> ClearPath -> Software -> ClearView Install.zip . There is a Linux version but I have never tested it. The code on the raspberry Pi cannot reproduce some of the functions in the official program due to library limitations (but can do other things the official program cannot do).
5. After venting CARME, split open at the COF600 flange close to the magnet. Open CARME by 1-2 cm, remove spherical washers from top of rail studs, and lift with crane. Make sure knife edges of the two halves do not touch. CARME currently has feet mounted and cannot easily be placed on a standard pallet. Either dismount the feet (not easy to remount), or find a pallet on which CARME can land on its belly only, or place CARME on pallet with feet and screw feet down? Discuss strategy with DR asap.
6. Install split-funnels on flanges/wire harnesses in use (no point installing on other flanges). This may require dismounting top flanges. Probably switch from 3 hole to 4 hole configuration with funnels.
7. Test detector support going to actuator rod without detector. Make sure you have all the parts, including bolt to secure support to rod. You may want to push the rod in via pneumatic motor (or by hand pushing the plate outside) to gain better access.
8. Take detector support on table, install *two* detectors on same support, and mount on actuator rod in XHV. Connect wires and close via jacking plates. Optionally, consider mouting empty support on other rod? May be useful for diagnostic/scraping?
9. Move XHV thermocouple feedthrough to top flange and connect one thermocouple per detector, one to the support, and leave one floating inside
10. If the motors are fully operational, check how far/close they can be actuated from chamber wall. If not, take some dimensions for future reference.
11. Lift CARME back in place. Close using Pfeiffer COF600 seal and ~72 Nm force per bolt. 80 Nm were required in DL. Probably get Grossmontage to do this. Use our long torque-wrench.
12. Connect to interaction chamber via bellows. Beware gaskets on one side are non standard. One appropriate gasket should be on top of bellows box.
13. Reconnect pumps, rebuild octagon, reconnect thermocouples, rebuild baking tent, bake. Make sure to label the NEG cables this time!
14. Activate NEG pumps following this recipe. ALWAYS monitor temperature and be ready to stop if detector temperature reaches 120 C. NEG temperature does not drop immediately, don't wait until it is too late.
If temperature is increasing too quickly (check rates/h), decrease activation power in increments of 25 W. Remember to flash ion pumps.
A. Start from D2000. Activate one at a time with T 400 C, t rise 30 min, t hold 90 min. Activating a second D2000 while the first has reached its hold state seems safe. Leave at 250 C to keep clean.
B. Continue with UVH1400 furthest from the detector (DSSD wall chamber). Activate at P 200 W, t rise 30 min, to hold 90 min. Finish one set of two before moving to the second. Leave at 50 W to keep clean.
C. Continue with UHV1400 in intermediate chamber. Activate at P 150 W, rest as above. Leave at 50 W to keep clean.
D. Continue with 2xUHV1400 closest to detectors. Activate at P 70 W, rest as above. Leave at 50 W to keep clean.
E. Finish with 3xUHV1400 closest to detectors. Activate at P 90 W, rest as above. Turn all NEGs off when activation of 3x is complete.
F. Let chamber cool. Activate ion pumps at room temperature. Section off turbo pump. |