1. INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD The National Institute for Nuclear Physics and High Energy Physics Kruislaan 409 1098 SJ Amsterdam PO Box 41882 1009 DB Amsterdam The Netherlands phone: +31 20 592 2000 fax: +31 20 592 5155 fmul@nikhef.nl

2. ELLIPTICAL HEAD INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 2

3. Before disconnecting the elliptical head, disconnect first one flange one the beam volume and then one flange on the detector volume. VENTING USE: PURE NEON FOR THE BEAM VOLUME! AND NEON FOR THE DETECTOR VOLUME! W A R N I N G AFTER VENTING FIRST OPEN VALVE SV421 ! INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 3

4. SWITCH OFF THE TURBO PUMP TP 301 INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 4

5. DISCONNECT THE VENT VALVE CONNECTOR INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 5

6. TAKE OFF THE FRONT PART FROM THE PROTECTING COVER INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 6

7. CLOSE AIR PRESSURE VALVE ON VESSEL STAND INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 7

8. DISCONNECT 2 AIR PRESSURE CONNECTIONS WITH WRENCH 14 INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 8

9. DISCONNECT CONNECTORS VALVE SV421 INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 9

10. DISCONNECT BELLOW INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 10

11. DISCONNECT ALL CABLES 220 V (3x) PT 100 (3x) TP304 PI 301 PE301 AP411 DP411 OS 412 A & B OS 413 A & B OS 411 A & B INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 11

12. DISCONNECT WATER COOLING PLATE (L – key number 4) DISCONNECT WATER COOLING (Wrench 14) DISCONNECT WATER COOLING (Wrench 14) DISCONNECT WATER COOLING PLATE (L – key number 4) INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 12 Switch of water supply

13. Trolley under the valve DISCONNECT VALVE GV302 DISCONNECT CONNECTOR GV302 INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 13

14. Disconnects 2 M6x12 hexagon socket head screw from the wake field suppressor at the spoke in side of the vacuum vessel! (Use L – key number 5) INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 14

15. DISCONNECTING THE ELLIPTICAL HEAD M12 - WRENCH 18 LIFTING BRACKET FLANGE SUPPORT M12 - WRENCH 18 INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 15

16. SLIDE THE ELLIPTCAL HEAD INTO THE SLOTS AND COVER THE VACUUM SIDE WITH ALUMINUM FOIL INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 16

17. USED MATERIALS: Helicoflex ring ALL HEXAGON HEAD SCREWS FOR UHV FLANGES: STAINLESS STEEL A4 SPECIFICATION : LO-GE N° 507 Partly threaded (b) Steel grade (ISO 3506) : A4 - 100 Traction resistance Rm : 1000N/mm2 Elastic limit Rp 0.2 : 940 N/mm2 Elongation at break A5 : 9% INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 17

18. ALARM NUMBERS INSTRUCTION DISCONNECTING THE ELLIPTICAL HEAD 18 Delio DUARTE RAMOS from AT/VAC http://consult.cern.ch/xwho/people/605500 Tel:72465 (from outside: +41 22 76 72465 ) GSM: 165130 (from outside: +41 76 487 5130 ) Office: 112 1-010 Mailbox: M18800112 E-mail: Delio.Ramos@cern.chDelio.Ramos@cern.ch Homeinstitute: CERN Adriana ROSSI from AT/VAC http://consult.cern.ch/xwho/people/479442 Tel:75978 (from outside: +41 22 76 75978 ) GSM: 163263 (from outside: +41 76 487 3263 ) Office: 30 1-010 Mailbox: M2881030 E-mail: Adriana.Rossi@cern.chAdriana.Rossi@cern.ch Homeinstitute: CERN Luc JANSEN from PH/ULB http://consult.cern.ch/xwho/people/476681 Tel:74024 (from outside: +41 22 76 74024) Office: 13 1-018 Mailbox: F2630013 E-mail: lucj@nikhef.nllucj@nikhef.nl Experiment: LHCB Homeinstitute: NIKHEF Martin DOETS from PH/ULB http://consult.cern.ch/xwho/people/513873 Tel:77108 (from outside: +41 22 76 77108 ) Office: 22 1-006 Mailbox: E0530022 E-mail: martind@nikhef.nlmartind@nikhef.nl Experiment: LHCB Homeinstitute: NIKHEF Frans MUL from PH/ULB http://consult.cern.ch/xwho/people/583844 Tel:76309 (from outside: +41 22 76 76309 ) Office: 13 1-026 Mailbox: F2620013 E-mail: fmul@nikhef.nlfmul@nikhef.nl Experiment: LHCB Homeinstitute: NIKHEF Eddy JANS from PH/ULB http://consult.cern.ch/xwho/people/494203 Tel:77108 (from outside: +41 22 76 77108 ) Office: 22 1-006 Mailbox: E0530022 E-mail: eddy@nikhef.nleddy@nikhef.nl Experiment: LHCB Homeinstitute: NIKHEF