OCTAGON INSTALLATION PROCEDURE I) Setup 1) No jewelry, watches, or loose sleeves. 2) Long hair tied, shoe laces tied. 3) Shirts tucked in properly, nothing loose in shirt pockets. 4) Floor cleared ( from Counting house to the tunnel) 5) All other people should be clear from the area 6) No passage of anyone through the area during operation or crossing area to transportation. 7) Only 1 person will speak at a time, usually the persons leading the action or the person who is performing a certain action ( releasing handles, pin in place, etc) 8) Whenever someone sees a problem, then this person SHOULD SAY STOP. The response of the other people will be that they freeze. Action will only proceed after the person who issued the STOP has explained and the problem is resolved. II) Transport from Counting House to the tunnel 1) Start position: Bolek controls area inside 1010A. Everybody else near Counting House Bolek gives all clear signal 2) Carriers walk through parking lot, 1010A building up to gate with Nigel in front Mike opens and tends gate Bolek holds maze door Carriers proceed through tunnel with Nigel in front Carriers place octagon on table A (see definition below) 5) Rachid and Birger installs cover w. open end for cables III) Installation of octagon on beampipe- Preparation Personnel: Alan, Birger, Rachid, Mike, Russell, Bolek, George 1) Table A: Just inside fence with octagon on top 2) Table B; Next to beamline with octagon support on top 3) Table C: Next to cooling system on opposite side of beamline 4) On table A: Place transport box with octagon detector on inner half of table 5) Place spare transport plate on outer half of table; same orientation 6) Whole fence removed on 9 o'clock side IV) Separation of top and bottom halves Personnel: Alan, Birger, Rachid, Mike, Bolek, George 2) Bolek reads off checklist 3) Russell observes and guards hallway 4) Initial: Octagon in test box on table A on inner half 5) Spare transport bottom along side octagon on outer half, same orientation 6) George supervises removal of fence while Rachid guards octagon 7) Rachid, Alan remove plexiglas box, while Birger secures bottom plate 8) Store cover under table A 9) Rachid and Alan support upper half from both ends 10) Birger remove screws holding top and bottom together 11) Rachid and Alan separate upper and lower half (Birger and Russell hold down board) - move to outer side 12) Place mylar on top for protection 13) Birger installs handles while Rachid and Alan hold top half 14) Rachid and Alan place top halves onto spare bottom plate. 15) - Birger secures handles on transport plate - installs cover 16) George makes sure passage to other side of beam line is clear 17) Birger and Mike go to other side of beam line 18) Rachid and George take front handles of spare transport box 19) Alan take rear handles - Bolek watches 20) Proceed to beam line under pass and stop 21) Rachid and George secure grip under box 22) Rachid and George allow Birger to hold on to handles 23) Rachid and George let go of box and duck under beam line 24) Rachid and George holds on to rear part of box 25) Alan lets go 26) Rachid and George go to +Z 27) Upper part is placed on table B V) Preparation for installation of bottom half Personnel: Alan, Birger, Rachid, Mike, Bolek, George 1) Remove detachable section at +Y, -Z area of detector enclosure 2) Place octagon box at outer half of table A 3) Rachid into corner next to spectrograph 4) Table B is pushed into corner as far as possible 5) Table B is propped up as far as possible 6) Birger positions support structure onto slide plate, which is placed at the -Z -X corner - line up with marks and checks that all four locknuts are tight 7) Alan at rear, George at front 8) Alan and George hold each end of octagon bottom by the handles 9) Birger unsecures handles and hold bottom down 10) Alan and George rotate 180 degrees - Alan counter clockwise. 11) Place back onto bottom plate again 12) Birger secures handles on plate 13) Alan and George support bottom half at each end 14) Birger places mylar sheet on top for protection 15) Birger removes screws from handles and also remove plastic sheets. 16) Alan and George rotate assembly 90 deg. And check hand position 17) Alan and George rotate another 90 deg. 18) Alan and George move to table B 19) George hands off to Rachid 20) Alan places bottom half into support structure - rear first 21) George helps steer near vertex region 22) Birger secures bottom half into support structure - two rear screws first 23) George fastens through pin near vertex VI) Installation of bottom half Personnel: Alan, Birger, Rachid, Mike, Bolek, George Rachid in corner next to spectrometer Alan and Birger next to table B George & Mike on outer side Bolek reads checklist Russell observes and guards hallway Black plastic has been removed from octagon hole into enclosure Lamp into position between tracks Rachid guides the front end of octagon George and Mike observes from other side 1) Alan and Birger slide the whole structure on table to line up with black plate - no rotation 2) Alan and George slide/lift support onto black plate and align with beam line in a sliding/rotating motion Rachid still guides the front - watch beam pipe and enclosure Mike installs track with one screw Alan and George slide support sideways into final position 3) Rachid and Mike observe front end to make sure beam line is not touched by the pin Mike holds on to black handle on his side Alan and Birger remove table B and wooden shims on floor Birger removes counterweight Rachid and George remove counterweight support, 2 screws each side Rachid removes inner handle, George holds outer handle Mike installs last track screws 4) Rachid and Alan install securing screws through black plate, not tight Rachid and Alan install adjustment stops and retaining screws Mike and George remove outer handle Mike and George install securing screws through black plate 5) Alan tightens securing screws on his side George and Rachid remove front standoff fixture Birger goes to outer side 6) Rachid and Birger elevates structure as follows, while George puts upward pressure on rear of support structure and monitors front edge: a) One turn up on rear chain b) Follow up with rear lock nuts c) One turn up on front lock nuts d) One turn up on front chain. e) Switch to 1/2 turns for last few turns. Repeat slowly 30 times in total - Mike keeps count secure locking nuts Check that it is now in the correct position - 393 mm from plate. VII) Installation of top half Personnel: Alan, Birger, Rachid, Mike, Bolek, George 1) Alan, Rachid, Mike on outer side, Russell, George, Bolek on inner side Upper half in spare transport box on table C facing correctly Mike and Rachid remove cover from upper half Mike installs little handle on rear stand off Alan at front, Rachid in back Alan and Rachid hold upper half in each end Place mylar sheet on top for protection Mike removes handles George moves to inner side in corner by spectrometer Mike observes behind Alan 2) Alan and Rachid slowly move toward final position until Alan's left hand touches enclosure. George observes and guides on other side 3) Slide onto guide pins while Rachid guides with left hand, Alan with right hand PLAN B: In case the pins are on the inner side George and Bolek help guide onto the pins 1) George holds on to front end - Rachid in back Alan installs screws on both sides Alan returns to outer side Alan and George remove stand off in front Rachid removes stand off in back Octagon is now safely mounted around the beam pipe. VIII) Remaining Tasks Replace detachable section at +Y, -Z area of detector enclosure 1) Remove hose clamp and plexiglass plate between tracks 2) With clamping screws facing out install manifold support screws in from below 3) Install manifold onto support w. Al spacer between screws and manifold 4) Replace manifold supply hose and tighten clamp from beneath 5) Re-install back enclosure plate 6) Connect supply hoses 7) Secure outer back plate 8) Secure inner plate and connect both halves 9) Connect output hoses 10) Install support for FEC crates behind octagon 11) Install FEC crates 12) Install 'C'-cables 13) Survey to ensure that octagon is centered around the beam-line.