sLHC Engineering Upgrade

FCAL Remove-Install step by step procedure.

Mircea Cadabeschi-University of Toronto March 01, 2010

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Step by step procedure

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Step by step procedure

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Step by step procedure

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Estimate tooling cost

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Install the first minivan to the front of the EC

- Lower the minivan on the rails by crane. - Time for installing 4 hours by 2 people..- No shield necessary.

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The extension tube is attached to the extension support, rotated 90 degree

Rotary table

Move back the first minivan

- Two people move back the minivan 3m.- Time of moving 4 hours by 2 people.- No shield necessary. 7

Insert the second minivan

- Install the minivan by crane.- The minivan has a shield attached. - Time for insertion 4 hours by 2 people. - No shield necessary. 8

Two THK rails are attached to the second minivan.

Set up the extension tube on minivans.

- Move the second minivan close to the first.- Rotate the extension tube and install it in the right position.- Connect the second minivan with the first.- Time to set up, 16 hours.- No shield necessary.

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Shield attached to the minivan

Attach the extension tube to the con forward

- Move the EC close to the assembly and set the position.- Adjust the height of the extension tube to match the FCAL.- Insert the extension tube inside the con forward.- Time: 16 hours, by 4 people. 10

Install the structure to the back of the EC

- Lower the structure (already assembled outside of the cavern) on the rails, by crane. - Time for installing 4 hours by 2 people.- No shield necessary.

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Set-up the structure- Move the structure and set

it up in position. Set-up the position of the mandrel.

- Attached the mandrel flange to the bulkhead. Connect the mandrel with the extension tube.

- Remove the 48 bulkhead bolts.

- Lift the FCAL (by turnbuckles) to clear the EC.

- Time for installing 24 hours by 4 people.

- No shield necessary. The mandrel square flange work as a shield.

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Remove the FCAL- Move the FCAL on THK rails

500mm.- Time: 8 hours by 4 people.- Cut the 112 connectors wires. - Special tool is necessary to cut

the wires. - Protective gear are necessary

for the people who cut the wires.

- Time: 4 hour by 2 people.

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Wires to be cut

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To remove the old FCAL will use a new cradle made from two halves, which will have a double purpose, as a cradle and a shield.

I called it sarcophagus, because the FCAL will stay inside the cradle all the time.

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Remove the FCAL

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- Move the FCAL 1500mm to clear the scissor table.- Time: 4 hours by 4 people. - No shielding is necessary.

Remove the FCAL

- Lift the sarcophagus to touch the FCAL.- Release the turnbuckles to change the FCAL load on sarcophagus.- Time: 8 hours by 2 people.- No shielding is necessary. 17

Remove the FCAL

- By crane, lower the top half of sarcophagus which will engage the bottom half.- Time 4 hours by 2 people.- No shielding is necessary.

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Remove the FCAL

- Move the extension tube, to clear the con forward.

- By crane, lift the FCAL just to clear the table and move it backward for the con forward to clear the EC.

- Time: 4 hours by 2 people.

- No shielding necessary.

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Remove the FCAL

- Lift slowly the FCAL and clear the area.- Time: 4 hours by 2 people.- No shielding necessary. 20

The summing boards

- 112 connectors for the FCAL to be disconnect.

28 boards, 4 connectors per

board

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The summing boards connectors.

The diameter for the bulkhead.

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Removing the old connectors

- The shield lowered by crane.- Rotating the flange, position the window in front of each summing board, allowing to

disconnect the old connectors.- Time 24 hours by 1 person.

shield

Rotating flange

window

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FCAL on Cradle

- The existing cradle can be used with the crane to insert the new FCAL.

FCAL Cradle

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- The Installation of the new FCAL will be made in reverse order.

- The new FCAL will install with the existing cradle.

- To connect the new connectors some tooling is necessary!!!???

- A lifting table possible to be design (using mechanical jacking screws), in stead of buying a scissor table.

- The time to remove the old FCAL and install the new one, about 6 weeks on each side.

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