ATLAS Project
Process Spec: Endplate Stacking
Components: Matrix plates
Dowel Pins
Tie Rod Assemblies
Material: Latex Gloves
Tooling: Plate Hoisting Fixture
Module Carrier
Plate Transport Cart
QC Data Sheet:
Process:
1. Hoist clean signal end plate onto Plate Transport Cart using Plate Hoisting Fixture. Dismount fixture from plate and place on cart.
2. Move cart into clean room and position under clean room hoist.
3. Place Plate Hoisting Fixture on clean room hoist and hoist plate off cart.
4. Move plate to Module Carrier that is on the die cart.
5. Assemble Module Carrier endpiece to securely position end plate with ground pin holes facing outward. Remove fixture.
6. Place two cleaned dowel pins in plate dowel pin holes so that each is halfway inserted into end plate and protruding on the side of the first absorber plate.
7. Repeat steps 1-4 with first absorber plate.
8. Line up absorber plate with end plate such that dowel pins start to enter holes in absorber plate. Adjust plate support screws in carrier to make contact with absorber plate. Use two threaded rods with nuts and washers inserted in tie rod holes to push absorber plate into flush contact with endplate. Remove hoisting fixture. Adjust position of dowel pins if necessary to center them on plate joint. Insert two dowel pins into absorber plate. Remove threaded rod assemblies.
9. Repeat steps 7 and 8 with 15 more absorber plates.
10. Repeat steps 7 and 8 with far end plate. Do not add dowel pins to outer side of far end plate. Insert tie rods from signal end and screw into thread insert in far end plate until seated. Add washer and nut to each tie rod and tighten until snug by hand.
11. Ready for tube insertion.
FCAL2_PS_endplate_stacking.doc / Updated on 6/6/01