1. LCLS-II Magnetic Structure Design Review - Conceptual Mechanical Design: Module Assembly Method Alan Black Steve Marks 7/6/11 1

2. HXU32 Keeper, Pole and Magnet Assembly NEAR SIDE KEEPER NOT SHOWN

3. Keeper Assembly

4. Position Pole #1 1. Assemble Pole #1 to Keeper Rib #1. Use Vertical Spacer to create adjustment gap at bottom of pole. Clamp pole loosely in position, with set screws, approximately on center of rib. NEAR SIDE KEEPER NOT SHOWN

5. Position and Install Pole #1 2. Add Gage Block (in green) and Gage Shim to Keeper Slot #1 as shown. 3. Push Pole in Z direction firmly against gage block and shim to eliminate any gap or space between parts. 4. Clamp pole firmly and permanently in position using set screws.

6. Position and Install Pole #2 5. Remove gage shim. 6. Add Pole #2 with spacer and press firmly in the Z direction against the gage block and Pole #1. 7. Clamp pole firmly in place with set screws.

7. Position and Install Pole #3 8. Add Gage Block #2 to next adjacent slot. 9. Add Pole #3,with vertical spacer, and loosely retain with set screws. 10. Push Pole #3 firmly in Z direction against Gage #2 and other installed parts. 11. Clamp Pole #3 firmly into position with set screws.

8. Position and Install Remaining Poles 12. Repeat steps 2 - 11 for full length of module.

9. Install All Poles Per Steps 1-12.

10. Install All Magnets Between Poles w/Magnet Clamps.