October 21, 2003 H.J. Krebs 1

LST Mechanical Design Review

Handling & Installation Fixtures Design and Fabrication Status

H.J. KrebsOctober 10, 2003

October 21, 2003 H.J. Krebs 2

Gap Filler Plate Removal Fixture(Existing)

October 21, 2003 H.J. Krebs 3

Gap Filler Plate Removal Fixture

October 21, 2003 H.J. Krebs 4

Installation & Handling Fixtures Status• Center Gap Plate Fixture

– Purpose• Remove and reinstall the upper and lower center gap plates

on the FWD end to enable removal of RPCs and installation of brass absorber plates and LSTs

– Needed• 2004

– Responsible person• Jim Krebs

– Status• Design and drawings complete• Fabrication complete

October 21, 2003 H.J. Krebs 5

Center Gap Plate Fixture

October 21, 2003 H.J. Krebs 6

Center Gap Plate Fixture

October 21, 2003 H.J. Krebs 7

Installation & Handling Fixtures Status• Solenoid Support Arm Fixture

– Purpose• Remove and reinstall the upper and lower solenoid support

arms on the FWD end used to react axial loads. This will enable removal of the upper and lower FWD corner blocks.

– Needed• 2004, 2005

– Responsible person• Jim Krebs

– Status• Design and drawings complete• Fabrication complete

October 21, 2003 H.J. Krebs 8

Solenoid Support Arm Fixture

October 21, 2003 H.J. Krebs 9

Solenoid Support Arm Fixture

October 21, 2003 H.J. Krebs 10

Installation & Handling Fixtures Status• Corner Block Adaptors

– Purpose• Moves corner block rigging connection in Z direction to more

convenient location. There are two basic adaptors corresponding to the mid & lower corner blocks and right and left hand units to correspond with east and west.

– Needed• 2004 (lower), 2005 (mid & lower)

– Responsible person• Jim Krebs

– Status• Design and drawings complete for lower adaptor• Fabrication complete

October 21, 2003 H.J. Krebs 11

East Lower Corner Block Adaptor

October 21, 2003 H.J. Krebs 12

Lower Corner Block Adaptors

October 21, 2003 H.J. Krebs 13

Installation & Handling Fixtures Status• Adaptor Installation Fixture

– Purpose• Used to install and remove the adaptors on the mid

& lower corner blocks.

– Needed• 2004, 2005

– Responsible person• Jim Krebs

– Status• Design and drawings complete• Fabrication complete

October 21, 2003 H.J. Krebs 14

Adaptor Installation Fixture

October 21, 2003 H.J. Krebs 15

Installation & Handling Fixtures Status• Corner Block C-Hooks

– Purpose• Supports corner block dead load from crane during removal and

reinstallation process. There are three C-Hook designs corresponding to the lower, mid & upper corner bocks.

– Needed• 2004(lower & upper), 2005 (all)

– Responsible person• Jim Krebs

– Status• Upper

– Design and drawings complete– Fabrication in process

• Mid– Initial CG calculations complete– No drawings at this time (not needed until 2005)

• Lower– CG calculations verified– No drawings at this time

October 21, 2003 H.J. Krebs 16

Upper Corner Block C-Hook

October 21, 2003 H.J. Krebs 17

Installation & Handling Fixtures Status• Corner Block Receptacle & Lift Eye

– Purpose• Supports corner block vertically to release C-Hook

and to lift corner block and load on truck using conventional rigging.

– Needed• 2004, 2005

– Responsible person• Allen Constable

– Status• Design not yet started on receptacle• Lift eye fabrication in process

October 21, 2003 H.J. Krebs 18

Corner Block Lift Eye

October 21, 2003 H.J. Krebs 19

Installation & Handling Fixtures Status• Flux Bar Handling Fixture

– Purpose• Used to remove and reinstall the flux bars that are located

behind the corner blocks. The flux bars must be removed to access layer 18. The handling fixture for the side flux bars may be different than that used for the top & bottom.

– Needed• 2004 (top & bottom), 2005 (sides)

– Responsible person• Jim Krebs

– Status• Design and drawings not yet started – December?

October 21, 2003 H.J. Krebs 20

Installation & Handling Fixtures Status• Brass Installation Fixtures

– Purpose• Install brass plates in steel flux return gaps. Top & bottom

fixtures are different than side fixtures. There is a separate presentation devoted to these fixtures.

– Needed• 2004 (top & bottom fixtures), 2005 (side fixtures)

– Responsible person• Allen Constable

– Status• Top & Bottom

– Design complete– Fabrication

» Parts in shop» Remaining parts on order

• Sides– Design scheduled to begin 12-8-03

October 21, 2003 H.J. Krebs 21

Installation & Handling Fixtures Status• Brass Cambering Fixture

– Purpose• Modifies brass plate camber in field if steel gap is

shaped different than expected.

– Needed• 2004, 2005

– Responsible person• Allen Constable

– Status• Preliminary design complete• Fabrication is not yet started

October 21, 2003 H.J. Krebs 22

Installation & Handling Fixtures Status• Forward End Plug Handling Fixture & Spreader

– Purpose• Used to remove and reinstall the FWD end plug halves in the

FWD end doors. Spreader bar needed to route rigging slings on each side (+Z & -Z) of the FWD end doors.

– Needed• 2005

– Responsible person• Jim Krebs

– Status• Design and drawings are complete• Fabrication is complete

October 21, 2003 H.J. Krebs 23

FWD End Plug Fixture

October 21, 2003 H.J. Krebs 24

FWD End Plug Fixture

October 21, 2003 H.J. Krebs 25

FWD End Plug Spreader Bar

October 21, 2003 H.J. Krebs 26

Installation & Handling Fixtures Status• Forward End Plug Receivers

– Purpose• There are one each of a R.H. & L.H. receiver. These

receivers support the FWD end plug halves in their normally installed orientation to allow the end plug handling fixture to be removed. The receivers will be used to transport the end plug halves to IR-12.

– Needed• 2005

– Responsible person• Allen Constable

– Status• Design scheduled to begin 11-19-03• Fabrication is not yet started

October 21, 2003 H.J. Krebs 27

Installation & Handling Fixtures Status• EMC Load Transfer Fixture

– Purpose• Transfers EMC gravitational load to flux return upper

earthquake support beams to allow removal of FWD mid corner plates. There is a separate presentation devoted to this fixture.

– Needed• 2005

– Responsible person• Richard Boyce

– Status• Design and drawings are in conceptual design phase• Fabrication is not yet started

October 21, 2003 H.J. Krebs 28

Installation & Handling Fixtures Status• Installation Platforms & Positioners

– Purpose• These devices are used to position fixtures and personnel in

the proper orientation and elevation relative to the flux return steel. There are three basic devices: a vertical elevating platform, a horizontal angled positioner, and a device that will pull existing RPCs from their corresponding barrel slots. There is a separate presentation devoted to these devices

– Needed• 2004 (elevator, RPC puller), 2005 (all)

– Responsible person• Les Dittert

– Status• Design and drawings are complete• Fabrication is not yet started

October 21, 2003 H.J. Krebs 29

Conclusions & Comments• Barrel RPC removal, brass and LST installation

require the development of several handling and installation fixtures.

• The LST installation equipment is not included in this presentation. (See Bill Sands talk)

• The design and fabrication of these fixtures are on schedule for the 2004 down.

• Our goal is to have these fixtures available as early as possible to take advantage of any potential schedule advancement.