|
Size: 871
Comment:
|
Size: 1077
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 8: | Line 8: |
| * Swap out temporary ballast mass in BF. | * Swap out temporary ballast mass in BF, SF. * Adjust height of crossbars below BF. |
| Line 14: | Line 15: |
| * Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give 0 counts at nominal height). | |
| Line 17: | Line 19: |
| * BF GAS spring | * BF GAS spring rebuild? |
| Line 19: | Line 21: |
| * Tighten PI yaw return spring. |
KAGRA VIS - Type B - BS Test Hang Issues
Things to remember/fix after BS Test Hang, before final hanging of BS.
- Remove cling wrap in BF and install vacuum-compatible heat shrink.
- Remove cling wrap on connections for PI vertical stepper and install vacuum-compatible heat shrink (needs wider diameter heat shrink or smaller pins).
- Rewire PI horizontal steppers with vacuum-compatible cable.
- Swap out temporary ballast mass in BF, SF.
- Adjust height of crossbars below BF.
- If possible, fix galled pole in BF level of EQ stop.
- Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match.
- Reclean stuff:
- PI (remove Kapton tape etc, etc).
- LLB damper stuff, especially Cu segments.
- Adjust yoke on BF to put top of secondary at 6 mm above top of baseplate (or to give 0 counts at nominal height).
- Return/replace borrowed parts:
- Lock washers for LBB dampers
- Temporary ballast mass (dog clamps) in BF.
- BF GAS spring rebuild?
- Check inside SF for lost ruler.
- Tighten PI yaw return spring.