MAESTRO INSTALLATION PROCEEDURE CHECKLIST

Consult the 2005 installation proceedure document first.

Last update: July 16, 2007

• Piano mover
• Pallet jack
• Adjustable wrenches
• Socket driver for 3/4 bolts
• Two 5-foot metal ended straps
• One 8-foot strap
• Two 10-foot straps
• two 2'x2' 1/2 inch thick steel plate
• 6"x6"x1 foot wood blocks
• 6"x6"x2 foot wood blocks
• flat head screw driver
• 9/64 hex driver
  

1. XX people are required to install MAESTRO.
   
2. The instrument is mounted in two parts: the counterweight and the main spectrograph itself. Each has their own cart
3. Set the instrument rotator to zero degrees.
   
4. Set the telescope to zenith. Point the telescope about 5-10 degrees off of zenith so that interference does not occur with the mirror cover frame or the secondary structure.
   
5. Rotate the building so that the hatch to the pit lines up with MAESTRO (assuming MAESTRO is in the pit).
   
6. Open the hatch to the observing floor and the hatch to the pit.
   
7. To lift the counterweight into the telescope chamber, do items 7.1 - 7.5. Spectrograph can brought up first or second.
   
   1. Attach two 10 foot straps to the counterweight assembly (counterweights and scissor jack cart). Mount points are TBD. ALSO SHOULD WEIGH THE COUNTERWEIGHT + CART.
      
   2. Using the crane, lift the counterweight+ cart above the hatch doors on the telescope floor.
      
   3. Close the hatch in the telescope floor.
   4. Lower the counterweight+cart to the floor.
      
   5. Roll the counterweight+cart out of the way, preferably to the back wall, toward the f/5 instrument storage room.
8. To lift the spectrograph + cart to the telescope chamber, do items 8.1 - 8.13
   1. Open the hatch in the telescope floor.
      
   2. In the pit, attach the two five foot straps to the lifting lugs of the spectrograph+cart.
      
   3. Attach the five foot straps to an 8 foot strap to the crane.
      
   4. Slowly lift the instrument while rolling it to remain centered under the hatch.
   5. As you approach the pivot wheels points, place a plate under the wheels to spread the load.
      
   6. Once onto the pivot wheels, roll the pallet jack barely under the end so that it will support the pivot point after the wheel is no longer in contact with the ground.
   7. Continue to roll the pallet jack forward as the instrument continues to rise to maintain crane centration through the hatch
   8. When instrument is fully off the floor, check the rigging. WEIGH THE SPECTROGRAPH AT LEAST INITIALLY.
      
   9. Lift the instrument through both hatches, until it is above the hatch doors on the telescope floor.
   10. Close the hatch doors.
   11. Place a 6x6x2 board centered 36 inches from the wall, with one 2ftx2ftx1/2 inch steel plate next to it. Place two 3x3x2 boards at 90 degrees from the 6x6 board and between the board and the wall. This will act to help to help the turning points for the instrument.
       
   12. Rest the instrument on the 3x3 boards and slowly lower the crane to pivot the instrument first onto the 6x6 block and then onto the wheels. Make sure the 1/2 inch steel plate is under the wheels when it comes down, to help spread the load and protect the floor.
       
   13. Continue lowering and rotating the instrument until it is fully lowered onto the floor. NOTE: The instrument will tend to drag the crane along the trolly, so take it slow and easy. If the telescope is at vertical, be careful that the trolly does not get dragged hard into the telescope structure.
       
9. Roll the spectrograph onto the instrument lift, under the telescope, counterweight/dewar end last (i.e. so dewar end points towards the back of the chamber).
10. Attach the guide pins to the appropriate hole locations in the derotator flange.
    
11. Lift the cart assembly on the instrument lift until it is within 1/2 inch or so of the rotator flange.
12. Use the large manual jacks under the instrument to ease the instrument up to mate with the rotator flange, and bolt the instrument to the rotator. Be sure to tighten the bolts systematically so as not to damage the rotator bearing.
13. Unbolt the cart and carefully lower the instrument lift. Wheel the cart out of the way.
14. Wheel the counterweight cart underneath the telescope. Jack it up using the counterweight cart and attach the counterweight to the rotator. Again, tighten the bolts systematically so as not to damage the rotator bearing.
    
15. unbolt the counterweight cart, lower it and wheel it out of the way.
    
16. Attach the 4 turnbuckles to support the counterweights and spectrograph.
17. Attach the power cord and ethernet cable from the spectrograph control electronics (large tan box).
18. Attach the power cord and ethernet cable from the CCD and guider control electronics box (large black box).
19. Attach the dry air purge for the dewar window.
20. Attach the Th-Ar cord to the PI patch.
21. Check that the cables are OK when the instrument is rotated.
22. Remove the grating cover and earthquake stops by doing the following.
    1. Remove the spectrograph covers on the grating end of the spectrograph.
    2. Using a flat head screwdriver, turn the recessed screws counter-clockwise x turns, to back the pucks off the grating. There are 5 screws in all.
    3. Remove the grating cover by unscrewing the 5 hex head screws on the cover (using a 9/64 wrench), and carefully lifting the black cover off the grating. BE CAREFUL! Stow the grating cover and the 5 hex head screws in a clean place.
       
    4. Close the spectrograph covers.
23.