<p> RSSLift Up and Lift Down Procedures ______</p><p>SALT PROCESS / PROCEDURE</p><p>TITLE RSS Lift up/Lift Down Procedure </p><p>DOCUMENT NUMBER 1000BD00XX Issue A</p><p>SYNOPSIS / SUMMARY [Type document SUMMARY]</p><p>KEYWORDS [Enter KEYWORDS for searching a database]</p><p>PREPARED BY A. Christians</p><p>APPROVED BY ______H.J. Kriel</p><p>AUTHORISED PERSONS Tsenoli Tiheli Jonathan Love Alrin Christians Charl du Plessis Johann Scholtz Brennan Meyer</p><p>DATE 30/01/2007</p><p>[SALT Doc No & Issue] 30/01/2007 Page 1 of 6 RSSLift Up and Lift Down Procedures ______</p><p>VERSION HISTORY</p><p>SALT Author Version Date Change History Doc No</p><p>ACRONYMS AND ABBREVIATIONS</p><p>DEFINITIONS</p><p>IMPORTANT NOTE Select File ► Properties ► Summary Type in Title of document Fill in Author [your name] Fill in Keywords</p><p>HELPFUL NOTE Select Tools ► Options ► Edit Select Typing replaces selection</p><p>[SALT Doc No & Issue] 30/01/2007 Page 2 of 6 RSSLift Up and Lift Down Procedures ______</p><p>TABLE OF CONTENTS</p><p>How to Create a Table of Contents 1. Once the document is complete, delete these instructions. 2. Position cursor on this page. 3. Open the Insert menu and choose Reference ► Index and Tables. (In Windows 2000 = Insert ► Index and Tables) 4. In Index and Tables dialog box, select Table of Contents tab. 5. Review the format settings (the page numbers are right-aligned, with a dot tab leader). Change the settings to fit the needs of your project. 6. Click OK to generate the Table of Contents.</p><p>If you change the headings later, update the Table of Contents (TOC) by clicking in the table and pressing F9. A dialog box will appear, asking whether you want to update the page numbers only or the entire table. To make sure you've got the most up-to-date TOC, select Update Entire Table and click OK.]</p><p>[SALT Doc No & Issue] 30/01/2007 Page 3 of 6 RSSLift Up and Lift Down Procedures ______</p><p>1 PURPOSE</p><p> i. The purpose of this procedure is to guarantee a safe RSS Lift Up and Lift Down. </p><p>2 CONSTRAINTS AND WARNINGS</p><p> ii. These procedures can result in serious injuries or damages to equipment if the steps in the procedures are not followed.</p><p>3 PROCEDURE</p><p>3.1 RSS Lift Up</p><p> a. Insert at least guider pins of different lengths on the outer bolt holes on the rho ring. Place them near positions where personnel will be standing when RSS is lowered.</p><p> b. After rho ring preparation rotate the structure to 60 degrees.</p><p> c. RSS must be on the Dolly with the rotation axis of the dolly along the 3-6 o’clock feet line.</p><p> d. Remove any optical components necessary for the lift.</p><p> e. Remove PSC1 box and the insertion pneumatic for Etalon 1. (furthest from camera)</p><p> f. Place webbing straps under 2 and 10 o’clock feet as described in the RSS lift down procedure.</p><p> g. Attach the block and tackle to spreader bar.</p><p> h. Manoeuvre the spreader bar over RSS and hook the other ends of straps onto the spreader bar.</p><p> i. Attach a strap to the 6 o’clock position on I beam and connect the other end of the strap to the block and tackle.</p><p> j. Attach long (30m) guide ropes to the 3 and 9 o’clock feet for rotation stabilization.</p><p> k. Take up slack in webbing straps and block and tackle with the dome crane with RSS still attached to the dolly.</p><p> l. Remove non-rotation strut (Steel u-beam with bolt top and bottom) from dolly so it can rotate about bearings. </p><p>[SALT Doc No & Issue] 30/01/2007 Page 4 of 6 RSSLift Up and Lift Down Procedures ______</p><p> m. Release block and tackle until the dolly triangle is 30mm from base of the dolly. (this will set the angle to 36 deg)</p><p> n. Remove the bolts holding RSS to its dolly.</p><p> o. Lift RSS through the first floor hatch. Note- It will need to be pulled outwards to fit past the inside of the hatch.</p><p> p. Lift RSS up to dome height and rotate dome away from 60 degrees of the maintenance position.</p><p> q. Rotate the structure to the maintenance position.</p><p> r. Rotate the dome with RSS over payload.</p><p> s. Slowly lower RSS over guide pins.</p><p> t. Lower RSS onto the rho ring.</p><p> u. Ensure that the 20mm alignment pins at the 3 and 6 o’clock positions insert properly into feet and that the RSS is flat on Rho Ring.</p><p> v. Bolt RSS down with bolts and belville washers.</p><p> w. Remove the guider pins.</p><p> x. Remove the rigging.</p><p> y. Reconnect the cabling.</p><p>3.2 RSS Lift Down</p><p>1. With the structure at the maintenance position, remove the Etalons, Detector and any Magazines that are easily accessible.</p><p>2. Detach all cables and hoses that connect RSS to the telescope.</p><p>3. Detach all cables that pass through RSS to Payload.</p><p>4. Detach cables and fibres that are connected to guider.</p><p>5. Remove the PSC1 box and Etalon 1 Pneumatic. (Insert pneumatic for etalon furthest from camera)</p><p>6. Remove all bolts attaching RSS to the Rho Stage. Leave 2 bolts in each of the 3 and 9 o’clock feet. Double check that there are no other bolts or attachments that connects RSS to the Rho Stage. (also check the inside of the pads)</p><p>[SALT Doc No & Issue] 30/01/2007 Page 5 of 6 RSSLift Up and Lift Down Procedures ______</p><p>7. Double check that there are no cables under the RSS structure.</p><p>8. Rotate the rotating structure to 0 degrees rho angle.</p><p>9. Set counterweight to best estimate of balanced with the articulation at 0 degrees.</p><p>10. Attach equal length straps to the 2 and 10 o’clock feet. Ensure the straps go through cross struts so they cannot slip. (Use 2 straps- a short section at the bottom with a Kevlar protecting sleeve and 2 longer straps as slings above it) </p><p>11. Attach the top end of the webbing strap to the spreader bar with the hooks in the furthest outside position.</p><p>12. Attach a block and tackle to the centre of the spreader beam.</p><p>13. Attach a block and tackle to the centre of the spreader beam.</p><p>14. Attach a sling to the RSS structure at 6 o’clock on the IR Beam articulation rail. Make sure it cannot slip.</p><p>15. Attach the other end of this sling to the hook of the block and tackle.</p><p>16. Take up the tension in the slings with the dome crane.</p><p>17. Take up tension with the block and tackle.</p><p>18. Attach long (30m) guide ropes to the 3 and 9 o’clock feet to stabilize rotation during lift.</p><p>19. Remove the remaining bolts at the 3 and 9 o’clock positions.</p><p>20. Slowly lift RSS until it clears the top of the Rho Stage.</p><p>21. Manoeuvre RSS over the SALT structure using the dome crane.</p><p>22. Always have 2 people stabilizing rotation with the guide ropes.</p><p>23. Rotate the Structure out of way to clear access to the 1st floor hatch. (to 60 deg)</p><p>24. Lower RSS through the hatch-RSS will need to be pulled outwards to clear the inner side of the hatch.</p><p>25. Hook the loading bay door crane on the 6 o’clock I beam position on RSS using a sling.</p><p>26. Level out RSS using the dome and door cranes together and lower onto RSS dolly.</p><p>27. Bolt RSS feet to dolly.</p><p>[SALT Doc No & Issue] 30/01/2007 Page 6 of 6</p>