How to reboot Colossus if TCS fails

Go out to computer in dome

Try resetting TCS from the TCS GUI special menu: Special -> Reset TCS Monitor

If unable to reset TCS from menu...

Left click black background behind TCS GUI
Open xterm
go to directory: cd /prod/bin
type: XMreboot <return>
Wait a few minutes while Colossus restarts
Once Colossus restarts login as follows: Login: (ask staff) Password: (ask staff)

Click "Activate" on TCS GUI

Press "E-Stop" on doom floor console

Go to the right side of the old control room and press "ON" for Dec. and HA, press "START" for hydraulic bearings

Press "Reset" on dome floor console

Use TCS GUI menu to slew telescope to zenith: Next -> Zenith -> click Yes on warning dialog box

Raise east Platform

Turn on laser on north-east side of bottom of the telescope tube by pushing the button on it

Be sure the laser aligns with the black dot on the wall. If not, adjust telescope position with hand-paddle until it is aligned.

Lower east platform

Restart TCS again from TCS GUI menu: Special -> Restart TCS Monitor

Reset console again...

Go to the right side of the old control room and press "ON" for Dec. and HA, press "START" for hydraulic bearings

Press "Reset" on dome floor console

Manually move the telescope with the hand-paddle off the zenith some amount so that the laser is not aligned with the black dot on the wall

Go back to zenith using the TCS GUI (not the hand-paddle): Next -> Zenith -> click Yes on warning

The laser should again be aligned with the black dot on the wall. If not, you are going to have to redo all the procedures above again or your telescope pointing could be off.

Raise east platform

Turn off laser

Lower east platform

You are now done