- Allen wrenches
- Palm grip handle tool found in the LRIS storage area on the Keck 1 Nasmyth deck
The following procedure applies to the removal of the filter on the blue side for LRIS.
Log in as lriseng and bring up a punaluu xterm
window. Type the following command at the punaluu prompt:
Click on the position number you wish to remove, and
click the SET button to move the carousel. The carousel
is now in position for replacing the filter.
Rotate LRIS so that the filter carousel is at the top
of the instrument. This will make it much easier to load
and unload the filter.
Climb on top of the instrument and locate the carousel.
Pull the tethered T-handle which locks the load door
in place. Note: The pin is an interlock for the
Open the load door.
Screw in the palm-grip handle. This allows you to lift
out the filter, and also locks down the latching
mechanism to the cell assembly.
The holder is kept in place using 3 or 4 screws which
secure the optic cell around the edge of the plate. Use
a 7/64 allen head wrench to loosen these captive screws
until they rattle.
Carefully lift the filter out of the carousel.
Place the filter to be serviced in its storage case or cart.
Remove the palm-grip handle from the element.
If removing more than one filter, repeat steps 9 thru 13.
Close the load door.
Insert the tethered T-handle which locks the load door
- s bluftran (should read bluftran=stowed;
if not type m bluftran=0 to move the filter into the
- blufload.tcl (This will bring up a
small GUI window which allows you to rotate the