Micro-g LaCoste FG5, Manual

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How to Set Up and Run the FG5
3
3.1.6.DROPPER VERTICALITY
31. After each foot is in contact with the tripod leg, rotate each tripod foot
leveling screw exactly one revolution (counterclockwise), using the mark
on the top of the adjustment screw as a reference. This raises the tripod
off the interferometer just enough to take the weight of the tripod and
dropping chamber off the alignment pins.
32. Level the tripod tray by adjusting the tripod feet (not the interferometer
base legs. Be sure to adjust the cross level first, then the long level (see
step 27 for explanation). It is best to adjust the levels by
raising the proper
adjustment foot. This will prevent the dropping chamber from contacting
the interferometer.
33. Gently slide each alignment pin in until it reaches its stop. If any of the
three alignment pins do not slide freely, the tripod is still in contact with
the interferometer.
If this happens, slide the alignment pins out, and
lower the tripod leveling feet (turning clockwise) until the cones are no
longer in contact with the tripod leg balls. Return to step 30 and repeat
steps 30-33 to raise the tripod.
! THERE MUST BE NO CONTACT BETWEEN THE
TRIPOD/DROPPING CHAMBER ASSEMBLY AND THE
INTERFEROMETER DURING OPERATION. THIS ALSO APPLIES TO
CABLES. CABLES CONNECTED TO THE INTERFEROMETER
MUST NOT
TOUCH THE DROPPING CHAMBER/TRIPOD, AND CABLES
CONNECTED TO THE DROPPING CHAMBER/TRIPOD
MUST NOT
TOUCH THE INTERFEROMETER.
3.1.7.BEAM VERTICALITY
34. Make sure the plug in the side of the interferometer base has been
removed. Remove the collimating telescope from the Superspring case
and take off the lens cap. Slide the telescope onto the dovetail at the end
of the interferometer base until it reaches its stop and tighten the three
screws on the bottom of the mount.
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