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Reports until 17:58, Thursday 26 April 2012
H2 SUS
deepakmanoj.nandakumar@LIGO.ORG - posted 17:58, Thursday 26 April 2012 (2698)
MC3 Assembly Notes

[Jeff B, Deepak K, Andres R and Gerardo M2]

Wednesday 25th April 2012

 - All the subassemblies were built alongside the MC1 subassemblies.

 - The Lower mass was assembled and weighed (2890g) and checked with the weight on the nebula page (2993g).

 - The intermediate mass was assembled and weighed with the add-on mass. The extra weight for the lower mass is added to the intermediate mass bringing the total weight of the mass to 2996g.

 - The lower blades were assembled and 1/4th of the total intermediate and lower weights are hung to each blade (1472g).

 - The distance from the frame to the blade is measured from 2 extreme points (Near the Clamp and at the neck of the blade).

 

Thursday 26th April 2012

 - After about 3 trials the blade clamps for the lower blades are chosen such that with the blades remain parallel to the frame when the weight is added. The different trials and the clamps used are recorded in the MC3 Traveler.

 - The upper mass was then assembled and weighed with the add-on mass (3115 g).

 - The upper wires were pulled and the intermediate wires are pulled too.

 - The upper blades were assembled to the frame along with the blade guards.

 - The EQ stops are were assembled on to the frame.

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