[Dsg-rich] winch rating for RICH assembly

[Tyler Lemon]

Thanks Bob. The GR1000 winch in question is inside EEL 124 if you need to take a look at it. 

Regards, 
Tyler 



From: "Bob Miller" <rmiller at jlab.org> 
To: "Tyler Lemon" <tlemon at jlab.org> 
Sent: Thursday, February 23, 2017 10:45:19 AM 
Subject: Re: winch rating for RICH assembly 



Hi Tyler, 

Doug and I will take a look at this next week. 

Bob 

On 2/22/2017 2:58 PM, Tyler Lemon wrote: 





Hello Bob, 




Please find attached slides from Marco Mirazita showing calculations for the planned rotation of RICH after the assembly of the detector shell. 




The GR1000 winch (image of load specifications also attached), is rated for 1000 kg. Rusty Sprouse has not approved the load test at 1,250 kg due to the 1000 kg rating of the GR1000 winch. 




However, it has been calculated that the maximum load exerted on the winch will be ~775 kg. Please let us know whether the rating of the GR1000 winch is adequate for the rotation of RICH using the lift procedure as shown in the slides. If it is not, we will find another solution. 




Best regards, 

Tyler 






-- 
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 269-7867 

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