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Message ID: 119
Entry time: Wednesday, February 05, 2020, 15:04
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| Author: |
Adam Newsome |
| Category: |
Trolley |
| Type: |
Repair |
| Subject: |
Upper resonator trolley: cylinders for Ex 2C tasks |
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Cylinder 4 on the upper resonator trolley was not fully functional when removing Ex 2C during 2020 shutdown. It worked occasionally. Upon inspection it was determined that it was binding when extend was attempted. This cylinder was replaced Feb 5, 2020 (model: American Cylinder 562SVS-2.00).
The other three cylinders were inspected and all of their shafts appear significantly bent. Replacement cylinders will be ordered and these will be replaced to prevent further issues.
Edit: all cylinders have been replaced as of Oct 8, 2020
Note: the solenoid valves that control these cylinders are quite dated and are leaky. The layout, plumbing, and wiring could also be improved. One of the cylinders' default position is extended which suggests a wiring/plumbing issue. I will look into replacing these as well, and creating pneumatic circuit documentation.
This e-log will be updated when replacement is completed. |