[Kimura and Yasui]
It was confirmed that the water level in the tank of the cooling water system attached to the Y-10 vacuum pump unit on the Y-arm had decreased to approximately one-third of its normal level.
Consequently, on March 25, we performed a complete tank replacement, which also served to refill the water.
After the replacement work, we left the cooling water system cover off to monitor the rate of water loss.
During a routine inspection on March 27, it was confirmed that there was no further water loss, so we reinstalled the cooling water system cover.
A decrease in the water level of the cooling water system tank has also been confirmed for the X-10 vacuum pump unit on the X-arm.
We plan to replenish the water during the next maintenance operation.
[Kimura and Yasui]
It was confirmed that the water level in the tank of the cooling water system attached to the X-10 vacuum pump unit on the X-arm had decreased to approximately one-third of its normal level.
Consequently, on April 1, we performed a complete tank replacement, which also served to refill the water.
After the replacement work, we left the cooling water system cover off to monitor the rate of water loss.
During the routine inspection on April 3, we will reinstall the cooling water system cover after confirming that there are no further water leaks.
