Monthly dust monitor vacuum pump checks: 

   End-Y - Vacuum pump off. Restarted with no problems. Not sure if it went off due to thermal check (room is hot due to running vacuum group compressors) or due to plug being bumped during service work in the area. Will keep an eye on it while the vent work is going on. 

   End-X - Pump OK and temps within spec. Made slight change in bypass air to adjust vacuum pressure. 

   CS - Pump OK and temps are within spec. Made slight change in bypass to adjust vacuum pressure.