On Feb 24th maintenance was initiated on the 17ID mono-chrometer. Plastic tubing that supplies water to the second crystal and shielding inside the mono-chrometer was replaced with metal hoses. This was done to prevent the possibility of a water leak due to radiation damage to the plastic hose as has happened with other Bruker mono-chrometers like the one installed on 17ID. The hose that was replaced was not in a location that could easily be replaced and required opening the mono-chrometer to change. At this time Bruker also fixed a faulty limit switch on the second crystal roll motion that had been broken for some time. The ion pump (vacuum pump) installed on the mono-chrometer was also replaced as it had begun showing signs of decreased performance. The work was completed without issue and the beam-line was returned to service on Feb 25th. This work was scheduled to coincide with a two day machine studies and at a time when it was possible for Bruker to be on site to also do commissioning work on 17ID.