Spiral2 is a rare isotope accelerator dedicated to the production of some of the highest intensity beams on earth. Its driver is a superconducting linear accelerator that takes advantages of 26 bulk niobium quater wave accelerating cavities. It takes up to 1000W@4K, 95 cryo-valves and 22 automations systems to cryogenically operate the LINAC. The talk will present the achievement of years of hardwork to make the first trials of the LINAC partial cool down with its successes and challenges.