The technician was painting the inspection tool rack weighing approximately 280 kg. To enable him to paint underneath the rack. The 3rd party Forklift operator tilted the rack partially with the Forklift. At this point the technician and the third party Forklift operator positioned themselves on opposite side of the rack and lowered it manually the remaining distance to the ground. During this process the tool rack landed on the Forklift operator’s left foot.