Cartridge S310 174978 179250 Caterpillar Industrial C9

Once it’s seated carefully, lift the bearing housing and grasp the turbine shaft sticking out of the bottom of the bearing housing. By holding the threaded end of the turbine shaft, invert the bearing housing and gently drop the bearing housing into the pilot bore of the turbine housing. Once it’s seated, you can release the shaft and the wheel will rest on the turbine housing contour.

Now you can begin to assemble the thrust components. Depending upon your turbo model, there is separate thrust rings that must be installed one before the thrust bearing and the other after the thrust bearing, so that you have a thrust ring on either side of the thrust bearing. Many models use a one-piece thrust collar that must be installed into the thrust bearing, and then the thrust collar and thrust bearing must be installed onto the turbine shaft as a unit and come to rest on the thrust pocket floor.