Section 8 - Cooling System - Group 08 Fan Hub (Belt Driven) - Rebuild (8-04) M11 Page 8-31 Use the small end of bearing driver, Part No. 3823379, to press the front bearing onto the shaft until the inner race of the bearing contacts the bearing spacer. Caution: Do not lubricate the grease seal. The seal must be installed with the lip of the seal clean and dry to provide a proper sealing surface and prevent hub dam- age. Make sure the seal installation tool and flange are clean and dry when the fan hub is assembled. The sealing lip of the grease seal must be installed away from the seal driver. Place the seal on the large end of bearing driver, Part No.
3823379, with the open side of the seal facing away from the driver. Press the seal into the hub until the driver contacts the hub. If the shaft is shorter than 95.2 mm [3.75 inch], support the shaft with spacer, Part No. 217008 or equivalent. Place the hub on an arbor press with the tapered (fan mounting) end facing up. Apply a thin film of oil into the bore of the fan hub flange. Use the large end of bearing driver, Part No. 3823379, to press the flange onto the shaft until it contacts the front bearing.