TM 9-2815-225-34&P 3-64.  WATER PUMP REPAIR (Contd) LOCATION/ITEM ACTION REMARKS d.  Assembly 25. Shaft (24) a.  Install bearing (23) on shaft Apply a thin coat of OE/HDO 10 (24). lubricating oil to shaft (24) for easier installation.  Use water pump bearing mandrel (ST-658). CAUTION Ensure Loctite does not migrate to inside diameter of bearing.  Bearing failure could result. b.  Install on pulley (25).   Use suitable press and water pump bearing mandrel (ST-658). Apply a light coat of Loctite to outside diameter of bearing (23) before installation.  Press until it bottoms. 26. Retaining ring (20) Install on shaft (24).   Install flat side of retaining ring (20) toward bearing (23). CAUTION Prior to installing the pipe plug, install a grease fitting and lubricate until you can see the grease through the bearing.  Remove the grease fitting and install the pipe plug. 3-528