0315060 JOHNSON YOKE, Choke solenoid to air silencer, base

2. Remove all bolts (2) and guard assembly (1).3. Loosen hose clamp (3). 4. Unplug connector (4). Disconnect wire (7).5. Remove bolt (5) and bolt (6).6. Loosen clamps (11) and slide hose (10) onto tube assembly.7. Remove bolt (9) and the bolt on the opposite corner. Remove water pump (8), the O-ring seal, and the gasket from the engine. 8. Remove two bolts (13) and remove elbow (12) and the gasket from water pump (8). The following steps are for the installation of the water pump.9. Put the gasket and elbow (12) in position on water pump (8). Install two bolts (13).10. Put the O-ring seal in position on the water pump. Put the gasket and water pump (8) in position on the engine. Install bolt (9) and the bolt on the opposite corner. Install bolts (5) and (6).11. Slide hose (10) onto water pump (8) and tighten clamps (11).12. Connect wire (7). Connect connector (4).13. Tighten clamp (3).14. Install guard assembly (1) and bolts (2).13. Fill the cooling system with coolant to the correct level. See the Operation and Maintenance Guide.Disassemble & Assemble Water Pump
The following tools are needed for disassembly Start By:a. remove water pump FLUID SPILLAGE CONTAINMENTCare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "TOOLS AND SHOP PRODUCT GUIDE, NENG2500", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates. 1. Remove bolt (15) and the washer. Remove bearing (12) and gear (10) as a unit.2. Use Tooling (A), (C) and a press, and remove bearing (12) from gear (10).3. Remove snap ring (8) with Tool (B).4. Remove two bolts (1), the washers, cover (14) and gasket (2) from water pump housing (18).5. Loosen bolt (13) approximately 6.4 mm (.25 in). Hit the bolt with a soft hammer to loosen impeller (16) from shaft (9).6. Remove bolt (13), washer (11), impeller (16), spring (3) and seal assembly (4) from shaft (9).7. Remove bearing (7) and shaft (9) as a unit.8. Use Tooling (A), (C) and a press to remove bearing (7) from shaft (9).9. Remove ceramic seal (5) and seal (17) from water pump housing (18).10. Use Tool (C) to remove lip seal (6) from the water pump housing. The following steps are for assembly of the water pump. The following tools are needed for assembly.11. Install lip seal (6) in water pump housing (18) with Tool (C). The lip of the seal must be toward the bearings. Put clean engine oil on the lip of the seal.12. Install shaft (9) in bearing (7) with a press.13. Install shaft (9) and bearing (7) as a unit in water pump housing (18).14. Install snap ring (8) with Tool (B).
Clean water only is permitted for use as a lubricant for assembly. Do not damage or put hands on the wear surface of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
15. Put ceramic ring (5) in position in seal (17). Use hand pressure and Tool (D) to install the ceramic ring.16. Remove spring (3) from seal assembly (4). Use hand pressure and Tool (D) to install the seal assembly. Push seal assembly (4) on shaft (9) until it makes light contact with ceramic ring (5).17. Install spring (3) on seal assembly (4). Put impeller (16) in position on shaft (9), and install washer (11) and bolt (13) that hold it. Tighten bolt (13) to a torque of 38.0 1.5 N m (28 1 lb ft).18. Put gasket (2) and cover (14) in position on water pump housing (18), and install the two washers and bolts (1) that hold them.19. Install bearing (12) on gear (10) with a press.20. Position gear (10) and bearing (12) as a unit on shaft (9). Install the washer and bolt (15) that hold them together. Tighten bolt (15) to a torque of 97 7 N m (72 5 lb ft).End By:a. install water pump