HARNESS AS-PANEL 2925978 - Caterpillar

8. Remove all crankshaft main bearing caps (5).9. Push the pistons as far away as possible from the crankshaft. 10. Remove bearing (6) from each crankshaft main bearing cap. Make sure that each bearing is kept with the crankshaft main bearing cap it is removed from for correct installation purposes. 11. Remove two thrust plates (7) from the center main bearings. 12. Fasten tooling (B) and a hoist to the crankshaft as shown.13. Use tooling (B) and a hoist to remove crankshaft (8) from the cylinder block. The weight of the crankshaft for a 3408 Engine is approximately 131 kg (290 lb.). Lift the crankshaft slowly so the main bearing upper halves stay in the cylinder block. 14. Use tool (C) to remove gear (9) from the crankshaft. Use tooling (D) to remove the dowel that is under the gear if a replacement of the dowel is necessary. 15. Use tooling (E) to remove pin (10) from the crankshaft if a replacement of the pin is necessary. 16. Put identification on main bearing upper halves (11) and connecting rod bearing upper halves (12) as to their location in the cylinder block and connecting rods. Remove bearings (11) and (12).Install Crankshaft
Do not put oil on the bearings until the bearing clearance has been checkd.1. Install bearings (1) in the connecting rods they were removed from. Make sure the hole in each bearing is in alignment with the notch in each connecting rod.2. Install bearings (2) in the cylinder block. Make sure the tab in each bearing is in alignment with the notch in the cylinder block. For further information on bearing clearances, see Remove And Install Crankshaft Main Bearing. 3. Install pin (3) in the end of the crankshaft. Install the pin so that it extends a maximum of 6.4 mm (.252 in.) above the surface. 4. Install the dowel in the crankshaft that puts gear (4) in the correct position. Install the dowel so that it extends 4.1 0.5 mm (.161 .020 in.) above the surface of the crankshaft.5. Heat gear (4) to a maximum temperature of 233°C (451°F). Gear (4) must be installed on the crankshaft with the "V" timing mark toward the outside.6. Install gear (4) on the crankshaft. Make sure the notch in the gear is in alignment with the dowel on the crankshaft. The dimension from the rear face of the gear to the front face of the crankshaft must be 45.54 0.25 mm (1.793 .010 in.). 7. Fasten tooling (A) and a hoist to the crankshaft (5) as shown. Install the crankshaft in the engine. The weight of a crankshaft for a 3408 Engine is approximately 131 kg (290 lb.). 8. Make sure that "V" mark (6) on the crankshaft is in alignment with "V" mark (7) on the idler gear. The side of each thrust plate (8) with the words "BLOCK SIDE" must be installed with this side toward the cylinder block.9. Put clean oil on thrust plates