BOLT 0S1627 - Caterpillar

Illustration 1 g03015257
Table 1
Specification for 379-4860 Crankshaft Gp
Item Qty Part Specification Description
Before assembly, lubricate the main bearing journals and the thrust plates with clean engine oil.
1 2 7C-6209 Thrust Plate Thrust plates should be used only on center main bearing.
2 24 7N-2003 Dowel Protrusion (C) of the dowel is 8.0 0.5 mm (0.31 0.02 inch).
3 6 2W-2288 Plug Torque to 50 7 N m (37 5 lb ft).
4 36 128-4845 Bolt As Use the following procedure to tighten the bolts:
1. Before assembly, lubricate the bolt threads, the bolt shank, the washer, and the underside of the bolt head with Molylube lubricant.
Torque outer bolts first, then torque inner bolt.
2.Tighten the bolts evenly to a torque of 200 5 N m (148 4 lb ft).
3. Loosen the bolts.
4. Again, tighten evenly to 70 5 N m (52 4 lb ft).
5. Rotate each bolt for an additional turn of 120 5 degrees.
Do not reuse counterweight bolts.
After assembly into cylinder block, end play of the new crankshaft is 0.17 mm to 0.63 mm (0.007 inch to 0.025 inch).