3508B Industrial Engines Caterpillar


Crankshaft

Usage:

3508B LD3


Illustration 1g03334110

Table 1
Specification for 379-4853 Crankshaft Gp and 379-4854 Crankshaft Gp 
Item  Qty  Part  Specification Description 
7C-6209 Thrust Plate  Use only on the center main bearing as shown in the Illustration 1. 
End play for the new crankshaft is 0.17 to 0.63 mm (0.007 to 0.025 inch)
2W-2288 Plug  Torque to 50 ± 7 N·m (37 ± 5 lb ft)
18  128-4845 Bolt As  Use the following procedure in order to tighten the bolts:

1. Before assembly, lubricate the threads, the shank, the washer, and the underside of the bolt head with 6V-4876 Lubricant.
2. Tighten bolts to 200 ± 5 N·m (148 ± 4 lb ft).
3. Loosen the bolts.
4. Again, tighten bolts to 70 ± 5 N·m (52 ± 4 lb ft).
5. Rotate each bolt for an additional turn of 120 ± 5 degrees. 
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