HUB 6Y3979 - Caterpillar

Removal Procedure
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Drain the engine oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Engine Oil - Change".
Illustration 1 g01153497
Remove bolts (2). Remove engine oil pan (1) and the gasket. Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8C-8422 Sealant 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g03667125
Apply Tooling (A) to locations (X).
Repeat Step 1 for the opposite side of the cylinder block.
Illustration 3 g01153497
Illustration 4 g03667085
Clean the mating surface of engine oil pan (1) and the cylinder block.
Apply Tooling (A)
Place a new gasket and engine oil pan (1) on the cylinder block.
Tighten four Oil Pan Bolts (Y).
Start with Bolt (Z) and tighten all remaining bolts (2) in a counterclockwise sequence.
Tighten bolts (2) to a torque of 31 1 N m (23 1 lb ft).
Start again with Bolt (Z) and tighten all remaining bolts in a counterclockwise sequence.
Tighten bolts (2) again to a torque of 31 1 N m (23 1 lb ft).
Fill the engine with oil to the correct level. Refer to Operation and Maintenance Manual, "Engine Oil - Change" and Operation and Maintenance Manual, "Capacities (Refill)".