HARNESS ASSEMBLY 1544563 - Caterpillar

Removal Procedure
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
Illustration 1 g01019963
Remove bolts (2) and the washers.
Remove elbow assembly (1) and the O-ring seals from the engine oil cooler.
Remove bolts (7) from the core of engine oil cooler (3) .
Remove bolts (4) and the washers.
Remove bolts (8) and the washers.
Remove the core of engine oil cooler (3) and the O-ring seals from the oil filter base.
Loosen hose clamp (5) on hose assembly (6) . Remove engine oil cooler bonnet (10) and O-ring seal (9) .
Clean the cooler tube bundles in engine oil. Clean the core of engine oil cooler (3) with a rod that has a suitable diameter. Thoroughly clean the tube bundles. Check the oil cooler for cracks or leaks.