EDGE-CUTTING 4T9586 - 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.
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.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Drain the coolant from the cooling system below the level of the water temperature regulator. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
Illustration 1 g01931472
Remove bolts (1) and tube assembly (2) from water temperature regulator housing (7). Remove the O-ring seal.
Loosen clamp (4) and disconnect hose (3) from pipe (6).
Remove bolts (5), pipe (6), and the gasket from water temperature regulator housing (7).
Remove the water temperature regulator.
Remove water temperature regulator housing (7) and the gasket.