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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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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 coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
- Loosen the hose clamp from the upper radiator hose and remove the upper radiator hose from the water temperature regulator housing.
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Illustration 1 g03371516 Typical example - Remove bolts (2) that hold water temperature regulator housing (1) in position on the cylinder head. Remove the water temperature regulator housing. Remove the O-ring seal from the water temperature regulator housing. Discard the O-ring seal.
- Squeeze Retainers (A). Rotate the water temperature regulator in order to release the water temperature regulator from the tabs of the water temperature regulator housing.
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Clean the water temperature regulator housing.
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Illustration 2 g03371516 Typical example - Position water temperature regulator (3) in the water temperature regulator housing. Squeeze the retainers (A) and rotate the water temperature regulator in order to secure the water temperature regulator to the water temperature regulator housing.
Note: The Retainers (A) must be inserted behind the tabs of the water temperature regulator housing in order to secure the water temperature regulator during engine operation.
- Install a new O-ring seal on water temperature regulator housing (1). Lubricate the O-ring seal with red rubber grease. Position the water temperature regulator housing on the cylinder head.
- Install bolts (2) that fasten water temperature regulator housing (1) to the cylinder head. Tighten bolts (2) to a torque of
22 N·m (16 lb ft) . - Install the upper radiator hose and tighten the hose clamps.
- Fill the cooling system to the proper level. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC)- Change".