This article describes Caterpillar 311flrr – JFT crawler excavator engine oil cooler installation
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Engine oil cooler-mounting
Installation steps
1. Ensure that all parts are not worn or damaged. If necessary, replace all worn or damaged parts.
2. If necessary, follow steps 2.a to 2.d to assemble the engine oil cooler.
a. Ensure that the engine oil cooler base (12) is clean without damage and blockage. If the engine oil cooler base (12) is damaged or blocked, replace it.
b . Ensure that the housing (10) is clean and without damage. If the housing (10) is damaged, replace it.
c . Position the new gasket (11) on the engine oil cooler base (12). Install the engine oil cooler base (12) on the housing (10).
d. Install the bolts (13) and bolts (14) to the oil cooler assembly (3). Tighten the bolts (13) and the bolts (14) to a torque of 25N-m (221 lbin).
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3. Clean the cylinder block sealing pad surface.
4. Position the new gasket (4) to the engine oil cooler.
5. Install the engine oil cooler assembly (5) to the cylinder block. Install bolts (1) to the oil cooler assembly (3).
Note: Ensure that different lengths of bolts are installed in the correct position.
6. Tighten the bolts (3) to a torque of 25 N-m (221 Ib in) in the order shown in Figure 2.
7. Position the bracket (9) on the engine oil cooler (3). Install bolts (8) onto the bracket (9). Tighten the bolts to a torque of 15 N-m (133 Ib in).
8. Install the booster chamber cover (4). For the correct steps, refer to Disassembly and Assembly, “Turbocharger-Install”.
9. If necessary, install the turbocharger drain pipe assembly. For the correct steps, refer to Disassembly and Assembly, “Turbocharger-Install”.
10. Install the new O-ring seal (7) (not shown) onto the tube assembly (5).
11. Install pipe assembly (5) to the engine oil cooler (3).
12. Install the bolts (6) to the tube assembly (5). Tighten the bolts to a torque of 25 N-m (221 lb in).
13. Connect the coolant hose to the tube assembly (5).
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14. Install the alternator. For the correct steps, see Disassembly and Assembly, “Alternator-Installation”.
15. Fill the cooling system to the correct liquid level. Refer to the Operation and Maintenance Manual, “Cooling System Coolant-Replace” for the correct steps.
16. If the engine oil is drained during the engine oil cooler removal steps, refill the lubrication system. For the correct steps, refer to the Operation and Maintenance Manualbook, “Engine Oil and Filter-Replacement”.
17. Check the engine lubricating oil oil level. Refer to the Operation and maintenance Manual, “Engine Oil Level-Check” for the correct procedures.
