CONTROL 5177958 - Caterpillar

At operating temperature, the engine cooling system is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the machine has stopped and the fill cap and radiator are cool enough to touch with the bare hand. Remove the fill cap slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury.
1. Release the pressure in the cooling system by slowly loosening the fill cap on the radiator.2. Open drain valve (2), and drain the coolant from the cooling system into a suitable container. The capacity of the cooling system is 16 liters (4.2 U.S. gal).
At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. Remove the fill cap on the hydraulic oil tank only when the engine is stopped and the fill cap is cool enough to touch with your bare hand.
3. Release the pressure in the hydraulic system by slowly loosening the fill cap located on top of the hydraulic oil tank.4. Remove drain cap (1), and drain the hydraulic oil into a suitable container. The capacity of the hydraulic oil tank is 56.8 liters (15 U.S. gal). Clean and install the drain cap. 5. Remove the two nuts and bolts that fasten clamp (3) to the brace.6. Mark or identify the cable assemblies for installation purposes. Disconnect cable assemblies (4) from the quick start post.7. Remove the bolt and clamp that fasten two hose assemblies (5) to the brace. 8. Mark or identify the cable assemblies for installation purposes. Disconnect two cable assemblies (6) from the disconnect switch. 9. Attach lifting straps and a hoist to brace assembly (7) as shown. Remove eight bolts (8), and remove the brace assembly from the machine. The weight of the brace assembly is 40 kg (88 lb). 10. Disconnect hose assembly (9) from the hydraulic oil cooler. Cap and plug immediately.11. Remove bolt (10) that fastens the two hose clamps to the fuel/hydraulic oil tank. 12. Put identification marks on the two wires connected to the fuel level sending switch. Disconnect the two wires from the fuel level sending switch.13. Remove the cable ties that fasten wiring harness (11) to the fuel/hydraulic oil tank. 14. Close fuel return valve (12) and fuel supply valve (14). Disconnect fuel lines (13) and (15) from the valves. Cap and plug immediately. 15. Remove bolt (16) that fastens the cable assembly and clamp to the door catch.16. Disconnect hose assembly (17) from the brake/shift valve. Cap and plug immediately.17. Loosen the two bolts, and remove hose clamp (18) from the bracket.18. Disconnect hose assembly (19) from the propel pump. Cap and plug immediately. 19. Disconnect hose assemblies (20) and (21) from the