D250E Series II and D300E Series II Articulated Trucks 3306B Engine Supplement Caterpillar

Installation Procedure

1. Inspect all parts and clean all parts. If any parts are worn or damaged, use new Caterpillar parts for replacement.

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Illustration 1	g00485625

2. Install O-ring seal (50) to elbow (47) . Install the O-ring seal to elbow (48) .

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Illustration 2	g00486616

3. Install two bolts (49) , elbow (48) and the O-ring seal to oil cooler (5) . Install two bolts (46) , elbow (47) and the O-ring seal to oil cooler (5) .

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Illustration 3	g00485623

4. Install three bolts (44) , bonnet (36) and the gasket to oil cooler (5) .

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Illustration 4	g00485622

5. Install two bolts (43) , pipe (15) and the gasket to oil cooler (5) .

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Illustration 5	g00485620

6. Attach a nylon lifting strap and a hoist to engine oil cooler (5) . Tilt pipe (15) upward in order to facilitate the installation of the assembly. The weight of the assembly is 25 kg (55 lb) .

7. Install two O-ring seals (42) to the engine block. Install pipe (15) , oil cooler (5) , bonnet (36) and the gasket to the transmission oil cooler and the engine compartment.

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Illustration 6	g00485599

8. Connect hose (40) to the brake pump. Tighten nut (41) .

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Illustration 7	g00485597

9. Install bolt (39) to pipe (15) .

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Illustration 8	g00485588

10. Install two bolts (37) to bonnet (36) . Install drain plug (38) in bonnet (36) .

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Illustration 9	g00485585

11. Install six bolts (34) that secure engine oil cooler (5) to transmission oil cooler (35) .

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Illustration 10	g00485583

12. Install coolant overflow hose (31) to two hose clips (33) and relief valve (32) .

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Illustration 11	g00485582

13. Install pipe (17) to hose (30) and the engine compartment. Tighten band clamp (29) to hose (30) .

14. Position overflow hose (31) to pipe (17) . Install reusable strap (28) to pipe (17) and coolant overflow hose (31) .

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Illustration 12	g00485579

15. Position clamp (24) on pipe (17) . Install bolt (25) and the nut that secures clamp (25) on pipe (17) .

16. Install reusable straps (26) and (27) to pipe (17) , the ether hose and the coolant overflow hose.

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Illustration 13	g00485578

17. Tighten hose clamp (21) in order to secure pipe (17) in hose (22) .

18. Install bolt (18) , the nut and two half clamps (20) to pipe (17) and hose (23) .

19. Install reusable strap (19) to pipe (17) and the ether hose.

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Illustration 14	g00485576

20. Slide hose (14) onto the water pump. Tighten hose clamps (16) in order to secure hose (14) to pipe (15) and the water pump.

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Illustration 15	g00485574

21. Install bolt (12) , spacer (13) and hose clamp (11) to engine oil cooler (5) .

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Illustration 16	g00485573

22. Install the gasket to pipe (2) . Install pipe (2) to oil cooler (5) and hose (10) . Install band clamp (9) that secures pipe (2) in hose (10) .

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Illustration 17	g00485569

23. Position hydraulic hoses (8) and mounting brackets (7) to engine oil cooler (5) . Install two bolts (6) that secure mounting brackets (7) to engine oil cooler (5) .

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Illustration 18	g00485566

24. Install the gasket to hose fitting (4) . Position hose fitting (4) to the engine oil cooler. Install two bolts (3) that secure hose fitting (4) to the engine oil cooler. Install two bolts (1) that secure pipe (2) to the engine oil cooler.

End By: Install the engine oil filter and oil filter base. Refer to Disassembly and Assembly, "Engine Oil Filter and Oil Filter Base - Remove & Install". The information is in this manual.