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

Engine Oil Cooler - Remove

Usage:

Removal Procedure

Start By:

Remove 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.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates.

Put identification marks on all lines, hoses, wires, and tubes for installation purposes. Plug all lines, hoses and tubes. This helps prevent fluid loss and contamination of the oil system.

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Illustration 1	g00485566

Remove two bolts (1) from pipe (2) . Remove two bolts (3) from hose fitting (4) . The top bolt will remain in hose fitting (4) . Move hose fitting (4) aside and remove the gasket from the fitting.

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Illustration 2	g00485569

Remove two bolts (6) that secure mounting brackets (7) to engine oil cooler (5) . Move hydraulic hoses (8) and mounting brackets (7) aside.

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Illustration 3	g00485573

Loosen band clamp (9) that secures pipe (2) in hose (10) . Remove pipe (2) from engine oil cooler (5) and hose (10) . Remove the gasket from pipe (2) .

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Illustration 4	g00485574

Remove bolt (12) , spacer (13) and hose clamp (11) from engine oil cooler (5) .

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Illustration 5	g00485576

Loosen hose clamps (16) from hose (14) . Slide hose (14) onto pipe (15) .

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Illustration 6	g00485578

Remove bolt (18) , the nut and two half clamps (20) from pipe (17) and hose (23) . Remove reusable strap (19) from pipe (17) and the ether hose. Loosen hose clamp (21) from hose (22) .

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Illustration 7	g00485579

Remove reusable straps (26) and (27) from pipe (17) , the ether hose and the coolant overflow hose. Remove bolt (25) , the nut and clamp (24) from pipe (17) .

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Illustration 8	g00485582

Remove reusable strap (28) from pipe (17) and coolant overflow hose (31) . Loosen band clamp (29) from hose (30) . Remove pipe (17) from hose (22) , hose (30) and the engine compartment.

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Illustration 9	g00485583

Remove coolant overflow hose (31) from two hose clips (33) and relief valve (32) . Move coolant overflow hose (31) aside.

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Illustration 10	g00485585

Attach a nylon lifting strap and a hoist to engine oil cooler (5) , as shown. Remove six bolts (34) that secure engine oil cooler (5) to transmission oil cooler (35) .

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Illustration 11	g00485588

Remove drain plug (38) from bonnet (36) in order to drain the excess coolant from the bonnet.

Remove two bolts (37) from bonnet (36) .

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Illustration 12	g00485597

Remove bolt (39) from pipe (15) .

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Illustration 13	g00485599

Remove nut (41) in order to disconnect hose (40) from the brake pump.

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Illustration 14	g00485620

Remove pipe (15) , oil cooler (5) , bonnet (36) and the gasket from the transmission oil cooler and the engine compartment.

Tilt pipe (15) upward in order to facilitate the removal of the assembly. The weight of the assembly is 25 kg (55 lb) .

Remove two O-ring seals (42) from the engine block after removing the engine oil cooler.

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Illustration 15	g00485622

Note the location of bolts (43) for installation purposes. Remove two bolts (43) , pipe (15) and the gasket from oil cooler (5) .

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Illustration 16	g00485623

Note the location of bolts (44) for installation purposes. Remove three bolts (44) , bonnet (36) and the gasket from oil cooler (5) .

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Illustration 17	g00485624

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