TRUNNION 4E3159 - Caterpillar

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.
Drain the coolant from the radiator and the engine. The capacity of the cooling system is 65 L (17 US gal).Note: 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 and the coolant systems.
Illustration 1 g00362523
Place a suitable floor jack under access plate (1). Remove bolts (2) from access plate (1). Lower access plate (1) from the machine. The weight of access plate (1) is 75 kg (165 lb).
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Place a suitable floor jack under access plate (4). Remove bolts (3) from access plate (4). Lower access plate (4) from the machine. The weight of access plate (4) is 200 kg (441 lb).
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Remove eight bolts (7) and four half clamps (6) in order to disconnect hoses (5) and (8). Move hoses (5) and (8) aside.
Remove the O-ring seals from hoses (5) and (8) .
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Remove bolts (11) and the nuts that secure transmission oil cooler (12), hose clamp (9), and the hose to bracket (10) .
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Remove bolts (17) from mounting pads (13), (16) and (18). Take note of the location of hose clip (15). Remove the mounting pads from pipe (19). Move hose clip (15) and hose (14) aside.
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Loosen hose clamp (21). Remove two bolts (22). Slide hose assembly (26) and hydraulic fitting (27) on pipe (20). Remove gasket (23) from hydraulic fitting (27) .
Loosen hose clamp (25) and move hose (24) aside.
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Disconnect hose (31) and move hose (31) aside. Remove the O-ring seal from hose (31) .
Remove wire harness (28) from wire harness clip (32). Disconnect wire harness (28) .
Remove bolt (29) from wire harness clip (32) and wire harness clip (33) on wire harness (30). Move wire harness (30) aside.
Illustration 8 g00346083
Attach a nylon lifting strap and a hoist to transmission oil cooler (12). Remove bolts (34) and remove transmission oil cooler (12) and the gasket from the engine oil cooler. The weight of the transmission oil cooler is 34 kg (75 lb).
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Remove bolts (35), bonnet (36), and the gasket from the transmission oil cooler.
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Remove bolts (37), bonnet (38), and the gasket from the transmission oil cooler.
Illustration 11 g00347552
Use dowel rod (39) to clean the transmission oil cooler. The diameter of the dowel rod is 3.175 mm (.1250 inch).