ENGINE AR-PRIMARY 2123603 - Caterpillar

Start By:
Remove the engine compartment shield. Refer to Disassembly and Assembly, "Engine Compartment Shield - Remove and Install".Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. Cleaning will help to prevent dirt from entering the internal mechanism.
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Remove bolts (1) and braces (2) from both sides of the fan group.
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Remove clip (3) .
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Disconnect hose (4) .
Remove bolts (5) .
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Remove bolts (7) and radiator top tank (6) .
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Remove hose (8) .
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Attach Tooling (A) and a suitable lifting device to fan group (9) .
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Remove bolts (10) and (11) from both sides of fan group (9) .
Use the suitable lifting device to remove fan group (9) . The weight of fan group (9) is approximately 102 kg (225 lb). Position fan group (9) onto suitable cribbing.
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Remove bolts (12) and guard (13) .
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Remove bolts (14) and shield (15) .
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Remove bolts (16) and fan (17) .
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Remove hub (18) .
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Remove nut (19) .
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Use Tooling (B) to remove hub (21) .
Remove bolts (20) and guard (22) .
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Remove bolts (24) and fan motor (23) .
Refer to Special Instructions, REHS4189-00, "Replacement of Blades for Variable Pitch Fan" for the replacement of the fan blade.