BELLOWS AS 6I0401 - Caterpillar

Start By:
Remove the camshaft gear. Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Remove the rocker arms and the rocker shafts. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Remove".Note: This is an optional procedure to remove the camshaft. The preceding tool list shows the required tooling for removing the camshaft from the front of the engine or the rear of the engine.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. 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 on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.
Remove bolts (2) and thrust plate (1) .
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Remove seal assembly (3) and adapter (4) .
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Remove O-ring seals (5) and (6) from seal assembly (3) .
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Remove screws (7) and cover (8) .
Care must be used when removing the camshaft to not damage the highly finshed surfaces of both the camshaft and camshaft bearings
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Note: Carefully align Tooling (F) with the end of the camshaft. If the adapter and the camshaft are not aligned, the camshaft may not be removed. The adapter and camshaft bearing will interfere.
To remove the camshaft from the rear of the engine, install Tooling (F) on the front of the camshaft with Tooling (G) .
Install Tooling (E) .
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Carefully slide the camshaft to the rear of the engine for removal. Use two technicians to remove the camshaft. Keep the camshaft level while the camshaft is being removed from the cylinder head. The weight of the camshaft is approximately 39 kg (86 lb).
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To remove the camshaft from the front of the engine, install Tooling (E) on the rear of the camshaft.
Carefully slide the camshaft to the front of the engine for removal. Use two technicians to remove the camshaft. Keep the camshaft level while the camshaft is being removed from the cylinder head. The weight of the camshaft is approximately 39 kg (86 lb).