HOSE AS 2504524 - Caterpillar

Assembly Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that all components are clean and free from wear and damage. Refer to Specifications, "Rocker Shaft" for more information. If necessary, replace any components that are worn or damaged.
Illustration 1 g02942879
Lubricate the bore of rocker arm assemblies (2) for the inlet valve with clean engine oil.
Lubricate the bore of rocker arm assemblies (3) for the exhaust valve with clean engine oil.
Lubricate rocker shaft (5) with clean engine oil.
Install rocker shaft (5) into rocker shaft housing (4). Hole (X) must be in the upper most position in order for grub screw (1) to secure rocker shaft (5) in the correct position.
Install rocker arm assembly (2) for number 1 inlet valve to the rocker shaft. Install rocker arm assembly (3) for number 1 exhaust valve to rocker shaft (5). Note: The rocker arm assembly for the inlet valve is shorter than the rocker arm assembly for the exhaust valve. Used components should be installed in the original location.
Repeat Step 6 in order to assemble the remaining components to rocker shaft (5).
Install new grub screw (1) to rocker shaft housing (4). Tighten the grub screw to a torque of 15 N m (133 lb in) Note: Ensure that Hole (X) is in the upper most position.End By:
Install the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install" for the correct procedure.