TUBE AS 1903526 - Caterpillar

Assembly Procedure
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
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 or damage. Refer to Specifications, "Rocker Shaft" for more information. If necessary, replace any components that are worn or damaged.
Illustration 1 g01317298
Typical example
Lubricate adjustment screw (1) with clean engine oil. Install adjustment screw (1) and nut (2) to rocker arm (3). Repeat the process for the remaining rocker arms.
Install a new O-ring seal (7) onto rocker shaft (6). Lubricate the rocker shaft with clean engine oil.
Position the end of rocker shaft (6) into the bore in base (8). Align recesses (X) on the rocker shaft with holes (Y) in the base.
Gradually insert rocker shaft (6) into the base (8). Install rocker arm (3).
Continue to insert rocker shaft (6) and install the following components to the rocker shaft:
Rocker arm (3)
Washer (5)
Spring (4)
Washer (5)
Rocker arm (3)
Repeat Steps 5 and 6 in order to install the remaining components.
Ensure that rocker shaft (6) is fully engaged into base (8). Check that recesses (X) on the rocker shaft are aligned with holes (Y) in the base. End By:
Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install".