RING 1T0772 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     124-2946     Lifting Bracket     1    Start By:
Remove the valve mechanism cover.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01259735
Valve rocker arms and unit injector rocker arms can move on the shaft after the bolts have been removed. The shaft should be kept level when removed from the cylinder head. To avoid possible personal injury, keep fingers clear of the valve rocker arms and the unit injector rocker arms when lifting the assembly from the cylinder head.
Remove studs (1) from rocker arm shaft assembly (2) .
Illustration 2 g01262841
Use Tooling (A) in order to remove rocker arm shaft assembly (2) .Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01262841
Use Tooling (A) in order to install rocker arm shaft assembly (2) .
Illustration 4 g01259735
Valve rocker arms and unit injector rocker arms can move on the shaft after the bolts have been removed. The shaft should be kept level when removed from the cylinder head. To avoid possible personal injury, keep fingers clear of the valve rocker arms and the unit injector rocker arms when lifting the assembly from the cylinder head.
Install studs (1) onto rocker arm shaft assembly (2). Tighten studs to a torque of 50 5 N m (37 4 lb ft). Turn the studs by an additional 45 5 degrees.
Adjust the electronic unit injectors. Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust".
Adjust the engine valve lash. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust".End By: Install the valve mechanism cover.