PINION (9 TEETH) 3B6694 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - 3/8 inch Drive E10 Torx Socket 1
B 934-913 Rocker Assembly Tool 6
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02724340
Clean the pushrods. Inspect the pushrods for wear or damage. Replace any pushrods that are worn or damaged.
Apply clean engine lubricating oil to both ends of pushrods (3). Install the pushrods to the engine with the cup upward. Note: Ensure that pushrods (3) are installed in the original location and that the ball end of each pushrod is correctly seated in the valve lifters.
Illustration 2 g02724339
Illustration 3 g02724349
Ensure that the rocker shaft assembly is clean and free from wear or damage.
Install torx screws (1) into rocker shaft (2). Ensure that the different length Torx screw (1) is installed into Position (X).
Install Tooling (B) onto the assembly of rocker shaft (2).
Ensure that machined Flat (Y) is facing upward, and machined Flat (Y) is towards the front end of the engine.
Position rocker shaft assembly (2) onto the cylinder head. Note: Ensure that the adjustment screws are correctly seated in ends of pushrods.
Use Tooling (A) in order to gradually tighten torx screws (1). Ensure that rocker shaft assembly (2) is correctly positioned onto the cylinder head Note: To avoid distortion of rocker shaft assembly (2), tighten the torx screws in the center first. Work toward the outside of the rocker shaft assembly.
Remove Tooling (B).
Tighten torx screws (1) to a torque of 35 N m (26 lb ft).
Check the valve lash. Refer to System Operation, Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust". If necessary, adjust the valve lash. Refer to System Operation, Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure. End By:
Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".