CYLINDER HEAD SERVICE ASSEM. 9M8968 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 298-5564 T40 Torx Socket 1
D 1P-1860 Retaining Ring Pliers 1
E 1U-5718 Vacuum Pump 1
169-7372 Fluid Sampling Bottle 1
4C-4057 Tube
7.9 mm (0.31 inch) Outside Diameter 1
F 268-1968 Pry Bar 1
G 247-5377 Torque Wrench 1
Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training.Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High Pressure Fuel Lines" for safety information.Refer to System Operation, Testing and Adjusting, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
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.Dispose of all fluids according to local regulations and mandates.
Use a deep socket in order to install the electrical connections to the electronic unit injectors. Use of incorrect tooling will result in damage to the electronic unit injectors.
Use Tooling (E) in order to remove any fuel from the cylinder.Note: Evacuate as much fuel as possible from the cylinder before installing the electronic unit injector.
Illustration 1 g03398322
Follow Step 2.a through Step 2.e in order to install harness assembly (4) to valve mechanism cover base (14).
Install a new O-ring seal (15) to harness assembly (4).Note: Do not lubricate the O-ring seal.
Install harness assembly (4) to valve mechanism cover base (14). Ensure that the harness assembly is correctly orientated and correctly seated into the valve mechanism cover base.
Use Tooling (D) to install circlip (13) valve mechanism cover base (14).
Install a new cable strap (12) (not shown) to valve mechanism cover base (14).Note: Ensure that the cable straps meet the Original Equipment Manufactures (OEM) specification.
Connect harness assembly (11) to harness assembly (4).
If necessary, repeat Step 2.a through Step 2.e in order to install the remaining harness assemblies to the valve mechanism cover base.
Ensure that the fuel inlet port of the electronic unit injector is capped. Ensure that the electronic unit injector is clean.
Illustration 2 g03398316
New sealing washer (10) should only be installed if the original electronic unit injector (6) is to be reused.
On installing an original electronic unit injector, install a new O-ring seal (9).Note: Do not lubricate the O-ring seal.
Use a suitable tool in order to install a new sealing washer (10) to electronic unit injector (6).Note: Ensure that the nozzle for the electronic unit injector is not damaged in any way on installation of the new sealing washer.
Ensure that O-ring seal (9) and sealing washer (10) on a new electronic unit injector are not damaged and in place.Note: Do not lubricate the O-ring seal.
Ensure that the seat for the electronic unit injector in the cylinder head is clean and free from damage. Ensure that