INSERT-VALVE SEAT 2668721 - Caterpillar

Illustration 4 g01255700
The rocker shaft is not shown for clarity.
Use Tooling (C) to pry beneath clamp (13) and free electronic unit injector (11) from the cylinder head.
Remove electronic unit injector (11) and clamp (13) from the cylinder head. Note: Always handle electronic unit injectors with care.
Illustration 5 g01255701
Typical example
Remove sealing washer (14) . Ensure that the sealing washer is removed from the cylinder head. Remove O-ring seal (15) from the electronic unit injector. Alternative Removal Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
B 298-5564 T40 Torx Socket 1
C 5F-4764 Pry Bar 1 Start By:
Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft - Remove" for the correct procedure.
Remove the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove" for the correct procedure. Note: This is an optional procedure to remove the electronic unit injectors. The method should ONLY be used when all electronic unit injectors are removed and when the engine is removed from the application.
Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.
Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorised personnel that have the correct training.Before begining 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 Systems Operation, Testing and Adjusting Manual, "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 remove the electrical connections from the electronic unit injectors. Use of incorrect tooling will result in damage to the electronic unit injectors.
Note: Put identification marks on all hoses, on all hose assemblies, on wires and on all tube assemblies for installation purposes. Plug all hose assemblies and tube assemblies. Plugging all hose assemblies and tube assemblies helps to prevent fluid loss and helps to keep contaminants from entering the system.
Turn the fuel supply to the OFF position.
Turn the battery disconnect switch to the OFF position.
Illustration 6 g01247489
Typical example
Loosen banjo bolt (7) sufficiently in order to allow the fuel to drain from tube assembly (6).
Illustration 7 g01255699
Place a temporary identification mark on connections (10) for harness assembly (9).
Use a deep socket to remove connections (10) from electronic unit injector (11).
Use Tooling (B) in order to remove torx screw (12) from clamp (13).
Place a temporary identification mark on the original electronic unit injector. The electronic unit injector must be reinstalled in the original location in the cylinder head.
Illustration