PIPE 4I0123 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     5P-0302     Bar     1    Start By:
Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00775441
Illustration 2 g00625237
Remove fuel injector hold-down bolt (1) .Note: Do not pry on the injector hold-down bracket. Damage to the unit injector could occur. The unit injector has a notch on the opposite side of the rack. This notch is used for prying the unit injector loose. Some fuel injector racks move freely when the spring is not compressed. Do not move the fuel injector rack without compressing the fuel injector spring slightly. Damage may occur to the unit injector.
Use Tooling (A) to loosen the unit injector. Rotate the unit injector in order to disengage injector rack bar (3) from fuel injection control linkage (2) .
Remove the unit injector. Ensure that two O-ring seals are on the unit injector.