PLUNGER 3P2075 - Caterpillar

Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     152-1057     Fuel Injector Installer As     1    
C     272-1149     Leg     2    
D     -     Scotch Brite     1    
E     149-2955     Seal Protector     1    
F     149-2956     Seal Installer     1    
G     1U-5718     Vacuum Pump     1    
4C-4057 Bottle Assembly     1    
169-7372 Clear Plastic Tubing     1    
H     9U-5470     Reamer     1    
J     4C-6161     Tube Brush     1    
K     9U-6862     Tapered Brush     1    
L     4C-6774     Vacuum Gun Kit     1    
M     4C-5027     Tap Wrench     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Evacuate as much fuel and oil as possible from the cylinder head before installing the unit injector. Several evacuations may be necessary. Use Tooling (G) to remove the fuel and oil from the cylinder.Note: Tooling (L) is available to clean loose material from the sleeve bore and the cylinder.
Clean the carbon from the sleeve, the sleeve bore and the end of the unit injector. Clean the carbon from the seat area that is inside of the cylinder head. A fine grade of Tooling (D) is preferred. Clean the carbon from the cylinder head. If the sleeve of the unit injector has been removed from the engine, use Tooling (H) to remove only carbon from the surface of the sleeve. If the sleeve of the unit injector is installed in the engine, use Tooling (J) to clean the carbon deposit from the inside of the sleeve.The following procedure is the preferred method of cleaning the sleeve bore.Place a 38 mm (1.5 inch) square piece of Scotch Brite material on the end of Tooling (K). Twist Tooling (K) with Tooling (M) against the lower surface of the sleeve bore.The surface should be cleaned until the surface is smooth and shiny. The entire sleeve bore should be cleaned in order to remove any loose carbon particles.Note: Tooling (L) is available to clean loose material from the sleeve bore and the cylinder.
The correct procedures and tooling specifications must always be used. Failure to follow any of the procedures may result in damage, malfunction, or possible engine failure.
The O-ring seals and the backup rings must be installed in the correct orientation. Damaged seals will result in excessive oil consumption or excessive leakage under the valve cover. Use care to prevent nicks or damage to the seals.
Illustration 1 g01123753
Lubricate O-ring seal (6), O-ring seal (7), O-ring seal (8), and the sleeve bore of the unit injector sparingly with clean engine oil.
Use Tooling (E) and Tooling (F) to install backup ring (4), backup ring (5), O-ring seal (6), backup ring (9), and O-ring seal (8) .
Install O-ring seal (7) .
Lubricate