BASE AS-FILTER 3481047 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6891 Injector Tool Group 1
B 9U-6862 Tapered Brush 1
9U-6863 Small Bore Brush 1
9U-7244 End Brush 1
9U-7237 Brush Extension 1
4C-5552 Large Bore Brush 1
C 4C-9507 Retaining Compound - Start By:
Remove the electronic unit injectors.
Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
Illustration 1 g01261663
Install Tooling (A) into electronic unit injector sleeve (1).
Tighten the nut until electronic unit injector sleeve (1) is pulled free of the cylinder head assembly.
Illustration 2 g01860393
Remove electronic unit injector sleeve (1). Installation Procedure
Use Tooling (B) to clean the bore in the cylinder head for the electronic unit injector sleeve.
Ensure that the electronic unit injector sleeve and the cylinder head bore are completely free of oil, dirt, and sealant debris.
Illustration 3 g01261773
Install new O-ring seals (2) and (3) on electronic unit injector sleeve (1). Note: Do not apply Tooling (C) to the cylinder head surfaces. Apply Tooling (C) on the electronic unit injector sleeve only.
Apply a thin coat of Tooling (C) to O-ring seal (3) and the contact surface of electronic unit injector sleeve (1) on the surface that is Marked "X".
Illustration 4 g01261802
Install Tooling (A) into the threads of electronic unit injector sleeve (1).
Position Tooling (A) and the electronic unit injector sleeve in the cylinder head. Use care not to damage the O-ring seal on the electronic unit injector sleeve.
Ensure that the electronic unit injector sleeve is properly seated in the cylinder head. The Tooling will "RING" when the electronic unit injector sleeve is fully seated in the bore of the cylinder head.
Use Tooling (A) and a hammer to install electronic unit injector sleeve (1) in the cylinder head.
Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures. End By:
Install the electronic unit injectors.