WASHER 4H1394 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
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(1) 221-9778 Puller Stud 1
D(1) 9U-7258 Driver Cap 1
E - Loctite 620 Retaining Compound -
(1) Part of the 9U-6891 Injector Tool Group
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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 1 g01043165
Install new O-ring seals (2) and O-ring seal (3) on electronic unit injector sleeve (1).Note: Do not apply Tooling (E) to the cylinder head surfaces. Apply Tooling (E) on the electronic unit injector sleeve only.
Apply Tooling (E) to the contact surface of electronic unit injector sleeve (1) on the surface that is Marked "X".
Lubricate O-ring seals (2) with clean engine oil.
Illustration 2 g01076119
Install Tooling (C) into the threads of electronic unit injector sleeve (1).
Position Tooling (C) and the electronic unit injector sleeve in the cylinder head. Use care not to damage the O-ring seals on the electronic unit injector sleeve.
Use Tooling (D) and a hammer to install electronic unit injector sleeve (1) in the cylinder head.
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.
Remove Tooling (D) and Tooling (C). Use a clean towel and remove excess Tooling (E).
Fill the cooling system with coolant. Refer to Operation and Maintenance, "Refill Capacities" for the cooling system capacity.End By:
Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Install".