KIT-DUO-CONE SEAL 2788725 - Caterpillar

Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01131579
Use Tooling (B) to clean the electronic unit injector bore.
Use Tooling (C) to clean the electronic unit injector seat.
Apply Tooling (E) to upper land (2) and lower land (3) on the electronic unit injector sleeve.
Illustration 2 g01016237
Position electronic unit injector sleeve (1) in the cylinder head assembly. Use Tooling (D) and a hammer to seat the sleeve.
Install the electronic unit injectors. Refer to Disassembly and Assembly , "Electronic Unit Injector - Install".
Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the cooling system capacity. Refer to Operation and Maintenance Manual, "Cooling System Coolant (DEAC) - Change" or Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change" for the proper filling procedure.Type 2
Table 2
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     4C-9507     Retaining Compound     -    
( 1 ) Part of the 9U-6891 Injector Tool Group
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 g01120522
Install new O-ring seals (2) 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 4 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 seal 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) .
Install the electronic unit injector. Refer to Disassembly and Assembly , "Electronic Unit Injector - Install".
Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the cooling system capacity. Refer to Operation and Maintenance Manual, "Cooling System Coolant (DEAC) - Change" or Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change" for the proper filling procedure.