TRUNNION GP-BULLDOZER 1U2515 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A(1) 6V-4194 Valve Seat Extractor 1
B(1) 165-5647 Valve Seat Extractor 1
C(1) 6V-4804 Handle 1
D(1) 6V-4192 Threaded Shaft 1
E(1) 6V-4199 Lifting Bracket 1
(1) Part of the 166-7441 Valve Seat Extractor ToolStart By:
Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: For information on the reusability of the valve seats, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines".
Illustration 1 g00615519
Illustration 2 g00656459Note: Replace Tooling (A) with Tooling (B) for the removal of the inlet valve seat insert.
Install Tooling (A) in the exhaust valve seat insert.
Install Tooling (C) and Tooling (D) in Tooling (A). Hand tighten Tooling (D). Tooling (A) will expand below the edge of valve seat insert (1).
Illustration 3 g00656462
Install Tooling (E) on the cylinder head under Tooling (C). Hold Tooling (D) while you turn Tooling (C). Remove valve seat insert (1). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
F 1U-6685 Guide and Insert Tool Group 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: For information on the reusability of the valve seats, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines".
Cool the valve seat inserts for easier installation.
Illustration 4 g01003799
Turn Tooling (F) upside-down and use Tooling (F) and a press to install the valve seat inserts in the cylinder head assembly.
After the valve seat inserts are installed, grind the inserts to the final specification. Refer to Guideline for Reusable Parts and Salvage Operation, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines" for the specifications. End By:
Install the inlet valves and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".