SHAFT (12 TEETH) 4K6212 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     9U-6195     Valve Spring Compressor     1    Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean the bottom face of the cylinder head. Use a dial indicator to check the depth of the valves below the face of the cylinder head before the valve springs are removed. Refer to the Specifications, "Cylinder Head Valves" for the correct dimensions.
Place an index mark on the heads of the inlet valves and the exhaust valves for installation purposes.
Illustration 1 g00659252
Illustration 2 g00825746
The valve spring keepers can be thrown from the valve when the valve spring compressor is released. Ensure that the valve spring keepers are properly installed on the valve stem. To help prevent personal injury, keep away from the front of the valve spring keepers and valve springs during the installation of the valves.
Use Tooling (A) to compress valve springs (3) .
Remove two valve keepers (1) .
Slowly release the pressure on Tooling (A) and remove Tooling (A) .
Remove valve spring retainers (2) .
Remove valve springs (3) .
Remove valve stem seals (4) .
Remove valve spring seat washers (5) .
Remove inlet valves (6) and exhaust valves (6) .Removal Procedure (Alternate Method)
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
B     5S-1330     Valve Spring Compressor     1    Follow the instructions above using Tooling (B) .Installation Procedure
Table 3
Required Tools    
Tool     Part Number     Part Description     Qty    
A     9U-6195     Valve Spring Compressor     1    
Illustration 3 g00659252
Illustration 4 g00825746
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
The valve spring keepers can be thrown from the valve when the valve spring compressor is released. Ensure that the valve spring keepers are properly installed on the valve stem. To help prevent personal injury, keep away from the front of the valve spring keepers and valve springs during the installation of the valves.
Lubricate the stems of inlet valves (6) and the stems of exhaust valves (6) with clean engine oil.
Install inlet valves (6) and exhaust valves (6) in the respective positions.
Install valve spring seat washers (5) .
Install new valve stem seals (4) .
Install valve springs (3) .Note: Install valve springs (3) on the valve spring seat washers. This is done with double valve springs.