COUPLING AS 8S1506 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A (1)     9U-6895     Valve Guide Driver     1    
( 1 ) Part of 9U-7530 Engine Tool Group Start 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.
Illustration 1 g01003942
Remove valve stem seal (1) from valve guide (2) .
Use Tooling (A) and a hammer to remove the valve guide from the cylinder head.Installation Procedure
Table 2
Required Tools    
Tool    Part Number    Part Description    Qty    
A (1)     9U-6895     Valve Guide Driver     1    
B (1)     9U-6894     Guide Collar     1    
( 1 ) Part of 9U-7530 Engine Tool Group
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01003943
Lubricate the bores for the valve guides with clean engine oil.
Install valve guide (2) in the cylinder head with Tooling (A) and Tooling (B), as shown.Note: Tooling (B) must be used in order to install the valve guide to the correct height.Height to top of valve guide from cylinder head surface ... 35.00 0.50 mm (1.378 0.020 inch)Note: For more information, refer to Specifications, "Cylinder Head Valves".
Install valve stem seal (1) on the valve guide.End By: Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install".