COUPLING AS- 2700290 - Caterpillar

Disassembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1855     Retaining Ring Pliers     1    Start By:
Remove the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01345402
Make an identification mark on each rocker arm assembly in order to show the location. Note the mark at position (X) for installation purposes.Note: The components must be reinstalled in the original location. Do not interchange components.
Use Tooling (A) to remove retaining rings (8) .
Remove rocker arm assembly (5) .
Remove pedestal (6) from rocker shaft (3) .
Remove rocker arm assembly (7) .
Remove spring (4) .
Repeat Steps 3 through 6 in order to remove the remaining rocker arm assemblies from rocker shaft (3) .
If necessary, remove nuts (1) and adjusters (2) from the rocker arms. Make a temporary identification mark on each adjuster in order to show the location.Note: The components must be reinstalled in the original location. Do not interchange components.