ENGINE AR-COMPLETE 4447149 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 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.
Illustration 1 g01256779
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.
Use Tooling (A) in order to compress the inlet valve springs and the exhaust valve springs.
Remove retainer locks (1).
Remove Tooling (A).
Remove spring retainer (2).
Remove valve spring (3) from each valve (4). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01256779
Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install valve spring (3) on each valve (4).
Install spring retainer (2).
Use Tooling (A) in order to compress the inlet valve springs and the exhaust valve springs.
Install retainer locks (1). End By:
Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".