HARNESS AS-FRONT 5598643 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 459-4664 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 g01206603
Illustration 2 g01207146
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.
Install Tooling (A) into the hole for the electronic unit injector. Refer to Illustration 2. Refer to the Tool Operating Manual, NEHS1205.
Illustration 3 g01851274
Install the plate of Tooling (A) onto the valve springs. Refer to Illustration 3. Install the nut onto the stud. Tighten the nut to compress valve springs (2). Remove retainer locks (1).
Illustration 4 g01298522
Remove Tooling (A). Remove rotocoil (3), outer spring (4), and inner spring (5).
Repeat Steps 1 through 3 for the remaining valve springs.Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 333-0758 Valve Spring Compressor 1
Illustration 5 g01298522
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 inner spring (5), outer spring (4), and rotocoil (3).
Illustration 6 g01851274
Use Tooling (A) to compress valve springs (2). Install retainer locks (1). Release the tension on valve springs (2). Remove Tooling (A).
Repeat Steps 1 through 2 for the remaining valve springs.End By:
Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".