Service Repair Manual
Models
325C EXCAVATOR
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Product: EXCAVATOR
Model: 325C EXCAVATOR S2C
Configuration: 325C Material Handler S2C00001-UP (MACHINE) POWERED BY 3126 Engine
Disassembly and Assembly
3126B Engines for Caterpillar Built Machines
Media Number -SENR9581-06
Publication Date -01/08/2018
Date Updated -17/08/2018
i02374873
Inlet and Exhaust Valves - Remove and Install
SMCS - 1105-010
Removal Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
5S-1330
Valve Spring Compressor
1
Start By:
a. Remove the cylinder head assembly. Refer to Disassembly and Assembly, "Cylinder Head -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 1
g00991548
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.
1. Use Tooling (A) to compress valve spring (4). Remove retainer lock (6).
2. Remove Tooling (A). Remove spring retainer (5), valve spring (4), and washer (3).
3. Remove valve seal (1) and valve (2).
4. Repeat Steps 1 through 3 in order to remove the remaining inlet valves and exhaust valves.
Installation Procedure
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Table 2
Required Tools
Tool Part Number
Part Description
Qty
A
5S-1330
Valve Spring Compressor
1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Illustration 2
g00991548
The valve spring keepers can be thrown from the valve when the valve
spring compressor is released. Ensure th