Service Repair Manual
Models
325C, 325C L and 325C LN
Excavator
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Product: EXCAVATOR
Model: 325C EXCAVATOR CRB
Configuration: 325C L & 325C LN Excavator CRB00001-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
i01196838
Camshaft - Remove
SMCS - 1210-011
Removal Procedure
Start By:
a. Remove the lifter group. Refer to Disassembly and Assembly, "Lifter Group - Remove and
Install".
b. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
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Dispose of all fluids according to local regulations and mandates.
1. Turn the crankshaft to top center compression stroke for the No. 1 piston. Install the timing
bolt in the flywheel. This is for timing during installation.
2. Ensure that the timing marks on the following gears are aligned: the camshaft drive gear, the
idler gear and the crankshaft gear.
Note: It is not necessary to remove the cylinder head for removal of the camshaft.
3. Wire the valve lifters away from the camshaft.
Illustration 1
g00640035
4. Remove two bolts (3) and camshaft retainer plate (2) from camshaft gear (1).
Illustration 2
g00640030
5. Remove camshaft (4) from the cylinder blo