Service Repair Manual
323D LN and 323D S Excavator
Model: 323D LN EXCAVATOR RAC
Configuration: 323D LN & 323D S Excavators RAC00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09
Publication Date -01/10/2017
Date Updated -18/10/2017
Inlet and Exhaust Valve Guides - Remove and Install
SMCS - 1104-010
Tool Part Number
Valve Guide Remover
Lever Puller Hoist
Cylinder Head Repair Stand
A. Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and
Exhaust Valves - Remove and Install".
B. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit
Injector - Remove".
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
323D LN & 323D S Excavators RAC00001-UP (MACHINE) POWERED BY C6.4 E...
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
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Dispose of all fluids according to local regulations and mandates.
Note: Refer to Special Instructions, SMHS7953-00, "Use of Valve Seat Insert Puller Group" to
aid with the removal of the inlet and exhaust valve seats.
1. Attach Tooling (B) , Tooling (C) , and a suitable lifting device to cylinde