Service Repair Manual
321D LCR EXCAVATOR
Model: 321D LCR EXCAVATOR MPG
Configuration: 321D LCR Excavator MPG00001-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
Electronic Unit Injector - Remove
SMCS - 1290-011
Tool Part Number
Fuel System Protection Gp(1)
(1) This tool can only be used one time.
a. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install".
b. Remove the fuel Injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines
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
321D LCR Excavator MPG00001-UP (MACHINE) POWERED BY C6.4 Engine(SE...
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.
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Do not open the high pressure fuel system without allowing the fuel
system to purge. After the engine has shut down, allow the fuel system to
purge for ten minutes. This operating fuel system contains high
pressure. Exposure to high pressure fuel can result in personal injury.
Note: Before opening the fuel system, the engine must be turned off for at least one minute.
Note: Use Caterpillar Electroni