Every 3000 Hours Maintenance; Every 4000 Hours Maintenance; Method For Checking And Cleaning Fuel Injection System; Method For Checking, Cleaning And Testing Egr Valve - Komatsu PC80MR-5E0 Operation & Maintenance Manual

MAINTENANCE PROCEDURE MAINTENANCE

EVERY 3000 HOURS MAINTENANCE

Maintenance for every 100, 250, 500, 1000 and 1500 hours should be performed at the same time.

METHOD FOR CHECKING AND CLEANING FUEL INJECTION SYSTEM

If the fuel injection system does not operate normally, engine performance cannot be obtained thoroughly. It is
necessary to check and clean the fuel injection system. Special tools are needed for inspection and mainte-
nance, so ask your Komatsu distributor to perform this work.

METHOD FOR CHECKING, CLEANING AND TESTING EGR VALVE

The EGR valve is a key component for cleaning exhaust gas.
To prevent the valve from deteriorating in exhaust recirculation performance due to carbon accumulation, con-
tact your Komatsu distributor for checking, cleaning and testing.

METHOD FOR CHECKING AND TESTING INTAKE/EXHAUST THROTTLE VALVE

The intake throttle valve can effect the exhaust gas treatment performance.
The exhaust gas property depends on the exhaust throttle valve.
Contact your Komatsu distributor for checking and testing.

METHOD FOR CHECKING AND CLEANING INJECTOR

Check the injector tip.
Clean the injector tip with a soft brush or replace it if necessary.

METHOD FOR CHECKING ECU AND RELATED SENSORS AND ACTUATORS

Inspect the appearance and wirings of the ECU and related sensors and actuators and check the occurrence
status of error history on monitor machine. Ask your Komatsu distributor to inspect, repair or replace.

EVERY 4000 HOURS MAINTENANCE

Maintenance for every 100, 250, 500, 1000 and 2000 hours should be performed at the same time.

REPLACE DEFINED LIFE PARTS

Material quality of these parts can change as time passes and they are likely to wear out or deteriorate.
Replace them every 2 years or every 4000 hours, whichever comes sooner.
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