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MAINTENANCE
MAINTENANCE SCHEDULE CHART
ADJUST INJECTOR
This machine uses an engine that conforms with all exhaust gas regulations.
The exhaust gas regulations differ according to the applicable area. To ensure that the engine conforms with the
regulations in the area of use and can fully display its performance, keep to the following periodic maintenance
intervals when adjusting the injector.
If the periodic maintenance intervals are not observed correctly, the engine may not be able to display its
performance fully, and it may also not conform with the regulations.
NOTICE
When transporting a machine from an A regulation area to a B regulation area, always replace all the injector assemblies before
transporting the machine to the new area.
Check with your Komatsu distributor to confirm if your area of operation is an A regulation area or a B regulation area.
A REGULATION AREA
EPA regulation areas and areas with the regulations equivalent to EPA regulations
EVERY 2000 HOURS SERVICE
Check injector
Check the exhaust gas color visually. If there is any abnormality in the exhaust gas color, please ask your Komatsu
distributor to carry out inspection or replacement. For details of the procedure if any abnormality is found, see
Section "ENGINE (PAGE 3-128)".
EVERY 4000 HOURS SERVICE
Replace injector assembly
Ask your Komatsu distributor to carry out this work.
B REGULATION AREA
Areas not applying EPA regulations or areas not applying regulations equivalent to EPA regulations
EVERY 4000 HOURS SERVICE
Check injector
Check the exhaust gas color visually. If there is any abnormality in the exhaust gas color, please ask your Komatsu
distributor to carry out inspection or replacement. For details of the procedure if any abnormality is found, see
Section "ENGINE (PAGE 3-128)".
EVERY 8000 HOURS SERVICE
Replace injector nozzle tip
Ask your Komatsu distributor to carry out this work.
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