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ENGINE DIVISION SERVICE MANUAL
TM 5-4210-230-14&P-1
PART I
EMISSION CONTROL SYSTEMS
AND
SERVICE OPERATIONS
In compliance with various government air polution regulations, the IH engine is equipped with emission control systems that
effectively reduce the flow of exhaust gas contaminants below permissible limits.
To function effectively, these emission control systems must be properly maintained and it is important that maintenance
operations be performed at specified intervals as indicated under Required Maintenance Operations.
Service intervals given are based upon average operating conditions. Where dusty, frequent start and stop or heavily laden
operations are encountered, more frequent servicing will be required.
The engine (vehicle) owner is responsible for performance of all scheduled Required Maintenance Operations and any other
non-scheduled maintenance needed, to ensure proper operation of the exhaust emission control system(s).
Required maintenance operations should be performed by an International Harvester dealer, or other service outlet equipped
and qualified to perform such services. Any replacement parts used for required maintenance services or repairs of emission control
systems should be equivalent in quality and performance to genuine IH parts. Use of inferior replacement parts may result in
improper operation of emission control systems.
As shown on the exhaust emission effects chart, engines sold for use in the U.S.A. (49 States and California) are equipped
with emission controls that are not the same as those used on engines sold for use in Canada. This is because of the different air
polution standards in effect.
CGES-215 Page 3
PRINTED IN UNITED STATES OF AMERICA
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