SERVICE MANUALTURBOCHARGERSSection 1NOTE: It is imperative that the air-cleaner serviceoutlined In the Operator’s Manual be rigidly followedbecause of the power losses and oil leakage Into theIntake manifold that can be Incurred with a restrictedair cleaner.20.To ensure proper sealing of the air intake systeman air Induction test Is recommended. Consultyour authorized IH Distributor for the properprocedure to be followed.21.Intake restriction should be measured with theengine under full load (maximum TurbochargerAir Flow) prior to changing a Turbocharger for oilseal leakage and always after turbochargerreplacement.NOTE: Maximum allowable Inlet restrictionmeasured under full load varies according to theapplication but is always less than 30 In.H20.22.A plugged crankcase breather element cancause excessive crankcase pressure andprevent oil drainage from the Turbocharger oilseals to "Flood" which results in internal andexternal oil leakage. CLEAN the CRANKCASEBREATHER element and piping as required.(Refer to Section 6).Engine Starting Procedure after Installing aTurbocharger:1.Change the engine lubricating oil with the typespecified in the Operator’s Manual and at theproper operating level. ThisisveryimportantifaTurbochargerfailurehasoccurred.2.Crank the engine without starting until oilpressure is indicated on the oil pressure gauge.This should provide an adequate amount of oil tolubricate the turbocharger.3.Start the engine and operate at low RPM for afew minutes before loading engine.NOTE: During operation, the Turbocharger shouldbe free from vibration or unusual noises.NOTE: During shutdown periods or when the unit Isbeing transported, the exhaust stack must becovered to prevent water from entering anddamaging the turbine.CGES-185-3PRINTED IN UNITED STATES OF AMERICAPage 10
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