ABB TPS52-F31 Operation Manual

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ABB TPS52-F31 Operation Manual Manual pdf 80 page image

Operation Manual / TPS44-F.. - TPS61-F..Troubleshooting 6Surging of the turbocharger 6.2 Page 78© Copyright 2016 ABB. All rights reserved.September 2016HZTL2412_ENRevision FSurging of the turbocharger6.2Turbocharger surgingPossible causes EliminationEngine Guard in front of the turbo-charger is contaminated ordamagedClean / replace itTurbocharger Filter silencer or diffuser con-taminatedClean itHeavy deposits of dirt in theturbine or nozzle ringCharge aircoolerCooler contaminated Clean itCharge air duct blockedCAUTIONProlonged or periodic surgingPossible damage to components, such as the compressor wheel, tur-bine blades, bearings and filter silencer Have the cause clarified immediately by an ABB Turbocharging ser-vice station and rectified. Have components inspected for damage and, if necessary, replacedby an ABB Turbocharging service station.Sporadic surge blowsSurging of the turbocharger can occur during certain operating conditionssuch as when reducing the engine performance quickly when manoeu-vring. At the same time, the flow direction in the compressor is momentari-ly reversed. Such sporadic surge blows do not impair the safe operation ofthe turbocharger. A surge blow is accompanied by a loud bang and escape of hot airfrom the filter silencer.6.2