SOP for maintenance of ABB turbocharger Model VTR354 A. Installed on NIIGATA engine 16V32CLX

1. Turbocharger over hauling procedure VTR354 A-11(ABB)
 Remove inletcasingof blower…
Inletcasingof turbochargerblowerside
Interiorof inletcasing blowerside
Bloweroutletcasingtocharge air cooler
Blowerinletcasingtooutletcasing

2.  Before removingspace coversdrainoutlubricationoil fromdrainplugbothside.(blower&
exhaust)
Space cover blower side
1. Lube oil make up plug.
2. Tachometerforspeedcheckingof turbocharger.
3. Lube oil level screenandsource forcheckinglubricationof bearings.
4. Bass forthermometerforcheckinglube oil temperature.
5. Drain plugforlube oil.
Space cover exhaust side
1
2
3
4
5

3.  Remove drainpluganddrainlube oil.
 Check deflectionbothside (blower& exhaust)
Taking deflection in picture from blower side, exhaust side deflection also take as well as from slinger pump cone.
 Aftertakingdeflection remove slingerpumpcone bothside(B&E)
Cone
Deflectiongauge

4.  Afterremovingcone remove rooternutwithspecified toll.Due toremovingrooternutslinger
plate free fromturbochargersokeepitin side.When slingerplatesfreeB&Eside bearing
appears…
Blower side bearing
 Remove bearing with loosen Ellen head bolt that holD bearing in space housing.
Rooternut
Toll
Bearing
Rootershaft

5.  Afterremovingbearingremove intakediffuserbutbefore removingdiffusermustinstalled
locatingtoll onrootershaftas fallow…
DiffuserAssembly
Locatingtoll
Diffuser

6.  Removingdiffuserfrombloweroutletcasingwithtoll andwiththe helpof chainblockandover
headcrane.
 Afterremovingdiffuserremove locatingtool fromrootershaft.
 Afterremovinglocatingtoll fromblowerside engage twospecifiedtool rodinexhaustside
rootershaftto extendlengthtoavoidfromanydamage inother wordfor easilyremoverooter
fromturbochargercasing.
 Extensionrodsforremovingrooterfromcasing.
Rooter

7.  Afterremovingrooterremove exhaustnozzle withloosenthe boltthatholdsthe nozzle.

8. Tools