IDLER & BEARING AS 2945349 - Caterpillar

Illustration 17 g01437357
The crack must be less than 20 mm (0.7874 inch) in order to reuse the turbocharger.Crack in the bore of the heat shield
Illustration 18 g01138372
ReusableCrack in the bore of the heat shieldReuse criteria for cracks in the bore of the heat shield:
Cracks in the bore of the heat shield should not have a gap that is greater than 1 mm (0.0394 inch).
The length of the crack should not be greater than 20 mm (0.7874 inch).Exterior Cracks in the Turbine Housing
The following cracks in the turbine housing are not acceptable. Do not reuse the turbine housing if the following types of cracks are found:
Cracks that are visible on the exterior of the turbine housing should not be used. Refer to Illustrations 19, 20, and 21.
Cracks in the divider wall at the exhaust gas inlet flange should not be reused. Refer to Illustration 22.Cracks that are Visible on the Exterior of the Turbine Housing
Illustration 19 g01138374
Do not reuse the turbocharger housing.Exterior crack in the inlet flange area
Illustration 20 g01138375
Do not reuse the turbocharger housing.Exterior visible cracks
Illustration 21 g01138376
Do not reuse the turbocharger housing.Exterior crack in the inlet flange areaCracks in the Flange of the Exhaust Inlet
Illustration 22 g01138448
Do not reuse the turbocharger housing.Crack in divider wall of the exhaust inlet Reuse Information for Corrosion of the Turbine Housing
Housings with excessive scaling or corrosion on any area of the turbine housing should not be reused. The worst scaling is typically found on the divider wall at the exhaust gas inlet. Note: Scaling is an indication of higher than normal exhaust gas temperature. Further investigation may be necessary in order to determine the root cause of the scaling.Scaling occurs as cracks develop in the layers of corrosion. The cracks allow corrosion to flake from the wall of the turbine housing. Thermal expansion and contraction during normal operation can contribute to scaling.Corrosion of the turbine housing
Scaling and Cracking of the Exhaust Divider Wall
Illustration 23 g01138491
Do not reuse the turbocharger housing.Scaling and cracking of the exhaust divider wall Material is flaking from the corroded area.Corrosion on the Divider Wall and Interior Housing Surface
Corrosion typically occurs in turbine housings without material that is flaking from the surface. This type of corrosion is acceptable. The surfaces that are shown in Illustration 24 and Illustration 25 are acceptable.Corrosion Without Material that is Flaking Off of the Housing
Illustration 24 g01439381
ReusableCorrosion without material that is flaking from the housing
Illustration 25 g01439383
ReusableCorrosion without material that is flaking from the housingCorrosion of the surface with material that is flaking from the housing
Illustration 26 g01138498
Do not reuse the turbocharger housing.Corrosion of the surface with material that is flaking offSevere corrosion that results from higher operating temperatures will result in material that flakes off the surface of the turbine housing. This level of corrosion is unacceptable. The housing should not be reused.