Bearing Housing - Takeuchi TB 175 Handbuch

(8) Bearing housing 15

1)Inspect the housing for cast surface exfoliation due
to oxidation and degradation, dent or crack.
2)Inspect circlip 16 for chipping or crack, and replace
with a new one if defective.
3)Measure the (B) and (F) portions of the bearing
housing shown in the figure below.
Replace with a new one if either wear limit is
exceeded.
Wear limit of bearing housing inside diameter (B)
RHF5 12.42 mm
RHB51 12.42 mm
RHB31 10.01 mm
Wear limit of turbine side seal ring inserting
portion (F)
RHF5 15.05 mm
RHB51 15.05 mm
RHB31 11.03 mm
(9) Seal plate 4
1)Inspect the seal plate for any contact trace, joint sur-
face defect, dent or crack.
Replace it if defective.
2)Measure the seal ring inserting dimensions (H1 and
H2) on the compressor side, and replace the seal
ring with a new one if either wear limit is exceeded.
Wear limits
RHF5 H1: 12.45 mm, H2: 10.05 mm
RHB51 H1: 12.45 mm, H2: 10.05 mm
RHB31 H1: 10.04 mm, H2: 8.01 mm
(10)Seal rings
Replace seal rings with new ones.
(11)Inspect keep plates 10, 13 and bolts for
any deformation, and replace defective
parts with new ones. Also replace M3 Torx
machine screws with new ones.
Bearing fitting ring
Inner plate
F
Turbine side
H1
133
8. TURBOCHARGER
Compresser
side
H2