Komatsu 4D98 Series Shop Manual page 111

8. Turbocharger (for 4TNE106T)
L.O. inlet
(2.4) Seal plate installation
0
Fit the seal ring on oil thrower 2.
@ Insert oil thrower 2 into seal plate 4.
Note) The seal ring joint portion shall be positioned as il-
lustrated above.
@ Apply liquid gasket (Three Bond No. 1207) on the seal plate
mounting surface on the compressor side of bearing hous-
ing 15.
View from the compressor
Note) See the illustration at right for the applying position.
Applying thickness : 0.1 to 0.2 mm
@
Install seal plate 4 on bearing
housing 15.
@
Apply Locktite on the threaded
portion of M3 machine screw
for seal plate mounting, and
tighten it with a torque screw-
driver.
Tightening torque:
13&l kgf-cm (1.3fO.l N-m)
(2.5) Compressor impeller installation
(iJ Fit compressor impeller 18
onto turbine shaft 1.
@ Set a box spanner (10 mm) on
the turbine side end of turbine
shaft 1, and tighten shaft end
nut 19.
Liquid gaske
applyinq position
_ -.
Carefully prevent the liquid
gasket from leaking out to
this area.
by aligning the match marks put before
Note) Since the shaft end
nut has left-handed
screw, pay attention
to the tightening direc-
tion.
Tightening torque: 20x2 kgf-cm (2.0H1.2 N-m)
(2.6) Turbine housing installation
0
Install bearing housing 15 on turbine housing 11
disassembly.
Note) In case of part replacement, check the oil inlet and outlet positions and the ex-
haust gas inlet position before reassembly.
@ Install the turbine side keep plate and tighten M8 hexagon bolt 12.
Tightening torque: 285flO kgf-cm (28fl N-m)
8-15