Komatsu SAA6D140E-3 - Page 79

140-3 SERIES
11-15
STRUCTURE AND FUNCTION, MAINTENANCE STANDARD TURBOCHARGER
Unit: mm
No. Check item Criteria Remedy
1 End play (Play in axial direction)
Standard Repair limit Replace
parts
related
to thrust
0.08 – 0.13 0.18
2 Radial play (Play in radial direction) 0.25 – 0.44 0.60
Replace
parts
related to
bearing
3
Outside diameter or journal bearing
Inner diameter of center housing
Standard
size
Tolerance Repair limit
Replace
Shaft Hole Shaft Hole
25
–0.050
–0.067
+0.021
0
24.92 25.03
4
Inner diameter of journal bearing
Outside diameter of wheel shaft
17
–0.032
–0.043
+0.009
–0.003
16.95 17.04
Bend of wheel shaft Repair limit: 0.010 (Total indicated runout)
5 Thickness of thrust bearing
Standard
size
Tolerance Repair limit
Shaft Hole Shaft Hole
5
–0.08
–0.11
+0.02
0
4.86 5.04
6 Thickness of seal ring
Turbine
side
2.3
–0.08
–0.10
–0.03
–0.04
2.15 2.35
Blower
side
2
–0.08
–0.10
–0.03
–0.04
1.85 2.05
7
Clearance between blower housing
and impeller
Tolerance(min.): 0.20
Replace
parts