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Maintenance Standards
Shaft & turbine wheel and turbine housing clearance, mm [in.]
Standard Clearance .. 0.63 to 1.18 [0.02480 to 0.04646]
Shaft end play, mm [in.]
Assembly Standard ... 0.075 to 0.135 [0.00295 to 0.00531]
Turbine backplate and turbine wheel clearance, mm [in.]
Standard Clearance ... 0.55 to 1.15 [0.02165 to 0.04528]
Lubrication system
Oil Pump
Backlash between drive gear and driven gear, mm [in.]
Assembly Standard ... (0.10 to 0.20) [0.0039 to 0.0079]
Service Limit ............. (0.4) [0.0157]
Drive gear and driven gear clearance, mm [in.]
Nominal Value ........... Ø60 [2.36]
Standard Clearance .. (0.100 to 0.148) [0.00394 to 0.00583]
Clearance .................. Tip clearance (0.35) [0.0138]
Gear and clearance in case, mm [in.]
Nominal Value ........... 72.5 [2.854]
Standard Clearance .. (0.040 to 0.116) [0.00157 to 0.00457]
Clearance .................. [0.21] [0.0083]
NOTE! Remove the cover packing (width of 0.04 [0.0016]) for mesurement.
Shaft diameter, Drive shaft, mm [in.]
Nominal Value ........... Ø30 [1.18]
Assembly Standard ... 29.887 to 29.000 [1.17665 to1.17717]
Service Limit ............. 29.840 [1.17480]
Shaft diameter, Drive shaft, mm [in.]
Nominal Value ............ Ø30 [1.18]
Assembly Standard ... 29.947 to 29.960 [1.17901 to 1.17953]
Service Limit ............. 29.900 [1.17716]
Bushing inside diameter, mm [in.]
Nominal Value ........... Ø30 [1.18]
Assembly Standard ... 30.000 to 30.021 (1.18110 to 1.18193)
Service Limit ............. 30.055 [1.18327]
Safety valve
Valve opening pressure MPa (Bar) [psi]
Assembly Standard .... 1.27±0.13 (13S±1.3) [185±18.5]
Spring set length/load mm [in.]/N (kgf) [lbf]
Assembly Standard ... 65.8 [2.59]/359 (36.6) [80.7]
Service Limit ............. 65.8 [2.59]/314 (32) [70.5]
Relief valve
Valve opening pressure, MPa (Bar) [psi]
Assembly Standard .... 0.5±0.02 (5±0.2) [71.1±2.84]
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