Yanmar 6LY3 series Service Manual page 223

6LY3 Service Manual
TURBOCHARGER
Safety Precautions .......................................................................... 9-3
Introduction...................................................................................... 9-3
Turbocharger Components and Functions...................................... 9-4
Turbine ...................................................................................... 9-5
Compressor ............................................................................... 9-5
Bearings .................................................................................... 9-5
Seal Structure of the Compressor Housing ............................... 9-5
Maintenance Standards .................................................................. 9-6
Standard Limits.......................................................................... 9-6
Torque Chart ............................................................................. 9-8
Turbocharger Periodic Inspections.................................................. 9-9
Inspection Intervals.................................................................... 9-9
Checking the Rotor Rotation ..................................................... 9-9
Checking the Rotor Axial Play ................................................. 9-10
Checking the Rotor Radial Play............................................... 9-11
Disassembling the Turbocharger .................................................. 9-12
Special Tools ........................................................................... 9-12
Inspecting the Turbocharger Before Disassembling................ 9-14
Disassembling the Turbocharger............................................. 9-14
Inspecting the Turbocharger ......................................................... 9-15
Inspecting Major Items ............................................................ 9-15
Cleaning the Turbocharger...................................................... 9-15
Inspecting the Turbocharger Components .............................. 9-16
Assembling the Turbocharger ....................................................... 9-19
Installing the Floating Bearings ............................................... 9-19
Installing the Turbine Rotor Shaft ............................................ 9-20
Installing the Thrust Bearing.................................................... 9-20
6LY3 Service Manual
Section 9
© 2007 Yanmar Marine International
Page
9-1