Komatsu 12v140e-3 Series Engine Service Manual
Table of contents
Index and foreword
Index
Composition of shop manual
Table of contents
Foreword and general information
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling of electric equipment and hydraulic component
Handling of connectors newly used for engines
How to read electric wire code
Precautions when carrying out operation
Method of disassembling and connecting push-pull type coupler
Standard tightening torque table
Conversion table
Specification
Specification and technical data
Outline 2
Specifications
General view
Weight table
Engine performance curves
10 Structure, function and maintenance standard
Structure, function and maintenance standard, Part 1
Air intake and exhaust system
Air intake and exhaust unit
Air cleaner
Turbocharger
Aftercooler
Muffler 12
Engine unit
Cylinder head
Cylinder block
Cylinder liner
Main moving parts
Crankshaft
Camshaft
Cam follower, push rod
Piston, piston ring, and piston pin
Connecting rod
Flywheel and flywheel housing
Vibration damper
Timing gear
Valve system
Valve and valve guide
Rocker arm and shaft
Crosshead and guide
Structure, function and maintenance standard, Part 2
Lubrication system
Lubrication system diagram.
Komatsu 12v140e-3 Series Engine Service Manual
Oil pump
Oil cooler
Oil filter
Main relief valve
Oil cooler bypass valve and regulator valve
Fuel system
CRI system diagram
Outline of CRI system
Fuel piping
Fuel filter
Priming pump
Cooling system
Cooling system diagram
Water pump
Thermostat
Corrosion resistor
Cooling fan drive
Electrical equipment
Alternator
Starting motor
Starting aid
Engine controller
20 Standard value table
Standard service value table
Standard service value table
Standard service value table for testing, adjusting, and troubleshooting
Running-in standard and performance test standard
30 Testing and adjusting
Testing and adjusting
Testing and adjusting
Testing and adjusting tools list
Testing air boost pressure
Testing exhaust temperature
Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Measuring blow-by pressure
Testing oil pressure
Handling fuel system parts
Releasing residual pressure in fuel system
Testing fuel pressure
Reduced cylinder mode operation
No-injection cranking
Testing leakage-from pressure limiter and return rate from injector
Bleeding air from fuel circuit (for D475A-5)
Bleeding air from fuel circuit (for PC2000)
Testing fuel system for leakage
Adjusting speed sensor
Testing and adjusting alternator belt tension
Handling controller high-voltage circuit
40 Troubleshooting
General information on troubleshooting
General information on troubleshooting
Points to remember when troubleshooting