Komatsu Engine 125E-5 series workshop service manual

Description Komatsu Engine 125E-5 series workshop service manual

Komatsu Engine SAA6D125E-5 series pdf workshop service & repair manual

Technical data, specifications, maintenance, testing, troubleshooting, schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
Index and foreword
Foreword and general information

Specification
Specification and technical data

Structure, function and maintenance standard
General structure
Air intake and exhaust unit
Air cleaner
Turbocharger
Aftercooler
EGR system
Cylinder head
Cylinder block
Cylinder liner
Main moving parts
Crankshaft
Camshaft
Cam follower and 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
Lubrication system
Fuel system
Cooling system
Electrical equipment

Standard value table
Standard service value table

Testing and adjusting
Testing and adjusting (With EGR)
Testing and adjusting tools list
Sketches of special tools
Testing air boost pressure
Testing exhaust temperature
Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Testing engine oil pressure
Measuring EGR valve and bypass valve drive 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
Testing fuel system for leakage
Adjusting speed sensor
Testing and adjusting alternator belt tension
Handling controller voltage circuit

Testing and adjusting (EGR-less)
Testing and adjusting tools list
Sketches of special tools
Testing air boost pressure
Testing exhaust temperature
Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Testing engine 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
Testing fuel system for leakage
Adjusting speed sensor
Testing and adjusting alternator belt tension
Handling controller voltage circuit

Troubleshooting
General information on troubleshooting
Troubleshooting of electrical system (E-mode)
Troubleshooting of mechanical system (S-mode)

Disassembly and assembly
General information on disassembly and assembly
Disassembly and assembly (With EGR)
General disassembly of engine
General assembly of engine
Disassembly and assembly (EGR-less)
General disassembly of engine
General assembly of engine
Removal and installation of fuel supply pump unit
Replacement of oil seal of engine mounted on machine

Repair and replacement of parts
Information related to repair and replacement
Flowchart
Special tool table
Special tool sketch
Parts related to cylinder head
Part names related to cylinder head
Testing and inspection of cylinder head
Pressure test of cylinder head
Replacement of valve guide
Replacement of valve seat insert
Replacement of crosshead guide
Repair of valve by grinding
Parts related to cylinder block
Part names related to cylinder block
Testing and inspection of cylinder block
Part names related to crankshaft
Testing and inspection of crankshaft
Part names related to connecting rod
Testing and inspection of connecting rod
Replacement of flywheel ring gear
Replacement of camshaft gear
Replacement of main bearing metal cap
Replacement of connecting rod small end bushing
Replacement of cam bushing
Replacement of engine rear seal
Replacement of wear sleeve (when sleeve is installed)
Repair of crankshaft by grinding