Komatsu K21K25 Series Forklift Trucks Engine SM301 (Preview)
INTRODUCTION
AN OVERVIEW OF MAJOR IMPROVEMENTS FROM CURRENT H-TYPE ENGINES TO THE NEW K-ENGINES
APPLICABLE “EPA” LIFT TRUCK MODELS
K-ENGINE SERIAL NUMBER BREAKS BY MODEL YEAR
Precautions
Draining Engine Coolant
Disconnecting Fuel Piping
Removing and Disassembling
Inspection, Correction, and Replacement
Assembly and Installation
Parts Requiring Angle Tightening
Use of Power Tools
Liquid Gasket Application
Engine Outside Drawings
Main Specifications
Adjustment Value
Tightening Torque
Standard Bolt Tightening Torque
Engine Part Tightening Torque
Trouble Shooting
Special Service Tools
Removal And Installation Of Engine
Removal
Installation
Inspection
Engine Service
Engine Disassembly
Inspection and Correction
Engine Assembly
Engine Types
Engine Outside Drawings
System Diagram
Unit Layout
Service Data And Specifications (SDS)
LPG Fuel System Trouble Diagnosis
Disassembly And Assembly Of Fuel System
Removal and Installation of LPG Injector Drive Unit Connector
Removal and Installation of Electronic Control Throttle Assembly
Removal and Installation of Gasoline Fuel Injector (Electronic Controlled Gasoline and Combined Use)
LPG device (Specifications for LPG and Combined Use)
Holder Assembly
LPG Fuel Injector
LPG Assist Fuel Injector
LPG Fuel Pressure Sensor
Vaporizer Mechanism and Operation
Disassembly And Assembly Of Injector Holder
LPG Fuel Injector
LPG Assist Fuel Injector
LPG Fuel Pressure Sensor
Relief Valve (2 Relief Valves)
Disassembly And Assembly Of Vaporizer
Lubrication System
Specifications
Adjustment Value
Oil Pressure
Tightening Torque
Trouble Shooting
Lubrication Schematic Diagram
Oil Pump
Engine Coolant System
Specifications
Adjustment Value
Tightening Torque
Trouble Shooting
Cooling System Configuration
Water Pump
Thermostat
LUBRICATION SYSTEM
ENGINE COOLANT SYSTEM
Engine And Main Body
Description
Main Engine System
Cylinder Block
Cylinder Head
Cylinder Head Gasket
Cylinder Head Bolt
Piston, Piston Pin and Piston Rings
Connecting Rod and Connecting Rod Bearing
Crankshaft
Main Bearing and Bearing Cap Bolts
Oil Seal
Crankshaft Pulley Bushing
Crankshaft Pulley and Pulley Bolt
PTO (Power Take-Off)
Oil Pan
Rocker Cover and Gasket
Valves
Description
Camshaft
Timing Chain and Sprocket
Valve Related Parts
Lubrication System
Description
Oil Pump
Oil Strainer
Oil Filter
Engine Oil and Oil Level Gauge (Dipstick)
Intake / Exhaust
Description
Manifold Component Parts Location
Engine Intake System Component Parts Location
Electric Throttle Control Actuator (ETCA)
Intake Manifold
Exhaust Manifold
Engine Control System
Circuit Diagrams of Engine Control Module
Gasoline
LPG
Dual Fuel
Dual Fuel – EPA Tier 2 (2007)
Engine Control System
Fuel System Diagrams
Gasoline
LPG
Dual Fuel
Gasoline – EPA Tier 2 (2007)
LPG – EPA Tier 2 (2007)
Dual Fuel- EPA Tier 2 (2007)
ECM Terminal Layout
Fuel Injection Control
PCV Gas Recirculation Device
Coolant System
Description of Coolant System
Specifications
Construction
Fuel System Description
Engine Control System
APPENDIX 1. Theory of Fuel Injection Pulse Width Indication
APPENDIX 2. Service Support Tool Exercise Program
APPENDIX 3. Error Code List
Engine Control System
APPENDIX 4. Diagnostic Monitor Service Support Tool (SST)
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