Description
Komatsu GD305A-3 Motor Grader Shop Manual (SEBM018000)
Komatsu GD305A-3 Motor Grader Index:
MAIN MENU
COVER
CONTENTS
SAFETY
FOREWORD
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
STANDARD TIGHTENING TORQUE
COATING MATERIALS
ELECTRIC WIRE CODE
WEIGHT TABLE
TABLE OF OIL AND COOLANT QUANTITIES
CONVERSION TABLE
10 STRUCTURE AND FUNCTION
P.T.O.
POWER TRAIN
TRANSMISSION
FINAL DRIVE
HYDRAULIC CIRCUIT SK714-5 (STANDARD)
HYDRAULIC CIRCUIT SK714-5 (HIGH-FLOW)
HYDRAULIC CIRCUIT SK714-5 (ROAD HOMOLOGATION)
HYDRAULIC CIRCUIT SK815-5 – SK815-5 turbo (STANDARD)
HYDRAULIC CIRCUIT SK815-5 – SK815-5 turbo (HIGH-FLOW)
HYDRAULIC CIRCUIT SK815-5 – SK815-5 turbo (ROAD HOMOLOGATION)
HYDRAULIC PUMP
CONTROL VALVE (3-SPOOL)
CONTROL VALVE (4-SPOOL)
CLSS
SOLENOID VALVE
ACCUMULATOR
PATTERN CHANGE VALVE (OPTIONAL)
R.H. PPC VALVE (STANDARD)
R.H. PPC VALVE (PATTERN CHANGE) (OPTIONAL)
L.H. PPC VALVE (STANDARD)
L.H. PPC VALVE – PATTERN CHANGE (OPTIONAL)
CYLINDERS
ELECTRICAL DIAGRAM (ENGINE LINE) (1/3)
ELECTRICAL DIAGRAM (FRAME LINE STANDARD) (1/3)
ELECTRICAL DIAGRAM (FRAME LINE OPTIONAL) (1/3)
ELECTRICAL DIAGRAM (CABIN LINE STANDARD) (1/5)
ELECTRICAL DIAGRAM (CABIN LINE OPTIONAL) (1/7)
ELECTRICAL DIAGRAM (TOP-CABIN LIGHT LINE STANDARD) (1/2)
ELECTRICAL DIAGRAM (TOP-CABIN LIGHT LINE OMOLOGATION) (1/2)
ELECTRICAL DIAGRAM (STANDARD)
ELECTRICAL DIAGRAM (OPTIONAL)
20 TESTING AND ADJUSTMENTS
NORMAL OR STANDARD TECHNICAL DATA
SPECIAL TOOLS
CHECKING THE ENGINE SPEED
ADJUSTMENT OF VALVE CLEARANCE (SK714-5 SK815-5)
ADJUSTMENT OF VALVE CLEARANCE (SK815-5 turbo)
MEASUREMENT OF THE COMPRESSION PRESSURE (SK714-5 SK815-5)
MEASUREMENT OF THE COMPRESSION PRESSURE (SK815-5 TURBO)
CONTROL AND ADJUSTMENT OF THE FAN BELT TENSION
CONTROL AND ADJUSTMENT OF THE INJECTION TIMING
CHECKING ENGINE OIL PRESSURE
ADJUSTING THE STROKE OF THE ACCELERATOR CABLES
REGULATION OF PPC VALVES’ DRIVE PRESSURE
ADJUSTMENT OF THE PPC VALVE CLEARANCES
ADJUSTING THE POSITION OF THE SERVO-CONTROL ENGAGEMENT SAFETY SENSOR
TESTING AND ADJUSTMENT OF GEARING CHAIN TENSION
CONTROL AND REGULATION OF THE PRESSURES IN THE HYDRAULIC CIRCUITS
TESTING THE HYDRAULIC PUMP
VALVE CALIBRATION
CHECKING THE TRAVEL DEVIATION
CONTROL VALVE
CONTROL AND REGULATION OF THE SERVO-CONTROL POWER SUPPLY
ELIMINATION OF RESIDUAL PRESSURES – PRESSURIZATION OF THE TANK
BLEEDING AIR FROM THE HYDRAULIC CIRCUITS
30 REMOVAL AND INSTALLATION
HOW TO READ THE MANUAL
PRECAUTIONS TO BE TAKEN WHILE WORKING
ENGINE HOOD
CAB
BATTERY
STARTING MOTOR
ALTERNATOR
MUFFLER (SK714-5 SK815-5)
MUFFLER (SK815-5 turbo)
TURBOCHARGER (SK815-5 turbo)
AIR INTAKE FILTER
VALVE COVER (SK714-5 SK815-5)
VALVE COVER (SK815-5 turbo)
NOZZLE (SK714-5 SK815-5)
NOZZLE (SK815-5 turbo)
INJECTION PUMP
CYLINDER HEAD (SK714-5 SK815-5)
CYLINDER HEAD (SK815-5 turbo)
COOLANT LIQUID PUMP
RADIATOR GROUP
FUEL TANK
CAB
ENGINE-PUMP GROUP
COMPLETE HYDRAULIC PUMP
GEAR PUMP
ENGINE-PUMP COUPLING
CONTROL VALVE
PPC VALVES
HUB WHEEL
FINAL DRIVE
RAISING CYLINDER
BUCKET CYLINDER
WORK EQUIPMENT CYLINDERS
COMPLETE WORKING EQUIPMENT
WORKING EQUIPMENT SUPPORT FRAME
40 STANDARD MAINTENANCE
P.T.O.
TRANSMISSION
FINAL DRIVE
HYDRAULIC PUMP
CONTROL VALVE
R.H. PPC VALVE
L.H. PPC VALVE
PATTERN CHANGE VALVE (OPTIONAL)
CYLINDERS
WORKING EQUIPMENT
