Komatsu Wheeled Excavator PW98MR-6 service & repair manual

Description Komatsu Wheeled Excavator PW98MR-6 service & repair manual

Komatsu Wheeled Hydraulic Excavator PW98MR-6 pdf workshop service & repair manual

Serial number F00003 and up

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

MANUAL CONTENT:
STRUCTURE AND FUNCTION
P.T.O
FRONT AXLE
TRANSMISSION
REAR AXLE
STEERING UNIT
PRIORITY VALVE
SWING CIRCLE
SWING MACHINERY
SWIVEL JOINT
WORK EQUIPMENT CYLINDER
AXLE LOCKING CYLINDER
SOLENOID VALVE GROUP
HYDRAULIC PUMP
CONTROL VALVE
CLSS
SWING MOTOR
TRAVEL MOTOR
DISPLACEMENT AUTOMATIC CONTROL HIGH
PRESSURE RELATED
TRAVEL MOTOR BRAKE VALVES
TRAVEL PPC VALVE
ATTACHMENT
BLADE, BOOM SWING, 2-PIECE BOOM
PPC VALVES
BRAKES PUMP
EQUIPMENT

TESTING AND ADJUSTMENTS
NORMAL OR STANDARD TECHNICAL DATA
FOR THE ENGINE
FOR MACHINE
PUMP FEATURES
CHECK POSITIONS
SPECIAL TOOLS
MEASURING THE ENGINE SPEED
1. Measuring engine speed
2. Measuring engine speed to check compression pressure
CHECKING THE EXHAUST SMOKE COLOUR
1. Checking with tool G1
2. Checking with tool G2
ADJUSTING VALVE CLEARANCE
CHECKING COMPRESSION PRESSURE
TESTING AND ADJUSTING FUEL INJECTION TIMING
1. Adjust timing using reference marks
2. When the injection pump is installed after being overhauled
CHECKING ENGINE OIL PRESSURE
ADJUSTING – CHECKING FUEL CONTROL LEVER LINKAGE
1. Adjustment
2. Test
ADJUSTING THE TACHOMETER SENSOR
ADJUSTING PPC VALVE CLEARANCE
ADJUSTING PPC VALVES CLEARANCE
MEASURING THE SWING CIRCLE AXIAL CLEARANCE
1. Test procedure
ADJUSTING THE REVOLVING FRAME ALIGNMENT SENSOR
AIR BLEEDING FROM HYDRAULIC CIRCUITS
Order for operations
1. Bleeding air from pump
2. Bleeding air from pump and tank
3. Bleeding air from LS circuit
4. Bleeding the air from the steering circuit
5. Bleeding air from hydraulic cylinders
6. Bleeding air from swing motors
7. Air bleeding from travel motor
8. Bleeding air from the revolving frame servocontrol circuit
RELEASING RESIDUAL PRESSURE FROM THE
CIRCUITS
1. From hydraulic circuits
2. From the brake line accumulators
CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS
Introduction
TESTING AND SETTING OF MAIN VALVES
1. Main relief valve (Section 1)
2. Main relief valve (Section 2)
3. Main valves setting
CHECKING AND ADJUSTING THE LS (Load Sensing)
VALVE
1. With differential pressure gauge C5
2. With analog pressure gauge
3. Adjusting the valve
CHECKING SERVO-CONTROL CIRCUIT PRESSURE
1. Checking
2. Adjusting
CHECKING PPC VALVE DELIVERY PRESSURE
CHECKING SOLENOID VALVE OUTPUT PRESSURE
1. Checking the boom swing stop proportional solenoid valve
2. Checking ON-OFF valves
CHECKING THAT THE PRIORITY VALVE IS FUNCTIONING CORRECTLY
1. Checking the Load Sensing signal
2. Checking that the priority valve is functioning correctly
CHECKING AND REGULATING THE PRESSURE OF THE STEERING SYSTEM
1. Test
2. Adjusting
CHECKING LEAKAGES IN THE STEERING CYLINDERS
CHECKING THE BRAKING SYSTEM
1. Checking accumulator recharging pressure
2. Pressure at which to start recharging the accumulators
3. Checking the braking pressure
4. Check the leaktightness of the hydraulic braking circuit
5. Checking the leaktightness of the brake groups
6. Checking the alarm pressure switch setting for insufficient braking pressure
7. Checking the braking light pressure switch
CHECKING WEAR IN THE BRAKE DISKS
AIR BLEEDING FROM FROM THE BRAKE LINES
ADJUSTING THE PARKING BRAKE
TRAVEL HYDRAULIC EQUIPMENT CHECKING PROCEDURE
1. Top portion of the equipment
2. Bottom part of the equipment
CHECKING AND ADJUSTING THE AUTOMATIC
DISPLACEMENT CONTROL SYSTEM OF THE TRAVEL MOTOR
1. Test
2. Adjusting
CHECKING FOR LEAKAGES IN THE TRAVEL MOTOR
CHECKING AND ADJUSTING THE SPEED OF THE TRAVEL PROPELLER SHAFT
1. Test
2. Adjustment
ADJUSTMENT OF THE SPEED SURVEYOR
MEASUREMENT OF INTERNAL OIL LEAKAGES IN THE SWING MOTOR
CHECKING FOR LEAKAGES INSIDE
THE SWIVEL JOINT
1. Functionality test
2. Identification of defective seal
3. Preparation for testing
4. Preparation for testing the blade
5. Test
ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS
1. Boom test
2. Arm test
3. Testing the functionality of the boom and arm safety valve
4. 2nd boom test
5. Testing the functionality of the 2nd boom safety valves
6. Bucket test
7. Boom swing test
8. Outriggers test
9. Blade test
10. Swing motor test
11. Travel motor test
12. Test for the axle-locking valve
TESTING THE AIR-CONDITIONING UNIT
1. Testing the working temperature
2. Checking the unit
EMPTYING THE AIR-CONDITIONING UNIT

REMOVAL AND INSTALLATION
HOW TO READ THE MANUAL
PRECAUTIONS TO BE TAKEN WHILE WORKING
SPECIAL TOOLS
COUNTERWEIGHT
INJECTION PUMP
ENGINE HEAD
COMPLETE HYDRAULIC PUMP
SERVO-CONTROL PUMP
ENGINE - PUMPS
COMPLETE RADIATOR AND AIR CONDITIONING
CONDENSER
SWING MOTOR AND REDUCTION GEAR
SWING MOTOR
SWING REDUCTION GEAR
SWIVEL JOINT
CONTROL VALVE
HYDRAULIC OIL TANK
FUEL TANK
CABIN
REVOLVING FRAME
SWING CIRCLE
EQUIPMENT (1-piece boom version)
UPPER EQUIPMENT (2-piece boom version)
BOOM CYLINDER(For 1-piece boom)
BOOM CYLINDER (version with 2-piece boom)
2-PIECE BOOM CYLINDER
ARM CYLINDER
BUCKET CYLINDER
BOOM SWING CYLINDER
SWING SUPPORT
OUTRIGGERS/BLADE CYLINDERS
CYLINDERS

OTHER

HYDRAULIC CIRCUIT DIAGRAM
ELECTRICAL DIAGRAM

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