Komatsu WB146-5 Backhoe Loader (A23001-up) Shop Manual - CEBM016501

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This complete service repair workshop manual PDF download for the Komatsu WB146-5 Backhoe Loader (SN: A23001 and up) has easy to read text sections with top quality diagrams, pictures and illustrations. The step by step instructions show you how to fault find or complete any repair or overhaul, correctly and efficiently, saving time and avoiding costly mistakes. All specifications and tolerances are listed. Functions of components and systems are also explained.


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
Product Code : CEBM016501
Total Pages : 200


APPLICABLE MODELS :

Komatsu WB146-5
Serial Numbers : A23001 and up


TABLE OF CONTENTS :

SAFETY
SAFETY NOTICE
GENERAL PRECAUTIONS
PREPARATIONS FOR WORK
PRECAUTIONS DURING WORK
GENERAL
HOW TO READ THE SHOP MANUAL
VOLUMES
DISTRIBUTION AND UPDATING
FILING METHOD
REVISED EDITION MARK
REVISIONS
SYMBOLS
HOISTING INSTRUCTIONS
HOISTING
WIRE ROPES
QUICK DISCONNECT COUPLER
TYPE 1
DISCONNECTION
CONNECTION
TYPE 2
DISCONNECTION
CONNECTION
TYPE 3
DISCONNECTION
CONNECTION
COATING MATERIALS
STANDARD TIGHTENING TORQUE
STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS
TIGHTENING TORQUE OF HOSE NUTS
TIGHTENING TORQUE OF SPLIT FLANGE BOLTS
TIGHTENING TORQUE FOR FLARED NUTS
TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PIPING JOINTS
TABLE OF TIGHTENING TORQUES FOR O-RING BOSS PLUGS
TIGHTENING TORQUE TABLE FOR HOSES (TAPER SEAL TYPE AND FACE SEAL TYPE)
ELECTRIC WIRE CODE
CLASSIFICATION BY THICKNESS
CLASSIFICATION BY COLOR AND CODE
CONVERSION TABLES
METHOD OF USING THE CONVERSION TABLE

01 GENERAL
SPECIFICATIONS
WEIGHT TABLE
FUEL COOLANT AND

10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
POWER TRAIN
DESCRIPTION
POWER FLOW
TRANSMISSION DIAGRAM
TRANSMISSION
COMPLETE ASSEMBLY
FORWARD REVERSE CLUTCH
1ST THROUGH 4TH SPEED SHAFT
4WD SHAFT
FRONT AXLE
COMPLETE ASSEMBLY
DIFFERENTIAL
PLANETARY
REAR AXLE
COMPLETE ASSEMBLY
DIFFERENTIAL
PLANETARY
WORK BRAKES
DIFFERENTIAL LOCK
HYDRAULIC PUMP
MAIN PUMP
FUNCTION
STRUCTURE
OPERATION
DELIVERY CONTROL VALVE
LS VALVE FUNCTION
PC VALVE FUNCTION
PC VALVE OPERATION
MAIN CONTROL VALVE
CLSS
DESCRIPTION
CHARACTERISTICS
STRUCTURE
OPERATING PRINCIPLES
PUMPING PLATE CONTROL ANGLE
PRESSURE COMPENSATION CONTROL
MAIN CONTROL VALVE
UNLOADING VALVE
LS PRESSURE
LS BY PASS PLUG
PRESSURE COMPENSATION VALVES
PRESSURE COMPENSATION VALVE
PRIORITY VALVE
PPC REDUCING VALVE
STEERING UNIT
TECHNICAL DATA
OPERATION
PPC VALVE
LOADER
OPERATION
OUTRIGGER
OPERATION
BACKHOE
LEFT VALVE
RIGHT VALVE
SOLENOID VALVE
HYDRAULIC CONTROLS W/O MP BUCKET
HYDRAULIC CONTROLS WITH MP BUCKET
LOADER CYLINDERS
BOOM
CHARACTERISTICS
BUCKET
CHARACTERISTICS
MP BUCKET
CHARACTERISTICS
BACKHOE CYLINDERS
BOOM
CHARACTERISTICS
ARM
CHARACTERISTICS
BUCKET
CHARACTERISTICS
TELESCOPIC ARM CYLINDER
CHARACTERISTICS
SWING
CHARACTERISTICS
OUTRIGGER
CHARACTERISTICS
WORK EQUIPMENT
LOADER
BACKHOE
AIR CONDITIONING

20 TESTING, ADJUSTING AND TROUBLESHOOTING
STANDARD VALUE TABLE
ENGINE
CHASSIS
SPECIAL TOOLS
ENGINE SPEED
ENGINE WITHOUT LOAD
MACHINE IN POWER MODE AT MIN
WITH CONVERTER STALLED
CONVERTER STALLED AND HYDRAULIC PUMP UNDER LOAD
ANALYSIS
VALVE CLEARANCE
AC COMPRESSOR BELT TENSION
BLEED AIR FROM CIRCUITS
BLEED AIR FROM CYLINDERS
BLEED AIR FROM BRAKING CIRCUIT
RELEASING RESIDUAL PRESSURE
ACCELERATOR PEDAL AND LEVER
ACCELERATOR PEDAL TRAVEL
ACCELERATOR LEVER TRAVEL
BRAKE SYSTEM
CONTROL
ADJUSTMENT
CHECKS
LEAKAGE CHECKS
INDIVIDUAL PUMP CHECK
BRAKE GROUP LEAKAGE
PARKING BRAKE ADJUSTMENT
HYDRAULIC CIRCUIT
INTRODUCTION
INTRODUCTION
MAIN CONTROL VALVE
RELIEF VALVES
TESTING
UNLOADING VALVE
MAIN RELIEF VALVE
SECONDARY VALVES
SETTING RELIEF VALVES
MAIN RELIEF VALVE
CIRCUIT RELIEF VALVES
ARM IN, LOADER CURL, BACKHOE BUCKET CURL, BOOM RAISE, AND MP BUCKET
SWING, LOADER DUMP, HAMMER, AND BOOM RAISE
LS DIFFERENTIAL PRESSURE
CONTROL
ADJUSTMENT
PPC SUPPLY PRESSURE
CHECK
ADJUSTMENT
PC VALVE
ADJUSTMENT
STEERING CONTROL SYSTEM
CONTROL
SETTING
STEERING CYLINDER
POWER TRAIN GROUP
CONVERTER OIL PRESSURE
CLUTCH ENGAGEMENT PRESSURE
SUPPLY PRESSURE
TRANSMISSION CLUTCH FUNCTION
MACHINE PREPARATION
CONTROL
HYDRAULIC DRIFT
LOADER
BOOM CIRCUIT
BUCKET CIRCUIT
BACKHOE
BOOM CIRCUIT
ARM CIRCUIT
BUCKET CIRCUIT
OUTRIGGERS CIRCUT - W/O LOCK VALVESI
AIR CONDITIONING
WORK TEMPERATURE
UNIT CHECK
EMPTYING THE AC UNIT
TROUBLESHOOTING GUIDE
FRONT AXLE
REAR AXLE
TRANSMISSION

90 OTHER
HYDRAULIC CIRCUIT
1 OF 4
2 OF 4
3 OF 4
4 OF 4
ELECTRICAL SCHEMATIC
WIRING - 1 OF 7
WIRING - 2 OF 7
WIRING - 3 OF 7
WIRING - 4 OF 7
WIRING - 5 OF 7
WIRING - 6 OF 7
WIRING - 7 OF 7
LEGEND FOR WIRING SCHEMATIC
FUSE AND RELAY PANEL


This service repair workshop manual PDF download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having completly searcheble PDF files instead of a hard-printed manual is that you can use the Search feature in your PDF reader software (Adobe Acrobat) to find just what your looking for and just print out the exact pages you need or all manual easily. This is the same Repair Service manual your local dealer will use when doing a repair.

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