Komatsu Galeo WA320-5L Wheel Loader Service Manual

Name: Komatsu Galeo WA320-5L Wheel Loader Service Manual
Brand: MidWestTech
SKU: CEBM012004
Price: 109.55 USD
Availability: InStock

1,034 pages · Publication CEBM012004

$109.55

Fast free USA shippingShips in 1 business daySave 10% on 2 manuals, 15% on 3 or morePay by credit or debit card or with PayPal. No PayPal account needed.

Models: Galeo WA320-5L
Serial coverage: A32001 and up
Manual type: Service Manual
Pages: 1,034
Publication: CEBM012004
Condition: Brand new

Komatsu Galeo WA320-5L Wheel Loader Service Manual, publication CEBM012004

What's inside

From the manual's own table of contents: 5 sections, 340 entries. See sample pages (PDF, 675 KB)

Search the contents

FOREWORD5 topics

GENERAL
STRUCTURE AND FUNCTION
TESTING, ADJUSTING AND TROUBLESHOOTING
DISASSEMBLY AND ASSEMBLY
OTHER

STRUCTURE AND FUNCTION189 topics

EP SERVO VALVE
FUNCTION
VALVE OPERATION
HA SERVO VALVE
FORWARD-REVERSE SHUTTLE VALVE
SHUTTLE VALVE OPERATION
TRANSFER SYSTEM
INTERNAL VIEW OF TRANSFER
INPUT SHAFT SPECIFICATIONS
OUTPUT SHAFT SPECIFICATIONS
SPECIFICATIONS
CLUTCH OPERATION
WHEN “ON
WHEN “OFF
LOW SPEED MODE
MODE OPERATION
HIGH SPEED MODE
CLUTCH SOLENOID VALVE
SOLENOID VALVE OPERATION
AXLES
FRONT AXLE
REAR AXLE
STANDARD DIFFERENTIALS
FRONT DIFFERENTIAL
REAR DIFFERENTIAL
DIFFERENTIAL FUNCTION
DIFFERENTIAL OPERATION
TORQUE PROPORTIONING
LIMITED-SLIP DIFFERENTIAL
LIMITED-SLIP OPERATION
FINAL DRIVE
FINAL DRIVE OUTLINE
AXLE MOUNTING AND CENTER HINGE PIN
AXLE MOUNTING
AXLE MOUNTING OUTLINE
CENTER HINGE PIN ASSEMBLY
STEERING PIPING
STEERING COLUMN
PRIORITY VALVE
PRIORITY VALVE OUTLINE
ORBIT-ROLL VALVE
ORBITAL-ROLL VALVE OPERATION
STRUCTURE
STEERING WHEEL IN NEUTRAL POSITION
STEERING WHEEL TURNING LEFT
STEERING WHEEL STOPPED
CONNECTION BETWEEN HAND PUMP AND SLEEVE
ROLE OF CENTERING SPRING
CUSHION VALVE
CUSHION VALVE OPERATION
CYLINDER LAY-OUT AND STEERING CYLINDER
STEERING CYLINDER
EMERGENCY STEERING PIPING
EMERGENCY STEERING VALVE
STEERING SYSTEM DURING NORMAL OPERATION
STEERING SYSTEM WHEN FAILURE OCCURS
BRAKE PIPING
BRAKE VALVE ASSEMBLY
VALVE ASSEMBLY OUTLINE
WHEN BRAKE PEDAL IS PRESSED
WHEN BRAKE IS BALANCED
WHEN BRAKE IS RELEASED
INCHING VALVE FUNCTION
INCHING VALVE OUTLINE
CHARGE VALVE ASSEMBLY
FUNCTION OF CHARGE VALVE
ACCUMULATOR (BRAKE SYSTEM)
ACCUMULATOR FUNCTION
SLACK ADJUSTER
SLACK ADJUSTER FUNCTION
BRAKE
BRAKE OUTLINE
PARKING BRAKE CONTROL
BRAKE SYSTEM OUTLINE
PARKING BRAKE UNIT
PARKING BRAKE OUTLINE
HYDRAULIC PIPING
PIPING OUTLINE
WORK EQUIPMENT CONTROL LINKAGE
MULTI FUNCTION MONO LEVER
HYDRAULIC TANK
SYSTEM SPECIFICATIONS
BREATHER
4-GEAR PUMP UNIT
PUMP OUTLINE
ACCUMULATOR (PPC CIRCUIT)
ACCUMULATOR OUTLINE
LOCK VALVE
LOCK VALVE OUTLINE
TRAVEL DAMPER VALVE
ACCUMULATOR (TRAVEL DAMPER)
HYDRAULIC PIPING FOR COOLING SYSTEM
COOLING FAN MOTOR
FAN MOTOR SPECIFICATIONS
MOTOR FUNCTION
PRINCIPLE OF OPERATION
WORK EQUIPMENT CONTROL VALVE
2-SPOOL VALVE
3-SPOOL VALVE
3-RELIEF VALVE
VALVE FUNCTION
4-RELIEF VALVE
SUCTION VALVE
CUT-OFF VALVE
WORK EQUIPMENT CONTROL VALVE OPERATION
WORK EQUIPMENT PPC VALVE
2-LEVER TYPE
PPC VALVE OPERATION
WHEN BUCKET IS IN NEUTRAL
FINE CONTROL MODE (NEUTRAL ¤ FINE)
(FINE ¤ NEUTRAL)
LEVER IS MOVED TO END OF STRTOKE
LEVER IS IN “FLOAT
MONO-LEVER TYPE
MONO-LEVER OPERATION
IN NEUTRAL POSITION
LEVER IS MOVED TO END OF STROKE
ATTACHMENT PPC VALVE
AT FULL STROKE
WORK EQUIPMENT LINKAGE
BUCKET
BUCKET POSITIONER AND BOOM KICK-OUT
POSITIONER SYSTEM OUTLINE
BUCKET POSITIONER
BOOM KICK-OUT
PROXIMITY SWITCH OPERATION
FUNCTION OF PROXIMITY SWITCH
WORK EQUIPMENT CYLINDER
LIFT CYLINDER
BUCKET CYLINDER
AIR CONDITIONER SYSTEM
AIR CONDITIONER PIPING
MACHINE MONITORING SYSTEM
SYSTEM OUTLINE AND CIRCUIT DIAGRAMS
MACHINE MONITOR (Starting And Lighting)
POWER SUPPLY NETWORK
MACHINE MONITOR (STANDARD)
MACHINE MONITOR (OPTIONAL LOAD METER)
ITEMS DISPLAYED ON MONITOR
MONITOR MODE FUNCTIONS
ELECTRICAL SYSTEM FAILURE HISTORY
MACHINE SYSTEM FAILURE HISTORY
REAL-TIME MONITOR
SPEED METER SPECIFICATIONS
ITEMS RELATED TO THE FAULT HISTORY OF ELECTRICAL SYSTEM
ITEMS RELATED TO THE FAULT HISTORY OF MACHINE SYSTEM
REAL-TIME MONITOR FUNCTION
SPEED METER SPECIFICATION
LOAD METER SPECIFICATION
TUNING FUNCTION
LOAD METER SPECIFICATIONS
MAINTENANCE FUNCTION
HOW TO INPUT INTERVAL
FUNCTION OF SELECTING OPTIONAL DEVICE
SPEED METER
SELECTION OF TIRE
LOAD METER
SETTING MACHINE SERIAL NUMBER
LOAD METER FUNCTION
INPUT/OUTPUT SIGNAL
ELECTRICAL SYSTEM (HST CONTROLLER)
CONTROL FUNCTION
HST CONTROLLER
FORWARD-REVERSE SELECTOR SWITCH (IF EQUIPPED)
SYSTEM OUTLINE
ENGINE START CIRCUIT
CIRCUIT OPERATION
ENGINE STOP CIRCUIT
AUTOMATIC PREHEAT SYSTEM CIRCUIT
PREHEAT OPERATION
PARKING BRAKE CIRCUIT
PARKING BRAKE OPERATION
ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM
SYSTEM FUNCTION
SENSORS
ENGINE SPEED SENSOR
TRAVEL SPEED SENSOR
ENGINE OIL PRESSURE SENSOR
FUEL LEVEL SENSOR
ENGINE COOLANT AND HST OIL TEMPERATURE SENSOR
PREHEATING COOLANT TEMPERATURE SENSOR
AXLE OIL TEMPERATURE SENSOR
HST OIL PRESSURE SENSOR (LOAD METER)
EMERGENCY STEERING OIL PRESSURE SENSOR (IF EQUIPPED)
HST FILTER CLOG SENSOR
COOLANT LEVEL SENSOR
ENGINE OIL LEVEL SENSOR
AIR CLEANER CLOG SENSOR
LIFT ARM ANGLE SENSOR (IF EQUIPPED)

TESTING AND ADJUSTING18 topics

ACCUMULATOR CHARGE PRESSURE
BRAKE OIL PRESSURE
MEASURING WEAR OF BRAKE DISC
BLEEDING AIR FROM BRAKE CIRCUIT
PARKING BRAKE PERFORMANCE
PARKING BRAKE LINKAGE
WORK EQUIPMENT CONTROL LEVER
WORK EQUIPMENT PRESSURE
WORK EQUIPMENT PPC OIL PRESSURE
TESTING AND ADJUSTING
BLEEDING AIR
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
PROXIMITY SWITCH ACTUATION DISPLAY LAMP
PROCEDURE FOR CHECKING DIODE
SPECIAL FUNCTIONS OF MACHINE MONITOR
FLOW OF MODES AND FUNCTIONS
REAL-TIME MONITORING ITEMS
PM CLINIC INSPECTION CHART

TROUBLESHOOTING87 topics

WITH IGNITION SWITCH ON, POWER SUPPLY FOR MEMORY IS OFF
ERROR CODE: [DAF5KP]
DEFECTIVE 5-V POWER SUPPLY OUTPUT (KP)
ERROR CODE: [DAF6KP]
DEFECTIVE 24-V POWER SUPPLY OUTPUT (KP)
ERROR CODE: [DAF0KT]
CONTROLLER INTERNAL FAILURE)
ERROR CODE: [DAJ0KR]
HST CONTROLLER COMMUNICATION FAILURE
ERROR CODE [D182KZ]
THE PREHEATER RELAY COIL IS OPEN OR SHORTED
ERROR CODE [D1B0KB]
ERROR CODE: [DD1CLD]
DEFECTIVE SUBTOTAL SWITCH
ERROR CODE: [DD15LD]
MONITOR PANEL MODE SELECTOR SWITCH WILL NOT SET
ERROR CODE: [DD16LD]
ERROR CODE: [DD17LD]
ERROR CODE: [DD18LD]
ERROR CODE: [DDK3KB]
IMPROPER INPUT FOR MULTIPLE SHIFT (FNR) LEVER (STANDARD)
IMPROPER INPUT FOR MULTIPLE SHIFT (FNR) LEVER (LOAD METER)
ERROR CODE: [DDS5L6]
DECREASED STEERING OIL PRESSURE
ERROR CODE: [DDY0LD]
DEFECTIVE CANCEL SWITCH
ERROR CODE: [DGE2KX]
ENGINE COOLANT TEMPERATURE SENSOR OUT OF RANGE
ERROR CODE: [DGE3L6]
ERROR CODE: [DGH1KX]
HST OIL SHOWING OVERHEATING CONDITION
ERROR CODE: [DGR4KA]
AXLE OIL INDICATING SHORT CIRCUIT
ERROR CODE: [DGR4KX]
BRAKE COOLING OIL INDICATING OPEN CIRCUIT
ERROR CODE: [DHE4L6]
ERROR CODE: [DHPCKX]
POSSIBLE DEFECTIVE BOTTOM PRESSURE SENSOR
ERROR CODE: [DHPDKX]
POSSIBLE DEFECTIVE ROD PRESSURE SENSOR
ERROR CODE: [DKA0KX]
POSSIBLE DEFECTIVE BOOM ANGLE SENSOR
ERROR CODE: [DV00KB]
POSSIBLE SHORT OR OPEN IN ALARM BUZZER
TROUBLESHOOTING CODE: [MON-1]
PARKING BRAKE INDICATOR LAMP DOES NOT WORK
TROUBLESHOOTING CODE: [MON-2]
BRAKE OIL PRESSURE NOT INDICATING CORRECTLY
TROUBLESHOOTING CODE: [MON-3]
ENGINE COOLANT SENSOR NOT INDICATING CORRECTLY
TROUBLESHOOTING CODE: [MON-4]
HST OIL TEMPERATURE NOT INDICATING CORRECTLY
TROUBLESHOOTING CODE: [MON-5]
FUEL LEVEL GAUGE DOES NOT INDICATE PROPERLY
TROUBLESHOOTING CODE: [MON-6]
ABNORMAL COOLANT LEVEL INDICATION
TROUBLESHOOTING CODE: [MON-7]
STEERING OIL PRESSURE NOT READING CORRECTLY
TROUBLESHOOTING CODE: [MON-8]
EMERGENCY STEERING OIL PRESSURE NOT READING CORRECTLY
TROUBLESHOOTING CODE: [MON-9]
TROUBLESHOOTING CODE: [MON-10]
TROUBLESHOOTING CODE: [MON-11]
TROUBLESHOOTING CODE: [MON-12]
TROUBLESHOOTING CODE: [MON-13]
ALARM BUZZER DOES NOT STOP OR REMAINS ON
TROUBLESHOOTING CODE: [MON-14]
ABNORMAL ENGINE OIL LEVEL INDICATION
TROUBLESHOOTING CODE: [MON-15]
CLOGGED AIR CLEANER INDICATED (STANDARD)
CLOGGED AIR CLEANER INDICATED (LOAD METER)
TROUBLESHOOTING CODE: [MON-16]
TROUBLESHOOTING CODE: [MON-17]
TROUBLESHOOTING CODE: [MON-18]
TROUBLESHOOTING CODE: [MON-19]
TROUBLESHOOTING CODE: [MON-20]
FRONT WINDSHIELD WIPER DOES NOT WORK
REAR WINDSHIELD WIPER DOES NOT WORK
TROUBLESHOOTING CODE: [MON-21]
HEADLAMPS (LO AND HIGH BEAM) DOES NOT FUNCTION
THE BUCKET DOES NOT TILT BACK
THE BUCKET OPERATES SLOWLY IN TILTING-BACK
BUCKET CYLINDER CANNOT HOLD DOWN THE BUCKET
HYDRAULIC DRIFTS OF THE BUCKET OCCURS OFTEN
EQUIPMENT VALVE IS SET TO “HOLD”)
THE BUCKET FALLS TEMPORARILY
SMOOTHLY

DISASSEMBLY AND ASSEMBLY36 topics

DISASSEMBLY PROCEDURES
ASSEMBLY PROCEDURES
FRONT AXLE ASSEMBLY
REMOVAL PROCEDURES
INSTALLATION PROCEDURES
REAR AXLE ASSEMBLY
FRONT AND REAR AXLE HOUSING
SPECIAL TOOLS
DIFFERENTIAL CARRIER
DISSEMBLY PROCEDURES
Disassembly Of Standard Differential Carrier
Disassembly Of Anti-slip Differential
ASSEMBLY OF ANTI-SLIP DIFFERENTIAL
ASSEMBLY OF STANDARD DIFFERENTIAL CARRIER
HST AND 4-GEAR PUMP ASSEMBLY
HST MOTOR 1 ASSEMBLY
HST MOTOR 2 ASSEMBLY
WORK EQUIPMENT
BUCKET LINK PIN
BUCKET HINGE PIN
BUCKET CYLINDER PIN (ON ROD SIDE)
BOOM CYLINDER PIN (ON ROD SIDE)
BOOM PIN (ON FRAME SIDE)
BELL CRANK CENTER PIN
HST PUMP
SPECIAL TOOLS LIST
HST MOTOR
HYDRAULIC CYLINDER
OPERATOR'S CAB ASSEMBLY
OPERATOR'S CAB GLASS
COATING MATERIALS
CENTER HINGE PIN
REAR COUNTERWEIGHT
AIR CONDITIONER UNIT
REFRIGERENT COMPRESSOR ASSEMBLY
MONITOR PANEL

Inside this manual

Real pages from this service manual (1,034 pages). Open the sample pages (PDF, 674 KB)

Sample pages from the Komatsu Galeo WA320-5L Wheel Loader Service Manual: Diagram, Troubleshooting, Specifications, Foldout diagram

Diagram, page 644: CODE: (E-4)
Troubleshooting, page 734: METHOD OF USING TROUBLESHOOTING CHARTS
Specifications, page 974: OPERATOR'S CAB GLASS
Foldout diagram, page 1,020: OTHERS

This is a service manual

Here's how it compares to the other manual types.

This manual

Service manual

Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.

Operator's manual

Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.

Parts manual

Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

What it's used for

Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.

Service shops and owner/operators who repair their own equipment

Identifying correct parts and seeing how assemblies come apart and go back together

Keeping equipment running with less downtime

Factory manual, 1,034 pages

Quantity one is the manual described above.

Fast free USA shipping

Ships in 1 business day.

60-day returns

Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy

Binder not included

Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.

Other editions and similar models

Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).