Komatsu WA320PT-5L Parallel Tool Carrier Service Manual
1,216 pages · Publication CEBM013602
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- Models
- WA320PT-5L
- Serial coverage
- A39001 and up
- Manual type
- Service Manual
- Pages
- 1,216
- Publication
- CEBM013602
- Condition
- Brand new
What's inside
From the manual's own table of contents: 5 sections, 198 entries. See sample pages (PDF, 654 KB)
FOREWORD5 topics
- GENERAL
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- TESTING, ADJUSTING AND TROUBLESHOOTING
- DISASSEMBLY AND ASSEMBLY
- OTHER
STRUCTURE AND FUNCTION72 topics
- Operation
- Forward-Reverse Shuttle Valve
- Function
- TRANSFER
- Outline
- Input Shaft
- Output Shaft
- Clutch Operation
- Low-Speed Mode
- High-Speed Mode
- CLUTCH SOLENOID VALVE
- DRIVE AXLES
- Front Axle
- Front Differential
- Rear Axle
- Rear Differential
- Torque Proportioning Differential
- LIMITED-SLIP DIFFERENTIALS
- Operation of Limited-Slip Differential
- Final Drive
- AXLE MOUNTING AND CENTER HINGE
- Center Hinge
- Axle Mount
- STEERING SYSTEM
- Steering Piping
- Steering Column
- Priority Valve
- Orbit-Roll Valve
- Structure
- Cushion Valve
- Steering Cylinder
- EMERGENCY STEERING
- Steering Valve
- BRAKING SYSTEM
- Brake Piping
- Brake Valve
- Inching Valve
- Charge Valve
- Braking System Accumulator
- Specifications
- Slack Adjuster
- Braking Unit
- PARKING BRAKE
- Control
- Parking Brake Unit
- WORK EQUIPMENT
- Hydraulic Piping Layout WA320-5L
- Hydraulic Piping Layout WA320PT-5L
- Control Lever Linkage
- WA320-5L 2-Lever Type
- WA320PT-5L 3-Lever Type
- Multi-Function Joystick Type (WA320-5L)
- BASIC HYDRAULIC SYSTEM
- Hydraulic Tank
- Vent
- 4-gear Pump Unit
- Accumulator PPC Circuit
- Lock Valve
- Bypass Valve
- System Operation
- Quick Coupler Solenoid Valve
- ECSS Accumulator
- HYDRAULIC COOLING SYSTEM
- Piping Layout
- Cooling Fan Motor
- Principle of Operation
- WORK EQUIPMENT CONTROL VALVE
- 2-Spool Valve
- 3-Spool Valve
- Relief Valve
- Safety-suction Valve
- Operation as Safety Valve
TESTING AND ADJUSTING23 topics
- BRAKE OIL PRESSURE
- MEASURING WEAR OF BRAKE DISC
- BLEEDING AIR FROM BRAKE CIRCUIT
- PARKING BRAKE PERFORMANCE
- PARKING BRAKE LINKAGE
- Testing
- Adjusting
- WORK EQUIPMENT CONTROL LEVER
- WORK EQUIPMENT PRESSURE
- Measuring
- WORK EQUIPMENT PPC OIL PRESSURE
- Testing and Adjusting
- Bleeding Air
- RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
- BUCKET POSITIONER
- BOOM KICK-OUT
- PROXIMITY SWITCH ACTUATION DISPLAY LAMP
- PROCEDURE FOR CHECKING DIODE
- SPECIAL FUNCTIONS OF MACHINE MONITOR
- FLOW OF MODES AND FUNCTIONS
- SETTING MACHINE MONITOR (EMMS)
- REAL-TIME MONITORING ITEMS
- PM CLINIC INSPECTION CHART
TROUBLESHOOTING45 topics
- Load Meter Specifications (If Equipped)
- With Ignition Switch On, Power Supply For Memory Is Off
- Defective 5-V Power Supply Output (KP)
- Defective 24-V Power Supply Output (KP)
- Controller Internal Failure
- HST Controller Communication Failure
- The Pre-heater Relay Coil Is Open Or Shorted
- HST Safety (Transmission Cut-off) Relay Open Or Shorted (KB)
- Defective Subtotal Switch
- Monitor Panel Mode Selector Switch Will Not Set
- Improper Input For Multiple Shift (FNR) Lever
- Decreased Steering Oil Pressure
- Defective Cancel Switch
- Engine Coolant Temperature Sensor Out Of Range
- HST Oil Showing Overheating Condition
- Axle Oil Indicating Short Circuit
- Brake Cooling Oil Indicating Open Circuit
- Engine Oil Pressure Indicating A Short Or Open In The System
- Possible Defective Bottom Pressure Sensor
- Possible Defective Rod Pressure Sensor
- Possible Defective Boom Angle Sensor
- Possible Short Or Open In Alarm Buzzer
- Parking Brake Indicator Lamp Does Not Work
- Brake Oil Pressure Not Indicating Correctly
- Engine Coolant Sensor Not Indicating Correctly
- HST Oil Temperature Not Indicating Correctly
- Fuel Level Gauge Does Not Indicate Properly
- Abnormal Coolant Level Indication
- Steering Oil Pressure Not Reading Correctly
- Emergency Steering Oil Pressure Not Reading Correctly
- Monitor Panel Mode Selector Switch Will Not Set Correctly
- Alarm Buzzer Does Not Stop Or Remains ON
- Abnormal Engine Oil Level Indication
- Clogged Air Cleaner Indicated
- Front Windshield Wiper Does Not Work
- Rear Windshield Wiper Does Not Work
- Headlamps (Lo And High Beam) Does Not Function
- DEFECTIVE COOLING (MECHANICAL)
- DEFECTIVE HEATING (MECHANICAL)
- ABNORMAL NOISE IS HEARD FROM SYSTEM (MECHANICAL)
- WATER LEAKS FROM SYSTEM (MECHANICAL)
- The Bucket Wobbles During Travel With Cargo (The Work Equipment Valve Is Set To “Hold”)
- When The Control Lever Is Switched From “Hold” To “Tilt,” The Bucket Falls Temporarily
- Control Levers For The Lift Arm And Bucket Do Not Move Smoothly
- Travel Damper Does Not Operate And Machine Pitches And Bounces
DISASSEMBLY AND ASSEMBLY48 topics
- Assembly Procedures
- FRONT AXLE ASSEMBLY
- Removal Procedures
- Installation Procedures
- REAR AXLE ASSEMBLY
- FRONT AND REAR AXLE HOUSING OVERHAUL PROCEDURES
- Special Tools
- Disassembly Procedures
- DIFFERENTIAL CARRIER OVERHAUL PROCEDURES
- Dissembly Procedures
- DISASSEMBLY OF STANDARD 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 CONTROL VALVE ASSEMBLY
- TRAVEL DAMPER VALVE ASSEMBLY
- HYDRAULIC TANK ASSEMBLY
- HST PUMP OVERHAUL PROCEDURES
- Special Tools List
- HST MOTOR OVERHAUL PROCEDURES
- CYLINDERS
- Bucket (Tilt) Cylinder
- Removal
- Installation
- Boom (Lift) Cylinder
- CYLINDER OVERHAUL PROCEDURES
- WORK EQUIPMENT ASSEMBLY
- Installation Procedure
- Procedure For Installing Bucket Link Pin
- Procedure For Installing Bucket Hinge Pin
- Procedure For Installing Bucket Cylinder Pin (On Rod Side)
- Procedure For Installing Boom Cylinder Pin (On Rod Side)
- Procedure For Installing Boom Pin (On Frame Side)
- Procedure For Installing Bell Crank Center Pin
- OPERATOR'S CAB ASSEMBLY
- OPERATOR'S CAB GLASS
- Coating Materials
- CENTER HINGE PIN
- REAR COUNTERWEIGHT
- AIR CONDITIONER UNIT
- Load Meter Specification
- REFRIGERENT COMPRESSOR ASSEMBLY
- MONITOR PANEL
- HST CONTROLLER
- KOMTRAX TERMINAL ASSEMBLY
Inside this manual
Real pages from this service manual (1,216 pages). Open the sample pages (PDF, 653 KB)
- Specifications, page 411: TESTING AND ADJUSTING
- Troubleshooting, page 519: POINTS TO REMEMBER WHEN TROUBLESHOOTING
- Diagram, page 753: INFORMATION CONTAINED IN TESTING PROCEDURES
- Foldout diagram, page 1,203: OTHERS
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the WA320PT-5L are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
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, 1,216 pages
Quantity one is the manual described above.
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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.
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).