Kubota KX080-3 Construction Equipment Manuals

Kubota KX080-3 Construction Equipment Manuals

Manuals and User Guides for Kubota KX080-3 Construction Equipment. We have 2 Kubota KX080-3 Construction Equipment manuals available for free PDF download: Workshop Manual, Operator's Manual

Kubota KX080-3 Workshop Manual

Kubota KX080-3 Workshop Manual (759 pages)

Brand: Kubota | Category: Excavators | Size: 29.13 MB

Table of Contents

Table of Contents
3
General Information
5
Body and Engine Identification Marks
7
- Safety Precautions for Servicing, Disassembly and Reassembly
  8
- Precautions for Disassembly and Reassembly
  9
- Preparation for Disassembly
  9
- Essential Adhesives
  10
- Important Inspection Items after Reassembling
  10
- Important Safety Process and Critical Functional Process
  10
- Items for Servicing
  11
- Servicing Fundamentals
  11
  - O-Ring, Oil Seal, Circlip and Roll Pin
    13
  - Hydraulic Hose
    15
  - Piping
    15
  - Precautions in Tightening the Bolts and Nuts
    15
  - Hose Screw
    16
  - Joint Bodies
    16
  - Metric Size Hose
    16
  - Hose Clamp (Screw-In Type) Tightening Torque Chart
    17
  - Nuts for Piping
    17
  - Tightening Torque of Bolts and Nuts
    18
  - Types and Materials of Bolts and Nuts
    18
  - Washer-Equipped Elbow - Tightening Torque
    19
  - Connecting the Face Sealing (ORS) Type Hose
    20
  - Face Sealing (ORS) Type
    20
  - Hose Tightening Torque Chart
    21
- Maintenance Intervals
  22
- Machine Body
  29
- Mechanism Section
  29
- Feature, Quick Chart
  31
- New Product Feature
  31
- Feature Points
  32
  - Kubota Original Engine
    32
  - Performance
    32
  - Working Range and Stability
    32
  - Digging Force
    33
  - Lifting Capacity
    33
  - Auto Idling System
    34
  - Load Sensing System
    34
  - Saving Cost for Fuel
    34
  - Functional Image Chart
    35
  - Max. Hydraulic Flow Adjustor Auxiliary Circuit (SP1)
    35
  - Durability and Service Ability
    36
  - Fuel Refilling Pump
    36
  - Rubber Crawler
    36
  - ROPS/FOPS Cabin
    37
  - Safety
    37
  - Triple Opening Bonnet
    37
  - Anti-Fall Valve (Holding Valve)
    38
  - Anti-Theft System
    38
  - Maintenence Components Layout
    39
- Rubber Track Vs Iron Track
  41
- Greasing Intervals
  42
  - FYI (for Your Information)
    44
  - High-Strength Brass Castings (JIS H5102-1979)
    44
  - Machine Body - Service Section
    45
  - Machine Weight
    47
  - Specifications
    47
  - Major Specifications
    48
  - Lever Stroke and Operating Force
    49
  - Dimensions of Parts
    50
  - Front Pins Dimensions
    50
  - Bucket Dimensions
    51
  - Bucket Installation Relevant Dimensions
    52
  - Rubber Crawler Dimensions
    53
  - Steel Crawler Dimensions
    53
  - Track Roller, Idler, Sprocket Dimensions
    54
  - Blade Dimensions
    55
  - Parts Weight
    56
  - Quality Specification
    58
  - Front Attachment Removing
    66
- Removing and Reassembling
  66
  - Grease Nipple Set up
    69
  - Grease Nipple Setup Direction
    69
  - Greasing Quantity
    69
  - Bushing Setup Direction
    71
  - Dust Seal Fitting Direction
    71
  - Fitting the Bushings
    71
  - Pin and Bushing Installation
    71
  - Clearance at the Front
    73
  - Fitting the Thrust Collars
    73
  - Shim Installation
    73
  - Vertical Clearance between Swivel Frame and Swing Bracket
    73
  - Fitting the Control Lever
    75
  - Fitting the Grommets
    76
  - Adjusting the Lever Neutral Position
    77
  - Adjusting the Travel Levers
    77
  - Tightening Torque for the Pilot Valve
    77
- Travel Levers
  77
  - Adjusting the Dozer Lever Neutral Position
    78
  - Checking the Setup Condition
    78
  - Dozer Lever
    78
  - Tightening Torque of Bracket (Dozer Pilot Valve)
    78
  - Anti-Vibration Rubber (Cab)
    79
  - Cab
    79
  - Bonnet
    80
  - Sound Absorber and Insulator
    85
  - Attaching the Weight
    92
  - Counterweigt
    92
  - Fitting the Stay (Hook Lock), Cover (Weight) and Bracket (Left Cover)
    92
  - Attaching the Additional Weight
    93
- Clearance of Cover
  94
- M.labels
  95
  - Fitting the Bearing (Swivel)
    105
  - Greasing the Tooth Surface
    105
  - Swivel Bearing
    105
  - Swivel Bearing Mounting Bolt
    105
  - Undercarriage
    106
  - Upper Roller
    106
  - Track Roller
    107
  - Front Idler
    108
  - Adjusting the Crawler Tension
    109
  - Fitting to the Track Frame
    109
  - Spring Preset Length
    109
  - Track Adjustment
    109
  - Swivel Frame and Track Frame
    110
  - Engine - Mechanism Section
    111
  - Engine Specifications
    113
  - Engine Electric Components
    114
  - Performance Curve
    115
  - Different Installation from V3800 Basic Model
    117
  - Oil Filter
    117
  - Starter Moter
    117
  - Engine - Service Section
    119
- Troubleshooting
  121
  - Servicing Specifications
    122
  - Disassemble and Reassemble
    123
  - Pump Coupling
    123
  - When Reassembling
    124
- B.radiator
  125
  - Radiator Overall View
    125
  - Air Cleaner - Overall View, Engine Room
    128
  - Air Cleaner Assy View
    128
- C.air Cleaner
  128
  - Double Elements View
    128
  - Inlet Hoses View
    128
  - Laying the Hose (1, Inlet)
    129
- D.muffler
  130
- Fuel Hose
  135
- Fan Belt
  141
  - Fan Belt Tension
    141
  - Fitting the Oil Switch
    141
  - Fitting the Plate
    141
  - Fitting the Engine Stop Lever
    142
  - Fitting the Plate (Bus Bar)
    142
  - Fitting the Sensor (Rpm)
    142
- J .Engine Stop Lever
  142
- Engine Bracket Overall View
  143
- K.engine Bracket
  143
  - Fitting the Anti-Vibration Rubber
    144
  - Fitting the Engine Bracket
    144
- L .Engine Assy
  145
- Engine WSM
  147
- Engine Identification
  150
- Model Name and Engine Serial Number
  150
- Cylinder Number
  151
- General Precautions
  152
  - Engine Maintenance Check List
    153
  - Lubricating Oil
    154
  - Checking Engine Oil Level
    155
- Daily Check Points
  155
  - Engine Check and Maintenance
    155
  - Checking and Replenish Coolant
    156
  - Changing Engine Oil
    157
- Check Points of Initial 50 Hours
  157
  - Engine: Fan Belt Tension
    157
  - Replacing Oil Filter Cartridge
    157
  - Check Points of Every 50 Hours
    158
  - Checking Fuel Hose and Clamp Bands
    158
- Check Points of Every 250 Hours
  159
  - Cleaning Air Cleaner Element
    159
  - Fan Belt Tension, Damage and Wear
    159
  - Checking Battery Electrolyte Level
    160
  - Checking Intake Air Line
    160
  - Checking Radiator Hoses and Clamp Bands
    160
  - Cleaning Fuel Filter (Element Type Only)
    160
  - Change Engine Oil
    161
  - Engine: Check Points of Every 500 Hours
    161
  - Replace Oil Filter Cartridge
    161
  - Replacing Fuel Filter Cartridge (Cartridge Type)
    161
  - Cleaning Water Jacket and Radiator Interior
    162
  - Replacing Fan Belt
    162
  - Anti-Freeze
    163
- Check Point of Every 1000 Hours
  164
  - Checking Valve Clearance
    164
  - Check Point of Every 1 or 2 Months
    165
  - Recharging
    165
  - Battery Specific Gravity
    166
- Check Points of Every 1500 Hours
  167
  - Checking Nozzle Injection Pressure
    167
  - Nozzle Spraying Condition
    167
  - Valve Seat Tightness
    167
- Check Points of Every 3000 Hours
  168
  - Checking Turbocharger
    168
  - Injection Timing
    169
  - Checking Injection Pump
    170
- Check Points of Every 1 Year
  171
  - Engine Oil Change
    171
  - Replacing Air Cleaner Element
    171
  - Changing Radiator Coolant (L.L.C.)
    172
- Check Points of Every 2 Years
  172
  - Fan Belt Replacement
    172
  - Replacing Radiator Hoses and Clamp Bands
    173
  - Replacing Battery
    174
  - Replacing Fuel Hose and Clamp Bands
    174
  - Replacing Intake Air Line
    174
  - Diesel Engine Compression Tester
    175
  - Oil Pressure Tester
    175
  - Special Tools
    175
  - Injection Pump Pressure Tester
    176
  - Idle Gear Bushing Replacing Tool
    177
  - Small End Bushing Replacing Tool
    177
  - Gear Case Oil Seal Replacing Tool
    178
  - Valve Guide Replacing Tool
    178
  - Auxiliary Socket for Fixing Crankshaft Sleeve
    179
  - Balancer Bushing Replacing Tool 1 Assembly
    179
  - Balancer Bushing Replacing Tool 1 Components Parts
    180
  - Balancer Bushing Replacing Tool 2
    181
  - Balancer Replacing Tool Components Parts
    182
  - Balancer Replacing Tools 3, 4, 5
    182
  - Injection Pump Gear Puller
    185
  - Engine Stand
    186
  - Flywheel Stopper (for SAE Flywheel and Housing)
    186
  - Tool for Aligning the Crankcase 1 and 2
    186
  - Nozzle Adaptor for Measuring Cylinder Compression Pressure
    187
  - Jig for Governor Connecting Rod
    188
  - Engine: Mechanism
    189
  - Engine: Feature
    191
- Cylinder Block
  192
- Engine Body
  192
- Half-Floating Head Cover
  192
- Center Direct Injection System (E-CDIS)
  193
- Cylinder Head
  193
- Built-In Dynamic Balancer (Balancer Model Only)
  194
- Piston
  194
- Lubrication System
  195
- Oil Cooler
  195
- Cooling System
  196
- Thermostat
  196
- Bottom Bypass System
  197
- Fuel System
  198
- Governor
  198
  - 2 Stage DI Nozzle
    201
  - Injection Pump with F.S.P.
    202
- Boost Compensator
  203
- Turbocharger System
  203
- Intake Air Filter
  204
- Intake System
  204
  - Service
    205
  - Engine Does Not Start
    207
  - Engine Troubleshooting
    207
  - Starter Does Not Run
    207
  - Either Black or Dark Gray Exhaust Gas Is Observed
    208
  - Either White or Blue Exhaust Gas Is Observed
    208
  - Engine Revolution Is Not Smooth
    208
  - Oil Leak into Exhaust Pipe or Suction Pipe
    208
  - Deficient Output
    209
  - Excessive Lubricant Oil Consumption
    209
  - Fuel Mixed into Lubricant Oil
    209
  - Low Oil Pressure
    209
  - Battery Quickly Discharged
    210
  - Engine Overheated
    210
  - High Oil Pressure
    210
  - Engine Body Servicing Specifications
    211
  - Engine: Servicing Specifications
    211
  - Cooling System Servicing Specifications
    216
  - Lubricating System Servicing Specifications
    216
  - Electrical System Servicing Specifications
    217
  - Fuel System Servicing Specifications
    217
  - Engine: Tightening Torques
    218
- Tightening Torques for General Use Screws, Bolts and Nuts
  218
- Tightening Torques for Special Use Screws, Bolts and Nuts
  219
  - Checking and Adjusting Engine Body
    221
  - Compression Pressure
    221
  - Engine: Checking, Disassembling and Servicing
    221
  - Check of Valve Clearance
    222
  - Checking and Adjusting Cooling System
    223
  - Checking and Adjusting Lubricating System
    223
  - Engine Oil Pressure Check
    223
  - Fan Belt Tension Check
    223
  - Fan Belt Damage and Wear
    224
  - Radiator Cap Air Leakage
    224
  - Radiator Water Leakage
    224
  - Thermostat Valve Opening Temperature
    225
  - Checking and Adjusting the Fuel System
    226
  - Injection Timing Check
    226
  - Fuel Tightness of Delivery Valve
    227
  - Fuel Tightness of Pump Element
    227
  - Check Nozzle Injection Pressure
    228
  - Nozzle Spraying Condition Check
    228
  - Valve Seat Tightness Check
    228
  - Checking and Adjusting Electrical System
    229
  - Battery Specific Gravity Check
    230
  - Magnet Switch Continuity Test
    231
  - Magnetic Switch Test
    231
  - Motor Test
    231
  - Alternator on Unit Test
    232
  - Engine Stop Solenoid
    232
  - Intake Air Heater
    232
  - Checking and Adjusting the Tubrocharger
    233
  - Compressor Side Check
    233
  - Radial Clearance
    233
  - Turbine Side Check
    233
  - Air Cleaner, Muffler and Others
    234
  - Draining Oil and Coolant
    234
  - Engine Disassembling and Assembling
    234
  - External Components
    234
  - Oil Pipe
    235
  - Turbocharger
    235
  - Cylinder Head and Valves
    236
  - Cylinder Head Cover and Nozzle Holder
    236
  - Injection Nozzle Oil Seal (if Necessary)
    237
  - Rocker Arm and Push Rod
    237
  - Cylinder Head and Tappet
    238
  - Replacing the Cylinder Head Gasket
    239
  - Selecting Cylinder Head Gasket
    239
  - Valve
    239
  - Thermostat Assembly
    240
  - Removing the Fuel Injection Pump Unit
    241
  - Reassembling the Fuel Injection Pump Unit
    242
  - Governor Housing Assembly
    243
  - Governor Fork Lever Assembly
    244
  - Governor Lever
    245
  - Stop Lever
    245
  - Fuel Camshaft and Governor Weight
    246
  - Replacing Injection Pump Assembly
    248
  - Installing Procedure of Injection Pump Assembly
    249
  - Fan Drive Pulley
    250
  - Oil Cooler Removal
    251
  - Water Pump
    251
  - Gear Case Cover
    252
  - Idle Gear and Camshaft
    252
  - Relief Valve
    252
  - Camshaft and Balancer Shaft (for Balancer Model)
    253
  - Idle Gear 1 and Idle Gear 2 (for Balancer Model)
    253
  - Oil Pan and Oil Strainer
    254
  - Piston and Connecting Rod
    254
  - Plate (Gear Case)
    254
  - Connecting Rod Cap
    255
  - Piston Removal
    255
  - Piston Ring and Connecting Rod
    256
  - Bearing Case Cover
    257
  - Flywheel
    257
  - Crankcase 2
    258
  - Flywheel Housing
    258
  - Crankcase 1 and Crankcase 2
    259
  - Crankshaft
    260
- Alternator
  261
  - Disassembling Motor
    261
  - Front Bracket
    261
  - Intake Air Heater Disassembly
    261
- Starter
  261
  - Brush
    262
  - Pulley
    262
  - Rotor
    262
  - Bearing at Slip Ring Side
    263
  - Reassembling the Brush
    263
  - Cylinder Head Servicing
    264
  - Cylinder Head Surface Flatness
    264
  - Top Clearance
    264
  - Cylinder Head Flaw
    265
  - Valve Lapping
    265
  - Valve Recessing
    265
  - Clearance between Valve Stem and Valve Guide
    266
  - Replacing Valve Guide
    266
  - Correcting Valve and Valve Seat
    267
  - Free Length and Tilt of Valve Spring
    268
  - Oil Clearance between Rocker Arm Shaft and Bearing
    268
  - Valve Spring Setting Load
    268
  - Oil Clearance between Tappet and Tappet Guide Bore
    269
  - Push Rod Alignment
    269
  - Idle Gear Side Clearance
    270
  - Timing Gear Backlash
    270
  - Timing Gears Servicing
    270
  - Cam Height
    271
  - Camshaft Alignment
    271
  - Camshaft Side Clearance
    271
  - Bushing
    272
  - Oil Clearance between Idle Gear Shaft 1, 2 and Idle Gear 1, 2
    272
  - Oil Clearance of Camshaft Journal
    272
  - Replacing Idle Gear Bushing
    272
  - Balance Shaft Alignment
    273
  - Balancer Shaft Side Clearance
    273
  - Oil Clearance of Balancer Shaft Journal
    273
  - Piston and Connecting Rod Servicing
    273
  - Oil Clearance between Piston Pin and Small End Bushing
    274
  - Replacing Small End Bushing
    274
  - Clearance between Piston Ring and Groove
    275
  - Connecting Rod Alignment
    275
  - Piston Ring Gap
    275
  - Crankshaft Alignment
    276
  - Crankshaft Servicing
    276
  - Crankshaft Side Clearance
    276
  - Oversize Dimensions of Crankshaft Journal
    276
  - Oil Clearance between Crankpin and Crankpin Bearing
    277
  - Undersize Dimensions of Crankpin
    278
  - Oil Clearance between Crankshaft Journal and Crankshaft Bearing
    279
  - Replacing Crankshaft Sleeve
    279
  - Undersize Dimensions of Crankshaft Journal
    279
  - Correcting Cylinder (Oversize)
    280
  - Cylinder Servicing
    280
  - Cylinder Wear
    280
  - Oil Pump Servicing
    280
  - Clearance between Outer Rotor and Pump Body
    281
  - Clearance between Rotor and Cover
    281
  - Overrunning Clutch
    281
  - Starter Servicing
    281
  - Brush Holder
    282
  - Brush Wear
    282
  - Commutator and Mica
    282
  - Alternator Servicing
    283
  - Armature Coil
    283
  - Field Coil
    283
  - Brush Wear Check
    284
  - Rotor Check
    284
  - Slip Ring
    284
  - Hydraulic System - Mechanism Section
    285
- Features of the Hydraulic System
  287
- General
  287
- Main Specifications of Hydraulic Components
  288
- Hydraulic Components Layout
  291
- Hydraulic Circuit Diagram
  292
  - Pilot Pump Circuit
    293
  - Hydraulic Circuit Diagram (2)
    294
  - Hydraulic Pump Main Specifications
    295
  - Hydraulic Pump Outer View
    297
  - Hydraulic Pump Outer Structure - Diagrams
    298
- Functional Parts 1
  299
- Hydraulic Pump Functional Parts
  299
- Functional Parts 2
  300
- Pump Control Circuit
  301
  - LS Control 1
    302
  - LS Control 2
    303
  - LS Control 3
    304
  - Horse Power Control Diagrams
    305
- FYI (for Your Information)
  308
  - LS Pump Swash Plate Control Mechanism KX080-3
    308
  - Horse Power Control Mechanism
    309
  - Control Valve
    310
- Feature
  310
- Hydraulic Circuit
  310
- Outline
  310
  - Flow Rate
    311
  - Overall View of Control Valve
    313
  - Control Valve Specifications
    314
  - Pressure Receiving Characteristic of Main Spoo
    314
  - Pressure Receiving Characteristic of Travel Independent and Other Valves
    314
  - Tightening Torque for Aluminum Cap/Port Joint (Pipe)
    314
  - Swing Section Diagrams
    315
  - Control Valve: Uni-Block Section Assy Diagrams
    316
  - Boom Diagram
    318
  - Bucket Diagram
    319
  - S/P1 Diagram
    319
  - Arm Diagram
    320
  - Travel Independent Valve Diagram
    321
  - Travel, R Section Diagram
    322
  - Travel, L Section Diagram
    323
  - Combined Valve Diagram
    324
  - S/P2 Valve Diagram
    325
  - Dozer Section Diagram
    326
  - Swivel Section Diagram
    327
  - Outlet Section, P3 Bypass Valve
    328
- Layout, Delivery Circuit and External Pipe Flow
  329
- Swivel Section
  337
- FYI (for Your Information)
  348
- Function of Swivel Motor
  362
  - Hydraulic Motor
    362
  - Relief Valve Functions
    362
  - Negative Brake Release
    363
  - Negative Brake Function
    364
  - Planetary Reduction Ratio
    364
  - Hydraulic Timer
    365
  - Parking Brake (if Equipped with Parking Brake)
    365
- Parking Brake and Hydraulic Timer
  365
- General
  375
  - Motor Type
    375
  - Travel Motor (GM Motor)
    375
  - Travel Motor Specifications
    375
- Outer View
  376
  - Basic Structure of GM Motor
    377
  - Sectional View of GM Motor
    378
  - GM Motor Parts List
    380
  - First Reduction Section
    381
  - GM Motor Function
    381
  - Reduction Gears
    381
  - Second Reduction Section
    381
  - Entire Reduction Gears
    382
  - Brake Valve, Relief Valve
    383
  - Hydraulic Drive
    383
  - Parking Brake
    383
  - Two-Speed Select Mechanism
    383
  - Brake Valve
    384
  - Steady Running
    384
  - Runaway Prevention Function
    385
  - Stopping (Braking)
    385
  - Relief Mechanism Behavior
    386
  - Relief Mechanism Behavior - Stopping
    388
  - Low-Speed Stage
    390
  - Two-Speed Select Mechanism (Manual Two-Speed Selection)
    390
  - High-Speed Stage
    391
  - Parking Brake - Braking
    392
  - Parking Brake - Running
    392
  - Shockless Valve of Boom Cylinder Pilot Line - Structure
    393
  - Shockless Valve of Boom Cylinder Pilot Line - Function
    394
  - Port 1 to Port A: Free Flow
    395
  - Port a to Port 1: Flow Control Released
    395
  - Boom Cylinder Holding Valve Circuit Diagram
    396
  - Boom Cylinder Holding Valve Outline
    396
  - Boom Cylinder Holding Valve Specifications
    396
- Holding Valve Installation
  397
- Holding Valve (Manual Open Type)
  398
- Main Parts Function
  398
- Solenoid Proportional Control Valve
  405
- Solenoid Valve
  405
  - Hydraulic System - Service Section
    409
  - Case Study: Abnormal Speed
    411
  - Hydraulic System Troubleshooting
    411
  - Case Study: the Power Is Weak
    413
  - Case Study: Poor Manipulation and Abnormal Operation
    414
  - LS Control System Troubleshooting
    417
  - Procedures for Hydraulic Pilot System Troubleshooting
    417
  - Procedures for LS Control Valve Troubleshooting
    418
  - Compensation Spool
    419
  - Procedures for LS Control Pump Troubleshooting
    420
  - Fundamentals of LS Pump Troubleshooting (Defective Portions and Symptoms)
    421
  - Pump Component Trouble Causes and Remedy
    422
  - Control Valve Component Troubleshooting
    424
  - Control Valve in General Troubleshooting
    424
  - General Hydraulic System Troubleshooting
    425
  - Relief Valve, Unload Valve and High Pressure Selector Valve Troubleshooting
    425
  - Travel Motor Component Troubleshooting
    426
  - Counterbalance Valve Function Troubleshooting
    427
  - Hi-Low Speed Function Specifications
    428
  - Hydraulic System Specifications
    429
  - Specifications of Pump
    429
  - Main Relief Valve Specifications (at the Measurement Port on the Machine)
    430
  - Main Relief Valve Specifications (Bench Data)
    430
  - Relief Valve Pressure Setting Specifications
    430
  - Overload Relief Valve Specifications (Bench Data)
    431
  - Overload Relief Valve (at the Measurement Port on the Machine)
    432
  - Pilot System Pressure
    433
  - Swivel Performance
    434
  - Traveling Performance
    435
  - Cylinder Speed
    437
  - Natural Fall
    437
  - Cylinder Specifications
    438
  - Cylinder Dimensions
    439
  - Arm Cylinder Tightening Torques
    441
  - Boom Cylinder Tightening Torques
    441
  - Bucket Cylinder Tightening Torques
    441
  - Blade Cylinder Tightening Torques
    442
  - Swing Cylinder Tightening Torques
    442
  - Gauges and Special Tools for Pressure Testing
    443
  - Hydraulic System Testing
    443
  - Testing Instruments & Special Tools
    443
  - Flow Meter and Special Tools for Flow Testing
    444
  - Points to Remember When Replacing the Pump or Using a Vacuum Pump
    445
  - Precautions in Handling the Pump
    445
  - Air Bleeding Method in Case the Hydraulic Oil in the Tank Looks Cloudy with Air Bubbled
    446
  - Pilot Pressure
    447
  - Primary Pressure
    447
  - Secondary Pressure
    448
  - Adjustment of the Relief Valve
    449
  - Main Relief Valve: LS System
    449
  - Main Relief Valve: Travel System
    450
  - Unload Valve Adjustment
    451
  - Unload Valve Measurement Method
    451
  - Overload Relief Valve Adjustment
    452
  - Overload Relief Valve Measurement Method
    452
  - Location of the Relief Valve
    453
  - Swivel Brake Valve Pressure
    454
  - Measuring the Main Pump Max. Flow Rate
    456
  - Measuring the Main Pump’s Stand-By Flow Rate
    458
  - LS Control Pressure
    459
  - Traveling Motor Drain Amount
    460
  - Swivel Motor Drain Amount
    461
  - Swivel Motor Block Performance
    462
  - Traveling Motor Block Performance
    463
  - Arm Cylinder Speed
    464
  - Boom Cylinder Speed
    464
  - Checking each Operating Speed
    464
  - Bucket Cylinder Speed
    465
  - Dozer Cylinder Speed
    465
  - Swing Cylinder Speed
    465
  - Straight Travel Performance
    466
  - Swivel Speed
    466
  - Traveling Speed
    466
  - Coupling Flange Disassembling and Reassembling
    467
  - Pump Assy Dismount
    468
  - Pump Disassembling and Reassembling
    468
  - Adaptor and Joint Disassembling and Reassembling
    470
  - Disassembly and Reassembly
    472
  - Remove Gear Pump
    474
  - Remove LS Control Valve
    475
  - Remove Horsepower Control Valve
    476
  - Remove the Valve Block Assy
    478
  - Remove the Cylinder Block Assy
    480
  - Inner Parts of the Cylinder Block View
    481
  - Remove the Main Shaft
    482
  - Reassembling
    484
  - Gear Pump Disassembling and Reassembling
    485
  - Adaptor and Joint
    490
  - Control Valve Disassembling and Reassembling
    490
  - Fitting the Valve Assembly
    492
  - Valve Assy Disassembly
    495
  - Inlet Section (P1, P2) (Travel Independent Valve)
    501
  - Travel R Section
    502
  - Travel L Section
    503
  - P3 Inlet Section
    504
  - SP2 Valve Section
    506
  - Dozer Section
    507
  - Swivel Section View
    508
  - P3 Confluence Valve
    509
  - Mono-Block Valve Assy
    510
  - Swing Valve Section
    512
  - End Plate
    513
  - Pilot Valve
    514
  - Dozer Pilot Valve
    515
  - Swing Pilot Valve
    516
  - Pilot Valve Disassemble (Dozer, Swing)
    518
  - Travel Pilot Valve
    519
  - GM Motor: Troubleshooting and Corrective Measures
    520
  - Pilot Pressure: Disassembling Procedures
    521
  - Remove the Plugwith the Grease Cup (203),NHU Packing (210) and O-Ring (212) Attached
    524
  - GM Motor: Cleaning the Parts
    529
  - GM Motor: Assembling Instructions
    530
  - Swivel Motor
    541
  - Travel Motor (Wheel Motor)
    542
  - Travel Motor Handling Precautions
    544
  - Travel Motor Piping
    544
  - Travel Motor Positioning
    544
  - Travel Motor Servicing (GM090N, Nabtesco Make)
    544
  - Selecting the Right Hydraulic Oil
    545
  - Changing the Hydraulic Oil
    546
  - Changing the Lube Oil
    546
  - Gear Oil Changing Procedure
    546
  - GM Motor Maintenance and Inspection
    546
  - Mobilube
    546
  - GM Motor Troubleshooting
    548
  - Hydraulic System Service Outline
    549
  - Standard Tools
    549
  - XD-3
    549
  - Equipment and Materials
    550
  - Measuring Devices
    550
  - Fixture
    551
  - Manufacturing Tools
    551
  - Retainers
    551
  - Work Stand
    551
  - Bearing Pre-Load Adjuster
    552
  - Steel Rod
    552
  - Aluminum Rod
    553
  - Flat Barand Steel Pipe
    553
  - Long Eye Bolt
    553
  - PF Eye Bolt
    553
  - F/S Installation Tools
    554
  - GM Motor Tightening Torques
    555
  - GM Motor Weight Table
    555
  - General Suggestions When Working
    556
  - GM Motor Disassembly
    556
  - GM Motor Disassembly Procedure
    557
  - Cover Removal
    558
  - Lubricating Oil Drain
    558
  - Disassembly of Hydraulic Motor Parts
    567
  - Removal of Spring Inside Cylinder Block
    569
  - Shaft Removal
    569
  - Removal of Ball Bearing
    570
  - Removal of Hold Flange
    571
  - Fixture Removal
    572
  - Spindle Removal
    572
  - Ball Bearing Removal
    573
  - Removal of Ball Bearing, RV Gear Assembly and Pin
    573
  - Disassembly of Hold Flange Mounted Parts
    574
  - Removal of Spindle Mounted Parts
    574
  - Finish Washing
    575
  - Rough Washing of Various Parts
    575
  - GM Motor Service Preparations
    577
  - GM Motor Assembly
    578
  - Hub Section Assembly
    579
  - Spindle Section Assembly
    580
  - Mount the RV Gear Assembly
    581
  - Hold Flange Mounting
    582
  - Fitting the Snap Ring
    583
  - Reamer Bolt Fastening
    583
  - Spur Gear Assembly
    584
  - Mounting on the Spindle
    585
  - Assembly of Cylinder Block Interior
    587
  - Assembly of Hydraulic Motor Parts
    588
  - Assembly of Parking Brake Section
    588
  - Assembly of Plugs in the Rear Flange
    589
  - Assembly of SRV in the Rear Flange
    590
  - Assembly of the Rear Flange Mounted Parts
    591
  - Connection of Rear Flange with Spindle
    592
  - Assembly of the Input Gear
    594
  - Cover Assembly
    595
  - Removal of Travel Motor
    596
  - Ball Bearing Pre-Load Adjustment Procedure
    597
  - Pre-Load Adjustment of Ball Bearing
    597
  - Shaft Direction Clearance Adjustment of the Tapered Roller Bearing
    599
  - GM Motor: Performance Confirmation Test
    601
  - Clearance Adjustment Parts - Dimensions Table
    602
  - Rotary Joint (Swivel Joint)
    604
  - Holding Valve
    605
  - Hydraulic Tank
    607
  - Filters
    609
  - Three Way Change Valve
    610
  - Pilot Primary Line and T Port Block
    611
  - Swivel Shuttle Valve
    612
  - Pilot Hose Relay Plate
    613
  - Pilot Hose Relay Adapter
    614
  - Unload Valve
    616
  - SP1 and SP2 Solenoid Valve
    617
  - Pilot Pump Relay Block
    618
  - Pilot Line Filter
    619
  - Cylinders
    620
  - Hydraulic Hose - Metallic Sealing Type
    622
  - Hydraulic Hose - Quick-Coupling Type
    622
  - Hose Route
    623
  - Pilot Hose 1
    623
  - Pilot Hose 2
    624
  - Pilot Hose 3
    625
  - Pilot Hose 4
    626
  - Pilot Hose 5
    627
  - High and Low Pressure Hose 1
    628
  - High and Low Pressure Hose 2
    629
  - Pump Delivery
    630
  - Suction
    631
  - Swivel Frame Partition
    632
  - Hose Route: Oil Cooler
    633
  - Front Hoses and Pipes
    634
  - List of Pilot Hoses (Upper Structure) (Swivel Frame, C/V Side)
    637
  - List of Pilot Hoses (Drain) (Upper Structure) (Hydraulic System)
    638
  - List of Pilot Hoses (Drain) (Upper Structure) (Platform, Control System)
    639
  - List of Pilot Hoses (Upper Structure) (Platform, Control System)
    639
  - List of High-Pressure Hoses (Upper Structure) (Swivel Frame, C/V Side)
    640
  - List of Low-Pressure Hoses (Upper Structure)
    641
  - Electrical System - Mechanism Section
    643
  - Electrical System Feature and Main Function
    645
  - Features of KX080-3 System
    645
  - Electrical System: Functional Comparison
    646
  - Background and Concept of RD
    647
  - Hand-Control System
    647
  - Service Port Speed Limit Control
    647
  - Speed Limit Function New Feature
    647
  - How to Operate Service Port 1
    648
  - Action Mode of First Service Port Operation
    649
  - Setting of Limited Flow Volume
    650
  - One Way Flow Operation
    652
  - Second Service Port Operation
    653
  - Instrument Panel, Switch View
    654
  - Theoretical Approach to Recognize the Principle of Speed Limit Control
    655
  - Fuel Supply Pump
    656
  - Fuel Supply Pump: How to Use
    657
  - Electrical System Function - Circuit Diagram
    659
  - When the Start Switch Is Pushed
    660
  - When Fuel Level Sensor Detects the Full Amount of Fuel
    661
  - When Pushing the Stop Switch During Supplying the Fuel
    662
  - When Pushing the Start Switch after the Full Fuel Level
    663
  - Intake Air Heater Control View
    664
  - Control Points
    665
  - Outline of Control System
    665
  - Air Intake Heater Diagram
    666
  - Air Intake Heater Relay (Code: No. N300-75211) Diagrams
    667
  - Components Layout
    669
  - Electrical Components and Circuit Diagram
    669
  - Electrical System: Main Components Diagram
    671
  - Electrical Circuit Diagram
    672
  - Service Mode Flow Chart
    673
  - Electrical Wiring Diagram
    674
  - Electrical System - Service Section
    675
  - Electrical System Troubleshooting
    677
  - Four Basic Checking Items for Electrical Diagnosis
    677
  - Electrical System: Troubleshooting Flow Chart
    678
  - Starter Motor Failure to Turn on
    678
  - Auto Release Malfunction
    679
  - AI System Failure
    680
  - Wire Harness Installation - Precautions
    681
  - Wire Harness Installation - Engine Earth, Starter Switch
    682
  - Checking Cables, Wires and Battery
    683
  - Handling On-Vehicle Battery
    683
  - Wire Harness Route Diagrams
    684
  - Around the Operator’s Seat
    690
  - Wire Harness Installation: Installation of Main Parts, Couplers and Harnesses
    690
  - Front
    692
  - Work Lamp Harness View
    693
  - Fuel Tank View
    694
  - Starter, Alternator, Battery
    696
  - Fuse Capacities and Circuits Table
    697
  - Fuses
    697
  - Slow Blow Fuse
    697
  - Solenoid Valve Wiring
    698
  - Air Conditioner Wiring
    699
  - Cab Wire Harness
    700
  - Couplers of Cab Harness
    700
  - Wire Harness for Woper Motor
    700
  - Auxiliary Harness Outlet
    701
  - Wire Harness for Room Lamp
    701
  - Wire Harness for Speaker and Antenna
    701
  - Circuit Diagram of Cab Harness
    703
  - Air Conditioner (Mechanism)
    705
  - Air Conditioner System
    707
  - Principle of Air Conditioner
    707
  - Change of State of Refrigerant
    708
  - Function and Construction
    709
  - Air Conditioner System Flow
    710
  - Compression
    711
  - Condensation, Expansion
    711
  - Evaporation
    711
  - Refrigerant Cycle
    711
  - Air Conditioner System Components: KX080-3
    712
  - Air Conditioner Control Panel
    713
  - Air Conditioner Unit Exploded View
    713
  - Air Conditioning System Main Components
    714
  - Outline of Sliding-Vane Type Compressor (SV07 Type)
    714
  - Sliding-Vane Type Compressor Diagram
    715
  - Sliding-Vane Type Compressor Operation
    716
  - High Pressure Relief Valve
    717
  - Magnetic Clutch
    718
  - Condenser
    719
  - Receiver
    720
  - Dual Pressure Switch
    721
  - Air Conditioner Unit
    722
  - Box Type Expansion Valve
    722
  - Evaporator
    723
  - Heater Core
    723
  - Water Valve
    724
  - A/C Blower
    725
  - A/C Blower Resistor
    726
  - Relays
    727
  - Frost Control
    728
  - Kx080-3
    729
  - Frost Control: Electric Circuit Diagram
    730
  - KX121-3, 161-3 Diagram
    730
  - KX080-3 Diagram
    731
  - Air Conditioner (Service)
    733
  - Air Conditioning System Servicing Specifications
    735
  - Air Conditioning System Performance Specifications
    737
  - Ambient Temperature Vs Normal High-Low Pressure Range
    738
  - Air Conditioner Tightening Torques
    739
  - Air Conditioner Maintenance Intervals
    740
  - Air Conditioning System Regular Check and Service Points
    740
  - Air Conditioning System Troubleshooting
    741
  - Charging Compressor Oil in Replacing the Functional Parts
    742
  - Connecting the Pipes
    742
  - Replacing the O-Rings
    742
  - Troubleshooting from Problem Symptoms (Except Refrigeration Cycle Troubles)
    742
  - Checking the Refrigerant Amount
    743
  - Checking the Refrigeration Cycle
    743
  - Normal Condition
    745
  - Using a Gauge Manifold
    745
  - Refrigerant Shortage
    746
  - Too Much Refrigerant and Poor Condenser Cooling
    746
  - Poor Compressor Performance
    747
  - Water Mixed in the Circuit
    747
  - Air Mixed in the Circuit
    748
  - No Refrigerant Circulation (Clogged Circuit)
    748
  - Checking for Gas Leak
    749
  - Too Open Expansion Valve
    749
  - Gas Leak Checking Procedure in the Engine Room
    750
  - Efficient Use of a Fluorescent Gas Leak Detector
    751
  - Gas Leak Checking Procedure in the Cabin (Cooler Unit)
    751
  - Precautions for Checking and Charging Air Conditioner Refrigerant Gas
    752
  - Precautions for Training (Charging Refrigerant)
    752
  - Training 1: Setting the Gauge Manifold
    753
  - Check Performance of Air Conditioning System
    754
  - Conversion Table
    755

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Kubota KX080-3 Operator's Manual

Kubota KX080-3 Operator's Manual (115 pages)

Brand: Kubota | Category: Excavators | Size: 7.04 MB

Table of Contents

Table of Contents
5
Dealer Service
23
Safe Operation
23
Technical Data
24
Description of Machine Parts
25
Instrument Panel and Control Elements
26
Checks before Start
28
- Daily Checks
  28
  - Wiper/Washer Switch
    28
  - Interior Lamp
    29
  - Beacon Light Switch
    29
  - Overload Warning Switch
    29
  - Cab Light Switch
    29
  - Working Light Switch
    30
  - Opening/Closing of CAB Door
    30
  - Opening/Closing of Front CAB Window
    31
  - Opening/Closing of Side CAB Window
    31
  - Emergency Hammer
    31
- Air Conditioner
  32
  - Air Flow
    32
  - Air Control Vent
    33
  - Control Panel
    33
  - Operation
    34
- Handling the Safety Devices
  34
  - Control Lever Lock
    34
Operation of the Engine
35
- Starting the Engine
  35
  - Display Selector Switch
    37
  - Charge Lamp
    37
  - Oil Lamp
    37
  - Glow Lamp
    37
  - LCD Display for Normal Operation
    38
  - LCD Display for Warning
    39
  - Warning Lamp
    40
  - Fuel Supply Pump
    40
  - Checkpoints after Starting the Engine
    41
- Starting the Engine under Cold Conditions
  42
- Stopping the Engine
  42
  - Engine Stop Button
    42
- Starting with an Auxiliary Battery
  43
  - Observe Following Guidelines When Starting with an Auxiliary Battery
    43
Excavator Operation
44
- Running-In of the New Excavator
  44
- Starting
  44
  - Adjusting the Operator's Seat
    45
  - Lock Lever
    45
- Driving
  46
  - Drive Levers(Right,Left)
    47
  - Travel Speed Switch
    48
- Turns
  49
  - Pivot Turn
    49
  - Spin Turn
    50
- Up and Downhill Driving
  50
- Parking on a Slope
  51
- Operation of the Dozer
  51
- Two Pattern Selection System(Tpss)
  52
  - Pattern Change
    52
- Operation of the Boom
  53
- Operation of the Arm
  53
- Operation of the Bucket
  54
- Unit Swing and Boom Swing Operation
  54
  - Unit Swing Operation
    54
  - Boom Swing Operation
    55
- Service Port Operation
  56
- 1-Way or 2-Way CIRCUIT SELECTION VALVE OPERATION
  62
- Emergency Shut-Off Valve
  63
- Boom Lowering Valve
  63
- Auto Idle (Ai) Operation
  64
- Important Information on Excavator Operation
  64
- How to Release Pressure Trapped in the Hydraulic System
  65
Transporting the Excavator on a Vehicle
66
Lifting of the Excavator
68
Maintenance
70
- Maintenance Intervals
  70
- Opening and Closing of Parts
  73
- Daily Checks
  76
  - Checking Coolant Level
    76
  - Checking Fuel Level
    76
  - Checking Engine Oil Level
    77
  - Checking Hydraulic Oil Level
    78
  - Checking V-Belt
    78
  - Greasing Bucket Pin and Bucket Link Pin
    79
  - Checking Radiator and Oil Cooler
    79
  - Checking Washer Liquid
    80
  - Cleaning Pre-Cleaner
    80
  - Checking and Cleaning Engine and Electrical Wiring
    80
  - Washing Whole Machine
    80
Regular Checks and Maintenance Work
81

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