Kubota KX080-3 User manual

OPERATOR'S MANUAL
English (Australia)
Code No. RD819-8131-7
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PRINTED IN JAPAN © KUBOTA Corporation 2007
READ AND SAVE THIS MANUAL
MODEL KX080-3
1BAAABSAP0010

KX080-3
AR . K . 6 - 6 . 1 . AK
Abbreviations Description
LIST OF ABBREVIATION
American Petroleum Institute
American Society for Testing and Materials, USA
Committee for European Construction Equipment
German Institute for Standards, Federal Republic of Germany
European Standard
"Front" means the front view towards the boom and dozer
High speed
International Standardization Organization
Japanese Industrial Standard
Volume (Liter)
Liter per minute
Low speed
Military Standards
Operator Protective Guards of Top Guard Level I
Revolutions Per Minute
Roll-Over Protective Structures
Society of Automotive Engineers, USA
Two Pattern Selection System
Auto Idle
API
ASTM
CECE
DIN
EN
FRONT
Hi
ISO
JIS
L
L-min
Lo
MIL
OPG (Top
Guard Level I)
rpm
ROPS
SAE
TPSS
AI

GENERAL SYMBOLS
The instruments and operation elements have been marked with a series of symbols in order to simplify the operation of
excavator. These symbols are listed below with the respective descriptions.
Safety alert Symbol
Warning lamp ''Fuel level too low''
System lamp
Warning lamp ''Engine Oil pressure''
Warning lamp ''Battery charge''
Warning lamp ''Auto Idle (AI) Lamp''
Indicator lamp ''Glow''
Working light switch
Horn
Wiper/Washer switch
Diesel
Hydraulic fluid
Gear oil
Grease
Fast
Slow
Excavator - Overhead movement toward the front
Excavator - Overhead movement toward the rear
Boom up
Boom down
Arm up
Arm crowd
Bucket crowd
Bucket dump
Boom swing (left)
Boom swing (Right)
Dozer raise
Dozer lower
Operation direction of control lever
Operation direction of control lever
Read operator's manual
Engine stop control lamp

FOREWORD
3
SAFETY FIRST
IMPORTANT :
NOTE :
3DANGER :
3WARNING :
3CAUTION :
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Indicates that equipment or property damage could result if
instructions are not followed.
Gives helpful information.
You are now the proud owner of a KUBOTA Excavator. This excavator is a product
of KUBOTA quality engineering and manufacturing. It is made of fine materials and
under a rigid quality control system. It will give you long, satisfactory service. To
obtain the best use of your excavator, please read this manual carefully. It will help
you become familiar with the operation of the excavator and contains many helpful
hints about excavator maintenance. It is KUBOTA's policy to utilize as quickly as
possible every advance in our research. The immediate use of new techniques in
the manufacture of products may cause some small parts of this manual to be
outdated. KUBOTA distributors and dealers will have the most up-to-date
information. Please do not hesitate to consult with them.
Please note that there may be some differences between your actual machine and
the illustration in the instructions.
This symbol, the industry's ''Safety Alert Symbol'', is used throughout this manual
and on labels on the machine itself to warn of the possibility of personal injury.
Read these instructions carefully. It is essential that you read the instructions and
safety regulations before you attempt to assemble or use this unit.

CONTENTS
SAFE OPERATION ............................................................................................ -1
DEALER SERVICE...................................................................................................... 1
TECHNICAL DATA...................................................................................................... 2
DESCRIPTION OF MACHINE PARTS........................................................................ 3
INSTRUMENT PANEL AND CONTROL ELEMENTS................................................. 4
CHECKS BEFORE START ......................................................................................... 6
DAILY CHECKS....................................................................................................... 6
Wiper/Washer Switch ....................................................................................................... 6
Interior Lamp..................................................................................................................... 7
Beacon Light Switch ......................................................................................................... 7
Overload Warning Switch ................................................................................................. 7
Cab Light Switch...............................................................................................................7
Working Light Switch ........................................................................................................8
Opening/Closing of CAB Door.......................................................................................... 8
Opening/Closing of Front CAB Window............................................................................ 9
Opening/Closing of Side CAB Window.............................................................................9
Emergency Hammer......................................................................................................... 9
AIR CONDITIONER ............................................................................................... 10
Air Flow........................................................................................................................... 10
Air Control Vent ..............................................................................................................11
Control Panel..................................................................................................................11
Operation........................................................................................................................ 12
HANDLING THE SAFETY DEVICES..................................................................... 12
Control Lever Lock.......................................................................................................... 12
OPERATION OF THE ENGINE................................................................................. 13
STARTING THE ENGINE ...................................................................................... 13
Display Selector Switch .................................................................................................. 15
Charge Lamp .................................................................................................................. 15
Oil Lamp ......................................................................................................................... 15
Glow Lamp......................................................................................................................15
LCD Display for Normal Operation ................................................................................. 16
LCD Display for Warning ................................................................................................17
Warning Lamp ................................................................................................................ 18
Fuel Supply Pump ..........................................................................................................18
Checkpoints after Starting the Engine ............................................................................ 19
STARTING THE ENGINE UNDER COLD CONDITIONS...................................... 20
STOPPING THE ENGINE...................................................................................... 20
Engine Stop Button......................................................................................................... 20
STARTING WITH AN AUXILIARY BATTERY ....................................................... 21
Observe Following Guidelines when Starting with an Auxiliary Battery..........................21
EXCAVATOR OPERATION ...................................................................................... 22
RUNNING-IN OF THE NEW EXCAVATOR........................................................... 22
Do not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours.. 22

CONTENTS
Oil Change in the Run-in Stage...................................................................................... 22
Seat Belt ......................................................................................................................... 22
STARTING ............................................................................................................. 22
Adjusting the Operator's Seat......................................................................................... 23
Lock Lever ......................................................................................................................23
DRIVING ................................................................................................................ 24
Drive Levers(Right,Left).................................................................................................. 25
Travel Speed Switch....................................................................................................... 26
TURNS................................................................................................................... 27
Pivot Turn ....................................................................................................................... 27
Spin Turn ........................................................................................................................ 28
UP AND DOWNHILL DRIVING.............................................................................. 28
PARKING ON A SLOPE ........................................................................................ 29
OPERATION OF THE DOZER .............................................................................. 29
TWO PATTERN SELECTION SYSTEM(TPSS) .................................................... 30
Pattern Change............................................................................................................... 30
OPERATION OF THE BOOM................................................................................ 31
OPERATION OF THE ARM................................................................................... 31
OPERATION OF THE BUCKET ............................................................................ 32
UNIT SWING AND BOOM SWING OPERATION.................................................. 32
Unit Swing Operation...................................................................................................... 32
Boom Swing Operation................................................................................................... 33
SERVICE PORT OPERATION .............................................................................. 34
First Service Port Operation ...........................................................................................34
One Way Flow Operation (First Service Port) ................................................................38
Second Service Port Operation ...................................................................................... 39
1-way or 2-way CIRCUIT SELECTION VALVE OPERATION ............................... 40
EMERGENCY SHUT-OFF VALVE ........................................................................ 41
BOOM LOWERING VALVE ................................................................................... 41
AUTO IDLE (AI) OPERATION ............................................................................... 42
IMPORTANT INFORMATION ON EXCAVATOR OPERATION ............................ 42
HOW TO RELEASE PRESSURE TRAPPED IN THE HYDRAULIC SYSTEM...... 43
TRANSPORTING THE EXCAVATOR ON A VEHICLE............................................. 44
LIFTING OF THE EXCAVATOR................................................................................ 46
MAINTENANCE......................................................................................................... 48
MAINTENANCE INTERVALS ................................................................................ 48
OPENING AND CLOSING OF PARTS.................................................................. 51
Opening/Closing of the Fuel Tank Cover........................................................................51
Opening/Closing of the Engine Hood .............................................................................51
Opening/Closing of the Side Cover ................................................................................52
Where to store the Tool ..................................................................................................52
Where to store the Grease Gun......................................................................................52
Where to keep Operator's Manual..................................................................................53
Utility Box........................................................................................................................ 53
Cup Holder......................................................................................................................53
Where to Store the Fire Extinguisher..............................................................................53
DAILY CHECKS..................................................................................................... 54
Checking Coolant Level.................................................................................................. 54
Checking Fuel Level ....................................................................................................... 54

CONTENTS
Checking Engine Oil Level.............................................................................................. 55
Checking Hydraulic Oil Level.......................................................................................... 56
Checking V-belt .............................................................................................................. 56
Greasing Bucket Pin and Bucket Link Pin ......................................................................57
Checking Radiator and Oil Cooler ..................................................................................57
Checking Washer Liquid................................................................................................. 58
Cleaning Pre-Cleaner ..................................................................................................... 58
Checking and Cleaning Engine and Electrical Wiring.....................................................58
Washing Whole Machine ................................................................................................ 58
REGULAR CHECKS AND MAINTENANCE WORK ................................................. 59
EVERY 50 SERVICE HOURS ............................................................................... 59
Draining the Water from the Fuel Tank...........................................................................59
Draining Water Separator...............................................................................................59
Battery ............................................................................................................................ 60
Battery Charging............................................................................................................. 61
Greasing Swing Bearing Teeth....................................................................................... 61
EVERY 100 SERVICE HOURS ............................................................................. 61
Greasing Boom Swing Fulcrum......................................................................................61
EVERY 200 SERVICE HOURS ............................................................................. 62
Adjusting V-belt Tension................................................................................................. 62
Checking Radiator Hoses and Clamps........................................................................... 63
Inspection and Cleaning Air Filter Element.....................................................................63
Air Filter Maintenance.....................................................................................................64
Greasing Swing Ball Bearing.......................................................................................... 64
Checking Fuel Line and Intake Air Line .......................................................................... 65
AIR CONDITIONER ............................................................................................... 65
Cleaning Air Filter ........................................................................................................... 65
Checking Air-Conditioner Condenser ............................................................................. 66
EVERY 250 SERVICE HOURS ............................................................................. 67
Engine Oil Change (First Engine Oil Change after 50 Service Hours) ........................... 67
Replacing Engine Oil Filter .............................................................................................68
Greasing Front Attachments (without Bucket Pin and Boom Swing Fulcrum)................ 68
EVERY 500 SERVICE HOURS ............................................................................. 69
Drive Unit Oil Change(First Oil Change of the 100 hours).............................................. 69
Replacing Fuel Filter Cartridge.......................................................................................70
Replacing Hydraulic Return Filter Cartridge(first replacement after 250 service hours). 70
EVERY 1000 SERVICE HOURS ........................................................................... 71
Replacing the Hydraulic Pilot Filter Element...................................................................71
Hydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank) 72
Hydraulic Oil Check with Hydraulic Hammers ................................................................ 73
EVERY 1000 SERVICE HOURS OR ONCE A YEAR ........................................... 73
Replacing Air Filter Element ...........................................................................................73
EVERY 1500 SERVICE HOURS ........................................................................... 74
Checking Fuel Injection Nozzle(Injection Pressure) .......................................................74
EVERY 2000 SERVICE HOURS ........................................................................... 74
Changing Front Idler and Track Roller Oil ......................................................................74
Checking the Alternator and Starter Motor .....................................................................74
EVERY 3000 SERVICE HOURS ........................................................................... 74
Checking Injection Pump ................................................................................................ 74
ANNUAL SERVICING............................................................................................ 74
Electrical Wiring and Fuses ............................................................................................74

CONTENTS
Checking the Electrical Circuit ........................................................................................ 74
Checking Air-Conditioner Pipes and Hoses....................................................................74
BIENNIAL SERVICING .......................................................................................... 74
Replacing Air-Conditioner Pipes and Hoses................................................................... 74
Replacement of Radiator Hoses and Hose Clamps ....................................................... 74
Changing Radiator Coolant ............................................................................................ 75
Replacing Fuel Hoses and Clamps ................................................................................ 76
Replacing Intake Air line.................................................................................................76
SERVICING AS REQUIRED.................................................................................. 77
Checking Amount of Refrigerant (gas) ...........................................................................77
OTHER ADJUSTMENTS AND REPLACEMENTS.................................................... 78
PURGING OF THE FUEL SYSTEM ...................................................................... 78
ADJUSTMENT OF TRACKS ................................................................................. 78
Special Information when Using Rubber Tracks............................................................. 79
CHANGING THE BUCKET .................................................................................... 80
FUSES ................................................................................................................... 80
Replacing Fuses ............................................................................................................. 80
Fuse Capacities and Circuits..........................................................................................80
Auxiliary Electric .............................................................................................................81
Slow Blow Fuse ..............................................................................................................81
TROUBLESHOOTING............................................................................................... 82
KUBOTA I.C.S. NAVIGATION LIST OF MESSAGES ........................................... 84
OPERATION UNDER COLD WEATHER CONDITIONS .......................................... 86
PREPARATION FOR OPERATION IN COLD WEATHER .................................... 86
PROCEDURE AFTER DONE WORK.................................................................... 86
LONG STORAGE ...................................................................................................... 87
RECOMMENDED OILS............................................................................................. 89
APPENDICES............................................................................................................ 91
MAIN DIMENSIONS .............................................................................................. 91
LIFTING CAPACITY .................................................................................................. 92

-1SAFE OPERATION
SAFE OPERATION
The best insurance against accidents is to abide by the
safety regulations.
Read and understand this section carefully, before
operating the excavator.
Every user, however experienced, should carefully read
and understand this section and those of the attachments
and accessories before taking the excavator into
operation. The owner is obliged to inform the operators of
these instructions in detail.
Keep this manual in the storage place. (See "Where to
keep Operator's Manual" in "MAINTENANCE" section.)
1. Make yourself acquainted with the excavator and be
aware of its limits. Read the operating instructions
carefully before starting the excavator.
2. Obey the danger, warning and caution labels on the
machine.
3. For your safety, a ROPS/OPG (Top Guard Level I)
with a seat belt is installed by KUBOTA.
AROPS: Roll-Over Protective Structure
AOPG (Top Guard Level I): Operator Protective
Guards of Top Guard Level I
OPG (Top Guard Level I) in accordance with
ISO10262 is equivalent in definition to FOPS (Falling
Object Protective Structure).
Always use the seat belt when the machine is
equipped with a ROPS/OPG (Top Guard Level I) as
this combination will reduce the risk of serious injury or
death, should the excavator be upset or falling objects
occur.
Do not modify any structural members of the ROPS/
OPG (Top Guard Level I) by welding, drilling, bending,
grinding or cutting, as this may weaken the structure.
If any component is damaged, replace it. Do not
attempt repairs. If the ROPS/OPG (Top Guard Level I)
is loosened or removed for any reason, make sure all
parts are reinstalled correctly. Tighten mounting bolts
to proper torque.
4. ROPS meets requirements of ISO 12117-2.
OPG (Top Guard Level I) meets requirements of
OSHA 1926 1003/ISO 10262.
5. The seat belt must be inspected regularly and
replaced if damaged.
6. Always sit in the operator's seat when starting engine
or operating levers or controls.
7. Study control lever pattern A and pattern B. Then
choose the one which is most familiar. Familiarize
yourself with the pattern selected by operation slowly
at low engine speed.
AEngage the lever lock to prevent accidental pattern
change.
8. Do not operate the excavator while under the influence
of alcohol, medication, controlled substances or while
fatigued.
1. BEFORE OPERATION
(1) Seat belt
(1) Pattern selector lever
(Two Pattern Selection System:TPSS)
(2) Lever lock knob

SAFE OPERATION-2
9. Check the surroundings carefully before using the
excavator or when attachments are being attached.
APay attention to the overhead clearance with electric
wires.
ACheck for pipes and buried cables before digging.
ACheck for hidden holes, hindrances, soft underground,
and overhangs.
ADuring excavator use, do not allow any persons within
the working range.
10.Do not allow other persons to use the machine before
having informed him on the exact operation and work
instructions, and be assured that the operator's
manual has been read and completely understood.
11.Do not wear baggy, torn or oversized clothing when
working with the excavator. Clothing can get caught in
rotating parts or control elements which can cause
accidents or injuries. Wear adequate safety clothing,
e.g. safety helmet, safety shoes, eye protection, ear
protection, working gloves, etc., as necessary and as
prescribed by law or statutes.
12.Do not allow passengers to ride on any part of the
excavator at anytime. The operator must remain in the
excavator seat during operation.
13.Check mechanical parts for correct adjustments and
wear. Replace worn or damaged parts immediately.
14.Keep your excavator clean. Heavy soiling, grease,
dust and grass can cause fires, accidents or injuries.
15.Use only KUBOTA authorized attachments.
16.Before starting the excavator, be absolutely sure that
the excavator has been filled with fuel, lubricated,
greased and undergone all necessary maintenance.
17.Do not modify the excavator, otherwise it could lead to
unforeseen safety problems.
18.Do not hammer anything that is above the operator's
seat level. Objects may fall into the operator station of
excavator from front.
19.Make sure attachments, particularly those utilizing
quick attach systems, are securely mounted.
20.Install the protective guards on the excavator in work
area that the objects may fall or come flying.
In that case, contact your local KUBOTA dealer.
(1) Helmet
(2) Clothing fit for work
(3) Tight seams
(4) Good grip footwear
(5) Well fitting cuffs
(6) Working gloves
(7) Straw hat
(8) Towel
(9) Baggy trousers
(10) Loose cuffs of the shirt
(11) Baggy shirt
(12) Rubber sandals