Kubota BX23S, LA340, BT603 Operators Manual

OPERATOR'S MANUAL

U.S.A. :KUBOTATRACTORCORPORATION

Canada :KUBOTACANADALTD.

France :KUBOTAEUROPES.A.S

Italy :KUBOTAEUROPES.A.SItalyBranch

Germany :KUBOTA(DEUTSCHLAND)GmbH

U.K. :KUBOTA(U.K.)LTD.

Spain :KUBOTAESPAÑAS.A.

Australia :KUBOTATRACTORAUSTRALIAPTYLTD.

Malaysia :SIMEKUBOTASDN.BHD.

Philippines :KUBOTAPHILIPPINES,INC.

Taiwan :SHINTAIWANAGRICULTURALMACHINERYCO.,LTD.

Indonesia :PTKUBOTAMACHINERYINDONESIA

Thailand :SIAMKUBOTACORPORATIONCO.,LTD.

Korea :KUBOTAKOREACO.,LTD.

India :KUBOTAAGRICULTURALMACHINERYINDIAPVT.LTD.

Vietnam :KUBOTAVIETNAMCO.,LTD.

1000

KubotaDrive,Grapevine,TX

Telephone:

590014 Telephone:(

19-25 Telephone:(

ViaGrandi, Telephone:(

SenefelderStr. Telephone:(

DormerRoad,Thame,Oxfordshire,OX Telephone:(

AvenidaRecombaNo. Telephone:(

25-29 Telephone:(

No.

3 Seksyen Telephone:(

232

QuirinoHi㷅hway,Baesa,QuezonCity Telephone:(

,Fen㷅pin㷅2ndRd,TaliaoShian㷅Kaohsiun㷅

Telephone:(

TowerAatEi㷅htyEi㷅ht@KasablankaLantai JalanRayaCasablankaKav.88,Jakarta Telephone:(

101/19-24 Pathumthani Telephone:(

41-27 Telephone:(

No. Telephone:(

LotBTelephone:(

888-4

KUBOTA

thAvenue,Markham,Ontario,L3S4K4,Canada

905)294-7477

,RueJulesVercruysse,Z.I.BP88,

33)1-3426-3434

2920068

PermasWay,Tru㷅anina,VIC

JalanSepadu25/

25,40400

Moo20,NavanakornIndustrialEstate,TambonKhlon㷅nuen㷅,AmphurKhlon㷅luan㷅,

,Jayumuyeok-㷅il,Baeksan-myeon,Gimje-si,Jeollabuk-do,Korea

,MedavakkamRoad,Sholin㷅anallur,Chennai-

3A2

-CN,MyPhuoc3IndustrialPark,BenCatDistrict,BinhDuon㷅Province,Vietnam

PeschieraBorrome(MI)Italy

39)02-51650377

3-563110

49)6106-873-0

44)1844-214500

34)91-508-6442

61)-3-9394-4400

60)3-736-1388

63)2-422-3500

886)7-702-2333

62)-21-29568-720

12120

66)2-909-0300

82)-63-544-5822

91)44-6104-1500

84)-650-3577-507

Rod㷅au/Nieder-Roden,Germany

,Poli㷅noIndustriallaLa㷅una,Le㷅anes,

123

ShahAlam,Selan㷅orDarulEhsanMalaysia

,THAILAND

76051

3029

TamanPerindustrianAxis,

KUBOTACorporation

AV. C. 3-3. -. K

95101

Ar㷅enteuilCedex,France

93

UN,U.K.

,Australia

1106

,Philippines

83107

,TaiwanR.O.C.

12870

Indonesia

600119

28914

,T.N.,India

(Madrid)Spain

Code No. K2892-7121-3

MODELS

BX23S LA340 BT603

B X

2 3

· L A

3 4 0

· B T

6 0 3

1AGAJBNAP0010

PRINTED IN U.S.A.

KUBOTA Corporation 2016

READ AND SAVE THIS MANUAL

ABBREVIATION LIST

Abbreviations Definitions

2WD

4WD

API

ASABE

ASTM

DIN

fpm

Hi-Lo

HST

m/s

PTO

RH/LH

ROPS

rpm

r/s

2-Wheel Drive

4-Wheel Drive

American Petroleum Institute

American Society of Agricultural and Biological Engineers, USA

American Society of Testing and Materials, USA

Deutsches Institut für Normung, GERMANY

Dual Traction [4WD]

Feet Per Minute

High Speed-Low Speed

Hydrostatic Transmission

Meters Per Second

Power Take Off

Right-hand and left-hand sides are determined by facing in the direction of forward travel

Roll-Over Protective Structures

Revolutions Per Minute

Revolutions Per Second

SAE

SMV

Society of Automotive Engineers, USA

Slow Moving Vehicle

California Proposition 65

WARNING

Engine exhaust, some of its constituents, certain vehicle components and fluids, contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

IMPORTANT

The engine in this machine is not equipped by the manufacturer with a standard spark arrester. It is a violation of California Public Resource Code Section 4442 to use or operate this engine on or near any forest-covered, brush-covered land, or grass- covered land unless the exhaust system is equipped with a working spark arrester meeting state laws. Other states or federal areas may have similar laws.

Canadian Electromagnetic Compatibility (EMC): This machine complies with Industry Canada ICES-002.

UNIVERSAL SYMBOLS

As a guide to the operation of your tractor, various universal symbols have been utilized on the instruments and controls. The symbols are shown below with an indication of their meaning.

Safety Alert Symbol

Read Operator's Manual

Hour meter/Elapsed Operating Hours

Diesel Fuel

Fuel-Level

Empty

Full

Engine-Run

Diesel Preheat/Glow Plugs (Low Temperature Start Aid)

Starter Control

Engine-Stop

Engine Oil-Pressure

Engine Coolant-Temperature

Battery Charging Condition

Electrical Power-accessories

Hazard Warning Lights

Turn Signal

Headlight

Master Lighting Switch

Engine Speed Control

Slow

Fast

Brake

Parking Brake

4-Wheel Drive-Off

4-Wheel Drive-On

Speed set-On

Speed set-Off

Differential Lock

Hydraulic Control-Lowered Position

Hydraulic Control-Raised Position

3-Point Lowering Speed Control

Remote Cylinder-Retract

Remote Cylinder-Extend

Mid-PTO

Mid-Rear-PTO

Rear-PTO

Power Take-Off Clutch Control-Off Position

Power Take-Off Clutch Control-On Position

Tilt Steering Lever

Loader Lock Lever Lock Position

Loader Lock Lever Unlock Position

FOREWORD

You are now the proud owner of a KUBOTA Tractor. This tractor is a product of KUBOTA’s quality engineering and manufacturing. It is made of the excellent materials and under rigid quality control systems. It will give you long, satisfactory service. To obtain the best use of your tractor, please read this manual carefully. It will help you become familiar with the operation of the tractor and contains many helpful hints about tractor maintenance. It is KUBOTA's policy to utilize, as quick as possible, every advance in our research. The immediate use of new techniques in the manufacturing of products may cause some small parts of this manual to become outdated. KUBOTA distributors and dealers will have the most up-to-date information. Please do not hesitate to consult them.

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.

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, could result in minor or moderate injury.

Indicates that equipment or property damage could result if instructions are not followed.

Gives helpful information.

BX23S, LA340, BT603

SAFE OPERATION......................................................................................................................7

VICING OF TRACT

SER

DEALER SERVICE............................................................................................................................................. 25

1. Warranty of the tractor............................................................................................................................... 26

2. Scrapping the tractor and its procedure .................................................................................................... 26

OR, LOADER, AND BACKHOE .........................................................25

SPECIFICATIONS OF THE TRACTOR.....................................................................................27

SPECIFICATION TABLE OF THE TRACTOR .................................................................................................... 27

TRAVELING SPEEDS TABLE ............................................................................................................................ 29

SPECIFICATIONS OF THE LOADER .......................................................................................30

LOADER SPECIFICATIONS TABLE .................................................................................................................. 30

BUCKET SPECIFICATIONS TABLE................................................................................................................... 30

DIMENSIONAL SPECIFICATIONS OF THE LOADER....................................................................................... 31

OPERATIONAL SPECIFICATIONS OF THE LOADER...................................................................................... 32

LOADER TERMINOLOGY.................................................................................................................................. 34

SPECIFICATIONS OF THE BACKHOE ....................................................................................35

BACKHOE SPECIFICATIONS............................................................................................................................ 35

1. Dimensions of the backhoe .......................................................................................................................35

2. Specifications table of the backhoe ...........................................................................................................37

3. Lift capacity of the backhoe (per SAE J31) ............................................................................................... 38

BACKHOE TERMINOLOGY............................................................................................................................... 39

IMPLEMENT LIMITATIONS.......................................................................................................40

IMPLEMENT LIMITATION TABLES .................................................................................................................... 40

INSTRUMENT PANEL AND CONTROLS.................................................................................44

INSTRUMENT PANEL, SWITCHES, AND HAND CONTROLS ......................................................................... 44

1. Key switch ................................................................................................................................................. 45

2. Tilt lever .....................................................................................................................................................45

3. Head light switch ....................................................................................................................................... 45

4. Hazard light switch .................................................................................................................................... 45

5. Turn signal light switch ..............................................................................................................................45

6. Hood open lever ........................................................................................................................................46

FOOT CONTROLS AND HAND CONTROLS ....................................................................................................47

1. Operator's seat .......................................................................................................................................... 48

2. Seat belt .................................................................................................................................................... 48

3. Brake pedal and parking brake lock pedal ................................................................................................ 48

3.1 How to use the parking brake ............................................................................................................ 48

4. Range gear shift lever (Hi-Lo) ................................................................................................................... 49

5. Front wheel drive lever ..............................................................................................................................49

6. Hand accelerator lever .............................................................................................................................. 50

7. Speed control pedal................................................................................................................................... 50

8. Speed set device .......................................................................................................................................50

8.1 How to use the speed set device .......................................................................................................51

9. Loader control lever................................................................................................................................... 51

ACCESSORY...................................................................................................................................................... 51

1. 12 V electric outlet .....................................................................................................................................51

2. Glove box .................................................................................................................................................. 52

PRE-OPERATION CHECK OF THE TRACTOR .......................................................................53

DAILY CHECK ITEMS BEFORE OPERATION OF THE TRACTOR .................................................................. 53

PRE-OPERATION CHECK OF THE LOADER..........................................................................54

LUBRICATION BEFORE OPERATING THE LOADER ...................................................................................... 54

BX23S, LA340, BT603

CHECKING THE TRANSMISSION FLUID .........................................................................................................54

WEIGHT OF THE IMPLEMENTS AS THE REAR BALLAST

1. Liquid ballast in the rear tires..................................................................................................................... 54

CHECK OF THE TIRE INFLATION BEFORE OPERATING THE LOADER....................................................... 54

PERFORMING THE TEST OPERATION OF THE LOADER ............................................................................. 55

REMOVING AIR FROM THE HYDRAULIC SYSTEM ........................................................................................55

............................................................................. 54

PRE-OPERATION CHECK OF THE BACKHOE.......................................................................56

CHECKING OF THE BACKHOE BEFORE OPERATION................................................................................... 56

PRE-OPERATING INSTRUCTION OF THE BACKHOE .................................................................................... 56

1. Check of the operator's seat before operating the backhoe ...................................................................... 56

2. Check of the ballast before operating the backhoe ...................................................................................56

3. Check of the tire inflation before operating the backhoe ...........................................................................56

OPERATING THE ENGINE .......................................................................................................57

STARTING THE ENGINE ................................................................................................................................... 57

1. Cold weather starting of the engine........................................................................................................... 60

2. Block heater (option) ................................................................................................................................. 60

STOPPING THE ENGINE................................................................................................................................... 60

WARMING UP OF THE ENGINE .......................................................................................................................60

1. Warm-up of the engine and transmission oil in the low temperature range............................................... 60

JUMP STARTING THE ENGINE ........................................................................................................................ 60

OPERATING THE TRACTOR....................................................................................................62

OPERATION OF NEW TRACTOR ..................................................................................................................... 62

PRECAUTIONS FOR GETTING ON AND OFF THE TRACTOR....................................................................... 62

OPERATION OF THE FOLDABLE ROPS .......................................................................................................... 62

1. Folding the ROPS...................................................................................................................................... 62

2. Raising the ROPS to upright position ........................................................................................................63

3. Adjusting the foldable ROPS .....................................................................................................................64

STARTING THE TRACTOR................................................................................................................................ 65

STOPPING THE TRACTOR............................................................................................................................... 68

CHECK DURING DRIVING ................................................................................................................................69

1. Cases to stop the engine immediately....................................................................................................... 69

2. Check items during driving ........................................................................................................................69

2.1 Easy Checker™.................................................................................................................................. 69

2.2 Fuel gauge .........................................................................................................................................70

2.3 Coolant temperature gauge ............................................................................................................... 70

2.4 Dealing with the overheated coolant temperature.............................................................................. 70

2.5 Hour meter .........................................................................................................................................71

2.6 Tachometer ........................................................................................................................................ 71

PARKING THE TRACTOR.................................................................................................................................. 71

TECHNIQUES FOR OPERATING THE TRACTOR ........................................................................................... 72

1. Differential lock ..........................................................................................................................................72

2. Installing the slow-moving-vehicle (SMV) emblem to operate the tractor on a road ................................. 73

3. Precautions for operating the tractor on a slopes and rough terrain ......................................................... 73

4. Precautions for transporting the tractor safely........................................................................................... 73

5. Directions for use of the power steering ....................................................................................................74

REVERSING THE OPERATOR'S SEAT............................................................................................................. 74

PTO (POWER TAKE-OFF) ........................................................................................................77

PTO OPERATION............................................................................................................................................... 77

1. PTO select lever ........................................................................................................................................77

2. PTO clutch lever ........................................................................................................................................77

3. PTO shaft cover and PTO shaft cap.......................................................................................................... 78

4. Using the stationary PTO........................................................................................................................... 78

5. PTO drive shaft.......................................................................................................................................... 79

5.1 Adjusting the length of PTO drive shaft.............................................................................................. 79

3-POINT HITCH AND DRAWBAR.............................................................................................80

BX23S, LA340, BT603

OVERVIEW OF 3-POINT HITCH AND DRA

3-POINT HITCH.................................................................................................................................................. 81

1. Precautions for attaching and detaching the implements to the 3-point hitch ........................................... 81

2. Adjusting the lifting rod (right).................................................................................................................... 81

3. Adjusting the top link ................................................................................................................................. 81

4. Adjusting the check chains ........................................................................................................................81

HITCH .................................................................................................................................................................81

1. How to use the 3-point hitch ......................................................................................................................83

WBAR............................................................................................ 80

HYDRAULIC UNIT.....................................................................................................................84

3-POINT HITCH CONTROL SYSTEM................................................................................................................ 84

1. Hydraulic control........................................................................................................................................ 84

2. Lowering speed of 3-point hitch................................................................................................................. 84

AUXILIARY HYDRAULICS .................................................................................................................................85

1. Connecting hoses for the backhoe ............................................................................................................85

2. Disconnecting hoses for the mower .......................................................................................................... 86

MOWER LIFT LINKAGE SYSTEM .....................................................................................................................86

1. Cutting height control dial ..........................................................................................................................86

2. Hydraulic control unit use reference chart .................................................................................................88

TIRES, WHEELS, AND BALLAST............................................................................................89

TIRES.................................................................................................................................................................. 89

1. Inflation pressure of tires ...........................................................................................................................89

2. Dual tires ................................................................................................................................................... 89

WHEEL TREAD ..................................................................................................................................................89

1. Front wheels ..............................................................................................................................................90

2. Rear wheels............................................................................................................................................... 90

BALLAST ............................................................................................................................................................91

1. Front ballast............................................................................................................................................... 91

2. Rear ballast ............................................................................................................................................... 91

OPERATING THE LOADER......................................................................................................93

PRECAUTIONS FOR OPERATING THE LOADER............................................................................................ 93

TECHNIQUES FOR OPERATING THE LOADER AND THE TRACTOR........................................................... 93

1. Filling the bucket........................................................................................................................................ 93

2. Precautions for lifting the load ...................................................................................................................94

3. Precautions for carrying the load............................................................................................................... 94

4. Dumping and lowering the bucket .............................................................................................................95

5. Precautions for operating the loader with float control .............................................................................. 95

6. Loading from a bank.................................................................................................................................. 96

7. Peeling and scraping the ground............................................................................................................... 97

8. Loading low trucks or spreaders from a pile.............................................................................................. 97

9. Backfilling .................................................................................................................................................. 98

10. Precautions for handling large heavy objects.......................................................................................... 99

VALVE LOCK ...................................................................................................................................................... 99

BUCKET LEVEL INDICATOR (IF EQUIPPED)................................................................................................... 99

HOW TO USE THE QUICK COUPLER............................................................................................................ 100

FRONT REMOTE HYDRAULIC CONTROL SYSTEM (IF EQUIPPED)........................................................... 100

1. Installing the front remote hydraulic control system ................................................................................ 100

2. Operating the control lever ......................................................................................................................100

3. How to use the remote control coupler.................................................................................................... 101

FRONT GUARD (OPTION FOR THE QUICK ATTACH COUPLER)................................................................ 102

1. How to use the front guard (if equipped) .................................................................................................102

USING THE ATTACHMENTS (IF EQUIPPED)................................................................................................. 103

1. Attaching the attachments (if equipped) ..................................................................................................103

2. Detaching the attachments (if equipped)................................................................................................. 105

3. Performing the maintenance of the attachments (if equipped)................................................................ 105

4. Attachments (option for the quick attach coupler) ...................................................................................105

BX23S, LA340, BT603

4.1 Quick bucket (option for the quick attach coupler) ...........................................................................105

4.2 Snow blade (option for the quick attach coupler)

4.3 Pallet fork (option for the quick attach coupler)................................................................................ 106

4.3.1 Assembling the pallet fork (option for the quick attach coupler) ..............................................106

DISMOUNTING THE LOADER......................................................................................................................... 106

............................................................................. 105

OPERATING THE BACKHOE.................................................................................................108

ENGINE SPEED WHEN OPERATING THE BACKHOE .................................................................................. 108

CONTROLS OF THE BACKHOE .....................................................................................................................108

1. Boom and swing lever .............................................................................................................................108

2. Boom and swing lock lever...................................................................................................................... 109

3. Dipperstick and bucket lever ................................................................................................................... 109

4. Stabilizer control levers ........................................................................................................................... 109

PLACING THE STABILIZER............................................................................................................................. 109

1. Placing the stabilizer on an unusually steep slope .................................................................................. 110

GENERAL BACKHOE OPERATION ................................................................................................................ 110

1. Digging with operating the dipperstick..................................................................................................... 110

2. Dealing with the spoil pile .........................................................................................................................111

3. Digging straight wall or cemetery .............................................................................................................111

4. Stabilizer pads (standard).........................................................................................................................111

TRANSPORTING OF THE BACKHOE..............................................................................................................111

1. Precautions for driving to the job-site ...................................................................................................... 112

2. Precautions of the trailer transporting...................................................................................................... 112

MAINTENANCE OF THE TRACTOR ......................................................................................113

SERVICE INTERVALS...................................................................................................................................... 113

LUBRICANTS, FUEL, AND COOLANT TABLE ................................................................................................ 115

1. Lubricants, fuel, and coolant for North American market ........................................................................ 115

2. Lubricants, fuel, and coolant for other than North American market ....................................................... 116

3. Biodiesel fuel (BDF)................................................................................................................................. 117

PERIODIC SERVICE OF THE TRACTOR...............................................................................119

HOW TO OPEN THE FRONT GUARD AND THE HOOD................................................................................ 119

DAILY CHECK OF THE TRACTOR.................................................................................................................. 119

1. Walk around inspection ........................................................................................................................... 119

2. Checking the fuel gauge and refueling .................................................................................................... 119

3. Checking the engine oil level................................................................................................................... 120

4. Checking the transmission fluid level ...................................................................................................... 120

5. Checking the coolant level....................................................................................................................... 121

6. Cleaning the panel and the radiator screen............................................................................................. 121

7. Checking the brake pedal........................................................................................................................ 122

8. Checking the gauges, the meters, and the Easy Checker™.................................................................... 122

9. Checking the head light, hazard light, and so on..................................................................................... 122

10. Checking the seat belt and the ROPS................................................................................................... 122

11. Checking and cleaning the electrical wiring and the battery cables....................................................... 122

12. Checking the movable parts ..................................................................................................................123

SERVICE OF THE TRACTOR EVERY 50 HOURS.......................................................................................... 123

1. Lubricate fittings with grease ...................................................................................................................123

2. Checking the engine start system ........................................................................................................... 123

3. Checking the OPC (operator presence control) system ..........................................................................124

4. Checking the wheel bolt torque ...............................................................................................................124

5. Cleaning the lock lever shaft ................................................................................................................... 125

SERVICE OF THE TRACTOR EVERY 100 HOURS........................................................................................ 125

1. Checking of the battery............................................................................................................................ 125

1.1 Battery charging ...............................................................................................................................126

1.2 Dealing with the battery when storing the tractor for a long period ..................................................126

2. Cleaning the air cleaner element............................................................................................................. 126

3. Checking the fuel filter .............................................................................................................................127

4. Adjusting the fan belt tension .................................................................................................................. 128

BX23S, LA340, BT603

5. Adjusting the HST neutral spring for speed control pedal .......................................................................128

6. Adjusting the brake pedal

SERVICE OF THE TRACTOR EVERY 200 HOURS........................................................................................ 129

1. Replacing the engine oil filter .................................................................................................................. 129

2. Changing the engine oil........................................................................................................................... 129

3. Replacing the transmission oil filter .........................................................................................................130

4. Checking the toe-in.................................................................................................................................. 130

4.1 Adjusting the toe-in .......................................................................................................................... 131

SERVICE OF THE TRACTOR EVERY 400 HOURS........................................................................................ 131

1. Adjusting the front axle pivot ................................................................................................................... 131

2. Changing the transmission fluid .............................................................................................................. 131

3. Cleaning the transmission strainer ..........................................................................................................132

4. Changing the front axle case oil ..............................................................................................................132

5. Replacing the fuel filter element ..............................................................................................................133

SERVICE OF THE TRACTOR EVERY 800 HOURS........................................................................................ 133

1. Adjusting the engine valve clearance ......................................................................................................133

SERVICE OF THE TRACTOR EVERY 1000 HOURS OR 1 YEAR .................................................................133

1. Replacing of the air cleaner element .......................................................................................................133

SERVICE OF THE TRACTOR EVERY 1500 HOURS...................................................................................... 133

1. Checking the injection pressure of the fuel injection nozzle ....................................................................133

SERVICE OF THE TRACTOR EVERY 2000 HOURS OR 2 YEAR .................................................................133

1. Flushing the cooling system and changing the coolant ...........................................................................133

2. Antifreeze ................................................................................................................................................ 134

SERVICE OF THE TRACTOR EVERY 3000 HOURS...................................................................................... 135

1. Checking the injection pump ................................................................................................................... 135

SERVICE OF THE TRACTOR EVERY 1 YEAR............................................................................................... 135

1. Checking the radiator hoses and the hose clamps.................................................................................. 135

2. Checking the power steering line ............................................................................................................ 135

3. Checking the fuel lines ............................................................................................................................ 135

4. Checking the intake air line ..................................................................................................................... 136

5. Checking the engine breather hose......................................................................................................... 136

SERVICE OF THE TRACTOR EVERY 4 YEAR............................................................................................... 136

1. Replacing the radiator hose (water pipes)............................................................................................... 136

2. Replacing the power steering hose .........................................................................................................137

3. Replacing the fuel hose ...........................................................................................................................137

4. Replacing the engine breather hose........................................................................................................ 137

5. Replacing the intake air line .................................................................................................................... 137

SERVICE OF THE TRACTOR AS REQUIRED................................................................................................ 137

1. Bleeding the fuel system ......................................................................................................................... 137

2. Replacing the fuse................................................................................................................................... 137

3. Replacing the light bulb ...........................................................................................................................138

........................................................................................................................ 128

MAINTENANCE OF THE LOADER.........................................................................................139

DAILY CHECKING THE LOADER .................................................................................................................... 139

SERVICE OF THE LOADER EVERY 10 HOURS ............................................................................................139

SERVICE OF THE LOADER EVERY 20 HOURS TO 30 HOURS ...................................................................140

SERVICE OF THE LOADER EVERY 50 HOURS ............................................................................................140

MAINTENANCE OF THE BACKHOE......................................................................................141

CHECKING THE BACKHOE DAILY ................................................................................................................. 141

SERVICE OF THE BACKHOE EVERY 10 HOURS .........................................................................................141

SERVICE OF THE BACKHOE EVERY 50 HOURS .........................................................................................142

1. Lubricating the loader ..............................................................................................................................139

1. Re-tightening of hardware of the loader ..................................................................................................140

1. Checking the torque of bolt and nut of the main frame............................................................................ 140

1. Lubricating the backhoe .......................................................................................................................... 141

1. Checking the bolt torque of the sub frame............................................................................................... 142

SERVICE OF THE BUCKET............................................................................................................................. 142

BX23S, LA340, BT603

1. Changing the backhoe bucket .................................................................................................................142

2. Service of the bucket teeth

GENERAL TORQUE SPECIFICATION ............................................................................................................ 144

...................................................................................................................... 143

STORAGE OF THE TRACTOR...............................................................................................146

STORING THE TRACTOR ...............................................................................................................................146

REMOVING THE TRACTOR FROM STORAGE.............................................................................................. 146

REMOVING THE LOADER......................................................................................................147

HOW TO REMOVE THE LOADER................................................................................................................... 147

STORING THE LOADER.................................................................................................................................. 150

REINSTALLING THE LOADER...............................................................................................151

HOW TO REINSTALL THE LOADER ............................................................................................................... 151

ADJUSTING THE HEIGHT OF THE LIFTING STAND ..................................................................................... 156

REMOVING THE BACKHOE...................................................................................................161

HOW TO REMOVE THE BACKHOE................................................................................................................ 161

STORING THE BACKHOE............................................................................................................................... 163

REINSTALLING THE BACKHOE............................................................................................164

HOW TO REMOVE THE BACKHOE................................................................................................................ 164

TROUBLESHOOTING.............................................................................................................167

ENGINE TROUBLESHOOTING .......................................................................................................................167

OPTIONS .................................................................................................................................168

OPTION ITEMS ................................................................................................................................................168

INDEX.......................................................................................................................................169

SAFE OPERATION

BX23S, LA340, BT603

PRECAUTIONS OF THE TRACTOR

Careful operation is your best insurance against an accident. Read and understand this manual carefully before operating the tractor. All operators, no matter how much they have experience, should read this and other related manuals before operating the tractor or any implement attached to it. It is the owner's obligation to instruct all operators in safe operation.

1. Precautions before operating the tractor

Know your equipment and its limitations. Read this entire manual before starting and operating the tractor.

1.1 General precautions

• Pay special attention to the safety labels on the tractor.

• Do not operate the tractor or any implement attached to the tractor while under the influence of alcohol, medication, controlled substances, or while you are fatigued.

• Carefully check the vicinity of the tractor before operating it or any implement attached to it. Do not allow any bystander around or near the tractor during operating it.

• Before allowing other people to use your tractor, explain them how to operate it and have them read this manual before operating it.

• Never wear loose, torn, or bulky clothing around the tractor. Loose, torn, or bulky clothing may catch on moving parts or controls, leading to the risk of an accident. Use additional safety items: hard hat, safety boots or shoes, eye and hearing protection, gloves, and so on, as appropriate or required.

• Do not allow passengers to ride on any part of the tractor at anytime. The operator must remain in the operator's seat during operating the tractor.

• Check the brakes, clutch, linkage pins, and other mechanical parts for improper adjustment and wear. Replace worn or damaged parts promptly. Check the tightness of all nuts and bolts regularly. For further details, see 4. Checking the wheel bolt

torque on page 124.

• Keep your tractor clean. Buildups of dirt, grease, and trash may contribute to fires and lead to personal injury.

• Use only implements meeting the specifications listed under IMPLEMENT LIMITATION TABLES on

page 40, or implements approved by KUBOTA.

• Use proper weights on the front or rear of the tractor to reduce the risk of upsets. When using the front loader, put an implement or ballast on the 3point hitch to improve stability. Follow the safe operating procedures specified in the implement or attachment manual.

• Do not modify the tractor. Unauthorized modification may affect the function of the tractor, which may result in personal injury.

1.2 Precautions for CAB and ROPS

KUBOTA recommends the use of a CAB or roll-overprotective-structures (ROPS), and seat belt in almost all applications. Combination of a CAB or ROPS and seat belt will reduce the risk of serious injury or death if the tractor should be upset.

• Check for overhead clearance which may interfere with a CAB or ROPS.

• Set the parking brake and stop the engine. Remove any obstructions which may prevent raising or folding the ROPS. Do not allow any bystander. Always perform functions of CAB or ROPS from a stable position at the rear of the tractor. Hold the top of the ROPS securely when raising or folding it. Make sure that all pins are installed and locked.

• If the CAB or ROPS is loosened or removed for any reason, make sure that all parts are reinstalled correctly before operating the tractor.

• Never modify or repair any structural member of a CAB or ROPS because welding, bending, drilling, grinding, or cutting it may weaken the structure.

• If any structural member of the CAB or ROPS is damaged, replace the entire structure at your local KUBOTA Dealer.

• If the tractor is equipped with a foldable ROPS, you may fold down it temporarily only when absolutely necessary to fold down it for areas with constraints on height. There is no protection of operator provided by the ROPS in the folded position. For operator safety, you should place the ROPS in the upright and locked position and fasten the seat belt for all other operations.

• Always use the seat belt if the tractor is equipped with a CAB or ROPS. Do not use the seat belt if a foldable ROPS is down or there is no ROPS. Check the seat belt regularly and replace if frayed or damaged.

(1) ROPS (2) Seat belt

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2. Precautions for operating the tractor

Operator safety is a priority. Safe operation, specifically with respect to overturning hazards, entails understanding the equipment and environmental conditions at the time of use. Some prohibited uses which can affect overturning hazards include traveling and turning with implements and loads carried too high, and so on. This manual sets forth some of the obvious risks, but the list of risks is not exhaustive, and the list of risks cannot be exhaustive. It is the operator's responsibility to be alert for any equipment or environmental condition that could compromise safe operation.

2.1 Precautions for starting to operate the tractor

• Always sit in the operator's seat when starting the engine or operating the levers or controls. Adjust the operator's seat referring to 1. Operator's seat on

page 48. Never start the engine while you are

standing on the ground.

• Before starting the engine, make sure that all levers including auxiliary control levers are in their neutral positions, that the parking brake is engaged, and that the power take-off (PTO) is disengaged or off. Fasten the seat belt if the tractor is equipped with a CAB, a fixed ROPS, or a foldable ROPS in the upright and locked position.

• Do not start the engine by shorting across starter terminals or bypassing the safety start switch. The tractor may start in gear and move if normal starting circuitry is bypassed.

• Do not operate or idle the engine in a nonventilated area. Carbon monoxide gas is colorless, odorless, and deadly.

• Check that the operator-presence-control-system (OPC) are functioning correctly before each time you use the tractor. Test safety systems. See

2. Checking the engine start system on page 123

and 3. Checking the OPC (operator presence

control) system on page 124.

Do not operate unless they are functioning correctly.

2.2 Precautions for working the tractor

• Pull only from the hitch. Never hitch to the axle housing or any other point except the hitch. Hitching to the axle housing or any other point except the hitch will increase the risk of serious personal injury or death due to a tractor upset.

(1) Hitch

• Keep all shields and guards in place. Replace any shield or guard that are missing or damaged.

• Avoid sudden starts. To avoid upsets, slow down when turning, on uneven ground, and before stopping.

• The tractor cannot turn with the differential locked. Do not turn with the differential locked as it could be dangerous.

• Do not operate the tractor near ditches, holes, embankments, or other ground surface features which may collapse under the weight of the tractor. The risk of tractor upset is even higher when the ground is loose or wet. Tall grass can hide obstacles, so walk the area first to be sure.

• Watch where you are going at all times. Watch for and avoid obstacles. Be alert at row ends, near trees, and other obstructions.

• When working in groups, always let the others know what you are going to perform before you perform it.

• Never try to get on or off a moving tractor.

• Always sit in the operator's seat when you are operating levers or controls.

• Do not stand between the tractor and the implement or trailed vehicle unless parking brake is applied.

• Do not operate or tow the tractor at speeds exceeding specific travel speed.

2.3 Safety for children

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Tragedy can occur if the operator is not alert to the presence of children. Children generally are attracted to machines and their work.

• Never assume that children will remain where you last saw them.

• Keep children out of the work area and under the watchful eye of another responsible adult.

• Be alert and shut the tractor down if children enter the work area.

• Never carry children on the tractor. There is no safe place for them to ride. They may fall off and be run over or interfere with your control of the tractor.

• Never allow children to operate the tractor even under adult supervision.

• Never allow children to play on the tractor or on the implement.

• Use extra caution when the tractor is backing up. Before the tractor starts to move, look down and behind to make sure that the working area is clear.

2.4 Precautions for operating the tractor on slopes

• When driving down a slope, make sure that 4-wheel drive is engaged to increase traction if equipped.

2.5 Precautions for driving the tractor on the road

• Check the front wheel engagement. The braking characteristics are different between 2-wheel drive and 4-wheel drive. Know the difference and use carefully.

• Always slow the tractor down before turning. Turning at high speed may tip the tractor over.

• Make sure that the slow-moving-vehicle (SMV) sign is clean and visible. Use the hazard lights and turn signals as required.

• On public roads, use the SMV emblem and hazard lights, if required by local traffic and safety regulations.

Slopes are a major factor related to loss-of-control and tip-over accidents, which can result in severe injury or death. All slopes require extra caution.

• To avoid upsets of the tractor, always back it up steep slopes. If you cannot back the tractor up on the slope or if you feel uneasy to back it up on the slope, do not operate the tractor on the slope. Stay off the slopes which is too steep for safe operation.

• Driving forward out of a ditch, mired condition, or up a steep slope increases the risk of the tractor to be upset backward. Always back the tractor out of a ditch, mired condition, or steep slope. The 4-wheel drive models require extra caution because their increased traction can give the operator false confidence in the ability of the tractor to climb the slopes.

• Keep all movement of the tractor on slopes slow and gradual. Do not change the speed or direction of the tractor suddenly. Do not apply brake suddenly. Do not move the steering wheel suddenly.

• Avoid changing the gears speed when the tractor is climbing or going down a slope. Changing the gears to neutral on a slope could cause loss of control.

• You should pay special attention to the weight and location of implements and loads because they will affect the stability of the tractor.

• To improve stability of the tractor on slope, follow recommendations for proper ballasting as shown in

BALLAST on page 91

(1) SMV emblem (2) Bracket

• Check all local traffic and safety regulations.

• Turn the headlights on. Dim the headlights when

meeting another vehicle.

• Drive at speeds that allow you to maintain the control at all times.

• Do not apply the differential lock while traveling at road speeds. The tractor may run out of control.

• Avoid sudden motions of the steering wheel because they can lead to a dangerous loss of stability. The risk is especially great when the tractor is traveling at road speeds.

• Keep the ROPS in the up position and wear the seat belt when driving the tractor on the road. Otherwise, you will not be protected in the event of a tractor roll-over.

• Do not operate an implement while the tractor is on the road. Lock the 3-point hitch in the raised position.

• When towing other equipment, use a safety chain and place an SMV emblem on the equipment as well.

(3) Knob nut

(1) Safety chain

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BX23S, LA340, BT603

• Set the implement-lowering-speed-knob in the lock

position to hold the implement in the raised position.

(1) 3-point hitch lowering speed

knob

(A) Fast

(B) Slow (C) Lock

3. Precautions for parking the tractor

(1) Brake pedal (2) Parking brake pedal (A) Depress

(B) Push down parking brake

pedal while depressing brake pedal

• Make sure that the tractor has come to a complete stop before dismounting from the tractor.

• Avoid parking on steep slopes. If it is at all possible, park on a firm and level surface. If it is not at all possible to park on a firm and level surface, park across a slope and chock the wheels. Failure to comply with the preceding warning may allow the tractor to move and could cause injury or death.

4. Precautions for operating the PTO

• Wait until all moving components have completely stopped before getting off the tractor, connecting, disconnecting, adjusting, cleaning, or servicing any PTO driven equipment.

• Keep the PTO-shaft-cover in place at all times. Replace the PTO-shaft-cap when the shaft is not in use.

• Disengage the PTO, lower all implements to the

ground, place all control levers in their neutral positions, set the parking brake, stop the engine, remove the key from the ignition, and lock the cab door if equipped. Leaving the transmission in gear with the engine stopped will not prevent the tractor from rolling.

(1) PTO shaft cover (2) PTO shaft cap (A) Normal position

(B) Raised position

• Before installing or using the PTO-drivenequipment, read the manufacturer's manual and review the safety labels attached to the equipment.

• When operating the stationary PTO-drivenequipment, always apply the parking brake of tractor and place the chocks behind and in front of

the rear wheels. Stay clear of all rotating parts.

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Never step over rotating parts.

5. Precautions for using 3-point hitch

• Use the 3-point hitch only with equipment designed for 3-point hitch usage.

• When using an implement mounted to the 3-point hitch, be sure to install the proper counterbalanceweight on the front of the tractor.

• When transporting the loads on the road, set the implement-lowering-speed-knob in the lock position to hold the implement in the raised position.

(1) 3-point hitch lowering speed

knob

(A) Fast

• To avoid injury from separation, do not extend the lift rod beyond the groove on the threaded rod.

(B) Slow (C) Lock

4. Place the gear-shift-lever in the neutral position.

5. Stop the engine.

6. Remove the starter key.

• Allow the tractor time to cool off before working on or near the engine, muffler, radiator, and so on.

• Do not remove the radiator cap while coolant is hot. When coolant is cool, slowly rotate the radiator cap to the first stop and allow sufficient time for excess pressure to escape before removing the radiator cap completely. If the tractor equips a coolantrecovery-tank, add coolant or water to the coolantrecovery-tank. Do not add coolant to the radiator. See 5. Checking the coolant level on page 121.

• Always stop the engine before refueling. Avoid spills and overfilling.

• Do not smoke when working around the battery or when the tractor is refueling. Keep all sparks and flames away from the battery and fuel tank. The battery presents an explosive hazard, because it gives off hydrogen and oxygen especially when you are recharging it.

• Before jump starting a dead battery, read and follow all of the instructions. See JUMP STARTING THE

ENGINE on page 60.

• Keep first-aid-kit and fire extinguisher handy at all times.

• Disconnect the ground cable of battery before working on or near electric components.

• To avoid the possibility of battery explosion, do not use or charge the refillable type battery if the fluid level is below the lower (lower limit level) mark. Check the fluid level regularly and add distilled water as required so that the fluid level is between the upper and lower levels.

• To avoid sparks from an accidental short circuit, always disconnect the ground cable (-) of battery first and reconnect it last.

(1) Groove

6. Precautions for servicing the tractor

Before servicing the tractor, follow the following procedure.

1. park the tractor on a firm, flat, and level surface.

2. Set the parking brake.

3. Lower all implements to the ground.

(1) Battery

• Do not mount a tire on a rim. A qualified person should mount a tire on a rim with the proper equipment.

• Always maintain the correct tire pressure. Do not inflate the tires above the recommended pressure shown in 1. Inflation pressure of tires on page 89.

• Securely support the tractor when either changing

SAFE OPERATION

BX23S, LA340, BT603

wheels or adjusting the width of wheel tread.

• Make sure that the wheel bolts have been tightened to the specified torque. See WHEEL TREAD on

page 89.

• Do not work under any hydraulically supported devices. They can settle, suddenly leak down, or be accidentally lowered. If it is necessary to work under the tractor or any machine elements for servicing or adjustment, securely support them with stands or suitable blocking beforehand.

• Escaping hydraulic fluid under pressure obtains sufficient force to penetrate skin, so escaping hydraulic fluid under pressure can cause serious personal injury. Before disconnecting the hydraulic lines, be sure to release all residual pressure. Before applying pressure to the hydraulic system, make sure that all connections are tight and that all lines, pipes, and hoses are free of damage.

• Hydraulic fluid escaping from pinholes may be invisible. Do not use hands to search for suspected leaks. Use a piece of cardboard or wood to search for suspected leaks. You should use safety goggles or other eye protection. If injured by escaping fluid, see a medical doctor at once. Hydraulic fluid will produce gangrene or severe allergic reaction.

(1) Cardboard (2) Hydraulic line

• Waste products such as used oil, fuel, hydraulic fluid, and batteries, can harm the environment, people, pets, and wildlife. Please dispose properly. See your local recycling center or KUBOTA Dealer to learn how to recycle or get rid of waste products.

(3) Magnifying glass

PRECAUTIONS OF THE LOADER

You can avoid most accidents of the loader equipment by simple safety precautions. Safety precautions of the loader, if you follow at all times, will help you operate your loader safely.

1. Precautions before operating the loader

• Read and understand all instructions and precautions in both the tractor and the loader operator's manuals before using the loader. Lack of knowledge can lead to accidents.

• It is the owner's responsibility to make sure that anyone who will operate the loader reads this manual first and becomes familiar with the safe operation of the loader.

• For your safety, KUBOTA strongly recommend using a ROPS (roll-overprotective-structures) with a seat belt in almost all applications. If your tractor equips a foldable ROPS, fold it down only when absolutely necessary and raise it up and lock it again as soon as possible. Do not wear the seat belt when a foldable ROPS is down or a fixed ROPS is removed. If you get any questions, consult your local KUBOTA dealer. Always use the seat belt when the tractor is equipped with a ROPS. Never use the seat belt when the tractor is not equipped with a ROPS.

• Visually check for hydraulic leaks and broken, missing, or malfunctioning parts. Perform necessary repairs before operating the loader.

• Replace damaged or illegible safety labels. See

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2. Safety labels of the loader on page 20 for

required labels.

• When the front loader is mounted on the tractor, enter and exit the operator's seat only from left side of the tractor.

• Engage the loader-control-valve-lock to prevent accidental actuation when the implement is not in use or during transport. Do not utilize the loadercontrol-valve-lock for maintenance or repair of the machine.

• Assemble, remove, and reinstall the loader only as directed in this manual. Otherwise, serious personal injury or death may result.

• Follow the following precautions when attaching the implements.

– Make sure that both handles of the boom LH

and RH contact the ear plates at the points (A) and are all the way down.

– Make sure that both lock pins of the boom LH

and RH protrude through the pin slots.

– KUBOTA recommends the use of KUBOTA

attachments on KUBOTA loaders. NonKUBOTA attachments, if used, must comply with ISO 24410, first edition 2005-04-15.

– Use of a non-KUBOTA attachment that does

not comply with ISO 24410 or the improper positioning of handle(s) or non-protrusion of pin(s) may result in detachment of the attachment or deformation, causing loss of performance, personal injury, or death.

(1) Handle (2) Ear plate (3) Pin slot (4) Lock pin

(A) Points where the handle

contacts the ear plate.

2. Precautions for operating the loader

• Operate the loader only when properly seated at the controls. Do not operate the loader from the ground.

• Move and turn the tractor at low speeds.

• Never allow anyone to get under the bucket of the loader or reach through the boom when the bucket is raised.

• Keep children, others, and livestock away when operating the loader and the tractor.

• Do not walk or work under a raised bucket of the loader or attachment unless it is securely blocked and held in position.

• For the stability of the tractor and operator's safety, add rear ballast to the 3-point hitch and to the rear wheels when using the loader.

• To increase stability of the application, adjust the rear wheels to the widest setting that is suitable for your application.

• Exercise extra caution when operating the loader with a raised bucket or attachment.

• Do not lift or carry any person on the loader, in the bucket, or other attachment.

• Avoid loose fill, rocks, and holes. Loose fill, rocks, and holes can be dangerous for operation or movement of the loader.

• Avoid overhead wires and obstacles when the loader is raised. Contacting the electric lines can cause electrocution.

• Gradually stop the loader boom when lowering or lifting.

• Use caution when handling loose or shiftable loads.

• When using the loaders for handling large, heavy, or shiftable objects, using proper handling attachments with them is recommended.

• Handling large, heavy objects can be extremely dangerous due to the following reasons:

– Danger of rolling the tractor over – Danger of upending the tractor – Danger of the object rolling or sliding down the

boom of the loader onto the operator

• If you must handle the large, heavy objects, protect yourself by the following preventive measures:

– Never lift the load higher than necessary to

clear the ground.

– Add the rear ballast to the tractor to

compensate for the load, or use the rear implement.

– Never lift large objects with the equipment that

may permit the large objects to roll back onto the operator.

– Move slowly and carefully, avoiding rough

terrain.

• Never lift or pull a load from any point on the loader or any attachments with a chain, rope, or cable. Otherwise, rollover or serious damage to the loader may occur.

• Be extra careful when operating the tractor on a slope. Always operate the tractor up and down, and never across the slope. Do not operate the tractor on steep slopes or unstable surfaces.

• When operating another implement on a hillside, be

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BX23S, LA340, BT603

sure to remove the loader to reduce the risk of rollover.

• Carry the boom of the loader at a low position during transport. Be able to see over the bucket.

• Allow for the length of the loader when turning it.

3. Precautions after operating the loader

• When loader work is complete and parking or storing, follow the following procedures before leaving the operator's seat of the tractor.

1. Choose flat, hard ground.

2. Lower the boom of the loader to the ground.

3. Stop the engine.

4. Set the brakes.

5. Remove the starter key.

• Make sure that the detached loader is on stands and on a hard, level surface.

• Before disconnecting the hydraulic lines, relieve all hydraulic pressure by moving the controls.

• Do not remove the loader from the tractor without an approved bucket attached.

4. Precautions for servicing the loader

• Always wear the safety goggles when servicing or repairing the machine.

• Do not modify the loader. Unauthorized modification may affect the function of the loader, which may result in personal injury.

• Do not use the loader as a work platform or a jack to support the tractor for servicing or maintenance. Securely support the tractor or any machine elements with stands or suitable blocking before working underneath. For your safety, do not work under any hydraulically supported devices. Hydraulically supported devices can settle, suddenly leak down, or be accidentally lowered.

• Escaping the hydraulic oil under pressure can obtain sufficient force to penetrate the skin, causing serious personal injury. Do not use hands to search for suspected leaks. If injured by escaping fluid, obtain medical treatment immediately.

• Do not tamper with the setting of the relief valve. The relief valve is pre-set at the factory. Changing the setting of the relief valve can cause overloading of the loader and tractor which may result in serious personal injury.

• When servicing or replacing the pins in cylinder ends, bucket, and so on, always use a brass drift and hammer. Otherwise injury from flying metal fragments could result.

PRECAUTIONS OF THE BACKHOE

Most accidents of the backhoe equipment can be avoided by simple safety precautions. Safety precautions of the backhoe, if you follow at all times, will help you operate your backhoe safely.

1. Precautions before operating the backhoe

• Read and understand all precautions in this manual before service or operation. Allow only trained personnel to operate or service the backhoe.

• It is the owner’s responsibility to make sure that anyone who will operate the backhoe reads this manual first and becomes familiar with the safeoperation of the backhoe.

• For safe operation of the backhoe, check the mounting-bolts for tightness and check that the mount levers are in the right position before operation the backhoe.

• Never operate the tractor with the backhoe attached and the loader removed.

• Check for buried material such as electrical lines, telephone lines, gas lines, and water lines. When in doubt about buried material, contact local utility companies for their buried location prior to operating the backhoe.

• Replace any safety decal that becomes damaged, lost, or illegible. Also renew all decals when repainting.

2. Precautions for operating the backhoe

• Do not allow anyone other than the operator on the unit of the backhoe while in operation or transport.

• Keep all person and animals away from swing area of backhoe.

• Pay attention to the backhoe when operating it on slopes to avoid tipping-over of the machine. Travel at a speed compatible with safe operation, especially when operating the machine on uneven terrain, crossing ditches, or while turning.

• Operate the backhoe from the backhoe operator's seat only.

• When using the backhoe on slopes, one stabilizer may be lower than the other. Pay extreme attention to the backhoe during excavation because the risk of tipping-over of the machine will increase.

• To reduce the risk of tipping-over of the machine on a slope, place the spoil to the high side of the excavation.

• Do not dig under the stabilizer or the tractor, especially in soft or sandy condition. Take extra precaution in wet or thawing ground.

The machine can become unstable in wet or

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BX23S, LA340, BT603

thawing conditions and these conditions may collapse under the weight of the machine and may cause tipping-over of the machine.

• Never operate the machine or any equipment while under the influence of alcohol or other drugs, or while fatigued.

• When leaving the machine unattended, be sure to lower the backhoe to the ground. Set the parking brake, then shut the engine off and remove the key.

3. Precautions of the backhoe while driving the tractor on the road

• Raise and center the boom, close the dipperstick, curl the bucket, and lock the boom before transporting the machine.

• Check the local codes or regulations that may apply to tractor, loader, and backhoe operation on public streets or highways, before transporting or traveling of the machine. Use the slow-moving-vehicle (SMV) emblem and warning flashers as required.

4. Precautions for servicing the backhoe

suspected leaks. Use a piece of cardboard or wood. If injured by escaping fluid, see a doctor at once. Serious infection or allergic reaction will develop if proper medical treatment is not administered immediately.

• Do not tamper with any setting of the pressure of the control valve and the relief valve of the backhoe. The pressure of the relief valve is preset at the factory. Changing the setting of the pressure of the relief valve can cause overloading of the backhoe and the tractor, and serious personal injury or death may result.

• Do not modify the backhoe for any reason. Modifying the backhoe can cause an unstable condition of combination of the tractor, the loader, and the backhoe, and serious personal injury or death may result.

• Before disconnecting the hydraulic lines, relieve all hydraulic pressure by moving the controls.

• Always use personal protection device such as safety goggles and ear protection when servicing or repairing the machine.

• Lower the backhoe to the ground and shut the engine off before servicing of the backhoe.

• When servicing or repairing pins in cylinder ends, bucket, and so on, always use a brass drift and hammer. Failure to service or repair pins using a brass drift and hammer could result in injury from flying metal fragments.

• To avoid serious personal injury, keep clear of working area of the backhoe.

• When servicing or checking the backhoe underneath, do not get under the machine while it is being held with only the bucket, backhoe, or stabilizers. Securely support the machine with jack stands.

• For your safety, do not work under any hydraulically supported machine elements. Hydraulically supported machine elements can settle, suddenly leak down, or be accidentally lowered.

• Escaping hydraulic fluid under pressure can obtain sufficient force to penetrate the skin, which cause serious personal injury. Before applying pressure to the hydraulic system, be sure that all connections are tight and that all lines, the pipes and the hoses are not damaged. Hydraulic fluid escaping from a very small hole can be almost invisible. Do not use hands to search for

SAFETY LABELS

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1. Safety labels of the tractor

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2. Safety labels of the loader

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3. Safety labels of the backhoe

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4. Care for safety labels

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• Keep the safety labels clean and free from obstructing material.

• Clean the safety labels with soap and water, and dry the safety labels with a soft cloth.

• Replace damaged or missing safety labels with new safety labels from your local KUBOTA Dealer.

• If a component with safety label(s) attached is replaced with new component, make sure that new safety label(s) is (are) attached in the same location(s) as the replaced component.

• Attach new safety labels by applying on a clean, dry surface and pressing any bubbles to outside edge.

DEALER SERVICE

BX23S, LA340, BT603

SERVICING OF TRACTOR, LOADER, AND BACKHOE

DEALER SERVICE

dealer is knowledgeable of your new tractor,

Your loader, and backhoe and desires to help you get the most value from them. After reading this manual thoroughly, you will find that you can perform some of the regular maintenance yourself. However, when your tractor, loader, and backhoe need parts or major service, be sure to see your KUBOTA Dealer. For service, contact the KUBOTA Dealership from which you purchased your tractor or your local KUBOTA Dealer. When in need of parts, be prepared to give the your dealer the serial number of the tractor, the engine, the loader, and the backhoe. Locate the serial numbers now and record them in the space provided.

• Concerning the tractor and loader, the reference to left hand and right hand used in this manual refers to the position when you are standing at the rear of the unit and facing forward.

• Concerning the backhoe, the reference to left hand and right hand used in this manual refers to the position when you are seating at the operator's seat at the backhoe position and facing rearward of the tractor.

Tractor

(1) Tractor identification plate (2) Tractor serial number

Type Serial No.

Tractor BX23S

ROPS

Engine D902

Loader LA340 and LA340S

Backhoe BT603

Date of Purchase

Name of Dealer

(To be filled in by purchaser)

(3) ROPS identification plate

(ROPS serial No.)

(4) Engine serial number

SERVICING OF TRACTOR, LOADER, AND BACKHOE

BX23S, LA340, BT603

DEALER SERVICE

Loader

operator's manual even if it is within the warranty period.

2. Scrapping the tractor and its procedure

To put the tractor out of service, correctly follow the local rules where you scrap it. If you question the tractor, consult your local KUBOTA Dealer.

and regulations of the country or territory

(1) Loader serial number [A] Boom RH inside

NOTE :

• The loader serial number label (5) is attached to the inside of the boom.

Backhoe

(1) Backhoe serial number

1. Warranty of the tractor

This tractor is warranted under the KUBOTA Limited Express Warranty, a copy of which may be obtained from your selling dealer. No warranty shall, however, apply if the tractor has not been used according to the instruction given in the

+ 148 hidden pages

Kubota BX23S, LA340, BT603 Operators Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

DEALER SERVICE

SERVICING OF TRACTOR, LOADER, AND BACKHOE

2. Scrapping the tractor and its procedure

1. Warranty of the tractor