Kubota KX027 Operating Instructions Manual
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Kubota KX027 Operating Instructions Manual

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COMPACT EXCAVATOR
MODEL
KX027-4
KX030-4
RG268-8135-6
KX027-4 - Valid from serial no. 52158
KX030-4 - Valid from serial no. 50740
OPERATING INSTRUCTIONS
- Original -
GB
01/2019

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Summary of Contents for Kubota KX027

  • Page 1 COMPACT EXCAVATOR MODEL KX027-4 KX030-4 KX027-4 - Valid from serial no. 52158 KX030-4 - Valid from serial no. 50740 OPERATING INSTRUCTIONS RG268-8135-6 - Original - 01/2019...
  • Page 2 "Duties, liability and warranty" section (page 13). This documentation neither extends nor re- stricts the contractual warranty. KUBOTA Baumaschinen GmbH reserves the right to change the information contained in this document with re- spect to future technical development without altering the basic characteristics of the excavators described herein and without amending this document.

  • Page 3: Table Of Contents

    Tables CONTENTS Abbreviations ............................7 General symbols ............................. 8 GENERAL INFORMATION ......................9 Foreword ..............................9 EC Declaration of Conformity ......................10 Date of issue of the operating instructions ..................10 Operating personnel ..........................10 Location of the operating instructions....................11 Spare parts.............................
  • Page 4 Tables Other equipment to be found on the machine ..................55 Main battery............................55 Battery isolator............................ 55 Return change valve for direct return flow..................55 Tank filler neck and fill level monitor....................56 Main fuses ............................56 Rear view mirror ..........................56 Heating and ventilation (cab version) ....................
  • Page 5 Return change valve for direct return flow ..................103 Relieving pressure from the hydraulic system ................104 Releasing pressure from the auxiliary ports (KX027-4 HI, KX030-4 HI)........105 Placing out of operation ........................107 Operating other equipment at the operator's place ................. 108 Operating the heating system (cab version) ..................
  • Page 6 Tables Skilled personnel maintenance chart....................140 Recommended lubricants........................142 Make the maintenance points accessible ..................144 Opening/closing the engine compartment cover ................144 Opening/closing the side cover ......................144 Opening and closing the left service cover..................145 Opening/closing the right ventilation grille ..................145 Maintenance work for the operator....................
  • Page 7 Max. lifting capacity when rotating up to 360° ................. 179 ACCESSORIES ..........................189 KUBOTA rotary beacon ........................189 KUBOTA pipe safety valve ......................... 189 KUBOTA overload warning system....................190 KUBOTA quick coupling systems and attachments................ 190 KUBOTA bucket accessories......................190 RG268-8135-6 01/2019...
  • Page 8 Tables RG268-8135-6 01/2019...

  • Page 9: Abbreviations

    Tables Abbreviations 1/min revolutions per minute kilonewton percent kilovolt ° degrees kilowatt °C Degrees Celsius litre Ampere l/min litres per minute acc. according noise level operator's place American Petroleum Institute measured sound power level approx. approximately metre ASTM American Society for Testing and Materials m/s²...

  • Page 10: General Symbols

    Tables General symbols Warning light Swivel boom (left) Fuel indicator Swivel boom (right) Engine oil indicator Dozer up Charge indicator Dozer down Glow indicator Lever direction Hydraulic oil Control lever direction Travel speed Rotary beacon Low speed Display selector switch Forward travel Auxiliary port indicator Backward travel...

  • Page 11: General Information

    The data in the operating instructions apply for all models. Information pertaining solely to the equipment variant high-spec is labelled with (KX027-4 HI or KX030-4 HI). Information pertaining to optional equipment is labelled with (optional). Differences are highlighted (e.g. cab version or KX027-4, KX030-4) The terms "front"...

  • Page 12: Ec Declaration Of Conformity

    General information EC Declaration of Conformity With the EC Declaration of Conformity, KUBOTA Baumaschinen GmbH certifies that the excavator complies with any applicable standards and regulations valid at the time it was placed on the mar- ket. The CE conformity marking is located on the type plate and indicates compliance with the reg- ulations.

  • Page 13: Location Of The Operating Instructions

    General information Location of the operating instructions The operating instructions must always be kept on the excavator. If the operating instructions have become illeg- ible due to continuous use, the owner (operator) must order a replacement from the manufacturer. A tray (1) for the operating instructions is located on the front side of the seat console below the cover plate.

  • Page 14: Spare Parts

    Serial # of the excavator and year of construction (see type plate)  Designation/type of spare part (see original KUBOTA spare parts catalogue)  Part number of the spare part (see original KUBOTA spare parts catalogue)  Quantity  Customer number ...

  • Page 15: Safety Rules

    Safety rules SAFETY RULES Basic safety instructions The EC Use of Work Equipment Directive (2009/104/EC) from 16/09/2009 applies to the operation of the  aforementioned excavator. The information in these operating instructions applies for maintenance and repairs.  National rules and regulations apply where applicable. ...

  • Page 16: Safety Symbols

    Safety rules It is the responsibility of the owner to ensure that The safety rules are observed (page 13)  Unapproved use (page 15) and unauthorised operation are prevented  The excavator is used properly (page 15) and is operated in accordance with the contractual conditions of ...

  • Page 17: Approved Use

    Safety rules Approved use The excavators specified in these operating instructions may only be used for loosening, excavating, lifting, trans- porting and dumping soils, rocks and other materials, as well as for work with the dozer or with a breaker. The load may be transported largely without driving the excavator.

  • Page 18: Special Duties Of The Owner

    Disposal must be undertaken in an appropriate way, according to legally prescribed pollution control and safety regulations. If you have questions about the proper disposal or storage of refuse and toxic waste, contact your KUBOTA dealer or a local waste management contractor.

  • Page 19: Noise Emission And Vibration

    Clean danger, warning and safety labels with soap and water and dry with a soft, clean cloth.  Replace damaged or missing danger, warning and safety labels with new ones from your KUBOTA dealer.  If a component with glued-on danger, warning and safety labels is replaced with a new part, make sure that ...
  • Page 20 Safety rules Code #: RG158-5727-0 Mortal danger by crushing! Low safe distance to the excavator and to obstacles can prevent an emergency exit from the danger zone. Crushing by excavator results in severe injury or death. Do not enter the manoeuvring area. ...
  • Page 21 Safety rules Code #: RG158-5785-0 Risk of burns from hot components! Surfaces can be hot and lead to burns. Do not touch hot parts, such as exhaust muffler, etc.  Code #: RG158-5754-0 Risk of fire from hot components! Escaping liquids can get onto hot components and catch fire. Before working on the engine, please read the operating instruc- ...
  • Page 22 Safety rules Code #: RG158-5722-0 Mortal danger from moving excavator! A low safe distance to the boom can impede an emergency exit from the danger zone. Being crushed by the boom can result in severe inju- ry or death. Do not remain within the swinging range of the boom. ...
  • Page 23 Safety rules Code #: RG268-5749-0 Max. lifting capacity when rotating up to 360° KX027-4 (cab) Code #: RG468-5749-0 Max. lifting capacity when rotating up to 360° KX030-4 (cab) CW:250kg Code #: RG268-5748-0 Max. lifting capacity when rotating up to 360°...
  • Page 24 Safety rules Code #: RG268-5717-0 Caution! Risk of component damage! When using a wider or deeper bucket, take good care when swinging or retracting the front attachments to make sure that the bucket does not hit the cab. Read the Operating Instructions for the attachment. ...
  • Page 25 Safety rules Code #: RG308-5702-0 Risk of accidents due to incorrect operation! Improper operating can lead to damage to the excavator, to serious ac- cidents with a high risk of injury and death as a result. Please read the operating instructions before commissioning. ...
  • Page 26 Safety rules Code #: RG158-5734-0 Risk of injury when entering or leaving the machine! When entering or leaving the machine without a secure halt, you can slip and fall down. Do not jump up or down on the excavator.  Always hold the hand rail tightly with one hand.
  • Page 27 Safety rules Code #: RG268-5786-0 Danger due to electric current! Excess voltage can cause injuries while working on the electrical sys- tem. Before working on the electrical system, disconnect it from the pow-  er supply. Wear personal protective equipment. ...

  • Page 28: Safety Devices

    If the left control console (2) is raised completely with the control le- ver lock (1), then the hydraulic functions of the following controls will be locked: Function KX027-4 KX027-4 HI KX030-4 KX030-4 HI Auxiliary port pedal  Boom swing pedal ...

  • Page 29: Protective Structure Canopy And Cab

    When using a hydraulic hammer or other attachment for demolition work where material (e.g. asphalt) is removed and can uncontrollably sputter away, a gravel guard is recommended for protection. If a front protective grid is required, a KUBOTA gravel guard (accessory) can be mounted. RG268-8135-6...

  • Page 30: Emergency Hammer

    Safety rules Emergency hammer In case of an accident where the excavator cab door and windows can not be opened, the operator can break the window panes with the emergency hammer (1). When breaking the window pane, close your eyes and STOP cover them with an arm.

  • Page 31: Fire Protection

    Safety rules Fire protection The excavator components and attachments (in particular the engine and the exhaust system) reach high temperatures even under normal working conditions. An electric installation that is damaged or STOP not properly serviced may lead to flashovers and/or electric arcs. The following fire protection guide- lines may help you ensure the maintenance and efficiency of your equipment and minimise fire haz- ards.
  • Page 32 Safety rules RG268-8135-6 01/2019...

  • Page 33: Recovery, Loading And Transport

    Recovery, loading and transport RECOVERY, LOADING AND TRANSPORT Safety rules for recovery For recovery of the excavator, a towing vehicle of at least the same weight class as the excavator must be  used. A tow bar must be used for the recovery. If a tow rope is used, an additional vehicle must also be attached to ...

  • Page 34: Safety Rules For Transport

    Recovery, loading and transport Safety rules for transport The ramps must have a sufficient load-bearing capacity for bearing the weight of the excavator. They must  be placed securely on the transport vehicle and fastened. Support the loading area at the rear of the transport vehicle with sufficiently dimensioned supports. ...

  • Page 35: Recovery

    Recovery, loading and transport Recovery Adhere to the “Safety rules” chapter (page 13) and the STOP “Safety rules for recovery” section (page 31). A recovery is only allowed over a short distance and at walking speed (0.5 m/s ~ 1.0 m/s). Attach the tow bar or tow rope to the attachment point (1) on ...
  • Page 36 Recovery, loading and transport Attach the lifting gear with shackles to the lifting eyes (1) on  each side of the dozer. Attach the lifting gear with shackles to the lifting eyes (1) on  each side of the boom. As soon as the lifting gear is attached to the excavator, press ...

  • Page 37: Transport On A Flat Bed Trailer

    Recovery, loading and transport Transport on a flat bed trailer Adhere to the “Safety rules” chapter (page 13) and the “Safety rules for transport” section (page 32). STOP Do not turn or steer while driving up the ramps; if necessary, reverse the excavator and drive up STOP again after realigning it.
  • Page 38 Recovery, loading and transport Rotate swivel frame 180° until the front attachments face the  rear of the transport vehicle. For safe attachment, fully retract the arm and bucket and lower  the boom until the bucket linkages touch the loading area. Secure the chains and the dozer with wooden beams (2).

  • Page 39: Description Of The Excavator

    Description of the excavator DESCRIPTION OF THE EXCAVATOR Dimensions The dimensions of the models KX027-4 and KX030-4 can be found in the following figures and tables. RG268-8135-6 01/2019...
  • Page 40 Name Type Arm 1050 mm A = 1050 mm Arm 1100 mm A = 1100 mm Arm 1300 mm A = 1300 mm All dimensions in mm with original KUBOTA bucket and rubber crawlers. Subject to technical changes. RG268-8135-6 01/2019...

  • Page 41: Specifications

    The specifications do not implicate or guarantee the perfor- mance of a given engine. **** Only for equipment variant KX027-4 HI. RG268-8135-6 01/2019...
  • Page 42 Description of the excavator ***** These values are measured under specific conditions at maximum engine speed and can deviate, depending on the operating situation. RG268-8135-6 01/2019...
  • Page 43 The specifications do not implicate or guarantee the perfor- mance of a given engine. **** Only for equipment variant KX027-4 HI. ***** These values are measured under specific conditions at maximum engine speed and can deviate, depending on the operating situation.
  • Page 44 < 0.5 Idling m/s² RMS < 0.5 Prepared for operation with Original-KUBOTA-Löffel 65 kg. Machine weight, incl. operator 75 kg. *** The CO measurement is based on the check carried out for an engine representative of the engine family, using a designated check cycle under laboratory conditions.
  • Page 45 < 0.5 Idling m/s² RMS < 0.5 Prepared for operation with Original-KUBOTA-Löffel 65 kg. Machine weight, incl. operator 75 kg. *** The CO measurement is based on the check carried out for an engine representative of the engine family, using a designated check cycle under laboratory conditions.

  • Page 46: Identification Of The Excavator

    The product ID number PIN (5) can be used to identify the standard OPERATING MASS INCL. MAX. DRAW BAR PULL OPERATOR OF 75kg equipment KX027-4 and KX030-4 or the equipment variants POWER MAX. VERT. LOAD MANUFACTURED YEAR PRODUCT IDENTIFICATION NUMBER...

  • Page 47: Standard Equipment

    Description of the excavator Standard equipment This model includes the following standard equipment: Operating instructions  Spare parts catalogue  Protective cover  Filter wrench  Spare fuse (2x50 A)  Guarantee  Spare parts catalogue and guarantee can be kept together with the operating instructions(page 11). The filter wrench must be stowed in the tool compartment (1) below the seat.
  • Page 48 Description of the excavator RG268-8135-6 01/2019...

  • Page 49: Assembly And Functions

    Assembly and functions ASSEMBLY AND FUNCTIONS Component overview Swivel frame Boom cylinder Track frame Bucket Bucket linkage Operator's place Auxiliary port connectors Cab door Bucket cylinder Left service cover Drive sprocket Arm cylinder Crawler Boom Idler Working light (boom) Dozer Working lights (cab) Dozer cylinder Rear view mirror...

  • Page 50: Operator's Place

    Left control lever Reserve button (KX027-4 HI, KX030-4 HI) Reserve button (KX027-4 HI, KX030-4 HI) Rocker switch for auxiliary port 2 (KX027-4 HI, KX030-4 HI) Description of the components of the left control console Control lever lock To enter and leave the cab, the console must be raised by pulling up the control lever lock. The engine can only be started if the console is raised.

  • Page 51: Drive Levers And Control Pedals

    This button does not have a function, but can however be activated in order to control other accessories. Rocker switch for auxiliary port 2 (KX027-4 HI, KX030-4 HI) The rocker switch for auxiliary port 2 controls the oil flow to auxiliary port 2. Auxiliary port 2 can be controlled...

  • Page 52: Right Control Console

    Working light button Wrist rest Right control lever Horn switch Rocker switch for auxiliary port 1 (KX027-4 HI, KX030-4 HI) Potentiometer for auxiliary port 2 (KX027-4 HI, KX030-4 HI) Description of the components of the right control console Display and control unit The functions of the display and control unit are described in the "Display and control unit - description"...

  • Page 53: Display And Control Unit

    14. Horn switch Depressing the horn switch activates the horn. 15. Rocker switch for auxiliary port 1 (KX027-4 HI, KX030-4 HI) The rocker switch for auxiliary port 1 controls the oil flow to auxiliary port connector 1. Auxiliary port 1 can be controlled proportionally (infinitely variable).
  • Page 54 11. Servicing indicator The maintenance indicator lights up when a service period is due. 12. Auxiliary port indicator 1 (KX027-4 HI, KX030-4 HI) Depending on the operating mode, auxiliary port indicator 1 lights up or flashes if auxiliary port function 1 is switched on.

  • Page 55: Other Equipment At The Operator's Place

    Assembly and functions 17. Pre-glowing indicator The pre-glowing indicator lights up when switching the starter switch to the RUN position. When the indicator goes off, it is possible to start the engine. 18. Engine oil pressure indicator The engine oil pressure indicator lights up when the oil pressure is below the reference value. Other equipment at the operator's place Other equipment located at and around the operator's place is described below.

  • Page 56: Tool Compartment

    Assembly and functions Tool compartment The tool compartment (1) is located below the operator's seat be- hind a cover plate. Cup holder There is a cup holder (1) in the right control console. 12-V socket A 12-V electrical outlet (1) is located on the right-hand control con- sole for the purpose of connecting an external electric device.

  • Page 57: Other Equipment To Be Found On The Machine

    Assembly and functions Other equipment to be found on the machine Other equipment located on and around the machine is described below. Main battery The main battery (1) is located on the right side of the vehicle under the side cover. Battery isolator The battery isolator (1) can be used to cut off the main power circuit.

  • Page 58: Tank Filler Neck And Fill Level Monitor

    Assembly and functions Tank filler neck and fill level monitor The tank filler neck (2) is located under the side cover on the right of the machine. The fill level monitor (1) is located to the left of the tank filler neck and it indicates the fuel level when refuelling.

  • Page 59: Heating And Ventilation (Cab Version)

    Assembly and functions Heating and ventilation (cab version) Turning on and switching off of the heater fan and the air volume control is via the blower switch (1) on the right control console. Using the blower switch, air volume can be adjusted at two levels LO and HI, where level HI stands for max.

  • Page 60: Hydraulic Oil Tank

    Assembly and functions The heater valve (1) in the engine compartment regulates the sup- ply of hot water to the heat exchanger from the cooling cycle. Hydraulic oil tank The hydraulic oil tank contains the suction filter and the return filter. Oil fill opening for hydraulic oil Breather filter Hydraulic oil tank...

  • Page 61: Engine Compartment

    Assembly and functions Engine compartment The engine compartment (figure below) is positioned at the rear of the swivel frame; it is covered by a lockable hinged cover. Air filter Fuel filter Cooling fan Engine V-belt Oil dipstick Oil filler opening Muffler Alternator Coolant expansion reservoir...
  • Page 62 Assembly and functions RG268-8135-6 01/2019...

  • Page 63: Operation

    Operation OPERATION Safety rules for operation The safety instructions (page 13) must be followed.  The excavator may only be operated in accordance with the “Approved use” section (page 15).  The machine may only be operated by instructed or trained personnel (page 10). ...

  • Page 64: Safety For Children

    Operation Safety for children Children are normally attracted to machines and their operation. If children are in the vicinity of the machine and are not at a suitable distance and in the field of vision of the operator, this can lead to STOP serious accidents or even death of the children.

  • Page 65: Working In The Vicinity Of Overhead Power Lines

    Operation Working in the vicinity of overhead power lines When working with the excavator in the vicinity of overhead power lines and tram lines, a minimum distance as specified in the following table must be maintained between the excavator and its attachments and the power line. Rated voltage [V] Safe distance [m] up to 1 kV...

  • Page 66: Getting On The Excavator

    Operation Getting on the excavator Risk of injury when entering or leaving the machine! When entering or leaving the machine without a secure halt, you can slip and fall down. STOP - Do not jump onto or off of the excavator - Always hold the hand rail tightly with one hand - Pay attention to stepping safely Move the left control console (2) up as far as possible by pulling...

  • Page 67: Setting The Clock

    Operation Setting the clock Turn the starter switch to the RUN position.  Press menu button (2).  Press display selector switch (1) until the clock is selected on  the display (3). By pressing and holding of the display selector switch (1) the follow- ing are selected in this order: year, month, day, 12 or 24 hour indi- cator, hours and minutes for adjusting.

  • Page 68: Running In The Excavator

    Operation Running in the excavator During the first 50 hours of operation, the following points should be adhered to in all cases: Warm up the excavator at an average engine speed and with a low load; do not let it warm up at idling position. ...

  • Page 69: Dust Valve - Cleaning

    Operation Dust valve - cleaning Empty the dust valve (1) on the air filter cover (2) by pressing it  together several times. If it is very dirty, remove the air filter and clean it (page 154).  Engine oil level - check Pull out the oil dipstick (1) and wipe it with a clean cloth.

  • Page 70: Coolant Radiator And Oil Cooler - Check

    Operation Coolant radiator and oil cooler - check Walk-around inspection of coolant radiator (1) and oil cooler (2)  for tightness and dirt. If there is any dirt etc. on the radiators: Clean coolant radiator (1) and hydraulic oil radiators (2) from ...

  • Page 71: Exhaust System Leakage - Check

    Operation Exhaust system leakage - check Check the exhaust system for leaks and tightness (formation of cracks).  If the inspection is carried out when the engine is warm, there is a risk of burns in the exhaust system. STOP If the exhaust system is leaky or loose, the excavator may only be taken into operation after the defects are ...

  • Page 72: Bucket Bolt And Bucket Linkage Bolt - Grease

    Operation Bucket bolt and bucket linkage bolt - grease Start the engine (page 77).  Position arm and bucket as shown in the figure.  Stop the engine (page 79).  Lubricate all greasing points (see figure to the right) – see the ...

  • Page 73: Other Greasing Points - Grease

    Operation Other greasing points - grease Start the engine (page 77).  Lower the bucket and the dozer onto the ground. Stop the engine, remove the key. Refer to the "Operating  the controls during excavation work" section (page 88). Lubricate all greasing points with grease –...

  • Page 74: Fuel Level - Check

    Operation Fuel level - check The fuel gauge (1) indicates the relative amount of fuel in the tank. The less fuel that is left in the fuel tank, the lower the needle of the gauge. Turn the starter switch to the RUN position. ...

  • Page 75: Setting Up The Workplace

    Operation Setting up the workplace Opening and closing the cab door (cab version) Opening the cab door from outside Unlock the cab door at the door lock (3).  Open the cab door by pulling at the door handle (1) and lock the ...

  • Page 76: Opening And Closing The Windows (Cab Version)

    Operation Opening and closing the windows (cab version) Front window Always lock the front window. Do not stay in the cab and operate the excavator with the front window un- STOP locked. When opening the window, always keep both hands on the grips (2) to prevent injury by pinching or crushing.

  • Page 77: Adjusting The Operator's Seat

    Operation Adjusting the operator's seat Adjust the operator's seat so that fatigue-free and comfortable working is possible. It should be pos- sible to operate all controls safely. Horizontal seat adjustment (seat stand-off) Pull the horizontal seat adjustment lever (5) up and move the ...

  • Page 78: Rear View Mirrors Adjustment

    Operation Rear view mirrors adjustment Check that the rear-view mirrors (1) are positioned properly and, if necessary, adjust the mirrors until optimum visibility is ensured. Seat belt Buckle up the seat belt (1).  Check that the seat belt is fastened tightly. ...

  • Page 79: Operating The Excavator

    Operation Operating the excavator To operate the excavator safely, see the following sections. Safety instructions for starting the engine The excavator is equipped with an anti-theft system (page 122). When starting the excavator for the first time on a work day, carry out the pre-operational services (page 66).
  • Page 80 Operation If the bunch of keys contains metal parts, such as key rings or other keys, the engine might fail to start. If the control lever lock is not raised, the warning light (5) lights up yellow, the engine cannot be started. The pre-glowing indicator (1) lights up briefly.

  • Page 81: Stopping The Engine

    Operation The time (1) indicates the current time of day in hours and minutes. The speed indicator display indication (2) indicates the current en- gine speed. The hour of operation indicator (3) indicates the hours of operation of the excavator performed up to now, regardless of the engine speed.
  • Page 82 Operation If the engine oil pressure becomes too low during operation, the en- gine must be stopped immediately. The engine oil pressure indica- tor (1) lights up, the warning light (2) flashes red and the display message appears as in the figure on the right. (lit up) (flashing) If a fault occurs in the charging system during operation, the engine...
  • Page 83 Operation If the coolant temperature is too high, cool down the engine by changing into idle. The display message appears as in the figure on the right. Allow the machine to idle for five minutes before switching off the engine! (flashing) Check the level of the coolant in the expansion tank.

  • Page 84: Driving With The Excavator

    Operation Driving with the excavator Models KX027-4 HI and KX030-4 HI are equipped with an automatic switching mechanism controlled by the torque, which automatically shifts the drive engines from travel speed into the more comfort- able low speed, when driving at slower speeds with a heavy load or when turning, for example. How- ever, for safety reasons, shifting back up into travel speed must always be done manually using the travel speed button.
  • Page 85 Operation Approach overhangs and edges of ditches carefully as they  could cave in. Drive slowly downhill, do not allow the vehicle speed to in-  crease uncontrollably. Close the cab door (cab version).  When driving, the bucket should be approx. 200 to 400 mm (A) ...
  • Page 86 Operation Driving Push both drive levers forward simultaneously to drive the excavator straight ahead. Releasing the drive le-  vers stops the excavator immediately. To reverse the excavator, pull both drive levers back simultaneously. (A) Forward (B) Reverse (C) Straight ahead If the dozer is not in the front, as shown in the figure, but in the rear, the operation of the drive levers is ex- STOP...
  • Page 87 Operation Turning Turns are described for the forward direction of travel with the dozer at the front. If the dozer is posi- STOP tioned at the rear, the steering movements should be in the opposite direction. When making turns, be sure nobody is standing within the swing area of the excavator. STOP During driving Pull the left drive lever to neutral, leave the right drive lever...

  • Page 88: Driving Uphill And Downhill

    Operation Driving uphill and downhill Exercise extreme caution when driving up and down a STOP slope. Do not use the travel speed button. When driving on gradients, raise the bucket approx. 200 to  400 mm (A) above the ground (see figure). When driving on gradients, let the bucket slide over the ground ...

  • Page 89: Notes For Rubber Crawler Operation

    Operation Notes for rubber crawler operation Driving or turning on sharp objects or over steps causes exces-  sive wear on the rubber crawlers and will lead to breaking of the rubber crawler or cause the crawler running surface and the steel inserts to be cut.

  • Page 90: Operating The Controls During Excavation Work

    Operation Operating the controls during excavation work Always observe the following safety instructions when working with the excavator. STOP Breaking concrete or rocks with the bucket is prohibited.  Do not use the dropping action of the bucket for excavation. ...

  • Page 91: Operating The Dozer

    Operation Operating the dozer When working with the dozer, operate both drive le- vers with the left hand and the dozer control lever with the right hand. To lift the dozer, pull the dozer control lever (1) back.  To lower the dozer, push the dozer control lever forward. ...

  • Page 92: Operating The Boom

    Operation Operating the boom If the excavator is overloaded, the boom must be lowered until the load rests on the ground. To prevent personal injuries and damage to equipment, do not operate any other functions (e.g. moving the swivel frame). To raise the boom, pull the right control lever back (figure/ ).

  • Page 93: Operating The Arm

    Operation Operating the arm To dump the arm, push the left control lever forward (figure/ ).  To crowd the arm, pull the left control lever back (figure/ ).  The arm moves as shown in the figure. RG268-8135-6 01/2019...

  • Page 94: Operating The Bucket

    Operation Operating the bucket To crowd (digging) the bucket, move the right control lever to  the left (figure/ ). To dump (empty) the bucket, move the right control lever to the  right (figure/ ). When crowding the bucket, take care that the teeth do not hit the dozer.

  • Page 95: Swivelling The Swivel Frame

    Operation Swivelling the swivel frame No person is allowed to stand in the swivel area during STOP the movement. Swivel carefully to avoid any contact of the front at- tachments with adjacent objects. To turn anticlockwise, move the left control lever to the left ...

  • Page 96: Operating The Auxiliary Port

    Operation Operating the auxiliary port The auxiliary port serves for operating attachments. Only attachments approved by KUBOTA may be used. The attachments must be operated in accord- STOP ance with the operating instructions supplied with them. When using a breaker or other attachment for demolition work where material (e.g. asphalt) is re-...
  • Page 97 Operation Operating the auxiliary port (KX027-4, KX030-4) The auxiliary port pedal (1) can be protected against unintentional operating by turning the locking flap (2). If the auxiliary port pedal is not used, the locking flap must be folded in. When operating the right pedal part (figure/ ) there is an oil ...
  • Page 98 Operation Activating the auxiliary port function (KX027-4 HI, KX030-4 HI) The auxiliary port is used for hydraulic implements, such as a breaker. You can set the flow rate prior to operating the auxiliary port. See the “Flow rate setting” section (page 99) for details.

  • Page 99: One Way Hold Operation (Kx027-4 Hi, Kx030-4 Hi)

    Operation Operating auxiliary port 2 (KX027-4 HI, KX030-4 HI) The proportional control enables you to smoothly control the implement speed. Example: If you press the rocker switch halfway to the left, the implement moves at approximately half speed. The connectors for auxiliary port 2 and the rocker switch for auxiliary port 2 (5) are illustrated in the figure.

  • Page 100: Operating Modes (Kx027-4 Hi, Kx030-4 Hi)

    Operation Operating modes (KX027-4 HI, KX030-4 HI) Auxiliary port 1 is preset at the factory to allow four operating modes to be selected. Up to six operating modes can be preset. Whenever the auxiliary port button is pressed the operating mode changes by one level.

  • Page 101: Setting The Flow Rate (Kx027-4 Hi, Kx030-4 Hi)

    After the indication of the flow rates the selected mode of operation is indicated in the display once more. Setting the flow rate (KX027-4 HI, KX030-4 HI) Suppose the same implement has to be attached to a different excavator. Even when using identical flow rate set- tings for the other excavator, the working speed may differ.
  • Page 102 Operation Setting auxiliary port 1 Turn the starter switch to the RUN position.  Press menu button (2).  The display message appears as in the figure on the right.  Press display selector switch (1) until AUX is shown in the dis- ...
  • Page 103 Operation Press and hold the display selector switch (1) until the flow rate  setting changes to left AUX port. You can switch continuously between the left and right AUX port flow rate settings. After setting the flow rate for the operating mode selected, you can either switch to the next operating mode or exit the settings screen.
  • Page 104 Operation Setting the maximum flow rate Enable Auxiliary Port Auxiliary port (left and right)  (lit up) Flow rate setting (0 to 14) (flashing or lit up) (A) Press and hold the display selector switch. (B) Press and hold the menu button. RG268-8135-6 01/2019...

  • Page 105: Return Change Valve For Direct Return Flow

    Operation Return change valve for direct return flow According to the mode of operation of a given attachment, the return flow of the hydraulic oil must occur either via the control valve (indirect return flow) or directly to the hydraulic oil tank (direct return flow). The return flow is me- chanically switched by the change valve (see Figure 2 below).

  • Page 106: Relieving Pressure From The Hydraulic System

    Move control levers (3 and 4) several times to limit stop in all  directions. Press down on the auxiliary port pedal (KX027-4, KX030-4)  several times in both directions until you reach the limit stop. The hydraulic system has been depressurised.

  • Page 107: Releasing Pressure From The Auxiliary Ports (Kx027-4 Hi, Kx030-4 Hi)

    Operation Releasing pressure from the auxiliary ports (KX027-4 HI, KX030-4 HI) Lower front attachments and dozer completely.  Turn the starter switch to the STOP position.  Wait until the engine has come to a standstill.  Turn the starter switch to the RUN position.
  • Page 108 Operation Releasing pressure from auxiliary port 2 Rotate potentiometer (1) clockwise and set to maximum flow  volume. Press the rocker switch for auxiliary port 2 several times in both  directions. The auxiliary ports have been depressurised. RG268-8135-6 01/2019...

  • Page 109: Placing Out Of Operation

    Operation Placing out of operation Canopy and cab version Park the excavator in such a way that it cannot move and is secured against unauthorised use. STOP Drive the excavator onto level ground.  Extend the hydraulic cylinders as follows: ...

  • Page 110: Operating Other Equipment At The Operator's Place

    Operation Operating other equipment at the operator's place Operating the heating system (cab version) Open the engine compartment cover (page 144).  Open heater valve (1) by turning against the clock.  The heater valve should be always closed in summer. Close the engine compartment cover.
  • Page 111 Operation In dusty surroundings, the fresh air supply should be switched on in order to increase the air pressure inside the cab. This contributes to the fact that no dust penetrates into the cab. Lasting circulating air mode leads to overtiring of the operator! Circulating air mode for a longer period of time can lead to lack of oxygen and overheating inside the cab.

  • Page 112: Operating The Wiper/Washer System (Cab Version)

    Operation Operating the wiper/washer system (cab version) All cab models are equipped with a wiper/washer system.  Risk of personal injury! When you turn the wiper on while the windscreen is opened, it slides out of the mounting on the cabin STOP frame and can cause impact inside the cab.

  • Page 113: Operating The Interior Light (Cab Version)

    Operation Operating the interior light (cab version) Press the switch (2) to the ON position (B).  The interior light (1) is illuminated as long as the switch remains in this position. To switch off, press the switch (2) to the OFF position (A). ...

  • Page 114: Operating The Working Lights

    Operation Operating the working lights The starter switch is in the RUN position.  Press the working light button (1) to the ON position. The work-  ing lights on the cab are turned on. To switch off the working lights, press the button to the OFF po- ...

  • Page 115: Cold Weather Operation

    Operation Cold weather operation Operating the excavator at an ambient temperature below 5 °C is considered cold weather operation. Necessary preparations prior to the winter season If necessary, replace the engine oil and hydraulic oil with those of the viscosities specified for winter. ...

  • Page 116: Jump-Starting The Excavator

    Operation Jump-starting the excavator Only a vehicle or starting device with a 12 V power supply may be used. A voltage > 12 Volts leads STOP to serious damage to the excavator electronic system. When servicing a battery, always wear suitable protective gloves and eye protection. The operator must remain seated on the operator's place, the battery jumper cables must be con- nected by a second person.

  • Page 117: Operating In Emergency Situations

    Operation Operating in emergency situations In case of emergency, you can switch off the engine and lower the boom manually. Engine stop knob If the engine cannot be stopped with the key, it can be stopped man- ually. To stop the engine, pull the knob (1) until the engine stops. ...

  • Page 118: Maintenance

    Operation Maintenance Filling up the washer system Open the cap (1) of the washer system reservoir (2) and add  water or a cleaning agent. In winter, use a cleaning agent with antifreeze. Close the washer system reservoir cap.  Checking the antifreeze strength of the coolant Open the engine compartment cover (page 144).

  • Page 119: Refilling The Coolant

    Operation Refilling the coolant Open the engine compartment cover (page 144).  Open cover (2) of the coolant expansion reservoir (1) after en-  gine has cooled down. coolant, “Recommended lubricants” section  (page 142). Do not operate the cooling system with pure water (even in summer).

  • Page 120: Refuelling The Excavator

    Operation Refuelling the excavator When refuelling the excavator, smoking, an open flame, or other sources of ignition are not allowed. The danger zone has to be clearly marked with signs. A fire extinguisher must be kept at hand in the danger zone.

  • Page 121: Bleeding The Fuel System

    Operation The following signals are output: Interrupted signal  Tank is empty Periodic signal  Tank is being filled  Tank is full Continuous signal The signal breaks off completely if the flow rate is too low. As soon as there is enough fuel in the tank, the signal restarts.

  • Page 122: Fuse Layout Of The Fuse Box

    Observe the following fuse box layout! Check the component function after replacing the fuse. If the  fault persists, contact your KUBOTA specialist dealer. After finishing the work, install the cover on the fuse box and close the cover plate. ...

  • Page 123: Main Fuses

    Operation Main fuses Disconnect negative terminal of battery.  Open cover (1) of the main fuse box.  Take out defective main fuse and replace.  Fuse layout: 2  Main fuse (50 A) 3  Main fuse (50 A) 4 ...

  • Page 124: Replacing The Bucket

    Operation Replacing the bucket When replacing the bucket, make sure to wear eye protection, a helmet and protective gloves. STOP During attaching and detaching, chippings and burrs may appear on the bolts or bushings. These STOP may cause severe injuries. Never use your fingers for the alignment of the components (linkage, bucket, arm).

  • Page 125: Black (Individual) Key

     prevent the motor from starting. Only use the special KUBOTA key ring. Other key rings can lead to signal failures between the key and starter  switch, and the engine can possibly not start or a key registration cannot be performed.

  • Page 126: Registering A Black Key For The Machine

    Operation Registering a black key for the machine  Register a black key only under the following conditions: Make sure that there are no persons within the excavator's working area. It is essential to warn per- STOP sons in the vicinity of the excavator by briefly honking the horn. Make sure that all operational controls are in the neutral position.
  • Page 127 Operation Pull out the red key. The insert key indicator blinks. Insert black key into the starter switch. Do not turn the key at this point. If the key is in the RUN position, turn it back to the STOP position. After a short moment, the pull out key indicator blinks.
  • Page 128 Operation RG268-8135-6 01/2019...

  • Page 129: Troubleshooting

    In the POSSIBLE CAUSE column you will find the possible causes for the malfunction. The REPAIR column indi- cates the required remedial measure. If the malfunction cannot be fixed by the measure indicated in the REPAIR column, please consult your KUBOTA dealer. Safety rules for troubleshooting Adhere to the general safety rules (page 13) and the safety rules for operation (page 61).

  • Page 130: Troubleshooting: Operation

    Hydraulic hoses or connections are Must be replaced. Inform your leaking KUBOTA dealer. Auxiliary port function is not  Auxiliary port 1 (KX027-4 HI, Switch on auxiliary port function KX030-4 HI) is not working enabled (page 96). Display and control unit is set to...
  • Page 131 (page 167). Dirty radiator Clean radiator (page 68). Radiator cap (venting) is defective Replace it; consult your KUBOTA dealer if necessary. Engine oil level is too low Check the engine oil level, add en- gine oil if necessary (page 158).

  • Page 132: Troubleshooting: Display Indications

    If the machine develops a fault, one of the following messages will appear on the display. In the event of problems. please inform your KUBOTA dealer immediately. In order to resolve malfunctions related to the operation, use or maintenance of the exhaust purifica- tion system, implement the measures immediately in accordance with the troubleshooting table.
  • Page 133 No display (yellow) Oil pressure too The engine oil Stop the engine imme- Inform your pressure is too low. diately. The engine KUBOTA dealer im- may have developed mediately. a fault. (red) Overheating The machine is Allow the machine to...
  • Page 134 Preliminary measure Solution tion Lever lock system The electrical sys- The engine can be Inform your KUBOTA dealer  error tem in the control started but the ma- lever lock has de- chine cannot be set in immediately. veloped a fault.
  • Page 135 Troubleshooting RG268-8135-6 01/2019...
  • Page 136 Troubleshooting RG268-8135-6 01/2019...

  • Page 137: Maintenance

    Careful maintenance of the excavator will guarantee functional safety and a longer service life. Failure to perform the servicing will void the warranty and any liability on the part of KUBOTA. Only use spare parts that are recommended by the manufacturer. Non-approved spare parts of inferior quality or wrong classification result in an increased risk of accidents.

  • Page 138: Personnel Requirements

    The maintenance interval indicator can only be reset by hand. If the maintenance interval indicator has to be replaced because of a defect, the meter is set back to "0". Ask your KUBOTA dealer about this. RG268-8135-6 01/2019...
  • Page 139 Maintenance RG268-8135-6 01/2019...

  • Page 140: Operator Maintenance Chart

    Maintenance Operator maintenance chart Hours of operation indicator Mainte- Check item Tasks nance in- Page 100 150 200 250 300 350 400 450 500 tervals Walk-around inspection Check Daily Dust valve Cleaning Daily Engine oil level Check Daily Coolant level Check Daily Coolant radiator and oil...
  • Page 141 Maintenance Hours of operation indicator Mainte- Check item Tasks nance in- Page 550 600 650 700 750 800 850 900 950 1000 tervals Walk-around inspection Check Daily Dust valve Cleaning Daily Engine oil level Check Daily Coolant level Check Daily Coolant radiator and oil Check Daily...

  • Page 142: Skilled Personnel Maintenance Chart

    1.) Change 1000 h Pilot circuit filter Change 1000 h Fuel injection -  Check Please contact your KUBOTA dealer. 1500 h fuel injector pressure Oil in idler and track roller Change Please contact your KUBOTA dealer. 2000 h Alternator and starter motor Check Please contact your KUBOTA dealer.
  • Page 143 1000 h  Pilot circuit filter Change 1000 h Fuel injection - fuel injector Check Please contact your KUBOTA dealer. 1500 h pressure Oil in idler and track roller Change Please contact your KUBOTA dealer. 2000 h Alternator and starter motor Check Please contact your KUBOTA dealer.

  • Page 144: Recommended Lubricants

    Maintenance Recommended lubricants Recommendation Filled at the factory Note Ambient temper- Quality stand- Viscosity Brand Type ature conditions In winter and/or When diesel fuel with SAE 10W at low tempera- a high sulfur content SAE 20W tures (between 0.50 % and 1.00 %) is used, the engine oil and engine oil filter must be re-...
  • Page 145 Maintenance Recommendation Filled at the factory Note Ambient temper- Quality stand- Viscosity Brand Type ature conditions For preparing the ex- cavator for use in win- ter, fill the fuel tank with winter diesel and EN 590 allow the engine to Fuel** ASTM D975 run for a few minutes.

  • Page 146: Make The Maintenance Points Accessible

    Maintenance Make the maintenance points accessible Opening/closing the engine compartment cover Insert the key in the lock (1) of the engine compartment  cover (3) and turn it clockwise. Pull the handle (2) and swing the engine compartment cover  completely to the left.

  • Page 147: Opening And Closing The Left Service Cover

    Maintenance Make sure that the catch (1) has snapped into place properly. If the engine cover is unexpectedly slammed STOP shut, for example by another person or by the wind, serious injury could result. To close, lift the catch (1) out of the locking mechanism (2) and ...

  • Page 148: Maintenance Work For The Operator

    Maintenance Maintenance work for the operator Adhere to the instructions for regular servicing to keep the excavator in good condition. Every 50 hours of operation Fuel tank - drain The drain valve (1) for draining the fuel tank is located underneath the swivel frame, at the back right.

  • Page 149: Battery Service

    Maintenance Battery service The battery can become damaged or may explode if the following instructions are not observed. Reg- ular maintenance can extend the life cycle of the battery considerably. STOP - Never charge or use the battery when the battery electrolyte level is below the minimum mark. - Check the battery regularly.

  • Page 150: Battery - Change

    Maintenance Make the battery accessible.  Check the electrolyte level in the battery, adding distilled water if required.  When disconnecting and connecting the battery, always observe the specified order  Risk of short STOP circuit. Remove the negative terminal cover and take off the cable clamp. Move the clamp to the side so as to avoid ...

  • Page 151: Swivel Gear - Grease

    Maintenance Swivel gear - grease Fill grease through the grease nipple (1) with a grease gun.  Grease at each 90° position of the swivel gear. Fill a total of approx. 50 g of grease (approx. 20 shots with the grease gun). Refer to the "Recommended lubri- cants"...

  • Page 152: Crawler Tension - Check

    Maintenance Crawler tension - check If the crawlers are too tight, wear is increased. If the crawlers are too loose, wear is increased and the crawlers may come off. The crawler seam (1) is half way between the idler and sprocket. ...

  • Page 153: Crawler Tension - Adjust

    Maintenance Crawler tension - adjust Tightening the crawlers Remove the crawler tensioner cover (1).  Position the grease gun on the grease nipple (2).  Pump the grease gun until the specified crawler tension is ob-  tained. Loosening the crawlers Loosen the pressure valve (3) carefully.
  • Page 154 Maintenance Empty the cup (5) and clean with clean diesel fuel.  Check filter (1) for excessive dirt; replace it if necessary.  Replace the oil ring (4) and lubricate it with diesel fuel.  Assemble the components 1 to 6 in this exact order. ...

  • Page 155: Every 200 Hours Of Operation

    Maintenance Every 200 hours of operation Swivel bearing - grease Fill grease through the grease nipple (1) with a grease gun.  Grease at each 90° position of the swivel bearing. Us- ing the grease gun, apply 5 shots at every position. Refer to the "Recommended lubricants"...

  • Page 156: Air Filter Element - Check/Clean

    Maintenance Clean the filter (1) with compressed air in direction "A", oppo-  site the normal direction of flow. Take care not to damage the filter when installing it. When using a damaged filter, dirt will get into the heat- er assembly and lead to considerable damage there.

  • Page 157: Coolant Hoses And Hose Clamps - Check

    Maintenance Coolant hoses and hose clamps - check Only carry out inspections when engine is cold, otherwise there is a risk of burns! STOP Open the engine compartment cover (page 144).  Inspect all coolant hoses (1) on the engine and to the radiator ...

  • Page 158: Servicing By Skilled Personnel

    Maintenance Servicing by skilled personnel Every 250 hours of operation V-belt - adjust Open the engine compartment cover (page 144).  Check the V-belt (1) (page 68).  The V-belt tension is set as follows: Loosen the fastening screw (2). ...

  • Page 159: Every 500 Hours Of Operation

    Maintenance Every 500 hours of operation Engine oil and oil filter - change To perform the following tasks, the dozer and boom must be positioned in the forward direction of travel. The engine oil change must be carried out while the engine is warm. Caution: the engine oil and the oil filter are very hot ...

  • Page 160: Engine Oil - Fill

    Maintenance Engine oil - fill Filling capacity (with oil filter): 4.5 litres Remove the oil filler cap (1) and top up engine oil. See the  "Recommended lubricants" section (page 142). Screw in the oil filler cap.  Start the engine (page 77). The engine oil pressure indicator ...

  • Page 161: Fuel Filter Cartridge - Change

    Top up oil as described in the "Recommended lubricants" sec-  tion (page 142). The oil level is the lower edge of the thread (1). Capacity: KX027-4 0.35 litres KX030-4 0.60 litres Refit the oil filler plug and the set screw with a new sealing ring ...

  • Page 162: Return Filter - Change

    Maintenance Return filter - change Pay attention to utmost cleanliness when servicing the hydraulic system. This service may only be carried out after the hydraulic STOP oil has cooled down. Open the side cover (page 145).  Unscrew the breather filter (1) from the cap (2). ...

  • Page 163: Every 1000 Hours Of Operation

    Maintenance Every 1000 hours of operation Hydraulic oil - fill/change Pay attention to utmost cleanliness when servicing the hydraulic system. This service may only be carried out after the hydraulic oil has cooled down. The temperature of the STOP hydraulic oil should be between 10 °C and 30 °C. The suction filter must be changed along with the hydraulic oil.

  • Page 164: Hydraulic Oil - Fill

    Maintenance Hydraulic oil - fill Filling quantity with oil change: approx. 34 l Total hydraulic system capacity: 42 l Unscrew the breather filter (1) from the cap (3).  Insert a clean funnel with a strainer into the fill opening (2). ...

  • Page 165: Suction Filter - Change

    All pipe and hose lines of the heater must be checked for condition (cracks, bulging, hard spots) and tight fit.  If any defects are found during the inspection, please consult your KUBOTA dealer. Only trained personnel may work on the heater.

  • Page 166: In-Line Filter - Change

    Maintenance In-line filter - change Pay attention to utmost cleanliness when servicing the hydraulic system. The replacement procedures are explained with the LH control lever as an example; the RH control lever fil- ter replacement should be performed in the same manner.

  • Page 167: Air Filter Element - Change

    Maintenance Air filter element - change Risk of engine damage! The interior filter element (1) must remain installed while cleaning the air filter case (6). Otherwise, particles of dirt could enter the air intake duct while cleaning and damage parts of the injection sys- tem and engine.
  • Page 168 Maintenance Remove the screws (2).  Remove the LH side cover (1).  Put cleaning cloths in the working area under the pilot circuit fil-  ter. Remove the filter cup (4) from the filter head (1).  Remove the filter element (2) from the filter head. ...

  • Page 169: Every 2 Years

    Maintenance Every 2 years Coolant - change To perform the following tasks, the dozer and boom must be positioned in the forward direction of travel. Drain only when engine is cold, otherwise there is a risk of scalding! STOP Filling capacity Canopy Radiator 2.4 litres...
  • Page 170 Maintenance Remove the coolant expansion reservoir (1) and drain it, clean-  ing it if necessary. Refit the reservoir. Dispose of old coolant according to the applicable en- vironmental protection regulations. Do not operate the cooling system with pure water (even in summer).

  • Page 171: Bolted Joints - Check

    Maintenance Bolted joints - check The table below contains the torques for nuts and bolts. These may only be tightened with a torque wrench. Miss- ing values can be requested from KUBOTA. Tightening torque for screws Nm (  4 T (4.6) 7 T (8.8)

  • Page 172: Tightening Torque For Hydraulic Hoses

    Maintenance Tightening torque for hydraulic hoses Wrench size Torque in Nm Hose size Thread 15-20 DN 4-1/8" M12x1.5 15-20 DN 6-1/4" M14x1.5 30-35 DN 8-5/16" M16x1.5 40-45 DN 10-3/8" M18x1.5 50-55 DN 13-1/2" M22x1.5 Are also valid for adaptor with premounted nut. Tightening torque for hydraulic pipes Wrench size Torque in Nm...

  • Page 173: Safety Inspection

    Safety inspection SAFETY INSPECTION All safety inspections are based on the national worker's protection regulations, safety regulations and technical specifications applicable to the country in which the machine is operated. The owner (operator) (page 13) should arrange for the safety inspections to be performed at specified intervals according to national rules and regulations.
  • Page 174 Safety inspection RG268-8135-6 01/2019...

  • Page 175: Taking Out Of Service And Storage

    Taking out of service and storage TAKING OUT OF SERVICE AND STORAGE If the excavator is taken out of service for up to six months, the measures before, during and after taking it out of service must be carried out as described below. If the vehicle is to be taken out of service for a period of over six months, contact the manufacturer for additional measures.

  • Page 176: Start-Up After Taking Out Of Service

    Taking out of service and storage Start-up after taking out of service If necessary, clean the excavator thoroughly (page 121).  Check the hydraulic oil for condensate water. Replace the oil if necessary (page 161).  Remove the grease from the piston rods of the hydraulic cylinders. ...

  • Page 177: Lifting Capacity Of The Excavator

    Lifting capacity of the excavator LIFTING CAPACITY OF THE EXCAVATOR Constructive calculation of lifting capacity The lifting capacity of the excavator is based on ISO 10567 and does not exceed 75 % of the static tipping  load or 87 % of the hydraulic lifting capacity of the machine. The lifting capacity is measured at the front bolt of the arm with the arm fully extended.

  • Page 178: Lifting Attachment

    Load suspensions (e.g. hooks) may only be welded on by suitably skilled personnel. For this type of work,  please contact your KUBOTA dealer. At every point of the implement or the boom, the lifting attachment must withstand a load of two-and-a-half- ...

  • Page 179: Load Suspension Device

    Lifting capacity of the excavator Load suspension device A load suspension device with all the characteristics listed below is required: The system must withstand a load two-and-a-half times its rated lifting load, regardless of the point at which  that load is applied. The system must be designed in such a way as to practically prevent any objects that have been lifted from ...

  • Page 180: Max. Lifting Capacity When Rotating Up To 360

    Lifting capacity of the excavator Lift point radius Lift point Lift point height Vertical axis Max. lifting capacity when rotating up to 360° KX027-4 (canopy) / arm 1050 mm and arm 1300 mm RG268-8135-6 01/2019...
  • Page 181 Lifting capacity of the excavator KX027-4 (cab) / arm 1050 mm and arm 1300 mm KX030-4 (canopy) / arm 1100 mm and arm 1300 mm CW:250kg Z3 Z3 RG268-8135-6 01/2019...
  • Page 182 Lifting capacity of the excavator KX030-4 (cab) / arm 1100 mm and arm 1300 mm CW:250kg Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL KX027-4 SPECIFICATION CANOPY VERSION ARM 1050 mm kN (t)
  • Page 183 Lifting capacity of the excavator Lifting capacity over front end, dozer up MODEL KX027-4 SPECIFICATION CANOPY VERSION ARM 1050 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500 3000 3500 [mm] 4000 3500 (0.64) 3000 (0.54)
  • Page 184 Lifting capacity of the excavator Lifting capacity over front end, dozer up MODEL KX027-4 SPECIFICATION CAB VERSION ARM 1050 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500 3000 3500 [mm] 4000 3500 (0.64) 3000 (0.56)
  • Page 185 Lifting capacity of the excavator Lifting capacity over front end, dozer up MODEL KX027-4 SPECIFICATION CANOPY VERSION ARM 1300 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500 3000 3500 4000 [mm] 4000 3500 3000 (0.39)
  • Page 186 Lifting capacity of the excavator Lifting capacity over front end, dozer up MODEL KX027-4 SPECIFICATION CAB VERSION ARM 1300 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500 3000 3500 4000 [mm] 4000 3500 3000 (0.39)
  • Page 187 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL KX030-4 SPECIFICATION CANOPY VERSION ARM 1100 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500...
  • Page 188 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL KX030-4 SPECIFICATION CAB VERSION ARM 1100 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500...
  • Page 189 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL KX030-4 SPECIFICATION CANOPY VERSION ARM 1300 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500...
  • Page 190 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL KX030-4 SPECIFICATION CAB VERSION ARM 1300 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT Mini- Maxi- 1500 2000 2500...

  • Page 191: Accessories

    The accessories approved for this excavator by the respective countries are described in the following segments. For further accessories, please contact your KUBOTA dealer or authorised retailer. Accessories from other manufacturers may only be fitted after prior written approval from KUBOTA. STOP Also see the "Approved use"...

  • Page 192: Kubota Overload Warning System

    Any manipulation can result in substantial personal injuries, even death, and is therefore strictly pro- STOP hibited. Manipulating and repairing the pipe safety valves is prohibited. They may only be replaced by your KUBOTA deal- er as a set. Note on use Check the pipe safety valve lead seal before using the excavator.
  • Page 193 Accessories RG268-8135-6 01/2019...

This manual is also suitable for:

Kx030-45215850740

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