Kubota U50-5 Operating Instructions Manual
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Kubota U50-5 Operating Instructions Manual

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COMPACT EXCAVATOR
GB
MODEL
U50-5
OPERATING INSTRUCTIONS
W9272-8135-1
- Original -
05/2020

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Алексей
May 28, 2025

Где находится блок управления в эксковаторе кубота U-50 и электроклапана на гидромолот

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1 comments:
Mr. Anderson
May 28, 2025

The location of the control unit and the solenoid valve for the hydraulic hammer in the Kubota U50-5 excavator is not specified in the provided context.

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Summary of Contents for Kubota U50-5

  • Page 1 COMPACT EXCAVATOR MODEL U50-5 OPERATING INSTRUCTIONS W9272-8135-1 - Original - 05/2020...
  • Page 2 Product identification number: Shipment date: These operating instructions only apply to the KUBOTA excavator U50-5, which comply with the following EC declaration of conformity (page 9). In addition, the machine’s product identification number must correspond to the following scope of appli- cation.

  • Page 3: Table Of Contents

    Hoisting the machine with a crane ......................39 Transport on a flat bed trailer ........................41 Description of the machine ......................43 Model overview ............................43 Model U50-5............................43 Dimensions.............................. 44 Dimensions U50-5..........................44 Specifications ............................46 Identification of the machine........................50 Product identification number......................
  • Page 4 Tables Drive levers and control pedals ......................56 Drive levers and control pedals – description .................. 56 Right control console .......................... 57 Description of the components of the right control console ............. 58 Keypad switch ............................ 60 Keypad switch description ....................... 60 Display..............................
  • Page 5 Tables Field of view............................. 93 Adjusting the rear view mirrors ......................94 Safety instructions for starting the engine ....................95 Starting the engine ..........................96 Start the engine in Cold-Weather Conditions ..................99 Stopping the engine ........................... 99 Observation of the displays after starting and during operation ............100 Checking error messages ........................
  • Page 6 Tables Operation during the winter season....................144 Jump-starting the machine ........................145 Operating in emergency situations ......................146 Engine emergency stop........................146 Manual lowering of the front attachments..................146 Filling up the washer system ......................... 147 Refuelling the machine .......................... 147 Refuelling the machine ........................
  • Page 7 Tables Fuel filter - change ........................... 191 Water separator - drain ........................192 Water separator - clean........................193 Water separator filter - change......................194 Fuel tank - drain ..........................195 Fuel lines and the air intake hoses - check ..................196 Return filter in the hydraulic oil tank - change ..................

  • Page 8: Abbreviations

    Tables Abbreviations 1/min revolutions per minute kilogramme percent km/h kilometre per hour ° degrees kilonewton °C degree Celsius kilovolt Ampere kilowatt acc. according litre American Petroleum Institute l/min litres per minute approx. approximately sound pressure level operator’s place ASTM American Society for Testing and Materials sound power level metre CECE...

  • Page 9: General Symbols

    Tables General symbols Warning light Swivel boom (left) Fuel indicator Swivel boom (right) Engine oil pressure indicator Dozer up Charge indicator Dozer down Glow indicator Control lever direction Hydraulic oil Control lever direction Fast speed Beacon Slow speed Auxiliary port enable switch Forward travel Working lights Backward travel...
  • Page 10 Tables Insert key indicator Dozer in floating position Pull out key indicator Overload warning indicator Lower control lever lock indicator Raise control lever lock indicator Auxiliary port indicator Start engine indicator Horn Controller Area Network indicator Please read the operating manual Return switch Wiper switch Acknowledge...

  • Page 11: General Information

    Should the EC declaration of conformity be lost, contact your local KUBOTA dealer. The CE marking is located on the type plate. If the machine is modified or retrofitted without the approval of the manufacturer, the safety of the machine may be affected, thus rendering the EC declaration of conformity invalid.
  • Page 12 Westendstrasse 199, D-80686 Munich, Germany KUBOTA CORPORATION Name and address of the 1-1-1, NAKAMIYA OIKE HIRAKATA manufacturer: OSAKA, 573-8573, JAPAN KUBOTA Baumaschinen GmbH Name and address of the Steinhauser Str. 100 authorized representative D-66482 Zweibrücken, Germany Mikio Taguchi, President, Name and address of the...

  • Page 13: Date Of Issue Of The Operating Instructions

    General information EC declaration of conformity radio equipment-manufacturer Hereby, ASAHI DENSO CO., LTD. declares that the radio equipment type [CZ106] is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://en.ad-asahidenso.co.jp/euro-compliance/ Date of issue of the operating instructions The date of issue of the operating instructions is printed on the bottom right of the front page of the book.

  • Page 14: Location Of The Operating Instructions

    Machine’s product identification number 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 required  Customer number ...

  • Page 15: Safety Rules

    Safety rules SAFETY RULES Basic safety instructions The EC machine utilization directive (2009/104/EC) dated 16/09/2009 applies for the operation of the afore-  mentioned machine. The information in these operating instructions applies for maintenance and repairs.  National rules and regulations apply where applicable. ...
  • Page 16 Safety rules Warranty and liability The scope, period and form of the warranty are set forth in the sales and delivery conditions of the manufacturer. The operating instructions valid at the time of delivery shall be the basis for any warranty claims arising from errors in the documentation, see the date of issue of the operating instructions (page 11).

  • Page 17: Safety Symbols

    Safety rules Safety symbols The following terms and hazard symbols are used in these operating instructions: Identifies important operating procedure information which may not be immediately evident to the op- erator. Identifies operating procedures which must be followed exactly to prevent damage to the machine or other property.

  • Page 18: Approved Use

    Safety rules Approved use The machines specified in this operator’s manual may only be used for to loose the ground, excavating, picking up, transporting and dumping soils, rocks and other materials, for work with the dozer or with a breaker. The load may be transported largely without driving the machine.

  • Page 19: 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 correct disposal or storage of refuse and toxic waste, contact your KUBOTA dealer or a local waste management contractor.

  • Page 20: Noise Emission And Vibration

    Safety rules Noise emission and vibration The values specified in this manual have been identified in the test cycle at an identical machine and are valid for a standard equipment machine. The determined values are shown in the Technical Data (page 46). Noise emission The noise levels were determined using the method of determining the guaranteed sound pressure level of ISO 4871 based on directive 2000/14/EC, appendix VI.

  • Page 21: Safety Labels On The Machine

    Clean safety labels with soap and water and dry with a soft, clean cloth.  Replace damaged or missing safety labels with new ones from your KUBOTA dealer.  If a component with glued-on safety labels is replaced with a new part, make sure that the new labels are ...
  • Page 22 Safety rules Code #: RB456-5722-0 Mortal danger by crushing! 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 #: RB419-5796-0 Not an attachment point for lifting gear. Code #: RC788-5725-0 Mortal danger by crushing! Low safe distance to the machine and to obstacles can prevent an emergency exit from the danger zone. Crushing by machine results in severe injury or death.
  • Page 24 Safety rules Code #: RD579-5738-0 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 #: RD579-5745-0 Risk of burns from hot components! Surfaces can be hot and lead to burns. Do not touch hot parts, such as exhaust muffler, ...
  • Page 25 Safety rules Code #: RB456-5795-0 Danger of injury from components under pressure! In the case of improper operating of the crawler tensioner, grease or the pressure valve can splash out under high pressure and lead to inju- Before working on the crawler tensioner, please read the operating ...
  • Page 26 Safety rules Code #: RB456-5786-0 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 27 Safety rules Code #: RD458-5738-0 Danger of cutting and crushing through rotating parts! The rotating fans can cut into limbs and the rotating belt drive can pull in and crush limbs. Switch off the engine before working in the engine room. ...
  • Page 28 Safety rules Code #: RD579-5736-0 Risk of fire from inflammable diesel fuel! Inflammatory vapours can occur in the fuel tank, which may go up in flames as a result of an ignition source. Do not use open flames in the vicinity of the fuel tank. ...
  • Page 29 Safety rules Code #: RD579-5755-0 Risk of being crushed due to narrow gap! The gap between the door and the counterweight is narrow. When fas- tening the cab door to the door stop or to the counterweight, there is a danger of the hands or fingers being crushed in the door crack.
  • Page 30 Safety rules Code #: RD839-5739-0 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 31 Safety rules Code #: RD479-5747-0 Max. lifting load during swivel operation is 360° 360 ° Z \ X 4.5 m 1440 1760 KX060-05_172 W9272-8135-1 05/2020...

  • Page 32: Safety Devices

    Safety rules Safety devices Before starting the machine, all safety devices must be installed properly and operational. Manipulating the safety devices is prohibited. Protective devices may only be removed after the machine is standing still and the engine is stopped ...

  • Page 33: Protective Structure 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 grille or a roof protective grille is required, a KUBOTA gravel guard (optional) can be installed.

  • Page 34: Pipe Safety Valve

    Any manipulation can result in substantial personal in- STOP juries, even death, and is therefore strictly prohibited. KX060-05_008 The manipulation and repair of the pipe safety valves is prohibited. They may only be replaced by your KUBOTA dealer as a kit. W9272-8135-1 05/2020...

  • Page 35: Overload Warning System

    When changing from rubber crawlers to steel crawlers, or from steel crawlers to rubber crawlers, or when modify- ing the length of the arm, please contact your KUBOTA dealer. The overload warning function must be enabled during any lifting operation to prevent personal inju- STOP ries and damage to equipment.

  • Page 36: Hazards Coming From The Hydraulic System

    Safety rules Hazards coming from the hydraulic system If hydraulic oil gets into the eyes, rinse them immediately with clear water and subsequently seek medical aid. Do not allow hydraulic oil to contact the skin or clothing. Skin parts which may have come in contact with hydraulic oil must be washed with water and soap immediately, if possible.
  • Page 37 Safety rules For attaching a fire extinguisher (1) two threads (2) have been inserted in the cab construction on the left side  behind the driver's seat. A fire extinguisher is not included in the basic equip- ment of the machine. A fire extinguisher, including its mounting bracket, can be mounted on board, if they weigh less than 10 kg.
  • Page 38 Safety rules W9272-8135-1 05/2020...

  • Page 39: Recovery, Loading And Transport

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

  • Page 40: Safety Rules For Transport

    Recovery, loading and transport Safety rules for transport Risk of accidents due to defective load safety device! STOP The following safety rules must be observed. Risk of accidents due to unapproved use of the machine! Driving the machine onto the transport vehicle without using ramps and with the help of the boom is STOP prohibited! Check whether the transport vehicle is designed for carrying the machine.

  • Page 41: Recovery

    Recovery, loading and transport Recovery Adhere to the safety rules (page 13) and the safety STOP rules for recovery (page 37). 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 42 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 machine, press cloths between lifting gear and machine to protect ...

  • Page 43: 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 38). STOP Mortal danger by crushing! Nobody is allowed in the loading area or in close proximity to that area while operating the machine STOP on the ramp and in the loading area, e.g.
  • Page 44 Recovery, loading and transport To secure the vehicle, use the tie-down points as illustrated in  the figure. Secure the machine in front of and behind the chains and the  dozer to prevent it from slipping, e.g. using wooden beams (2). Secure the machine using appropriate and labelled lashing ma- terial (1).

  • Page 45: Description Of The Machine

    Description of the machine DESCRIPTION OF THE MACHINE Model overview The excavator is available in the model series U50-5. Model U50-5 W9272-8135-1 05/2020...

  • Page 46: Dimensions

    Description of the machine Dimensions The dimensions of the model U50-5 can be found in the following illustrations including tables. Dimensions U50-5 W9272-8135-1 05/2020...
  • Page 47 3775 3370 2670 1010 4125 5850 2550 1960 5705 5355 1855 2400 Arm version Name Type Arm 1450 mm A = 1450 mm All dimensions in mm with original KUBOTA bucket and rubber crawlers. Subject to technical changes. W9272-8135-1 05/2020...

  • Page 48: Specifications

    Description of the machine Specifications Following are the specifications for these series. KUBOTA Excavator Model name U50-5 Type Rubber crawler Machine weight* 4890 Operating weight** 4965 Bucket  Volume (CECE) m³ 0.13 (KUBOTA) Width with teeth Vertical, water cooled 4-cycle...
  • Page 49 (ISO 2631-1:1997) Idling m/s² RMS < 0.5 Prepared for operation with original KUBOTA bucket 119 kg. Machine weight, incl. operator 75 kg. *** This CO measurement results from testing over a fixed test cycle under laboratory conditions a(n) (parent) engine representative of the engine type (engine family) and shall not imply or express any guarantee of the performance of a particular engine.
  • Page 50 Description of the machine KUBOTA Excavator Model name U50-5 Type Steel crawler Machine weight* 5020 Operating weight** 5095 Bucket  Volume (CECE) m³ 0.13 (KUBOTA) Width with teeth Vertical, water cooled 4-cycle Type diesel engine Model name D1803-CR-TE5-BH Displacement cm³...
  • Page 51 (ISO 2631-1:1997) Idling m/s² RMS < 0.5 Prepared for operation with original KUBOTA bucket 119 kg. Machine weight, incl. operator 75 kg. *** This CO measurement results from testing over a fixed test cycle under laboratory conditions a(n) (parent) engine representative of the engine type (engine family) and shall not imply or express any guarantee of the performance of a particular engine.

  • Page 52: Identification Of The Machine

    Description of the machine Identification of the machine The type plate of the machine is located at the front of the swivel frame. The owner should enter the stamped data in the field on the back of the front cover. CE label Max.

  • Page 53: Engine Number

    Description of the machine Engine number The engine number (1) is affixed to the engine block. Standard equipment This model has the following standard equipment: Operating instructions with protective cover  Spare parts catalogue  Filter wrench  Grease gun ...
  • Page 54 Description of the machine W9272-8135-1 05/2020...

  • Page 55: Assembly And Functions

    Assembly and functions ASSEMBLY AND FUNCTIONS Component overview Swivel frame Boom cylinder Track frame Bucket Rear view mirror Bucket linkage Operator’s place Auxiliary port connectors Cab door Bucket cylinder tank filler neck Drive sprocket Arm cylinder Crawler Boom Front idler Working light (boom) Dozer Working lights (cab)

  • Page 56: Operator's Place

    Assembly and functions Operator’s place The operator’s place is located in the middle of the cab. It includes the following control elements: Left control console Drive levers and control pedals Right control console Operator’s seat KX060-05_021 Left control console The left control console includes the following components: Control lever lock Rocker switch for auxiliary port 2 (optional) Wrist rest...

  • Page 57: Description Of The Components Of The Left Control Console

    Assembly and functions 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. The hydraulic functions of the control lever, the drive lever, the boom swing pedal, the dozer control lever and the auxiliary port are locked.

  • Page 58: Drive Levers And Control Pedals

    Assembly and functions Drive levers and control pedals Drive levers and control pedals include the following components: Left and right drive levers Boom swing pedal Pedals for the left and right crawler Drive levers and control pedals – description Left and right drive levers With the drive levers the machine can be driven forwards and backwards and also turned.

  • Page 59: Right Control Console

    Assembly and functions Right control console The right-hand control console contains the following components: Rocker switch for the auxiliary port 1 Horn switch Auxiliary port enable switch Right control lever One way hold switch Travel speed switch Dozer control lever Heating and air-conditioner control (optional) Inhibit switch Potentiometer for the adjustment of the engine speed...

  • Page 60: Description Of The Components Of The Right Control Console

    Assembly and functions Description of the components of the right control console Rocker switch for the auxiliary port 1 The rocker switch for auxiliary port 1 controls the oil flow to auxiliary port 1. Turning the rocker switch to the left causes the oil to flow towards the connector on the left-hand side of the arm.
  • Page 61 Assembly and functions Inhibit switch The inhibit switch (DPF = diesel particle filter) is used to lock and release the automatic particle filter regen- eration. The particle filter regeneration must be locked under certain working conditions. For example, when working close to people, animals, plants and/or flammable materials, the particle filter regeneration should be locked.

  • Page 62: Keypad Switch

    Assembly and functions Keypad switch The keypad switch and the dial switch contains the following switch- Rotary beacon switch Overload warning switch Camera switch Travel alarm cancel switch Washer switch Wiper switch AUTO IDLE switch Working light switch Return switch Menu switch Jog dial and Enter key KX060-05_028...

  • Page 63: Display

    Assembly and functions Display The display contains the following displays and indicators: 2 2 3 3 4 4 5 5 6 6 Warning light Engine oil pressure indicator Charge indicator Seat belt indicator 02 1 / 0 2019 Maintenance indicator DPF-related indicator Travel speed indicator Menu bar...

  • Page 64: Other Equipment To Be Found At The Machine

    Assembly and functions Other equipment to be found at the machine Other equipment located at and around the machine is described below. Wiper/washer system The front window is provided with a wiper/washer system. The sys- tem is operated with the washer switch (1) and wiper switch(2). KX060-05_031 The washer system reservoir (3) is located on the right vehicle side under the side cover.

  • Page 65: Fuse Box

    Assembly and functions Fuse box The fuse box (1) is located behind the right-side cover in the cabin. KX060-05_034 Tool compartment The tool compartment (1) is located behind the left swivel cover. KX060-05_035 Main battery The main battery (1) is located on the right side of the vehicle under the side cover.

  • Page 66: Battery Isolator

    Assembly and functions Battery isolator The battery isolator (1) can be used to cut off the main power circuit. The battery isolator is located on the right vehicle side under the side cover. Main fuses The main fuses (1) of the machine are situated above the battery. W9272-8135-1 05/2020...

  • Page 67: Cup Holder

    Assembly and functions 12-V electrical outlet A 12-V electrical outlet (1) for the connection of an external electric device is located on the right front inside the cabin. KX060-05_040 Cup holder The cup holder is located on the right side in the cabin. KX060-05_041 Tank filler neck and fill level monitor The tank filler neck (1) and the fill level monitor (2) are located below...

  • Page 68: Rear View Mirror

    Assembly and functions Rear view mirror The rear view mirror (1) allows visibility down towards the rear of the machine. The front rear view mirrors (2) allows visibility to the rear. The rear view mirrors can be adjusted for optimum visibility of the respective areas.
  • Page 69 Assembly and functions The air is drawn in through an interior air filter, either as fresh air via the intake (1) to the left of the cab or as re-circulated air in the cab. The lever (2) can be used to switch the air intake between re-circu- lated air (A) and fresh air (B).
  • Page 70 Assembly and functions The air is conducted via the heat exchanger and/or the evaporator of the air-conditioner assembly (optional) to the air nozzles. A  Windshield B  Operator C  Leg room D  Side window E  Rear window Be careful not to allow foreign substances to come into the ...

  • Page 71: 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. Coolant expansion reservoir Oil dipstick Filter indicator Oil filler opening V-belt cover Fuel filter Alternator Muffler / particle filter Oil filter...

  • Page 72: Hydraulic System

    Assembly and functions Hydraulic system All controls enable the functions via a hydraulic oil pilot control circuit. The accumulator allows the boom and the arm to be lowered in case of an engine failure. The hydraulic oil tank contains the suction filter and the return filter. Hydraulic oil tank Control valve Plug...

  • Page 73: Radiator And Condenser

    Assembly and functions Radiator and condenser The radiator and condenser for the cooling circuits and the air-conditioner system are under the right side cover. Coolant radiator Fuel cooler Hydraulic oil radiator Condenser (air-conditioner) Liquid reservoir and dryer (air-conditioner) W9272-8135-1 05/2020...
  • Page 74 Assembly and functions W9272-8135-1 05/2020...

  • Page 75: Operation

    Operation OPERATION Safety rules for operation The safety instructions (page 13) must be followed.  The machine may only be operated according to its approved use (page 16).  The machine may only be operated by instructed or trained personnel (page 11). ...

  • Page 76: Safety For Children

    Operation Safety for children Children are normally attracted to machines and their normal 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 STOP lead to serious accidents or even death of the children.

  • Page 77: Working In The Vicinity Of Overhead Power Lines

    Operation Working in the vicinity of overhead power lines When working with the machine in the vicinity of overhead power lines and tram lines, a minimum distance as specified in the following table must be maintained between the machine and its attachments and the power line. The owner of the machine or the person responsible for the work must ensure local, regional and national regula- tions are observed.

  • Page 78: Initial Operation

    Operation Initial operation Before initial operation, the machine must first be checked visually for external transit damages and checked if the shipped equipment is complete as ordered. Check fluid levels as described in the "Maintenance" section (page 171).  For a description of all operation features refer to the "Operating the machine" section (page 83) as well as ...
  • Page 79 Operation The list of available languages appears in the display. Rotate jog dial to the right or the left until the desired language  is selected. Press jog dial (enter switch) to confirm.  W9272-8135-1 05/2020...

  • Page 80: Setting The Date/Time

    Operation Setting the date/time Turn the starter switch to the RUN position.  Press menu switch on dial switch.  The menu bar appears in the display. Rotate jog dial to the right until “Various settings” is selected in  the display.

  • Page 81: Date And Time Display Format

    Operation Date and time display format Time can be displayed in the 12- or 24-hour format, while the date format can be changed to day, month, year. Turn the starter switch to the RUN position.  Press menu switch on dial switch. ...

  • Page 82: Setting The Display Brightness

    Operation Setting the display brightness The display brightness is presettable in 10 levels. This brightness setting can be made separately for the working light turn-on and turn-off states. Press menu switch on dial switch.  The menu bar appears in the display. Rotate jog dial to the right until “Various settings”...

  • Page 83: Setting The Work Light Turn-Off Delay Function

    Operation Press jog dial (enter switch) to complete “Display brightness” setting.  Input can be cancelled at any time. Changes are then not saved. To cancel your input, press return switch.  The display returns to its previous display mode. Setting the work light turn-off delay function The working light turn-off can be delayed for a given time after turn- ing off the key.
  • Page 84 Operation “Work light turn-off delay” setting screen appears in the display. Rotate jog dial to the right or the left until the desired item is se-  lected. Rotate jog dial to the right or the left to select ON/OFF or the ...

  • Page 85: Running-In Of The Machine

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

  • Page 86: Dust Valve - Clean

    Operation Dust valve - clean Empty the dust valve (1) by pressing it together several times.  Engine oil - check Pull out the oil dipstick (1) and wipe it with a clean cloth.  Insert the oil dipstick completely and pull it out again. The oil ...

  • Page 87: Radiator And A/C Condenser - Check

    Operation Radiator and A/C condenser - check Do not touch the hot radiators: risk of burning. STOP Visually inspect the coolant radiator (1), fuel cooler (2), hydrau-  lic oil cooler (3) and condenser (4) for leaks and accumulation of dirt and debris. Radiator - clean If there is any dirt or debris an the radiators or condenser: Clean the radiator from the engine side with a water jet or com-...

  • Page 88: Exhaust System Leakage - Check

    Operation Exhaust system leakage - check Risk of burns! STOP Make sure that the engine has stopped and the exhaust system has cooled down. Check the exhaust system for leaks and security (formation of  cracks). If the exhaust system is leaky or loose, the machine may only ...

  • Page 89: Bucket Bolt And Linkage Bolt - Grease

    Operation Bucket bolt and linkage bolt - grease Start the engine (page 96).  Position the arm and bucket as shown in the figure. See the  "Operating the controls during excavation work" section (page 117). Stop the engine (page 99). ...

  • Page 90: Electrical Instrumentation - Check

    Operation Electrical instrumentation - check Check the function of the interior light (page 62)  Check the function of the working light (page 143)  Check the function of the rotary beacon (optional) (page 138)  Check the function of the ventilation fan of the heater and air conditioner (optional) (page 134) ...

  • Page 91: Fuel Level, Coolant Temperature, Hydraulic Oil Temperature Date And Time - Check

    Operation Fuel level, coolant temperature, hydraulic oil temperature date and time - check The following function can be carried out when the key is not in the starter switch. The display shows the fuel level (1), the date and time (4), the hy- draulic oil temperature (3) and the coolant temperature (2).

  • Page 92: 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 seat to the desired position by moving it forward or back, then release the lever.
  • Page 93 Operation Seat height adjustment for mechanical suspension seat (knee height) The seat height can be adjusted to three stop positions. To adjust the seat height, slowly raise the seat until it automatically engages in the next stop. When the seat is raised over the highest stop, it will be lowered automat- ically to the lowest position again.
  • Page 94 Operation Adjusting the console Pull up the console adjust lever (6) vertically and move it back  and forth to adjust the horizontal position of the console. Then release the lever. With the console in a desired position, make sure the STOP adjust lever is locked.

  • Page 95: Seat Belt

    Operation Seat belt Risk of accidents! Operating the machine without wearing the seat belt is STOP prohibited! The belt buckle is equipped with a sensor. This sensor detects whether the seat belt is fastened and whether the tongue is inserted and latched in the buckle. If the engine starts and the seat belt is not latched in- side the buckle, a warning message appears on the display.

  • Page 96: Adjusting The Rear View Mirrors

    Operation In order to see the indirect field of view (3), adjust the rear view mirrors (page 94).  The obscured areas in the previous figure were determined using a field of view test method based on the performance criteria from ISO 5006:2017. If structural modifications to the machine restrict the defined visibility conditions, then the machine operator must carry out a new risk assessment for the changed visibility conditions.

  • Page 97: Safety Instructions For Starting The Engine

    Operation Safety instructions for starting the engine The machine is equipped with an anti-theft system (page 158). When starting the machine for the first time on a work day, carry out the pre-operational services (page 83). Make sure that there are no persons within the machine’s working area. It is essential to warn persons STOP in the vicinity of the machine by briefly honking the horn.

  • Page 98: Starting The Engine

    Operation Starting the engine Place the potentiometer (1) to the centre position between . The AUTO IDLE switch (2) is  switched off. The indicator (3) does not light up. KX060-05_066 Insert the key into the starter switch and turn it to the RUN position. ...
  • Page 99 Operation The display message as in the figure on the right appears for a short period of time. The engine can be started after it disappears. The engine oil pressure indicator (2) lights up, then goes out again after the engine has started. The charge indicator (3) lights up, then goes out again after the en- gine has started.
  • Page 100 Operation After the engine has reached its operating temperature, set the engine speed required for operation: Turn the potentiometer (1) towards until the required speed is reached.  Turn on AUTO IDLE control (2).  The indicator (3) lights up when the AUTO IDLE control is enabled. The AUTO IDLE control makes sure that the pre-selected engine speed drops down to idle speed after approx.

  • Page 101: Start The Engine In Cold-Weather Conditions

    Operation Numeric (1) displays of the engine speed show the engine‘s current number of revolutions per minute. The time meter (2) shows the actual hours of operation of the ma- chine (independent from the engine speed). Keep an eye on the displays and indicators during operation (page 100).

  • Page 102: Observation Of The Displays After Starting And During Operation

    Operation Observation of the displays after starting and during operation The operator must observe the display indicators and displays after starting and during operation. The warning light (1) flashes red when a system fault or technical malfunction occurs. Stop the engine im- mediately! The warning light flashes yellow when the system issues a warning.
  • Page 103 Operation When the machine is being operated at or close to full capacity, the temperature of the coolant can rise a little higher than normal. The display message as in the figure on the right appears. Operate the machine only with reduced loads until the operating temperature is normal again.

  • Page 104: Checking Error Messages

    Operation If the message "Feed Fuel" appears in the display and the warning light (1) flashes yellow, there is very little fuel left in the tank. Refuel the machine (page 147). Checking error messages Press menu switch on dial switch. ...
  • Page 105 Operation Also stop the engine immediately if the engine speed rises or drops suddenly,  abnormal noises are heard,  the mechanical equipment do not respond to the control lever as expected or  the exhaust fumes are black or white. When the engine is still cold, white smoke for a short time is normal. ...

  • Page 106: Particle Filter Regeneration

    Operation Particle filter regeneration The machine has an exhaust system that is equipped with a diesel particle filter, which filters out carcinogenic soot particles from the exhaust gases. The particle filter must be regenerated regularly in order to prevent the soot particles from clogging the particle filter rendering it useless.

  • Page 107: Automatic Particle Filter Regeneration - Procedure

    Operation Automatic particle filter regeneration - Procedure The following conditions have to be met for carrying out automatic regeneration. The automatic particle filter regeneration is released (1). The engine coolant should be at operating temperature. The engine speed should be the speed such the “Raise engine speed”...
  • Page 108  If the particle filter is clogged and damaged, then the particle filter needs to be replaced by the KUBOTA dealer. The display message as in the figure on the right appears. In addi- tion, the red warning light flashes and an audible signal is emitted continuously.

  • Page 109: Automatic Particle Filter Regeneration - Overview

    “Raise engine speed” indicator and 60 seconds to protect the particle fil- message disappear. ter. Inform your KUBOTA dealer if the re- flashing If the control lever lock is lowered, the generation does not start automati- (red) engine speed is limited.

  • Page 110: Blocking And Releasing The Particle Filter Regeneration - Procedure

    Operation Blocking and releasing the particle filter regeneration - Procedure Press the inhibit switch (1).  The automatic particle filter regeneration is locked and the indicator lights up on the display. The particle filter regeneration must be performed in certain inter- vals.
  • Page 111 The particle filter is regenerated. But the engine power is restricted to 50 %. If the particle filter regeneration was locked permanently, the parti- cle filter must be reconditioned by your KUBOTA dealer. The display message as in the figure on the right appears. In addi- tion, the red warning light flashes and an audible signal is emitted at intervals.

  • Page 112: Blocking And Releasing The Particle Filter Regeneration - Overview

    If the control lever lock is low- ered, then the engine is not switched off. The particle filter is clogged Inform your KUBOTA dealer with soot particles and the par- immediately. ticle filter regeneration can no longer start. The particle filter must be repaired.

  • Page 113: Driving The Machine

    Operation Driving the machine Adhere to the general safety rules (page 13) and the safety rules for operation (page 73).  Carry out the pre-operational services (page 83).  Start the engine (page 96).  Observe the displays and indicators (page 100). ...

  • Page 114: Driving

    Operation Raise the dozer to the top position by pulling back the dozer le-  ver (1). Select an appropriate engine speed.  KX060-05_068 Driving Push both drive levers forward simultaneously to drive the machine straight ahead. Releasing the drive levers ...

  • Page 115: Turning

    Operation Two audible signals will sound and the indicator (1) will change to the icon of fast speed. Pressing the travel speed button again switches back to normal speed and only one signal will sound. Do not drive fast on muddy or uneven terrain, also if another control is operated (e.g.
  • Page 116 Operation From a standing position Leave the right drive lever in neutral, push the left drive lever  forward. In this case, the turning radius is determined by the right track. (A) The machine makes a right turn. Turning on the spot Do not make a turn on the spot with the travel speed STOP button actuated.

  • Page 117: 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 118: 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 119: Operating The Controls During Excavation Work

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

  • Page 120: 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 until ...

  • Page 121: Overview Of Control Lever Functions (Standard Setting)

    Operation The dozer remains in the floating position until the dozer control le- ver is returned to the neutral position Overview of control lever functions (standard setting) The figure shows, in connection with the following table, the func- tions of the left and right control levers. Control lever Movement Right control lever...

  • Page 122: Operating The Arm

    Operation Watch the boom during lowering, so that the boom or the bucket teeth do not hit the dozer. The boom moves as shown in the figure. Operating the arm To dump the arm, push the left control lever forward (figure/ ). ...

  • Page 123: 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 124: 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 (fig- ...

  • Page 125: Operating The Auxiliary Ports

    (AP 1+2). The operation features of the right and left control levers are configured according to the equipment at- tached. Only attachments approved by KUBOTA may be used. The attachments must be operated in accord- STOP ance with the operating instructions supplied with them.

  • Page 126: Aux Port 1

    Operation The auxiliary port function is only available when the control lever lock is lowered. If the control lever lock is raised or it is raised during the operation of the auxil- iary port, then auxiliary port operation is not possible. The message appears as in the figure on the right.

  • Page 127: One-Way Hold Operation

    Operation Only when the auxiliary port function is enabled, the rocker switch allows the oil to flow towards the auxilia- ry port. If this function is disabled, no oil flows towards the auxiliary port. The message appears as in the figure on the right. - Press the AUX enable switch first and then han- dle the rocker switch.
  • Page 128 Operation Operating modes The auxiliary port connector is preset at the factory, enabling five operating modes to be selected. The operating mode can be changed on the “Mode select” screen (page 126). The icon and flow rate index in the display change accordingly. When the starter switch is turned to the RUN position the most-recently used setting is activated.
  • Page 129 Operation The “Mode select” menu appears in the display. Rotate jog dial to the right or the left until the desired mode is selected.  Press jog dial (enter switch) to confirm.  The icon and flow rate index in the display change accordingly. The flow rate set for auxiliary port 1 is shown on the right of the dis- play, that of auxiliary port 2 on the left.
  • Page 130 Operation Rotate jog dial to the right until “Flow volume setting” is select-  ed in the display. Press Jog dial (enter switch).  The “Flow volume setting” mode select screen appears in the dis- play. Rotate jog dial to the right or the left until the desired mode is ...
  • Page 131 Operation The maximum flow rate can be set for each auxiliary port connector. Rotate jog dial to the right or the left until the desired bar graph  is selected. Press Jog dial (enter switch).  Rotate the jog dial to the right or the left until the bar graph ...

  • Page 132: 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.

  • Page 133: Depressurising The Hydraulic System

    Operation Depressurising the hydraulic system Perform the pressure relief procedure immediately after stopping the engine! Lower front attachments and dozer completely.  Turn the starter switch to the STOP position.  Wait until the engine has come to a standstill. ...
  • Page 134 Operation Press the auxiliary port enable switch (1) and turn on the auxil-  iary port function. KX060-05_073 You will see the setting of the flow rates in the display. The bar height "A" shows the flow rate at the respective auxiliary port con- nectors (1, 2, 3 and 4).

  • Page 135: Placing Out Of Operation

    Operation Rocker switch auxiliary port 2 (6) on the left control lever must  be pushed over completely to the right and left. The auxiliary port connectors (4 and 5) are pressure relieved. Placing out of operation Park the machine in such a way that it can not move and is secured against unauthorised use. STOP Drive the machine onto level ground.

  • Page 136: Operating The Heating And Air-Conditioner System (Optional)

    Operation Operating the heating and air-conditioner system (optional) This air conditioner contains fluorinated greenhouse gases (F-gases). Global Warming Potential -equivalent (t) Refrigerant Amount (kg) (GWP*) HFC-134a 0.75 1.08 1430 * GWP = Global Warming Potential Explanation of the information label: Marking that the air conditioner contains F-gas Industrial name of the F-gas that it contains HFC –...

  • Page 137: Cooling The Cab

    Operation To heat the cab faster, switch the air intake to the “circulating  air” position (A) with lever (1). No cold outside air will enter and the circulating inside air heats fast- To prevent the windows from steaming up while operating the heat- er for extended periods of time, the air intake should be switched back to the “fresh air”...

  • Page 138: De-Icing Or Demisting The Windows

    Operation De-icing or demisting the windows Proceed as follows to de-ice the windows or clean them of conden- sation: Set the temperature control (1) to the "Warm" position.  Blue  Cold Red  Warm Set the blower switch (2) to the 3 position. ...

  • Page 139: Operating The Wiper/Washer System

    Operation Operating the wiper/washer system All cab models are equipped with a wiper/washer system.  Risk of damage to components! When you turn on the wiper while the windscreen is opened, the wiper can hit the adjacent cab com- ponents causing damage to the wiper. - Do not turn on the wiper switch while the windscreen is open.

  • Page 140: Operating The Room Light

    Operation Operating the room light Press the switch (2) to the ON position.  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. ...

  • Page 141: Opening And Closing The Cab Door

    Operation Opening and closing the cab door 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  door by attaching the hook (2) at the cab wall. Closing the cab door Press down the release lever (1) and pull the cab door into the ...

  • Page 142: Opening And Closing The Windows

    Operation Opening and closing the windows Front window Always lock the front window. Do not stay in the cab and operate the machine 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 143: Front Window Base

    Operation Front window base Removal The front window must be opened and the backrest must be folded completely forward. Lift the front window base (1) upwards to remove it from the  window frame. KX060-05_087 Carefully insert the front window base (1) into the fixings (2) at ...
  • Page 144 Operation Installing Check that the front window is opened before install- ing. Firmly hold the front window base (1) against the cab left wall  with one hand. Loosen the locking mechanism (2) and carefully remove the  front window base from the cab back wall. Note that the glass pane may fall down - risk of injury! Running into something can cause the glass pane to STOP...

  • Page 145: Side Window

    Operation Side window Press up the grip (1) to release the lock and pull side window  open to the rear or to the front. Fit the lock hooks in the window sash grooves. This can get the  sliding window locked halfway. While in operation, preferably get the window locked with either of the grooves.

  • Page 146: Cold Weather Operation

    Operation Cold weather operation Operating the machine at an ambient temperature below 5 °C is regarded as 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 147: Jump-Starting The Machine

    Operation Jump-starting the machine Only a vehicle or starting device with a 12 V power supply may be used. The operator must remain seated on the operator’s place, the battery jumper cables must be con- STOP nected by a second person. Make the battery accessible, and remove the positive terminal cover.

  • Page 148: 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 emergency stop 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 149: Filling Up The Washer System

    Operation 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. Refuelling the machine When refuelling the machine, smoking, an open flame, or other sources of ignition are not allowed. The danger zone has to be clearly marked with signs.

  • Page 150: Refuelling The Machine

    Operation Refuelling the machine Stop the engine.  Open the left service cover (page 156).  Remove the filler cap (1) by turning it anticlockwise.  Fill diesel fuel up to the base of the filler neck.  Screw on the filler cap and close the service cover. ...

  • Page 151: Bleeding The Fuel System

    Operation Bleeding the fuel system If the fuel tank was run empty or if work was performed on the fuel system, then the fuel system has to be bled. To bleed the fuel system, move the starter switch to the RUN position. ...

  • Page 152: Replacing The Fuses

    Operation Replacing the fuses Burnt out fuses may only be replaced with fuses of the same type and same rating. The bypassing of fuses, for example by a wire, is not allowed. If the malfunction can not be remedied by replacing the fuse, or if the fuse blows again when starting, contact skilled personnel.

  • Page 153: Fuse Layout Of The Fuse Box

    Operation Fuse layout of the fuse box Blower motor ECU Main (AC) A/C Controller Fuel Pump ECU LED (+B) Control lever Lock ECU Main (Power) Alternator Horn Switch Seat Room light 12-V electrical outlet Beacon Wiper / Washer K-OBD Radio (AC) Horn Compressor Beacon 2...

  • Page 154: Main Fuses

    Operation Main fuses Disconnect the negative terminal of battery.  Remove the main fuse box (1).  Open the main fuse box cap (1) and cover (2) then remove the  bolts (3). A A B B C C D D Remove the burnt out main fuse from the main fuse box (1) and ...

  • Page 155: Operating The Battery Isolator

    Operation Operating the battery isolator In order for the machine to be operated, the battery cut-off switch (1) must be in the ON position. A  OFF B  ON If the battery cut-off switch is in the OFF position, most of the electrically powered functions will also be switched off (e.g.

  • Page 156: Opening And Closing The Engine Compartment Cover

    Operation Opening and closing the engine compartment cover Risk of injury by the engine compartment cover swing- ing upwards! STOP Putting up the engine compartment cover is supported by a gas spring. The engine compartment cover can suddenly swing upwards when opening it! Always hold on to the engine compartment cover while opening it and move it upwards slowly.

  • Page 157: Opening/Closing The Right Side Cover

    Operation Opening/closing the right side cover Risk of injury by side cover swinging upwards! Putting up the side cover is supported by a gas spring. STOP The side cover can suddenly swing upwards when opening it! - Always hold on to the side cover while opening it and move it upwards slowly.

  • Page 158: Opening/Closing The Front Service Cover

    Operation Opening/closing the front service cover Insert the key in the lock (1) of the cover (2) and turn it clock-  wise. Open the cover.  The cover has no catch! The cover falls off upon re- STOP lease, which can lead to hand injuries during clamping. To lock the cover, close it again and turn the key anticlockwise.

  • Page 159: Opening/Closing The Heating And Air Conditioner Unit Service Cover

    Operation Opening/closing the heating and air conditioner unit service cover Insert the key in the lock (1) of the cover (2) and turn it anti-  clockwise. Open the cover.  To lock the cover, close it again and turn the key clockwise. ...

  • Page 160: Anti-Theft System

    Operation Anti-theft system The machine is equipped with an anti-theft system that restricts the engine to be started using a registered key only. If a registered key gets lost or stolen, you can invalidate it. This will prevent the engine from being started with this key, thus protecting the vehicle against theft.

  • Page 161: The Key System

     prevent the motor from starting. Use only 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 162: Registering A Black Key For The Machine

    Operation If you attempt to register a fifth black key, the display will show  the "No more keys" message and registration cannot be carried out. KX060-5_112 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 machine’s working area.
  • Page 163 Operation Pull out the red key. The display shows the "Insert the key" message. 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. KX060-5_115 After a brief moment, the display shows the "Pull out black key"...
  • Page 164 Operation W9272-8135-1 05/2020...

  • Page 165: Troubleshooting

    Troubleshooting TROUBLESHOOTING The troubleshooting section includes only malfunctions and incorrect operations which must be remedied by the operator. Any other malfunctions may only be eliminated by trained personnel. The troubleshooting must be per- formed with the aid of the troubleshooting table. In order to locate a malfunction, first look in the MALFUNCTION column for the corresponding machine malfunction.

  • Page 166: Troubleshooting: Operation

    (page 200). Hydraulic hoses or connections are Must be replaced. Inform your leaking KUBOTA dealer. Travel speed button does not work. Fuse in fuse box is blown out Replace the fuses (page 150). Heater fan, wiper/washer system, Fuse in fuse box is blown out Replace the fuses (page 150).
  • Page 167 POSSIBLE CAUSE REPAIR Coolant temp. is too high. Water pump seal is damaged Must be replaced. Inform your KUBOTA dealer. V-belt is damaged or very loose Replace and/or tension it (page 185). Thermo switch is failed Must be replaced. Inform your KUBOTA dealer.

  • Page 168: Troubleshooting: Display Indications

    It is essential to take prompt action to rectify any incorrect operation, use or maintenance of the emis- sion control system in accordance with rectification as specified in the solution column. You can view detailed information by pressing the Jog dial (enter switch). Inform your KUBOTA deal- er which messages appeared in the display.
  • Page 169 Troubleshooting indicator Problem/Error Preliminary Measure Solution Problem with AUX2 / If systems other than Inform your KUBOTA Thumb system. AUX2 / Thumb system dealer immediately. function, work can be continued. Charging voltage is too Switch the engine off im- If the indicator lights up high....
  • Page 170 (e.g. exca- vating) by pressing the overload warning switch. 10 hours until periodic Operate the machine as Ask your KUBOTA dealer check interval. usual. for relevant parts and use them to replace existing parts.
  • Page 171 If the indicator lights up again, immediately con- tact your KUBOTA deal- Engine was stopped au- After turning off and re- tomatically to protect starting engine, rev up DPF. engine to start DPF re- gen.
  • Page 172 Troubleshooting indicator Problem/Error Preliminary Measure Solution Malfunctions in the partic- Engine control is not Immediately contact your ulate control device working properly. KUBOTA dealer of the (PCD) / NOx control de- emergency repair. vice (NCD). W9272-8135-1 05/2020...

  • Page 173: Maintenance

    A careful maintenance of the machine will guarantee functional safety and longer service life. Neglect of the servicing will void the warranty and any liability by 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 174: Repair Work On The Machine

    Maintenance Repair work on the machine Repairs on the machine may only be carried out by trained personnel. If repairs are carried out on load supporting parts, for example welding on frame parts, the work has to be checked by a qualified person. After repairs, the machine should be operated only if it is functioning properly.
  • Page 175 Maintenance The list of “Periodic check” check points appears in the display . To rotate jog dial can be used to scroll up and down through the  list of maintenance points. The maintenance points illustrated in the following table are set in the service period indicator. Elapsed hours of operation Maintenance point Task...

  • Page 176: General Maintenance Chart: 50 To 500 Hours Of Operation

    Maintenance General maintenance chart: 50 to 500 hours of operation Operator servicing Elapsed hours of operation Servicing Tasks 500 Interval Page Walk- around inspection Check daily Dust valve Clean daily Engine oil level Check daily Coolant level Check daily Radiator and A/C condenser Check daily V-belt...

  • Page 177: General Maintenance Chart: 550 To 1000 Hours Of Operation

    Maintenance General maintenance chart: 550 to 1000 hours of operation Operator servicing Elapsed hours of operation Servicing Tasks 1000 Interval Page Walk- around inspection Check daily Dust valve Clean daily Engine oil level Check daily Coolant level Check daily Radiator and A/C condenser Check daily V-belt...

  • Page 178: Servicing Maintenance Chart: 50 To 500 Hours Of Operation

    Maintenance Servicing maintenance chart: 50 to 500 hours of operation Servicing by skilled personnel or KUBOTA dealer Elapsed hours of operation * Servicing Tasks 100 150 Interval Page   Adjust 250 h V-belt Change Please contact your KUBOTA dealer.
  • Page 179 Servicing Tasks 100 150 200 Interval Page DPF differential pressure sen- Every 2 Change Please contact your KUBOTA dealer. sor (front and rear) years Suction pipe downstream from Every 2 Change Please contact your KUBOTA dealer. air flow sensor years...

  • Page 180: Servicing Maintenance Chart: 550 To 1000 Hours Of Operation

    Maintenance Servicing maintenance chart: 550 to 1000 hours of operation Servicing by skilled personnel or KUBOTA dealer Elapsed hours of operation * Servicing Tasks 550 600 650 1000 Interval Page   Adjust 250 h V-belt Change Please contact your KUBOTA dealer.
  • Page 181 Tasks 550 600 650 1000 Interval Page DPF differential pressure sen- Every 2 Change Please contact your KUBOTA dealer. sor (front and rear) years Suction pipe downstream from Every 2 Change Please contact your KUBOTA dealer. air flow sensor years...

  • Page 182: Operating Materials

    Always use distilled water to mix with antifreeze. SAE J1034 LLC-N-50F Always follow the recom- MB 325.0 Coolant KUBOTA Mixing ratio mendations of the coolant ASTM D3306 50 % manufacturer for the mixing ASTM D4985 ratio. Do not mix with other coolants.

  • Page 183: Cleaning The Machine

    Maintenance Cleaning the machine Before cleaning, shut down the engine and secure it against starting. STOP If a steam cleaner is used for cleaning the machine, do not direct the steam jet at electric components. Do not direct a water jet into the intake opening of the air filter. Do not clean the machine with inflammable liquids.

  • Page 184: Servicing

    Maintenance Servicing Adhere to the instructions for regular servicing to keep the machine in good condition. Coolant - refill Do not mix coolant from different brands! Open the engine compartment cover (page 154).  Check the antifreeze content with an antifreeze tester that is ...

  • Page 185: Radiator And Condenser - Clean

    Maintenance Radiator and condenser - clean Do not touch the hot radiators: risk of burning. STOP Open the side cover (page 155).  Remove the screws (1).  Open the condenser (2) forwards.  Drop down the stopper (3) and lock the condenser. ...

  • Page 186: Dusting Cover

    Maintenance Dusting cover In cleaning the cooler, remove the dusting cover to discharge dust out of the machine. Remove the screws (1). Remove the dusting cover (2). W9272-8135-1 05/2020...

  • Page 187: V-Belts - Check/Adjust/Change

    Maintenance V-belts - check/adjust/change Adjusting the V-belts Open the engine compartment cover (page 154).  Check the V-belt (page 85).  Air conditioner V-belt (optional) Loosen the lock nut (3).  Rotating the screw (4) clockwise adjusts the tension roller (2) ...

  • Page 188: Coolant Hoses And Hose Clamps - Check

    Maintenance Coolant hoses and hose clamps - check Carry out the inspection while the engine is cold. STOP Open the engine compartment cover (page 154).  Open the side cover (page 155).  Inspect condition (cracks, bulges, hard spots) of all coolant hoses (1) on the engine and to the radiator or to the heater fan, and ensure that they are tight and the clamps (2) are securely fastened.

  • Page 189: Coolant - Change

    Maintenance Coolant - change Drain the coolant only when the engine is cold. STOP Total cooling system capacity: 7 l Open the engine compartment and side cover (page 154).  Remove the radiator cap (1) by turning it anticlockwise.  Open the central coolant drain plug (1) and drain the coolant ...

  • Page 190: Engine Oil And Oil Filter - Change

    Maintenance Engine oil and oil filter - change Open the engine compartment cover (page 154).  Caution: The engine oil and the oil filter are very hot  risk of scalding. STOP Place an oil pan with a capacity of about 15 l under the engine oil drain. The engine oil should not be allowed to seep into the soil and it must be discarded like the oil filter in accordance with the applica- ble environment protection regulations.

  • Page 191: Oil Filter - Change

    Maintenance Oil filter - change Place an oil pan under the oil filter (1). Remove the oil filter us-  ing a filter wrench (turn anticlockwise). Coat the sealing ring of the new oil filter with engine oil.  Install and tighten the oil filter by hand. Do not use the filter ...

  • Page 192: Air Filter - Check/Clean/Change

    Maintenance Air filter - check/clean/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 193: Fuel Filter - Change

    Maintenance Fuel filter - change While changing the fuel filter, be careful not to allow dust or dirt into the fuel line and the fuel filter. Always remove spilled fuel immediately. Open the engine compartment cover (page 154).  Place a cleaning cloth under the fuel filter to prevent fuel from spilling onto the ground.

  • Page 194: Water Separator - Drain

    Maintenance Water separator - drain Water and impurities in the fuel settle in the water sep- arator. The water separator is equipped with a sensor that checks the fill level. If any such deposits form, a message will appear on the display as shown in figure on the right.

  • Page 195: Water Separator - Clean

    Maintenance Water separator - clean While changing the fuel filter, be careful not to allow dust or dirt into the fuel line and the fuel filter. Always remove spilled fuel immediately. Open the engine compartment cover (page 154).  Place a cleaning cloth under the water separator (1) to prevent fuel from running onto the ground.

  • Page 196: Water Separator Filter - Change

    Maintenance Water separator filter - change While changing the fuel filter, be careful not to allow dust or dirt into the fuel line and the fuel filter. Always remove spilled fuel immediately. Open the engine compartment cover (page 154).  Place a cleaning cloth under the water separator (1) to prevent fuel from running onto the ground.

  • Page 197: Fuel Tank - Drain

    Maintenance Fuel tank - drain Open the front service cover (page 156).  Place a container with a minimum capacity of 12 l under the fuel  drain valve. Open drain valve (1) and drain the water.  Close Close the drain valve. ...

  • Page 198: Fuel Lines And The Air Intake Hoses - Check

    Maintenance Fuel lines and the air intake hoses - check Check all accessible fuel lines (1), air intake hoses (2) and clamps (3) to ensure that they are not damaged  and are firmly seated. Repair or replace damaged parts. ...

  • Page 199: Return Filter In The Hydraulic Oil Tank - Change

    Maintenance Return filter in the hydraulic oil tank - change While replacing the return filter, be careful not to allow dust or dirt into the hydraulic oil tank. Always remove spilled hydraulic oil immediately. Pay attention to utmost cleanliness when servicing the hydraulic system. Risk of injury by hot and pressurized hydraulic oil! This service may only be carried out after the hy- STOP draulic oil has cooled down.

  • Page 200: Tank Breather Filter - Change

    Maintenance Remove the return filter (5) with rod (7).  Loosen the screw (6).  Remove the return filter and replace it with a new one.  Dispose of cleaning cloths and the old filter element in accordance with applicable environmental protection regulations.

  • Page 201: Pilot Circuit Filter - Change

    Maintenance Pilot circuit filter - change While changing the pilot circuit filter, be careful not to allow dust or dirt into the pilot circuit filter. Always remove spilled hydraulic oil immediately. This service may only be carried out after the hydraulic oil has cooled down. STOP Open the side cover (page 155).

  • Page 202: Suction Filter - Change

    Maintenance Suction filter - change While replacing the hydraulic oil and the suction filter, be careful not to allow dust or dirt into the hy- draulic oil tank. Always remove spilled hydraulic oil immediately. Pay attention to utmost cleanliness when servicing the hydraulic system. Risk of injury by hot pressurized hydraulic oil! This service may only be carried out after the hydraulic STOP oil has cooled down.
  • Page 203 Maintenance Remove the suction filter assembly (5).  If necessary, remove any residues with a clean, lint-free cloth.  Discard the suction filter and cleaning cloth in accord- ance with applicable environmental protection regula- tions. Install the new suction filter assembly. ...

  • Page 204: Hydraulic Oil - Refill/Change

    Maintenance Hydraulic oil - refill/change While replacing the hydraulic oil and the suction filter, be careful not to allow dust or dirt into the hy- draulic oil tank. Always remove spilled hydraulic oil immediately. Pay attention to utmost cleanliness when servicing the hydraulic system. Risk of injury by hot pressurized hydraulic oil! This service may only be carried out after the hydraulic STOP oil has cooled down.

  • Page 205: Draining The Hydraulic Oil

    Maintenance Draining the hydraulic oil The swivel frame must be turned 90° to the right for the hydraulic oil drain to be accessed. Place a container with a minimum capacity of 100 l under the  hydraulic oil drain plug. Remove the drain plug (1) and drain the hydraulic oil.
  • Page 206 Maintenance Fill hydraulic oil to half way up the sight glass (5).  Refit the hexagonal plug to the hose.  Close the engine compartment cover.  Refit the plug to the hydraulic oil tank.  Close the side cover. ...

  • Page 207: 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 - For refillable-type batteries, never charge or use when the electrolyte level is below the [LOW- ER] (lower limit level) mark.

  • Page 208: Battery - Charge

    Maintenance Battery - charge Battery acid is very caustic. Avoid contact with battery acid under all circumstances. If clothing, skin or eyes have come in contact with battery acid, rinse the affected parts immediately with water. If the eyes are affected, immediately seek medical attention! Neutralise spilled battery acid immediately. When servicing a battery, always wear suitable protective gloves and eye protection.

  • Page 209: Battery - Change

    Maintenance Battery - change When disconnecting and connecting the battery, always observe the specified order  Risk of short STOP circuit. Open the side cover (page 155).  Remove the negative terminal cover and take off the cable  clamp (1). Move the clamp to the side so as to avoid contact with the negative terminal.

  • Page 210: Lubrication

    Maintenance Lubrication The following describes all lubricating tasks which should be performed with the superstructure. Swivel gear - grease Fill grease through the grease fitting (1) with a grease gun.  Grease at each 90° position of the swivel gear. Fill a to- tal of approx.

  • Page 211: Swing Bracket - Grease

    Maintenance Swing bracket - grease Lubricate both greasing points (see figure to the right) – see the  "Operating materials" section (page 180) – by injecting grease until fresh grease emerges. Wipe emerged grease off immediately and store dirty cleaning cloths in the containers provided for disposal. Other greasing points Start the engine (page 96).

  • Page 212: Crawler Tension - Check/Adjust

    Maintenance Crawler tension - check/adjust If the crawlers are too tight, wear is increased. If the crawlers are too loose, wear is increased and the crawlers may come off. When parking an machine with rubber crawlers, ensure that the seam ( ) is on top half way between the two sliders (see figure/1, ...

  • Page 213: Crawler Tension (Steel) - Check

    Maintenance Caution: The area around the rotating crawler must be free of persons. Turn the starter switch to the STOP STOP position after rotating the crawler and remove the key. Recheck the crawler tension, readjusting it if necessary.  Perform the procedures on the second crawler. ...

  • Page 214: Drive Unit Oil - Change

    Maintenance Drive unit oil - change Only change the oil when the drive unit is warm to the hand; if not, drive the machine warm. Park the machine on level ground so that the drain plug (figure below, position 3) is positioned at the bottom. ...
  • Page 215 Maintenance Cleaning Clean only with filtered air at max. 2 bar pressure. Always wear eye protection when working with com- STOP pressed air. 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.

  • Page 216: Pipes And Hoses Of The Heating And Air-Conditioner Systems - Check

    If there are any worn or damaged parts found, consult your KUBOTA dealer. Only trained personnel may work on the heating and air-conditioner systems. Close the engine compartment and side cover.

  • Page 217: Coolant Content (Air-Conditioner Only) - Check

    A low refrigerant level affects the performance of the equipment and the air-conditioner will eventually automati- cally switch off. If you find out that the refrigerant level is too low, please contact your KUBOTA dealer. Open the side cover (page 155).

  • Page 218: Viewing The Operations Log

    Maintenance Viewing the operations log The operations log enables the operation of the machine over the previous three months to be checked. Turn the starter switch to the RUN position.  Press menu switch on dial switch.  The menu bar appears in the display. Rotate jog dial to the right until “Log record”...

  • Page 219: 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 ( kgfm 4 T (4.6) 7 T (8.8)

  • Page 220: Tightening Torque For Hydraulic Hoses

    Maintenance Tightening torque for hydraulic hoses Nm ( kgfm Nut type Nut type Dimension (ORS) (Metal seal) (ORS) 7.8~11.8 1/8 ( - ) (0.8~1.2) 24.5~29.4 35.2~43.1 1/4 (9/16-18) (2.5~3.0) (3.6~4.4) 37.2~42.1 60.0~73.5 3/8 (11/16-16) (3.8~4.3) (6.1~7.5) 58.8~63.7 70.6~86.2 1/2 (13/16-16) (6.0~6.5) (7.2~8.8) 117.6~127.4...

  • Page 221: Tightening Torque For Hydraulic Adapters

    Maintenance Tightening torque for hydraulic adapters Tightening torque Comments Thread size Wrench size Steel pipe kgfm (Pipe union) (guide number) (OD) R (conical thread) G (round thread) 19.6~29.4 17 mm 8 mm 1/8" 2.0~3.0 0.67 in. 0.31 in. With O-ring Tightening torque for 36.3~44.1 19 mm...
  • Page 222 Maintenance W9272-8135-1 05/2020...

  • Page 223: 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 where the machine is deployed. The owner (operator) (page 16) should arrange for the safety inspections to be performed at specified intervals according to national rules and regulations.
  • Page 224 Safety inspection W9272-8135-1 05/2020...

  • Page 225: Taking Out Of Service And Storage

    Taking out of service and storage TAKING OUT OF SERVICE AND STORAGE If the machine is taken out of service for up to six months, the measures before, during and after taking 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 226: Start-Up After Taking Out Of Service

    Taking out of service and storage Start-up after taking out of service If necessary, clean the machine thoroughly (page 181).  Check the hydraulic oil for condensate water. Replace the oil if necessary (page 202).  Remove the grease from the piston rods of the hydraulic cylinders. ...

  • Page 227: 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 pin part of the arm with the arm fully extended.

  • Page 228: Load Suspension Device

    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 229 Lifting capacity of the excavator Lift point Lift point radius Lift point height Vertical axis W9272-8135-1 05/2020...

  • Page 230: Max. Lifting Load During Swivel Operation Is 360

    Lifting capacity of the excavator Max. lifting load during swivel operation is 360° 360 ° Z \ X 4.5 m 1440 1760 W9272-8135-1 05/2020...
  • Page 231 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL U50-5 SPEC. CAB VERSION WITH RUBBER CRAWLER ARM 1450 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT...
  • Page 232 Lifting capacity of the excavator Lifting capacity over front end, dozer down, only with pipe safety valve on the dozer cylinder MODEL U50-5 SPEC. CAB VERSION STEEL CRAWLER ARM 1450 mm kN (t) LIFT POINT RADIUS (mm) LIFT POINT HEIGHT...

  • Page 233: Software Information

    This product includes "Open Source Software", which is provided "as is". KUBOTA and any third party that has the right to use OSS shall not be liable for any damages arising out of this software and its use or the inability to use it.
  • Page 234 Software information W9272-8135-1 05/2020...
  • Page 235 Software information W9272-8135-1 05/2020...

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