Kubota KX057-4 Operator's Manual
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Kubota KX057-4 Operator's Manual

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JOSIP
January 30, 2025

Hi i have kubota kx163, i have problem throttle potenciometter is not working, i have error code 275?, please can you give me some info what is the problem ? thanks

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Summary of Contents for Kubota KX057-4

  • Page 2 ABBREVIATION LIST Abbreviations Definitions American Petroleum Institute ASTM American Society for Testing and Materials, USA CECE Committee for European Construction Equipment German Institute for Standards, Federal Republic of Germany European Standard FOPS Falling Object Protective Structures FRONT "Front" means the front view towards the boom and dozer High speed International Standardization Organization Japanese Industrial Standard...
  • Page 3 GENERAL SYMBOLS The instruments and operation elements have been marked with a series of symbols in order to simplify the opera- tion of your excavator. These symbols are listed below with the respective descriptions. Safety alert Symbol Boom swing (Left) Warning lamp “Fuel level too low”...
  • Page 4 FOREWORD You are now the proud owner of a KUBOTA excavator. This excavator is a product of KUBOTA quality engineering and manufacturing. It is made of the fine materials and under rigid quality control systems. It will give you long, satisfactory service.

  • Page 5: Table Of Contents

    CONTENTS SAFE OPERATION ....................1 DEALER SERVICE...................... 1 TECHNICAL DATA...................... 2 DESCRIPTION OF MACHINE PARTS................ 4 INSTRUMENT PANEL AND CONTROL ELEMENTS..........5 CHECKS BEFORE START ..................7 DAILY CHECKS....................... 7 CHECKING THE DEVICES ..................7 Starter Switch ........................7 Display Selector Switch ....................8 LCD Display for Normal Operation ...................
  • Page 6 CONTENTS STARTING THE ENGINE UNDER COLD CONDITIONS........31 STARTING WITH AN AUXILIARY BATTERY ............31 Observe Following Guidelines when Starting with an Auxiliary Battery......31 CHECK POINTS AFTER STARTING THE ENGINE ..........32 STOPPING THE ENGINE..................33 Engine Stop Button......................33 Precautions in case of Overheat..................
  • Page 7 CONTENTS Where to keep Operator's Manual.................. 65 Cup Holder........................65 DAILY CHECKS..................... 65 Checking Coolant Level....................65 Checking Fuel Level ....................... 66 Checking Engine Oil Level....................66 Checking Hydraulic Oil Level..................67 Checking V-belt ......................67 Checking Radiator and Oil Cooler .................. 68 Checking Washer Liquid....................
  • Page 8 CONTENTS Checking the Alternator and Starter Motor ..............83 EVERY 3000 SERVICE HOURS ................83 Checking Injection Pump ....................83 ANNUAL SERVICING.................... 83 Electrical Wiring and Fuses .................... 83 Checking the Electrical Circuit ..................83 Checking Air-Conditioner Pipes and Hoses..............83 BIENNIAL SERVICING ..................
  • Page 9 Structure, Falling Objects Protective Structure.) with a Familiarize yourself with the pattern selected by seat belt is installed by KUBOTA. Always use the seat operating the unit slowly and at low engine speed. belt when the machine is equipped with a ROPS/...
  • Page 10 14. Keep your excavator clean. Heavy soiling, grease, dust and grass can cause fires, accidents or injuries. 15. Use only KUBOTA authorized attachments. A Do not allow any persons within the working range of 16. Before starting the excavator, be absolutely sure that the excavator during operation.
  • Page 11 SAFE OPERATION 7. When operating, keep hands and body inside of the ROPS / FOPS protective. OPERATING THE EXCAVATOR Do not touch or depress the control levers or the pedals from outside the cab while the engine is 1. Mount and dismount of the machine safely. Always running.
  • Page 12 SAFE OPERATION AFTER OPERATION SAFE LOADING AND TRANSPORT OF THE EXCAVATOR Before leaving the machine, A Park the excavator on a firm, flat and level surface. If 1. Observe all regulations concerning the transport of this is not possible, park across the slope. excavators on public roads.
  • Page 13 SAFE OPERATION 7. Do not open the radiator cap before the radiator has cooled down sufficiently Max. drawbar pull at 116.9 kN (11920 kgf) First loosen the cap to the first stop and allow the coupling hook system enough time to release the remaining Max.
  • Page 14 KUBOTA dealer where the machine was purchased, or competent service shop. The assembly must be done according to the KUBOTA work shop manual (W.S.M.) for the product involved. 17. When lifting the machine itself with an attachment, place a safety block or safety post to prevent the machine from turning over.
  • Page 15 SAFE OPERATION 6. DANGER, WARNING AND CAUTION LABELS...
  • Page 16 SAFE OPERATION...
  • Page 17 SAFE OPERATION...
  • Page 18 SAFE OPERATION...
  • Page 19 SAFE OPERATION...
  • Page 20 SAFE OPERATION...
  • Page 21 2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth. 3. Replace damaged or missing danger, warning and caution labels with new labels from your KUBOTA dealer. 4. If a component with danger, warning and caution label(s) affixed is replaced with new part, make sure new label(s) is (are) attached in the same location(s) as the replaced component.

  • Page 23: Safe Operation

    DEALER SERVICE DEALER SERVICE Your KUBOTA dealer is always ready to help so that your excavator offers the best performance. After having carefully read these instructions, you will realize that much of the routine maintenance can be done by yourself.

  • Page 24: Technical Data

    TECHNICAL DATA TECHNICAL DATA KUBOTA EXCAVATOR Model name KX057-4 Type Canopy Operating weight 5510 5600 (including operator's) Water cooled 4 cycle diesel Type engine with 4 cylinder (No air conditioner type) V2607-DI-E3-BH-5 Model name (Air conditioner type) V2607-DI-E3-BH-3 Engine Total displacement...
  • Page 25 TECHNICAL DATA KUBOTA EXCAVATOR Model name U55-4 Type Canopy Operating weight 5380 5470 (including operator's) Water cooled 4 cycle diesel Type engine with 4 cylinder (No air conditioner type) V2607-DI-E3-BH-5 Model name (Air conditioner type) V2607-DI-E3-BH-3 Engine Total displacement 2615 Engine power SAE 35.5...

  • Page 26: Description Of Machine Parts

    DESCRIPTION OF MACHINE PARTS DESCRIPTION OF MACHINE PARTS DEPICTED CONTENTS (1) Bucket cylinder (6) Swing bracket (11) Boom cylinder (16) Drive sprocket (2) Arm (7) Arm cylinder (12) Dozer cylinder (17) Track roller (3) Bucket link 2 and 3 (8) Canopy (13) Dozer blade (18) Front idler (4) Bucket link 1...

  • Page 27: Instrument Panel And Control Elements

    INSTRUMENT PANEL AND CONTROL ELEMENTS INSTRUMENT PANEL AND CONTROL ELEMENTS B Instrument Panel, Switch (1) LCD display (3) Travel speed switch (5) Throttle potentiometer (7) Auto idle control switch (2) Horn switch (4) Starter switch (6) Working light switch Ref. page Starter switch.............
  • Page 28 INSTRUMENT PANEL AND CONTROL ELEMENTS B Control Pedals and Levers (1) Drive lever (left) (3) Boom swing pedal (5) Attachment control lever (right) (7) Drive pedal (left) (2) Attachment control lever (left) (4) Drive lever (right) (6) Dozer control lever (8) Drive pedal (right) Ref.

  • Page 29: Checks Before Start

    Check the condition of the safety and warning labels. (See "DANGER, WARNING AND CAUTION LABELS" in "SAFE OPERATION" section.) Inspect ROPS / FOPS for damage and if damage is found contact your KUBOTA dealer for repair. (1) Starter switch (A) STOP (B) RUN (C) START A If the key is repositioned from "RUN"...

  • Page 30: Display Selector Switch

    CHECKS BEFORE START [Status with the key off] BDisplay Selector Switch Press the display selector switch while the engine is running. The LCD meter display will change from one indication mode to the others. Change the three-mode display according to your jobs. [MODE 1] [Status with the key off but not pulled out] (1) Display selector switch...

  • Page 31: Lcd Display For Normal Operation

    CHECKS BEFORE START C AUX port in use [MODE1] BLCD Display for Normal Operation C Fuel gauge To avoid personal injury: A Before adding fuel, be sure to stop the engine. A Be sure to keep open flame away from the machine.
  • Page 32 CHECKS BEFORE START C Water Temperature Gauge C Fuel level audible indication switch (when refueling) 1. With the starter key at the "OFF" position, press the fuel level audible indication switch, and the fuel level To avoid personal injury: can be checked with buzzer sound. A Do not open the radiator cap during or just after 2.
  • Page 33 CHECKS BEFORE START C Overheat warning If the above message appears, take corrective measures, 1. If the water temperature becomes too high, the referring to the "Precautions in case of Overheat" message "Water temp. is Rising" appears onscreen section. for a certain period of time. The LCD display then gets back to normal, but the water temperature sensor A When water...

  • Page 34: Warning Lamp

    "RUN" position without starting the engine, the buzzer beeps. (See "LIST OF SCREEN" section for charging lamp stays off. detail.) A Let your KUBOTA dealer inform you of details concerning care and maintenance. (1) Charging lamp (1) Warning lamp (red, yellow)
  • Page 35 CHECKS BEFORE START Information A If the charging system failed, and the starter key is turned to the "RUN" position without starting the engine, the charging lamp stays off. In such case, immediately ask your local dealer for repair. C Engine oil pressure low warning When the engine oil pressure drops too low, the lamp (red) starts flashing and the following message appears in...

  • Page 36: Setting The Clock

    CHECKS BEFORE START 3. Press the downward move switch (Switch 2) twice to move the cursor into position. Then press the save User settings switch (Switch 5) to make the following screen appear. By pressing the item move switch (Switch 4), the year, BSetting the Clock month, day, hour and minute will be selected in this order.

  • Page 37: Reordering The Year/Month/Day And Changing The Am/Pm System To The 24-Hour One

    CHECKS BEFORE START 4. Save the new setting with the save switch (Switch 5). Press this switch again to set the clock. (1) Save switch (Switch 5) (1) Save switch (Switch 5) BReordering the year/month/day and [Status after setting the clock] Changing the AM/PM System to the 24- hour One 1.

  • Page 38: Log Record

    Fix this choice with the If the direction cursor switch (Switch 1) is pressed, save switch (Switch 5). the previous settings will remain. A Consult your KUBOTA dealer for details. (1) Direction cursor switch (Switch 1) (2) Save switch (Switch 5) (3) Cursor...

  • Page 39: Periodic Check

    CHECKS BEFORE START 4. Press the save switch (Switch 5) to make the calendar appear onscreen. BPeriodic Check Press the cursor move switch (Switch 2), and the log The following message appears on the LCD display 10 records (machine's operating days) for the last month hours before a periodic check.

  • Page 40: If All The Check Points Are Not Displayed At A Glance On A Single Screen

    CHECKS BEFORE START BIf All the Check Points are not Displayed at a Glance on a Single Screen 1. Press the information switch (Switch 4). 2. Each time the cursor move switch (Switch 2 or 3) is pressed, the check points scrolled up or down. (1) Information switch (Switch 4) (2) Cursor move switch (Switch 2) (3) Cursor move switch (Switch 3)
  • Page 41 CHECKS BEFORE START C Service hour meter When the hour meter has counted up to the hours circled in the maintenance list below, the message appears. The message shows up as follows. Hour meter indicator Check points Intervals Consequently 1000 Engine oil (CF-4) every 250 hrs change...

  • Page 42: When The Check-Up Is Finished

    CHECKS BEFORE START BWhen the Check-up is Finished BWorking Light Switch With the check-up finished, take the following procedure to make the Periodic Check disappear from the screen. When the starter switch is in position "RUN", the light(s) 1. The message below appears onscreen to see if the will be switched on by pressing the switch.

  • Page 43: Auto Idle Switch

    CHECKS BEFORE START BAuto Idle Switch BTravel Speed Switch The switch is used to enable and disable the Auto Idle Travel speed will increase when this switch is pushed control. down. Switching the dual travel speed: A Enable: Press the Auto Idle switch. When the 1.

  • Page 44: Overload Warning Switch

    CHECKS BEFORE START A It automatically changes into first speed (low speed) BOverload Warning Switch when the drive resistance grows while traveling second speed (high speed). Thereafter, when the resistance lightens, it returns to second speed. To avoid personal injury or death: A If the tracks are clogged with sand or gravel while A Continuing to apply the load after the overload working on soft ground, lift up the track with the help of...

  • Page 45: Cab Type Machines

    CHECKS BEFORE START CAB TYPE MACHINES BCab Light Switch BWiper/Washer Switch To turn on the cab light, set the starter switch to the "RUN" To move the wiper, turn on the switch for the wiper when and then the cab light switch to the "ON" positions, the starter key in position "RUN".

  • Page 46: Opening/Closing Of Cab Door

    CHECKS BEFORE START BOpening/Closing of CAB Door BOpening/Closing of Front CAB Window 1. Unlock the CAB door and pull the knob. Open the CAB door fully until fixed into place. 2. To close the CAB door, push the release lever down To avoid personal injury: and close the door.

  • Page 47: Opening/Closing Of Side Cab Window

    CHECKS BEFORE START AIR CONDITIONER BOpening/Closing of Side CAB Window BAir Flow 1. Pull the grip to release the lock and pull side window Air in the CAB and fresh air introduced into the CAB flow open to the rear or to the front. as shown in the figure.

  • Page 48: Air Control Vent

    CHECKS BEFORE START Position the inlet selector lever to the desired position. BAir Control Vent C Front air outlet The front air outlets can be independently adjusted as required. To defrost the windshield, rotate the outlets toward the windshield. (1) Inlet selector lever (A) "FRESH AIR INLET" position (B) "INNER AIR RECIRCULATION"...

  • Page 49: Control Panel

    CHECKS BEFORE START BControl Panel BOperation C Heating 1. Adjust the blower (1/2/3) switch and the temperature control dial to achieve the desired temperature level. A In summer when the heater is not used, keep the temperature control dial at the "COOL" (rightmost) position.

  • Page 50: Handling The Safety Devices

    CHECKS BEFORE START HANDLING THE SAFETY DEVICES BPilot Control Lock Lever A When the excavator is not used or left unattended, be sure to place the pilot control lock lever in position "Locked". The pilot control lock lever is located on the left side. (1) Pilot control lock lever (A) "Unlock"...

  • Page 51: Operation Of The Engine

    OPERATION OF THE ENGINE OPERATION OF THE ENGINE Start the engine in the following manner: 1. Before starting the engine, make sure that all control levers are in the neutral positions. To avoid personal injury: A Read "SAFE OPERATION" at the beginning of this operator's manual.
  • Page 52 OPERATION OF THE ENGINE 4. Set the starter key to the "RUN" position. Hold the key A If you keep the pilot control lock lever at "UNLOCK" at this position until the " " mark on the display panel and try to get the engine started, "Up Lever Lock" disappears.

  • Page 53: Starting The Engine Under Cold Conditions

    OPERATION OF THE ENGINE STARTING THE ENGINE UNDER COLD STARTING WITH AN AUXILIARY BATTERY CONDITIONS To avoid personal injury: A Battery gases can explode. To avoid personal injury: Do not smoke and keep sparks and flames A Make sure that the lock lever is in the lock away.

  • Page 54: Check Points After Starting The Engine

    A Warning lamp for engine oil lights up during operation. the electrical system. When using an auxiliary battery, only the compatible (same) voltage is permissible. A In these cases, the excavator must be checked and serviced by your local the KUBOTA dealer.

  • Page 55: Stopping The Engine

    OPERATION OF THE ENGINE STOPPING THE ENGINE BPrecautions in case of Overheat To avoid personal injury or death: A Do not keep the bucket or dozer in the lifted To avoid personal injury or death: A Do not open the radiator cap during operation position, as a person could accidentally touch or just after shut-down.

  • Page 56: Excavator Operation

    EXCAVATOR OPERATION EXCAVATOR OPERATION RUNNING-IN OF THE NEW EXCAVATOR BAdjusting the Operator's Seat The operation and care of the new excavator influences its life span. Your new excavator has been carefully checked and tested before leaving the factory. In spite of this, all movable components must run-in during the first To avoid personal injury: A Make sure that the seat is completely secured...

  • Page 57: Seat Belt

    EXCAVATOR OPERATION BSeat Belt BPilot Control Lock Lever To avoid personal injury or death: To avoid personal injury: A Always use the seat belt with a ROPS/FOPS A To avoid injuries, check safety aspects all protection structure. Adjust the seat to the around the excavator.

  • Page 58: Driving

    EXCAVATOR OPERATION A Recommended technique for working on a DRIVING slope. To avoid personal injury or death: A Before starting the engine, make sure that no one is near the excavator. A Before operating the excavator, check the track direction. (Front idler and dozer blade to the front of the excavator).

  • Page 59: Drive Levers(Right,Left)

    EXCAVATOR OPERATION 3. Activate the dozer control lever to raise the dozer. BDrive Levers(Right,Left) To avoid personal injury or death: A When driving the excavator keep the dozer blade in front. To move the excavator forward (A) and reverse (B) with dozer blade in front. If the dozer blade is behind operator station, then the controls are reversed, moving forward will require (B) and backwards move levers...

  • Page 60: Turns

    EXCAVATOR OPERATION TURNS 2. While travelling backwards, bring the left drive lever into the neutral position; the excavator will turn in the direction of the arrow of the illustration below. To avoid personal injury: A Do not change direction on steep slopes, or the excavator could tip over.

  • Page 61: Spin Turn

    While traveling uphill, keep the lower edge of the bucket approx. 20 to 40cm above the ground. Although the KUBOTA excavator will not slip easily because of the tracks, it is safer to let the bucket slide over the ground while traveling downhill.

  • Page 62: Parking On A Slope

    EXCAVATOR OPERATION PARKING ON A SLOPE OPERATION OF THE DOZER 1. To raise the dozer, pull back the control lever. To lower the dozer, push the control lever forward. To avoid personal injury or death: To float the dozer, push the control lever more forward A When excavator parked...

  • Page 63: Two Pattern Selection System(Tpss)

    EXCAVATOR OPERATION TWO PATTERN SELECTION SYSTEM(TPSS) To avoid personal injury: A Study control lever pattern A and pattern B. Then choose the one which is most familiar. A Position the pattern selector lever (located on the right side of operator's seat) in either the lower position (Pattern A) or the upper position (Pattern B).

  • Page 64: Operation Of The Boom

    EXCAVATOR OPERATION OPERATION OF THE BOOM OPERATION OF THE ARM To raise the boom, pull the attachment control lever back. Pull back the attachment control lever and the arm will be The boom is equipped with a cushion cylinder which helps pulled in.

  • Page 65: Operation Of The Bucket

    EXCAVATOR OPERATION OPERATION OF THE BUCKET UNIT SWING AND BOOM SWING To dig using the bucket, move the right attachment control OPERATION lever from the neutral position, left. Moving the control lever right, moves the bucket outwards and empties its contents.

  • Page 66: Boom Swing Operation

    EXCAVATOR OPERATION BBoom Swing Operation 1. Flip the pedal lock up to unlock the pedal. 2. Step on the left side of the pedal to swing the boom to the left. 3. Step on the right side of the pedal to swing the boom to the right.

  • Page 67: Auxiliary Port Operation

    EXCAVATOR OPERATION AUXILIARY PORT OPERATION The auxiliary port enable switch is used to operate hydraulic attachment such as hammers. BSelecting the Action Modes The AUX port has been factory-set to four action modes. You can select one of them. Up to six action modes can be preset. Each time the AUX port enable switch (switch 3) is pressed, the action modes change over one after another.

  • Page 68: Aux Port Handling Procedure

    EXCAVATOR OPERATION C Checking the settings of each action mode When an action mode is selected and the " " mark BAUX Port Handling Procedure appears at the lower right of the icon, the flow volume 1. Turn the starter key to the "RUN" position. setting gets displayed by pressing the switch 4.
  • Page 69 EXCAVATOR OPERATION 3. Push the AUX port enable switch (switch 3). 4. If the machine is equipped with the AUX 1 port, move the AUX port knob of the right attachment control lever to the right to send oil to the AUX port 1. Move the AUX port knob of the right attachment control lever to the left to send oil to the AUX port 2.

  • Page 70: Setting The Maximum Flow Volume

    EXCAVATOR OPERATION C One way hold [AUX 1 and 2 modes] BSetting the Maximum Flow Volume Press the one way hold switch of the right attachment The AUX port has been factory-set to three action modes control lever, and the oil continues to flow through the port 1, 2 and 3.
  • Page 71 EXCAVATOR OPERATION 3. Each time the switch 5 is pressed, the mode number 5. Each time the switch 2 or 3 is pressed, the icon changes. Select your desired setting mode number. changes. Select your desired icons. (1) Icon (1) Switch 2 (2) Mode No.
  • Page 72 EXCAVATOR OPERATION 6. Set the maximum flow volume for each AUX port. A There is no relationship between the icons and the Press the switch 4 to move the setting cursor (arrow flow control settings. Select icons to suit the images of mark) to the port 2 position of Thumb port at the right.
  • Page 73 EXCAVATOR OPERATION 7. Press the switch 2 or 3 to preset the maximum flow 8. Go back to Step 3 to make settings for the next action volume. mode. When all the settings of all the action modes Set the bar to the highest level, and the flow volume have been made, press the switch 1 to return to the will be maximized.
  • Page 74 EXCAVATOR OPERATION...

  • Page 75: How To Release Pressure Trapped In The Hydraulic System

    EXCAVATOR OPERATION HOW TO RELEASE PRESSURE TRAPPED 3. Make sure that the flow volume in all the AUX ports is not minimized. IN THE HYDRAULIC SYSTEM If the pressure is removed after minimizing the flow 1. Lower the attachments and the blade down to the volume in the AUX port, release pressure is not ground.

  • Page 76: 1-Way Or 2-Way Circuit Selection Valve Operation

    EXCAVATOR OPERATION 1-way or 2-way CIRCUIT SELECTION VALVE OPERATION To avoid personal injury: A selection valve which selects 1-way or 2-way circuit of A Stop the engine before removing/changing the service port has been installed on the hydraulic tank. equipment. 1.

  • Page 77: Auto Idle (Ai) Operation

    EXCAVATOR OPERATION AUTO IDLE (AI) OPERATION IMPORTANT INFORMATION ON 1. Throttle Potentiometer EXCAVATOR OPERATION With this potentiometer the operator can adjust the A Do not try to crush concrete or boulders using side engine speed when the Auto Idle control is activated. swings with the bucket.

  • Page 78: Transporting The Excavator On A Vehicle

    TRANSPORTING THE EXCAVATOR ON A VEHICLE TRANSPORTING THE EXCAVATOR ON A VEHICLE B Transporting on a Truck To avoid personal injury or death: A No directional changes should be made when the excavator is on the ramp. Should a change To avoid personal injury or death: of direction be necessary, drive off the ramp A After loading the machine on the truck, lower...
  • Page 79 TRANSPORTING THE EXCAVATOR ON A VEHICLE 3. For additional safety, use blocks or supports under the ramps and the bed. (1) Chain (2) Block B Towing the machine 4. Completely align the ramps and the tracks and then drive the excavator slowly up the ramps. After ensuring that the tracks are completely on the bed, swing the upper body around to the back of the To avoid personal injury:...

  • Page 80: Lifting Of The Excavator

    LIFTING OF THE EXCAVATOR LIFTING OF THE EXCAVATOR (4) With the boom not swinging, set the swing pedal to the neutral position, place the pedal cover and stop the engine. To avoid serious injury or death: (5) Apply shackles (3200 kg or heavier-duty) through A The correct instructions for safe handling are the openings at both ends of the blade.
  • Page 81 The weights of the excavators and the recommended (23453 kgf) (25187 kgf) tackle for lifting these loads are mentioned in the following table. Choose components having enough strength. [KX057-4] CANOPY Excavator Weight* 5600 kg 5510 kg Load / Cable 1550 kN (158056 kgf)

  • Page 82: Maintenance

    MAINTENANCE MAINTENANCE MAINTENANCE INTERVALS Hour meter indicator Ref. Check points Measures Interval page check Daily check Coolant change every 2 years Fuel check Daily check check Daily check Engine oil change every 250 hrs check Daily check Hydraulic oil change every 1000 hrs Bucket and bucket Daily check...
  • Page 83 MAINTENANCE Hour meter indicator Ref. Check points Measures Interval page 1000 check Daily check Coolant change every 2 years Fuel check Daily check check Daily check Engine oil change every 250 hrs check Daily check Hydraulic oil change every 1000 hrs Bucket and bucket Daily check link pin...
  • Page 84 *4 Consult your local KUBOTA dealer for this service. A The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA non- road emission regulation. As the engine owner, you are responsible for the performance of the required...

  • Page 85: Opening And Closing Of Parts

    MAINTENANCE OPENING AND CLOSING OF PARTS BOpening/Closing of the Side Cover BOpening/Closing of the Engine Hood 1. Insert the starter key in its hole and turn it clockwise to unlock the side cover. Pull the catch, and hold up the side cover until the gas spring fixture stay gets locked.

  • Page 86: Where To Store The Tool

    MAINTENANCE BWhere to store the Tool BWhere to store the Grease Gun 1. The tool box is located in front of the right side bonnet. 1. Open the side cover, and the grease gun storage spot will be found inside. (1) Side cover 2.

  • Page 87: Where To Keep Operator's Manual

    MAINTENANCE DAILY CHECKS BWhere to keep Operator's Manual To avoid personal injury: A Do not operate the excavator while putting out the hands and the body from the windows. A Do not touch the control levers and the pedals from outside the cab during the engine running.

  • Page 88: Checking Fuel Level

    A Make sure that the fuel tank is not run empty. Air will (2) Fuel level audible indication switch enter the fuel system, and must be purged before restarting. KX057-4 75 L A See "PURGING OF THE FUEL SYSTEM" in "OTHER Fuel tank capacity...

  • Page 89: Checking Hydraulic Oil Level

    MAINTENANCE 2. Check the oil level as to whether it lies on the center of the gauge at normal temperature (10 to 30 BChecking Hydraulic Oil Level 3. Enough oil is present when oil is at center mark. 4. Should the oil level be too low, loosen the oil filling plug gradually to release pressure in the tank, then fill up To avoid personal injury: with oil at oil fill port.

  • Page 90: Checking Radiator And Oil Cooler

    MAINTENANCE BChecking Radiator and Oil Cooler To avoid personal injury: A Always stop the engine and remove the key before checking the radiator. A Wear eye protection when cleaning with compressed air. 1. Check to see if the condenser fins are clogged with dirt.

  • Page 91: Cleaning Pre-Cleaner

    MAINTENANCE BCleaning Pre-Cleaner BGreasing Front Attachments (without Bucket Pin and Boom Swing Fulcrum) To clean the pre-cleaner, remove the wing nut and remove the pre-cleaner bowl. To avoid personal injury: A First lower all attachments on the ground then stop the engine and remove the key. A While greasing, take care not to step on the bucket teeth.

  • Page 92: Greasing Bucket Pin And Bucket Link Pin

    MAINTENANCE BGreasing Boom Swing Fulcrum Grease the marked grease nipples shown by arrows in the illustration below. (1) Dozer cylinder boss (2) Dozer linkage pin BGreasing Bucket Pin and Bucket Link Pin To avoid personal injury: A First lower all attachments on the ground then stop the engine and remove the key.

  • Page 93: Regular Checks And Maintenance Work

    REGULAR CHECKS AND MAINTENANCE WORK REGULAR CHECKS AND MAINTENANCE WORK BDraining Water Separator [Checking and Draining] To avoid personal injury: A Do not operate the excavator while putting out Water and dirt contained in fuel will settle down in the the hands and the body from the windows.

  • Page 94: Battery

    REGULAR CHECKS AND MAINTENANCE WORK BBattery To avoid the possibility of a battery explosion: For refillable type battery, follow the instructions below. A Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark.

  • Page 95: Battery Charging

    REGULAR CHECKS AND MAINTENANCE WORK BBattery Charging BGreasing Swing Bearing Teeth 1. Pump grease with the grease gun through the grease nipple. 2. Grease at each 90 (1.58 rad.) position of the swing To avoid personal injury: frame. A When the battery is being activated, hydrogen 3.

  • Page 96: Every 200 Service Hours

    REGULAR CHECKS AND MAINTENANCE WORK C Checking and adjustment of the fan belt tension EVERY 200 SERVICE HOURS 1. Press the fan belt down in the middle, with a force of Do all 50 and 100 hour servicing at the same time. approx.

  • Page 97: Checking Radiator Hoses And Clamps

    REGULAR CHECKS AND MAINTENANCE WORK BChecking Radiator Hoses and Clamps BInspection and Cleaning Air Filter Element Open the engine hood and remove the dust-cover. Take out only outer element, clean the element, case interior and reassemble. During reassembly, take care to install To avoid personal injury: the dust-cover so that its TOP mark (arrow) faces up- A Wait long enough for the radiator coolant to...

  • Page 98: Air Filter Maintenance

    REGULAR CHECKS AND MAINTENANCE WORK BAir Filter Maintenance BGreasing Swing Ball Bearing 1. Grease through the respective grease nipple. (at the central nipple) 2. Grease at each 90 (1.58 rad.) position of the swing To avoid personal injury: frame. A Wear eye protection. (1) Grease nipple The quickest and safest method of maintenance is the exchange of the paper cartridge.

  • Page 99: Checking Fuel Line And Intake Air Line

    REGULAR CHECKS AND MAINTENANCE WORK AIR CONDITIONER BChecking Fuel Line and Intake Air Line BCleaning Air Filter 1. Check to see that all lines and hose clamps are Open the cover and remove the filter cover, remove the air tightened and not damaged. filter.

  • Page 100: Checking Air-Conditioner Condenser

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 250 SERVICE HOURS Do all 50 hour servicing at the same time. BChanging Engine Oil(First Engine Oil Change after 50 Service Hours) To avoid personal injury: A First stop the engine then remove the key and wait long enough for the oil to cool down.

  • Page 101: Replacing Engine Oil Filter

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 500 SERVICE HOURS 4. Let the engine idle for approx. 5 min. Check the engine oil level. To check the engine oil level, insert the Do all 50, 100 and 250 hour servicing at the same time. engine oil dipstick completely into the respective port opening and pull out again.

  • Page 102: Replacing Fuel Filter Cartridge

    REGULAR CHECKS AND MAINTENANCE WORK EVERY 1000 SERVICE HOURS BReplacing Fuel Filter Cartridge Do all 50, 100, 200, 250 and 500 hour servicing at the same time. BReplacing the Hydraulic Pilot Filter To avoid personal injury: A Keep fire away. Element 1.

  • Page 103: Replacing Hydraulic Return Filter Element

    REGULAR CHECKS AND MAINTENANCE WORK A Always check the oil level when replacing the filter element. BHydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank) To avoid personal injury: A Wait long enough for the hydraulic fluid to cool down.

  • Page 104: Hydraulic Oil Check With Hydraulic Hammers

    REGULAR CHECKS AND MAINTENANCE WORK 4. Retighten the drain plug. BHydraulic Oil Check with Hydraulic Hammers The hydraulic oil change after 1000 operating hours in the operator's manual is based on normal excavator work. Following inspection measures are valid when hydraulic hammers are used: 1.

  • Page 105: Every 1000 Service Hours Or Once Ayear

    EVERY 1500 SERVICE HOURS BChecking Fuel Injection Nozzle(Injection Pressure) Consult your local KUBOTA Dealer for this service. EVERY 2000 SERVICE HOURS Do all 50, 100, 200, 250, 500 and 1000 hour servicing at the same time.

  • Page 106: Biennial Servicing

    REGULAR CHECKS AND MAINTENANCE WORK BIENNIAL SERVICING BChanging Radiator Coolant To avoid personal injury: A Do not loosen the radiator cap before the To avoid personal injury: A When using anti-freeze, put on some protection radiator has cooled down sufficiently. Then such as rubber gloves (Anti-freeze contains only loosen the cap and allow enough time for poison.).

  • Page 107: Replacing Fuel Hose

    REGULAR CHECKS AND MAINTENANCE WORK Stop the engine then remove the key and wait until it has cooled down completely. 1. Open the drain plug on the bottom of the radiator and drain coolant completely, Should a recovery tank be equipped, disconnect the line from the tank floor and then open the drain cock.

  • Page 108: Replacing Intake Air Line

    A Do disconnect part refrigeration circuit of the air conditioning system. Consult your local KUBOTA Dealer for assistance and service. A shortage of refrigerant impairs the air-conditioner performance. Check the following points. If it is indicated that the amount of refrigerant is extremely low, ask your dealer to inspect and charge.

  • Page 109: Other Adjustments And Replacements

    OTHER ADJUSTMENTS AND REPLACEMENTS OTHER ADJUSTMENTS AND REPLACEMENTS PURGING OF THE FUEL SYSTEM After adjustment is completed: Using the socket wrench, tighten the grease nipple. 1. Fill up the excavator with fuel. Tightening torque must be between 98 to 108 N-m. 2.

  • Page 110: Special Information When Using Rubber Tracks

    OTHER ADJUSTMENTS AND REPLACEMENTS To avoid serious injury or death: A Do not work under the machine in this condition. A For your safety do not rely on hydraulically supported devices, they may leak down and suddenly drop or be accidentally lowered. To avoid personal injury or death: A When lifting the machine itself with an attachment, place a safety block or safety post...

  • Page 111: Changing The Bucket

    A Read the manual of the attachment to do a correct operation safely when other attachments are installed instead of Kubota specified bucket. (1) Cover BReplacing Fuses 1. Remove the cover of the fuse box. 2. Replace the burnt out fuse with a fuse having the same...

  • Page 112: Fuse Capacities And Circuits

    OTHER ADJUSTMENTS AND REPLACEMENTS BFuse Capacities and Circuits (1) Fuse box [CAB (Air-conditioner type)] (1) Fuse box Cab Light AI Motor [Canopy] Work Light Horn SW Cab Light Fuel Pump Meter (+B) ECU (+B) Work Light Lever Lock Horn Beacon Meter (+B) Starter Room Light...

  • Page 113: Auxiliary Electric

    2. Remove the slow blow fuse case. 55W. If you need another auxiliary electric, contact your KUBOTA dealer for details. (1) Slow blow fuse case 3. Open the slow blow fuse case cap and cover then remove the bolts and draw out the slow blow fuse (B).

  • Page 114: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING If the excavator does not show the desired performance, or when trouble arises, refer to the table below and undertake appropriate measures. Trouble Cause Countermeasure Lock levers in "UNLOCK" * Bring lock lever into "LOCK" position. position * Check fuel tank and filter. Fuel is too viscous.
  • Page 115 TROUBLESHOOTING Trouble Cause Countermeasure Cylinder head gasket is * Replace. damaged (Coolant loss). Water Engine oil level too low * Fill to prescribed level. temperature Engine in red zone Maladjustment of fuel * Readjust ignition timing. (Overheating) injection Use of poor fuel * Use prescribed fuel.

  • Page 116: Operation Under Cold Weather Conditions

    OPERATION UNDER COLD WEATHER CONDITIONS OPERATION UNDER COLD WEATHER CONDITIONS PREPARATION FOR OPERATION IN COLD PROCEDURE AFTER DONE WORK WEATHER Clean the excavator thoroughly after work and wipe dry. Otherwise mud and earth on the tracks could freeze if the 1.

  • Page 117: Long Storage

    LONG STORAGE LONG STORAGE To avoid personal injury: A Do not clean the excavator with the engine running. A To avoid the danger of exhaust fume poisoning, do not operate the engine in a closed building without proper ventilation. A When storing, remove the key from the starter switch to avoid unauthorized persons from operating the excavator and getting injured.
  • Page 118 Hydraulic hose (Travel motor) Rotary joint - Travel motor Control valve - Rotary joint Hydraulic hose (Angle cylinder) Rotary joint - Pipe Pipe - angle cylinder To prevent serious damage to the hydraulic system, use only a KUBOTA genuine hydraulic hose.

  • Page 119: Recommended Oils

    RECOMMENDED OILS RECOMMENDED OILS 1. Before delivery the hydraulic oil used was an ISO 46 viscosity grade. 2. Use engine oil API service classification CD, CE or CF. 3. Use SAE 90 (API, CLA/GL5) as drive unit oil for all seasons. Application Viscosity Shell...

  • Page 120: Appendices

    1045 4310 6080 U55-4 2550 1960 5945 5500 1830 2460 A Above dimensions are based on the machine with KUBOTA original bucket. A Above dimensions are based on the machine with rubber track. A Specifications subject to change without notice.

  • Page 121: Lifting Capacity

    LIFTING CAPACITY LIFTING CAPACITY 1. The lifting capacities are based on ISO 10567 and do not exceed 75% of the static tilt load of the machine or 87% of the hydraulic lifting capacity of the machine. 2. The strokes are as follows. (1) The load point corresponds to the front bolt part of the arm.
  • Page 122 100 LIFTING CAPACITY...
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  • Page 128 106 LIFTING CAPACITY...
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  • Page 130: List Of Screens

    108 LIST OF SCREENS LIST OF SCREENS LIST OF NORMAL SCREENS Problem or failure Machine behavior Message Correction (What happened) (Provisional measure) Glow screen Wait until the glow mark Wait until the glow mark This screen indicates that disappears. Then get the disappears.

  • Page 131: Navigation List Of Screens

    LIST OF SCREENS NAVIGATION LIST OF SCREENS If an error occurs with the machine, one of the following messages appears in the LCD display. In case of trouble, immediately contact your local dealer for inspection and repair. While the ( ) (information mark) appears onscreen, press the information switch, and detailed information will be displayed.
  • Page 132 110 LIST OF SCREENS Problem or failure Machine behavior Message Correction (What happened) (Provisional measure) Not equipped with overload warning This message appears if the function overload warning switch is pressed on machines not equipped with overload warning system. Out of fuel Fuel is running out.
  • Page 133 LIST OF SCREENS Problem or failure Machine behavior Message Correction (What happened) (Provisional measure) Refill the radiator with coolant by its boiled-over Leave the engine idling until Cool-down during amount. Unclog the radiator this warning disappears. overheat idling and other components Do not stop the engine before use again.
  • Page 134 112 LIST OF SCREENS Problem or failure Machine behavior Message Correction (What happened) (Provisional measure) 12V short-circuit The majority of systems fail. * The engine may get started The sensor's or switch's 12V and the machine may move. Immediately contact your line is short-circuited.

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