Contents

OPS - Excavator KX057-4, U55-4 (RD358-8131-6)
ABBREVIATION LIST
GENERAL SYMBOLS
FOREWORD
SAFETY FIRST
CONTENTS PAGE
- SAFE OPERATION
- DEALER SERVICE
- TECHNICAL DATA
- DESCRIPTION OF MACHINE PARTS
- INSTRUMENT PANEL AND CONTROL ELEMENTS
- CHECKS BEFORE START
  - DAILY CHECKS
  - CHECKING THE DEVICES
    - B Starter Switch
    - B Display Selector Switch
    - B LCD Display for Normal Operation
    - B Warning Lamp
    - B LCD Display for Warning
    - B Setting the Clock
    - B Reordering the year/month/day and Changing the AM/PM System to the 24- hour One
    - B Log Record
    - B Periodic Check
    - B If All the Check Points are not Displayed at a Glance on a Single Screen
    - B When the Check-up is Completed
    - B Horn Switch
    - B Working Light Switch
    - B AUX Port Flow Rate Limit Switch
    - B Auto Idle Switch
    - B Throttle Potentiometer
    - B Travel Speed Switch
  - CAB TYPE MACHINES
    - B Wiper/Washer Switch
    - B Interior Lamp
    - B Cab Light Switch
    - B Heater Switch
    - B Opening/Closing of CAB Door
    - B Opening/Closing of Front CAB Window
    - B Opening/Closing of Side CAB Window
    - B Emergency Hammer
  - AIR CONDITIONER
    - B Air Flow
    - B Air Control Vent
    - B Control Panel
    - B Operation
  - HANDLING THE SAFETY DEVICES
    - B Pilot Control Lock Lever
- OPERATION OF THE ENGINE
  - STARTING THE ENGINE
  - STARTING THE ENGINE UNDER COLD CONDITIONS
  - STARTING WITH AN AUXILIARY BATTERY
    - B Observe Following Guidelines when Starting with an Auxiliary Battery
  - CHECK POINTS AFTER STARTING THE ENGINE
  - STOPPING THE ENGINE
    - B Engine Stop Button
    - B Precautions in case of Overheat
- EXCAVATOR OPERATION
  - RUNNING-IN OF THE NEW EXCAVATOR
    - B Do not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours
    - B Oil Change in the Run-in Stage
    - B Adjusting the Operator's Seat
    - B Seat Belt
  - STARTING
    - B Pilot Control Lock Lever
  - DRIVING
    - B Drive Levers(Right,Left)
  - TURNS
    - B Pivot Turn
    - B Spin Turn
  - UP AND DOWNHILL DRIVING
  - PARKING ON A SLOPE
  - OPERATION OF THE DOZER
  - TWO PATTERN SELECTION SYSTEM(TPSS)
    - B Pattern Change
  - OPERATION OF THE BOOM
  - OPERATION OF THE ARM
  - OPERATION OF THE BUCKET
  - UNIT SWING AND BOOM SWING OPERATION
    - B Unit Swing Operation
    - B Boom Swing Operation
  - AUXILIARY PORT OPERATION
    - B Selecting the Action Modes
    - B AUX Port Handling Procedure
    - B Setting the Maximum Flow Volume
  - HOW TO RELEASE PRESSURE TRAPPED IN THE HYDRAULIC SYSTEM
  - 1-way or 2-way CIRCUIT SELECTION VALVE OPERATION
  - AUTO IDLE (AI) OPERATION
  - IMPORTANT INFORMATION ON EXCAVATOR OPERATION
- TRANSPORTING THE EXCAVATOR ON A VEHICLE
- LIFTING OF THE EXCAVATOR
- MAINTENANCE
  - MAINTENANCE INTERVALS
  - OPENING AND CLOSING OF COVERS
    - B Opening/Closing of the Engine Hood
    - B Opening/Closing of the Side Cover
    - B Where to store the Tool
    - B Where to store the Grease Gun
    - B Where to keep Operator's Manual
    - B Cup Holder
  - DAILY CHECKS
    - B Checking Coolant Level
    - B Checking Fuel Level
    - B Checking Engine Oil Level
    - B Checking Hydraulic Oil Level
    - B Checking V-belt
    - B Checking Radiator and Oil Cooler
    - B Checking Washer Liquid
    - B Cleaning Pre-Cleaner
    - B Checking and Cleaning Engine and Electrical Wiring
    - B Greasing Boom Swing Fulcrum
    - B Washing Whole Machine
    - B Greasing Front Attachments (without Bucket Pin and Boom Swing Fulcrum)
    - B Greasing Bucket Pin and Bucket Link Pin
- REGULAR CHECKS AND MAINTENANCE WORK
  - EVERY 50 SERVICE HOURS
    - B Draining Fuel Tank
    - B Draining Water Separator
    - B Battery
    - B Battery Charging
    - B Greasing Swing Bearing Teeth
  - EVERY 200 SERVICE HOURS
    - B Adjusting V-belt Tension
    - B Checking Radiator Hoses and Clamps
    - B Inspection and Cleaning Air Filter Element
    - B Air Filter Maintenance
    - B Greasing Swing Ball Bearing
    - B Checking Fuel Line and Intake Air Line
  - AIR CONDITIONER
    - B Cleaning Air Filter
    - B Checking Air-Conditioner Condenser
  - EVERY 250 SERVICE HOURS
    - B Changing Engine Oil(First Engine Oil Change after 50 Service Hours)
    - B Replacing Engine Oil Filter
  - EVERY 500 SERVICE HOURS
    - B Drive unit Oil Change(First Oil Change of the 50 hours)
    - B Replacing Fuel Filter Cartridge
    - B Replacing Breather Filter
  - EVERY 1000 SERVICE HOURS
    - B Replacing the Hydraulic Pilot Filter Element
    - B Replacing Hydraulic Return Filter Element
    - B Hydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank)
    - B Hydraulic Oil Check with Hydraulic Hammers
  - EVERY 1000 SERVICE HOURS OR ONCE A YEAR
    - B Replacing Air Filter Element
  - EVERY 1500 SERVICE HOURS
    - B Checking Fuel Injection Nozzle(Injection Pressure)
  - EVERY 2000 SERVICE HOURS
    - B Changing Front Idler and Track Roller Oil
    - B Checking the Alternator and Starter Motor
  - EVERY 3000 SERVICE HOURS
    - B Checking Injection Pump
  - ANNUAL SERVICING
    - B Electrical Wiring and Fuses
    - B Checking the Electrical Circuit
    - B Checking Air-Conditioner Pipes and Hoses
  - BIENNIAL SERVICING
    - B Replacing Air-Conditioner Pipes and Hoses
    - B Replacement of Radiator Hoses
    - B Changing Radiator Coolant
    - B Replacing Fuel Hose
    - B Replacing Intake Air line
  - SERVICING AS REQUIRED
    - B Checking Amount of Refrigerant (gas)
- OTHER ADJUSTMENTS AND REPLACEMENTS
  - PURGING OF THE FUEL SYSTEM
  - ADJUSTMENT OF TRACKS
    - B Special Information when Using Rubber Tracks
  - CHANGING THE BUCKET
  - FUSES
    - B Replacing Fuses
    - B Fuse Capacities and Circuits
    - B Auxiliary Electric
    - B Slow Blow Fuse
- TROUBLESHOOTING
- OPERATION UNDER COLD WEATHER CONDITIONS
  - PREPARATION FOR OPERATION IN COLD WEATHER
  - PROCEDURE AFTER DONE WORK
- LONG STORAGE
- RECOMMENDED OILS
- APPENDICES
  - MAIN DIMENSIONS
- LIFTING CAPACITY
- LIST OF SCREENS
  - LIST OF NORMAL SCREENS
  - NAVIGATION LIST OF SCREENS

Kubota KX057-4 Operator's Manual

Pages 127

Year 2009

Language(s)

of 127

Kubota KX057-4 Excavator Specification

The Kubota KX057-4 Excavator is designed to deliver superior performance, versatility, and reliability for a wide range of construction and landscaping applications. This compact excavator is powered by a robust Kubota V2607-DI diesel engine, offering a maximum output of 47.6 horsepower. Its efficient engine meets Tier 4 emission standards, ensuring environmentally friendly operation without compromising power. The KX057-4 features a variable displacement hydraulic pump system that provides exceptional digging force and precise control, enhancing productivity on the job site.

With an operating weight of approximately 12,000 pounds, the KX057-4 offers excellent stability and maneuverability. It boasts a maximum digging depth of 12 feet 8 inches and a maximum reach at ground level of 20 feet 1 inch, making it suitable for various excavation tasks. The spacious cab is equipped with a deluxe suspension seat and an advanced digital panel, providing operators with comfort and easy access to machine data and controls. The cab also offers excellent visibility, improving safety and efficiency.

The excavator's versatile design includes a standard hydraulic angle blade, which facilitates efficient backfilling and leveling operations. The auxiliary hydraulics come standard, allowing for the easy integration of a wide range of attachments, such as augers, breakers, and thumbs, further increasing the machine's utility. Additionally, the KX057-4 features a swing boom and zero-tail swing, optimizing its performance in confined spaces. Durable construction, ease of maintenance, and a reputation for reliability make the Kubota KX057-4 Excavator an ideal choice for contractors seeking a high-performance compact excavator for demanding tasks.

Kubota KX057-4 Excavator F.A.Q.

What is the proper procedure for starting the Kubota KX057-4 Excavator?

To start the Kubota KX057-4 Excavator, ensure that the safety lock lever is engaged, the throttle is set to low, and the gear is in neutral. Turn the ignition key to the preheat position until the indicator light turns off, then proceed to start the engine.

How do I perform regular maintenance checks on the Kubota KX057-4?

Regular maintenance for the Kubota KX057-4 includes checking engine oil levels, hydraulic fluid, coolant, and inspecting the air filter. Additionally, grease all pivot points and check the condition of tracks and attachments for wear and tear.

What should I do if the excavator's hydraulic system is operating slowly?

If the hydraulic system is operating slowly, check the hydraulic fluid level and top it off if necessary. Inspect hoses and connections for leaks, and ensure the hydraulic filter is clean. If issues persist, consult a professional technician.

How can I troubleshoot engine overheating in the Kubota KX057-4?

To troubleshoot engine overheating, check the coolant level and ensure the radiator is not blocked. Inspect the fan belt for proper tension and replace if worn out. Additionally, ensure the thermostat is functioning correctly.

What are the steps to adjust the track tension on the Kubota KX057-4 Excavator?

To adjust track tension, first raise the track off the ground. Use a wrench to loosen the lock bolt, then adjust the tension bolt until the sag is approximately 10-15 mm. Tighten the lock bolt securely after adjustment.

How do I change the oil in the Kubota KX057-4 Excavator?

To change the oil, run the engine until warm, then turn it off. Remove the oil drain plug and allow the old oil to drain completely. Replace the drain plug, change the oil filter, and refill with the recommended engine oil.

What should be checked if the excavator's electrical system malfunctions?

If the electrical system malfunctions, check the battery for charge and ensure all connections are clean and tight. Inspect fuses and replace any that are blown. Additionally, verify that all wiring is intact and undamaged.

How can I safely transport the Kubota KX057-4 Excavator on a trailer?

To safely transport the excavator, lower the boom and secure it with chains. Ensure the machine is centered on the trailer and secured with chains or straps at all four corners. Double-check all fastenings before transport.

What are the recommended intervals for replacing filters on the Kubota KX057-4?

Filters should be replaced according to the manufacturer's schedule, typically every 500 hours of operation for the engine oil filter, and every 1,000 hours for the hydraulic and fuel filters. Always use genuine Kubota parts for replacements.

How can I improve fuel efficiency when operating the Kubota KX057-4 Excavator?

To improve fuel efficiency, operate the excavator at the optimal engine speed and avoid unnecessary idling. Regularly maintain the machine, including cleaning air filters and ensuring proper track tension to reduce engine load.