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Kubota KX040-4 - User Manual

Kubota KX040-4
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OPERATOR'S MANUAL
1BAAAADAP0600
1BAAAADAP1010
English (U.S.A./CANADA)
Code No. RD158-8121-3
K
X
0
4
0
-
4
PRINTED IN JAPAN
©
KUBOTA Corporation 2012
READ AND SAVE THIS MANUAL
MODEL
040-4

Table of Contents

Questions and Answers

  • M
    Mia LeAug 14, 2025
    What to do if my Kubota KX040-4 Compact Excavator has starting difficulties?
    • J
      Justin JimenezAug 14, 2025
      If your Kubota Compact Excavator is having trouble starting, consider the following: * Ensure the lock lever is in the "LOCK" position. * Check the fuel tank and filter for viscous fuel, removing any impurities or water, and replace the filter if necessary. * Remove water from the fuel tank if there's air or water in the fuel system. Check fuel pipe joint bolts and nuts for looseness. Purge the fuel system. * If the engine runs sluggishly in winter due to high oil viscosity, pour hot water over the radiator. * Recharge the battery if it's almost dead or there's insufficient compression.
  • G
    Gail PaulAug 17, 2025
    What to do if my Kubota Compact Excavator engine suddenly stops?
    • C
      claytonrobinAug 17, 2025
      If your Kubota Compact Excavator engine suddenly stops, check the fuel level and add fuel if necessary. Also, purge the fuel system.
  • A
    Amber MooreAug 25, 2025
    Why is my Kubota KX040-4 Compact Excavator losing boom, arm, bucket, drive, swing and dozer power?
    • M
      Matthew GrayAug 25, 2025
      Low power in your Kubota Compact Excavator's boom, arm, bucket, drive, swing, and dozer can be due to: * Low hydraulic oil level, requiring you to add oil. * Leakages in hoses and/or joints, meaning you should replace the hose or joint.
  • N
    Nathaniel DavisAug 27, 2025
    Why is my Kubota Compact Excavator not having enough engine power?
    • A
      Alexis JohnsonAug 28, 2025
      Insufficient engine power in your Kubota Compact Excavator can be caused by: * Low fuel level, requiring you to check and add fuel if needed. * A clogged air cleaner, so you should clean the air filter element.
  • M
    Matthew BrownAug 31, 2025
    What does it mean if my Kubota Compact Excavator has abnormal exhaust gas color?
    • M
      Michele ShortAug 31, 2025
      Abnormal exhaust gas color in your Kubota Compact Excavator could be due to: * Poor fuel quality, suggesting you use high-quality fuel. * Too much engine oil, indicating you should drain the engine oil to the prescribed level.
  • S
    Shawn GarciaSep 3, 2025
    What to do if my Kubota Compact Excavator swing motor and front attachment does not work?
    • J
      Jordan AllenSep 3, 2025
      If the swing motor and front attachment on your Kubota Compact Excavator aren't working, ensure the lock lever is in the "UNLOCK" position.
  • K
    Katie JacobsSep 6, 2025
    What to do if my Kubota Compact Excavator has deviation of drive direction?
    • B
      barryknightSep 7, 2025
      If your Kubota Compact Excavator is deviating from its drive direction: * Check for and remove any stones blocking the tracks. * Adjust the tracks if they are too loose or too tight.
  • S
    Stacy Robinson DDSSep 10, 2025
    What to do if the system indicator light flashes on my Kubota Compact Excavator?
    • P
      Pamela EdwardsSep 10, 2025
      If the system indicator light flashes on your Kubota Compact Excavator, replace the fuse in the fuse box, as it may be defective.
  • R
    Rick MiddletonNov 19, 2025
    Why is my Kubota KX040-4 water temperature in the red zone, causing overheating?
    • R
      rjonesNov 20, 2025
      Overheating in your Kubota Compact Excavator can occur for several reasons: * A defective water pump seal requires replacement. * A worn or torn V-belt needs adjustment or replacement. * A defective thermostat should be replaced. * Low coolant level requires refilling to the prescribed level. * A clogged radiator grill or fins need cleaning. * Coolant contaminated with rust requires replacement and the addition of anti-rust. * A defective radiator cap should be replaced. * Corroded coolant pipes should be cleaned. * Continuous operation under full load requires a reduction in load. * A damaged cylinder head gasket (leading to coolant loss) requires replacement. * Low engine oil level requires filling to the prescribed level. * Maladjustment of fuel injection requir...

Summary

SAFE OPERATION

BEFORE OPERATION

Steps to take before starting excavator operation.

OPERATING THE EXCAVATOR

Instructions for safely operating the excavator.

AFTER OPERATION

Procedures to follow after completing excavator operation.

SAFE LOADING AND TRANSPORT OF THE EXCAVATOR

Guidelines for safely loading and transporting the excavator.

MAINTENANCE

Procedures and precautions for maintaining the excavator.

DANGER, WARNING AND CAUTION LABELS

Identifies and explains various danger, warning, and caution labels.

DEALER SERVICE

TECHNICAL DATA

DESCRIPTION OF MACHINE PARTS

INSTRUMENT PANEL AND CONTROL ELEMENTS

Control Pedals and Levers

Explains the function and operation of control pedals and levers.

CHECKS BEFORE START

DAILY CHECKS

Daily inspection items to ensure safe operation and prevent damage.

CHECKING THE DEVICES

How to check various devices and switches on the excavator.

LCD Display for Normal Operation

Explanation of the normal operation screen and its indicators.

Coolant Temperature Gauge

How to read and interpret the coolant temperature gauge.

Overheat warning

Describes overheat warnings and recommended actions.

Warning Lamp

Explains the function of warning lamps for system issues.

Engine oil pressure low warning

Warning for low engine oil pressure and recommended actions.

Setting the Clock

Step-by-step guide to setting the clock on the display.

Periodic Check

Notification and procedure for periodic maintenance checks.

AUX Port Flow Rate Limit Switch

How to adjust the maximum flow rate for the AUX port.

Auto Idle Switch

How to enable and disable the Auto Idle control.

Travel Speed Switch

How to switch between dual travel speeds.

Inhibit Diesel Particulate Filter (DPF) Regeneration Switch

How to disable Auto DPF regeneration cycle.

ECO MODE

How to engage ECO mode for better fuel efficiency.

Opening;Closing of CAB Door

Procedures for opening and closing the cab door.

Opening;Closing of Front CAB Window

Procedures for opening and closing the front cab window.

Opening;Closing of Side CAB Window

Procedures for opening and closing the side cab window.

Pilot Control Lock Lever

Proper use of the pilot control lock lever for safety.

OPERATION OF THE ENGINE

STARTING THE ENGINE

Step-by-step instructions for starting the engine.

STARTING WITH AN AUXILIARY BATTERY

How to start the engine using an auxiliary battery.

STOPPING THE ENGINE

Procedures for safely stopping the engine.

EXCAVATOR OPERATION

RUNNING-IN OF THE NEW EXCAVATOR

Procedures for breaking in a new excavator.

Adjusting the Operators Seat

How to adjust the operator's seat for comfort and safety.

DRIVING

Instructions and safety precautions for driving the excavator.

TWO PATTERN SELECTION SYSTEM(TPSS)

Explanation of the Two Pattern Selection System and its operation.

OPERATION OF THE BOOM

How to operate the boom for raising and lowering.

OPERATION OF THE ARM

How to operate the arm for extending and retracting.

OPERATION OF THE BUCKET

How to operate the bucket for digging and dumping.

AUXILIARY PORT OPERATION

How to use and configure auxiliary hydraulic ports.

Setting the Maximum Flow Volume

How to set the maximum flow volume for auxiliary ports.

HOW TO RELEASE PRESSURE TRAPPED IN THE HYDRAULIC SYSTEM

Procedures to safely release hydraulic system pressure.

ANTI-THEFT DEVICE (for KCL only)

Information on the anti-theft device and its operation.

IMPORTANT INFORMATION ON EXCAVATOR OPERATION

Key operational advice and warnings for excavator use.

TRANSPORTING THE EXCAVATOR ON A VEHICLE

Towing the machine

Procedures and precautions for towing the excavator.

LIFTING OF THE EXCAVATOR

Tackle

Recommended tackle and weights for lifting the excavator.

Lifting

General guidelines and safety for lifting operations.

MAINTENANCE

MAINTENANCE INTERVALS

Table of maintenance checks and their intervals.

Changing Engine Oil

Procedure for changing engine oil.

Hydraulic Oil Change (Including Replacing of the Suction Filter in the Hydraulic Tank)

Changing hydraulic oil and suction filter.

ANNUAL SERVICING

Annual maintenance tasks.

REGULAR CHECKS AND MAINTENANCE WORK

EVERY 50 SERVICE HOURS

Maintenance tasks to be performed every 50 service hours.

EVERY 500 SERVICE HOURS

Maintenance tasks for every 500 service hours.

EVERY 1000 SERVICE HOURS

Maintenance tasks for every 1000 service hours.

EVERY 1500 SERVICE HOURS

Maintenance tasks for every 1500 service hours.

EVERY 2000 SERVICE HOURS

Maintenance tasks for every 2000 service hours.

EVERY 3000 SERVICE HOURS

Maintenance tasks for every 3000 service hours.

OPERATIONS UNDER COLD WEATHER CONDITIONS

PREPARATION FOR OPERATION IN COLD WEATHER

Steps to prepare the excavator for cold weather operation.

LONG STORAGE

Should the Excavator be Stored for a Longer Period of Time, Observe Following Procedures

Specific procedures for long-term storage.

RECOMMENDED OILS

Engine Oil

Recommended engine oils based on ambient temperatures.

APPENDICES

MAIN DIMENSIONS

Key dimensions of the excavator model.

LIFTING CAPACITY

LIFTING CAPACITY OVER-END BLADE DOWN

Lifting capacity data for over-end blade down configuration.

LIST OF SCREENS

LIST OF NORMAL SCREENS

Details of normal operating screens and their meanings.

NAVIGATION LIST OF SCREENS

List of navigation messages and error indicators.

Engine oil pressure error

Message indicating low engine oil pressure and recommended actions.

Anti-theft system error

Message indicating a fault in the anti-theft system.

Raise engine speed Now HP is limited

Requirement for DPF regeneration with limited engine speed.

Kubota KX040-4 Specifications

General IconGeneral
BrandKubota
ModelKX040-4
CategoryCompact Excavator
LanguageEnglish

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