Part of the Kubota Operator Manuals.
This is the Kubota operator manual for the KX057-4 and U55-4 compact excavators, both powered by the Kubota V2607-DI-E3 diesel. It covers Canopy and CAB machines and takes owners through daily checks, operation, maintenance, and fault finding for these two closely related models.Inside you get the technical data and serial number locations, the instrument panel and LCD switches, engine starting including cold conditions and auxiliary battery, and the running-in guidance for a new excavator. Maintenance intervals, adjustments, track and bucket procedures, recommended oils, and the dimension and lifting-capacity tables are all included.A troubleshooting section covers starting difficulties, low power, overheating, and hydraulic and drive faults, and a display messages section explains the on-screen warnings and errors. It is a searchable PDF you can download now, print, or keep on a phone or tablet in the cab.
What's Inside This Kubota KX057-4, U55-4 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safe Operation | - | Before Operation, Operating the Excavator, Safe Loading and Transport, Maintenance, Danger/Warning/Caution Labels, Care of Labels |
| Dealer Service & Technical Data | - | Excavator Serial Number, Engine Serial Number, Model Specifications (KX057-4, U55-4), Operating Weight, Engine Type, Fuel Tank Capacity |
| Machine Components & Controls | - | Depicted Contents (Bucket, Arm, Boom, Dozer, Cab), Instrument Panel Switch (LCD, Horn, Travel Speed, Starter, Throttle), Control Pedals and Levers |
| Pre-Operation Checks | - | Daily Checks, Checking Devices (Starter Switch, Display Selector, Warning Lamp, Clock Setting, Log Record), Cab Type Machines (Wiper/Washer, Heater, Door, Window) |
| Engine Operation | - | Starting the Engine, Starting Under Cold Conditions, Starting with Auxiliary Battery, Check Points After Starting, Stopping the Engine, Precautions in Overheat |
| Excavator Operation | - | Running-In of the New Excavator (Do Not Work with Full Engine Rpm's or Full Loads During the First 50 Working Hours, Oil Change in the Run-In Stage, Operator's Seat, Seat Belt) |
| Transport & Lifting | - | Transporting on a Truck, Towing the Machine, Lifting with Cables or Straps, Safety Aspects, Lifting Procedure, Tackle Weights |
| Maintenance Procedures | - | Maintenance Intervals |
| Adjustments and Replacements | - | Purging of the Fuel System, Tracks (Special Information When Using Rubber Tracks), Changing the Bucket |
| Troubleshooting | - | Engine Starting Difficulties, Insufficient Engine Power, Engine Stops, Overheating, Hydraulic System Issues, Drive System Issues, Ai System Errors |
| Cold Weather & Long Storage | - | Preparation for Cold Weather, Anti-Freeze Mixing Ratio, Storage Procedures, Operating After Long Storage, Periodic Component Replacement |
| Recommended Oils | - | Engine Oil, Gear Oil, Hydraulic Oil, Grease, Fuel (Viscosity Grades, MIL-Standards) |
| Dimensions & Lifting Capacity | - | Main Dimensions (KX057-4, U55-4), Lifting Capacity (Iso 10567), Load Tables (KX057-4 |
| Display Messages & Errors | - | Normal Screens (Glow, Default, Tachometer, Aux Port), Navigation List of Screens (Clock Setting, Lock Lever, Fuel Errors, Charging System, Overheat Warning) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine oil filter cartridge replacement interval | every 250 hrs | p. 75 |
| Air filter element (outer) cleaning interval | every 200 hrs | p. 75 |
| Air filter element (outer) replacement interval | every 1000 hrs | p. 75 |
| Fuel filter cartridge replacement interval | every 500 hrs | p. 75 |
| Water separator draining interval | every 50 hrs | p. 75 |
| Hydraulic hoses replacement interval | Every 2 years or 4000 hours | p. 111 |
| Air-conditioner pipes and hoses check interval | every 1 year | p. 77 |
| Swing bearing teeth greasing interval | every 50 hrs | p. 75 |
| Swing bearing teeth grease amount | approx. 50g of grease (approx. 20 to 30 pumps with the grease gun at each position) | p. 66 |
| Coolant check interval | Daily check | p. 75 |
| Coolant change interval | every 2 years | p. 75 |
| Overheat warning message (high coolant temperature) | "Water temp. is Rising" | p. 32 |
Kubota KX057-4, U55-4 Common Problems This Manual Covers
Overheating from clogged cooling
Debris buildup on the radiator and screens is a frequent cause of overheating on these excavators. The maintenance section covers the cooling checks and coolant service that keep temperatures in range.
Manual Section: Maintenance Procedures p. 75Hydraulic power drop or oil leaks
Weak hydraulics usually trace to low oil or leaking hoses and joints. The troubleshooting section lists low hydraulic oil level and leakage of hoses or joints as causes for reduced performance.
Manual Section: Troubleshooting p. 107Missed grease points and swing wear
The daily grease points are numerous and easy to skip, especially the swing and blade fittings, which leads to wear. The maintenance section lists the greasing intervals and amounts.
Manual Section: Maintenance Procedures p. 75Engine starts poorly or runs rough
Hard or inconsistent starting often comes from low fuel, a dirty air filter, or water in the fuel. The engine operation section covers starting, cold-condition starting, and starting with an auxiliary battery.
Manual Section: Engine Operation p. 47Track tension and undercarriage wear
Neglected track tension and undercarriage inspection lead to premature wear. The adjustments and replacements section covers the tracks and the special notes for using rubber tracks.
Manual Section: Adjustments and Replacements p. 80Decoding display warnings and errors
Owners often need to interpret an on-screen message such as a rising water temperature or lock-lever warning. The display messages section lists the normal screens and the navigation of warnings and errors.
Manual Section: Display Messages & Errors p. 123Frequently Asked Questions
Which models does this manual cover?
It covers the Kubota KX057-4 and U55-4 compact excavators, both running the Kubota V2607-DI-E3 diesel, in Canopy and CAB versions.
Is this an operator manual or a service manual?
It is the operator manual. It covers safe operation, controls, maintenance intervals, adjustments, troubleshooting, and the display messages, rather than full engine or hydraulic overhaul procedures.
Does it explain the warning and error messages?
Yes. The display messages section covers the normal screens and the navigation list of warnings, including clock setting, lock lever, fuel errors, charging system, and overheat warnings. p. 123
Does it give maintenance intervals?
Yes. The maintenance section lists service intervals for engine oil, filters, fuel and water separator, hydraulic hoses, and greasing points across the machine. p. 75
What exactly do I receive with this Kubota KX057-4 Operator Manual?
Checkout gets you a 131-page searchable PDF, available to download right away. Open it on a laptop, tablet, or phone and take it straight to the shop floor.
Am I able to print pages from this manual?
No restrictions at all. The PDF is DRM-free, so print whatever sections you want for the shop. Standard letter or A4 paper both work.
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