Part of the Kubota Operator Manuals.
This is the factory operator's manual for the Kubota U48-4 compact excavator, covering machines built with the V2607-DI-E3-BH-6 and V2607-DI-E3-BH-4 diesel engines. It is a 124-page reference delivered as a downloadable PDF you can open on a phone, tablet, or shop computer and print whenever you want a page beside the machine.
Inside you get the full operating procedure: instrument panel and LCD display, pre-operation and cab controls, engine starting including cold-weather and auxiliary-battery starts, dozer operation, and the Two Pattern Selection System. It also carries maintenance intervals, other adjustments and replacements, recommended oils, lifting capacity tables, and a troubleshooting section covering engine, hydraulic, drive, and AI system faults.
With it you can operate the U48-4 correctly, follow the service schedule, read warning screens, and work through common problems before they cost you a day of downtime.
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Abbreviation List | 2 | Api, Astm, Cece, Din, En, FOPS, ROPS, Sae |
| General Symbols | 3 | Safety Alert Symbol, Warning Lamp Meanings, Operation Directions, Read Operator's Manual, Lock/Unlock, Engine Stop Control Lamp |
| Foreword & Safety First | 4 | Kubota Quality Engineering, Manual Importance, Safety Alert Symbol, DANGER/WARNING/CAUTION Definitions |
| Safe Operation | 9-21 | Before Operation Checks, Operating the Excavator, Safety for Children, Safe Loading and Transport, Maintenance Safety, Danger/Warning/Caution Labels |
| Machine Overview & Technical Data | 23-25 | Dealer Service, Technical Specifications, Machine Part Identification, Engine/Excavator Serial Numbers, Operating Weight, Engine Power |
| Instrument Panel & Control Elements | 26-27 | LCD Display, Starter Switch, Throttle Potentiometer, Travel Speed Switch, Horn Switch, Control Pedals and Levers |
| Pre-Operation Checks & Cab Controls | 28-45 | Daily Checks, Starter Switch Operation, Display Selector Switch, LCD Display (normal/warning), Clock Setting, Log Record, Periodic Check |
| Operation of the Engine | 46-49 | Starting Engine (normal/cold Conditions), Auxiliary Battery Start, Check Points After Starting, Stopping Engine, Precautions in Case of Overheat |
| Excavator Operation | 50-69 | Running-In of New Excavator, Adjusting Operator's Seat, Driving (Levers, Turns, Slopes), Dozer Operation, Two Pattern Selection System (Tpss), Boom/Arm/Bucket Operation |
| Transporting & Lifting | 70 | Transporting on a Truck, Towing the Machine, Lifting of the Excavator, Shackle/cable Requirements, Lifting Capacity Guidelines |
| Maintenance & Service Schedules | 52-78 | Maintenance Intervals, Opening/closing Covers, Tool/grease Gun Storage, Daily Checks, Service Hour Checks (50, 200, 250, 500, 1000, 1500, 2000, 3000 Hrs), Annual/Biennial Servicing |
| Other Adjustments & Replacements | 79-83 | Purging of the Fuel System, Adjustment of Tracks (rubber/steel), Changing the Bucket, Fuses (Replacing, Capacities, Circuits), Auxiliary Electric, Slow Blow Fuse |
| Troubleshooting & Error Screens | 84-85 | Engine Issues, Hydraulic System Faults, Drive System Problems, Ai System Errors, Display Screen Messages, Warning Messages, System Errors, Periodic Check Notices |
| Cold Weather, Storage & Fluids | 86-89 | Preparation for Cold Weather, Procedure After Done Work, Long Storage Procedures, Operating After Long Storage, Recommended Oils (Engine, Hydraulic, Gear, Grease, Fuel) |
| Dimensions, Lifting Capacity & Specifications | 90-95 | Main Dimensions, Lifting Capacity Tables (Over-Front, Over-Side, Blade up/down), Rubber/steel Track Lifting, Engine Specifications, Performance Data, Fluid Capacities |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel tank capacity | 68 L | p. 24 |
| Engine oil volumes (with engine oil filter) | 9.0 L | p. 93 |
| Operating weight (CAB) | 4775 kg | p. 24 |
| Engine power SAE J1955 gross | 31.2 kW | p. 24 |
| Rated speed | 2200 rpm | p. 24 |
| Unit swing speed | 9.3 rpm | p. 24 |
| Travel speed (Fast) | 4.9 km/h | p. 24 |
| Max. pressure (AUX1 port) | 20.6 MPa | p. 24 |
| Max. pressure (AUX2 port) | 17.2 MPa | p. 24 |
| Drive unit oil volume | 0.9 L | p. 93 |
| Hydraulic tank oil volume | 45 L | p. 74 |
| Whole hydraulic oil volumes | 79 L | p. 74 |
