OPERATOR'S MANUAL
Table Of Contents
- OPS - Excavator U48-4 (RD45881312)
- 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
- Starter Switch
- Display Selector Switch
- LCD Display for Normal Operation
- Warning Lamp
- LCD Display for Warning
- Setting the Clock
- Reordering the year/month/day and Changing the AM/PM System to the 24 hour one
- Log Record
- Periodic Check
- If all the Check Points are not Displayed at a Glance on a Single Screen
- When the Checkup is Completed
- Horn Switch
- Working Light Switch
- AUX Port Flow Rate Limit Switch
- Auto Idle Switch
- Throttle Potentiometer
- Travel Speed Switch
- CAB Type Machines
- Air Conditioner
- Handling the Safety Devices
- Operation of the Engine
- Excavator Operation
- Running-In of the New Excavator
- Starting
- Driving
- Turns
- Up and Downhill Driving
- Parking on a Slope
- Operation of the Dozer
- Two Pattern Selection System (TPSS)
- Operation of the Boom
- Operation of the Arm
- Operation of the Bucket
- Unit Swing and Boom Swing Operation
- Auxiliary Port Operation
- 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
- Daily Checks
- Checking Coolant Level
- Checking Fuel Level
- Checking Engine Oil Level
- Checking Hydraulic Oil Level
- Checking V-Belt
- Checking Radiator and Oil Cooler
- Checking Washer Liquid
- Cleaning Pre-Cleaner
- Checking and Cleaning Engine and Electrical Wiring
- Greasing Boom Swing Fulcrum
- Washing Whole Machine
- Greasing Front Attachments (without Bucket Pin and Boom Swing Fulcrum)
- Greasing Bucket Pin and Bucket Link Pin
- Regular Checks and Maintenance Work
- Other Adjustments and Replacements
- Troubleshooting
- Operation Under Cold Weather Conditions
- Long Storage
- Recommended Oils
- Appendices
- Lifting Capacity
- List of Screens
2 TECHNICAL DATA
TECHNICAL DATA
A Above dimensions are based on the machine with rubber track.
A Specifications subject to change without notice.
D With unloaded digging bucket. (JPN STD Bucket)
D Firm compacted soil.
D Operators must exercise extra caution and follow instructions in the operator's manual.
D Worse condition or heavier attachment to the above will decrease climbing angle.
A ROPS/FORS structure complies with standards ISO 3471, ISO 3449 and OSHA regulations
KUBOTA EXCAVATOR
Model name U48-4
Type Canopy CAB
Operating weight
(including operator's)
kg 4685 4775
Engine
Type
Water cooled 4 cycle diesel
engine with 4 cylinder
Model name
(No air conditioner type)
V2607-DI-E3-BH-6
(Air conditioner type)
V2607-DI-E3-BH-4
Total displacement cc 2615
Engine power SAE
J1955 gross
kW 31.2
Rated speed rpm 2200
Low idling speed rpm 1050 to 1200
Performance
Unit swing speed rpm 9.3
Travel
speed
Fast km/h 4.9
Slow km/h 2.8
Ground pressure
(With operator)
kPa
(kgf/cm )
27.3
(0.278)
27.9
(0.285)
Max. climbing angle % (deg) *36 (20)
Angle in case of
crossing slope
% (deg) *27 (15)
Dozer Width x Height mm 1960 x 410
Boom swing angle
Left rad (deg) 1.20 (70)
Right rad (deg) 0.96 (55)
Pressure
connection
for
attachments
Max.
displacement
L / min
65 (AUX 1 port)
37 (AUX 2 port)
Max. pressure
MPa
(kgf/cm )
[AUX1 port] 20.6 [AUX 2] 17.2
(210) (175)
Fuel tank capacity L 68