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
CHECKS BEFORE START8
C Fuel level audible indication switch (when
refueling)
1. With the starter key at the "OFF" position, press the
fuel level audible indication switch, and the fuel level
can be checked by the buzzer.
2. Start refueling the machine. The buzzer beeping
intervals vary according to how much fuel is poured
into the tank. As the fuel tank is filled up, the buzzer
will sound almost continuously.
3. While refueling the machine, listen to the buzzer to
know how much the fuel tank is filled.
4. If fuel is poured too slowly, the buzzer will stop
beeping. When resumed normally, the buzzer will start
beeping.
5. To stop refueling halfway (before filling up), press the
fuel level audible indication switch or simply stop
refueling for a while. The buzzer will stop sounding.
C Coolant Temperature Gauge
To avoid personal injury:
A Do not open the radiator cap during or just after
operation. Hot coolant may gush out and scald
you. Wait for the coolant to cool down before
opening the cap.
With the starter key at the "RUN" position, the coolant
temperature is indicated.
If the coolant temperature indicator is near "H", take the
steps below.
Depending on the coolant temperature, the warning
message "Water temp. is rising" or "Overheat Engine
to idle for cooling" appears. In either case too, follow the
same procedure below.
1. Discontinue the job.
2. Reduce engine rpm's to idle and keep it at idle for 5
minutes.
3. Stop the engine and check the following points (1)-(4).
(1) Low coolant level or leak
(2) Fan belt tension
(3) Mud or dust deposits on radiator
(4) Hydraulic oil leak
(1) Coolant temperature gauge