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
99LIST OF SCREENS
No.
Message
Problem or failure
(What happened)
Machine behavior
(Provisional measure)
Correction
14
Cool-down during
overheat idling
The engine automatically
reduces rpm's avoid an
overheat.
Leave the engine idling until
this warning disappears.
Do not stop the engine
because the coolant
temperature will increase
sharply and may boil and
gush out. Be sure to cool
down the engine without
stopping it.
Refill the radiator with
coolant by its boiled-over
amount. Unclog the radiator
and other components
before use again.
Check also the hydraulic
system for oil leak and other
troubles.
If an oil leak is found,
immediately contact your
local dealer for repair.
15
Water temperature
sensor error
Water temperature sensor
error system is in trouble.
The meter does not show
water temperature.
Press the display selector
switch, and the normal
display is switched back.
The machine's other
functions are operative, but
an overheat and other
problems cannot be
detected.
Immediately contact your
local dealer.
16
Lock lever system
error
The lock lever system is in
trouble.
The engine can run, but the
machine fails to move.
Immediately contact your
local dealer.
17
Travel 2-speed
system (switching)
The 2-speed switching
system is in trouble.
The machine still runs at low
speed without switching to
high speed.
The machine's other
functions are still operative.
Immediately contact your
local dealer.
18
AI system error
The Auto Idle system is in
trouble.
The accelerator fails too.
The accelerator fails, but the
machine's other functions
are still operative.
Move the machine to a place
suited for repair.
Immediately contact your
local dealer.
19
5V short-circuit
The sensor's 5V power
supply is short-circuited.
The majority of systems fail.
* The engine may get started
and the machine may move.
But do not try any jobs.
(Just move the machine to a
safe place.)
Immediately contact your
local dealer.