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
31EXCAVATOR OPERATION
3. Activate the dozer control lever to raise the dozer.
BDrive Levers(Right,Left)
To avoid personal injury or death:
A When driving the excavator keep the dozer
blade in front. To move the excavator forward,
move the drive levers to (A) and to move in
reverse, move the drive levers to (B) with dozer
blade in front. If the dozer blade is behind
operator station, then the controls are
reversed, moving the excavator forward will
require (B) and moving the excavator
backwards will require (A), but this is not
recommended.
Pushing the drive levers forward, moves the excavator
forwards, and vice-versa. The front of the excavator is the
side where the dozer is located; the drive sprocket is in the
rear of the excavator.
TURNS
To avoid personal injury:
A Do not change direction on steep slopes, or the
excavator could tip over.
A Before changing direction, beware of people in
the work area.
BPivot Turn
A Movement as illustrated is done with the dozer blade
in front of the operator.
C Change of Direction while Travelling
1. While travelling forward, bring the left drive lever into
the neutral position;
the excavator will turn in the direction of the arrow of
the illustration below.
2. While travelling backward, bring the left drive lever into
the neutral position;
the excavator will turn in the direction of the arrow of
the illustration below.
(1) Dozer control lever
(2) Dozer
(A) "Raise"
(B) "Lower"
(1) Drive lever (left)
(2) Drive lever (right)
(A) "Forward"
(B) "Backward"
(C) "Straight"
(A) "Travelling forward" (N) "Neutral position"
(B) "Travelling backward" (N) "Neutral position"