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
77REGULAR CHECKS AND MAINTENANCE WORK
Stop the engine, then remove the key and wait until it has
cooled down completely.
1. Open the drain plug on the bottom of the radiator and
drain coolant completely. Should a recovery tank be
equipped, disconnect the line from the tank floor and
then open the drain cock.
2. To clean, rinse the radiator with water.
3. Close the drain plug, and fill the radiator and the
recovery tank with coolant fluid. Let the engine idle for
about 5 min. Stop the engine and remove the key.
4. Check the coolant level of recovery tank and add the
coolant if necessary.
5. The shipped machine has been filled with 50% anti-
freeze solution.
A Do not operate the engine without coolant.
A To fill the radiator system and the recovery tank, use
fresh water and anti-freeze fluid.
A When the anti-freeze is mixed with water, the anti-
freeze mixing ratio must be less than 50%.
A Tighten the radiator cap properly. If the cap is loosely
or not properly fitted, overheating of the engine can
result due to coolant fluid loss.
BReplacing Fuel Hoses and Clamps
Replace the hoses and clamps.
(See "Checking Fuel and Intake Air Line" in "EVERY 200
SERVICE HOURS")
(1) Drain plug
(1) Radiator cap
(1) Recovery tank (A) "FULL"
(B) "LOW"
Cooling water
Canopy Approx. 7.8 L
Cabin Approx. 8.1 L
(1) Fuel lines
(2) Clamp bands