Doosan DH450 Excavator Operation & Maintenance Manual – PDF DOWNLOAD
DESCRIPTION:
Doosan DH450 Excavator Operation & Maintenance Manual – PDF DOWNLOAD
TO THE CUSTOMERS
- This operation manual is designed to serve as a reference for DHI S customers and distributors who wish to gain basic product knowledge on OHI SOLAR 450, Hydraulic excavator.
- To maintain the excavator in optimum condition and retain maximum performance for a long time, CORRECT OPERATION and PROPER MAINTENANCE are essential. Therefore, Keep this manual in the operator’s seat pocket so that you may refer to it at any time you want.
- The descriptions in this manual may be subject to changes without prior notice. If you have any question air or recommendation in connection with this Manual, please do not hesitate to contact our head office, dealers or authorized service shop
PRECAUTIONS
- In order to operate excavators, you must get excavator operation license in accordance with relevant laws, regulations and decrees.
- When you operate the excavator, please keep in mind that safety is the first.
- Before and after operation, inspect and check the excavator. Especially followings are essental. -Inspect and check level of cooling water and oil. -Replace periodically every oils and elements. -Check, clean and replace the air cleaner elements.
- Precautions in handling a new excavator. All OHI Solar 450 are thoroughly adjusted and inspected before they leave factory. However, it is important to perform a break-in operation for the first 50 hours in order to protect shortening life of the equipment.
- The diesel engine and all the hydraulic component have been inspected and correctly adjusted before leaving factory, and should not be disturbed in field. If any abnormality is found, have them repaired at nearliest OHI dealer or authorized service shop. Do not attempt to adjust components by yourself.
- Daewoo reserves the right to improve our products in a continuing process to provide the best possible product to the market place. These improvements can be implemented at any time with no obligation to change materials on previously sold products.
- It is recommended that consumers periodically contact their distributors for recent documentation on purchased equipment. This documentation may include attachments and optional equipment that is not available in your machine’s package.
- Please call your distributor for additional items that you may require. Illustrations used throughout this manual are used only as a representation of the actual piece of equipment, and may vary from the actual item.
TABLE OF CONTENTS:
Doosan DH450 Excavator Operation & Maintenance Manual – PDF DOWNLOAD
Engine views
Engine specifications
Major specifications
Detailed specifications
Operation
Inspections before operation
Starting
Inspections after starting
Operation of a new engine
Operation in winter time
Inspection and maintenance
Daily inspections
Periodical inspections and determination of maintenance term
Periodical inspections and list of maintenance term
Lubrication system
Cooling system
Intake system
Fuel system
Engine body
Recommendatory specifications of lubricating oil, antifreeze and fuel
TO THE CUSTOMERS
FOR SAFER EXCAVATOR OPERATION
ENGINE
Specifications
Construction
.General
Hydraulic System
Electrical System
Operation
Precautions in handling a new excavator
Operation of each system
Starting the engine
Stopping the engine
Warming up the excavator
Precautions in cold weather
Precautions during operation
Inspection, maintenance and adjustment
Periodic inspection and maintenance
Cautions for periodic inspection and maintenance
Inspection and maintenance table
Inspection and maintenance
Transportation
Extension and contraction of DH 0 track frames
Dimension of transportation
Trouble shootings
Engine
Electrical System
Heater
Hydraulic System
WORLDWIDE NETWORK
Valve clearance(cold engine)
Intake valves
Exhaust valves
Cooling system
Type
Forced circulation by centrifugal
impeller pump
Temperature control device Thermostat
Temperature range of cooling water 80~90°C
Lubrication system
Type
Pressurized by gear pump
Filtering device
Full flow oil filter with paper
element cartridge
Lubricant cooling device
Flat tube type oil cooler
Lubrication oil pressure
at idling0.9~3.0 bar
at maximum speed 3.0~6.5 bar
Fuel filter
Type
Double stage filtering
1st : felt element
2nd : paper element
Fuel injection pump
Type
Governor
VBELT specifications(Engine standard model)
Alternator driving VBELT
Electric devices
Alternator
Type
Capacity
Starter
Type
Capacity
Lubricating oil capacity(Engine standard model)
oil capacity
Fuel injection timing and valve opening timing
Fuel injection(BTDC) 14 deg.
Valve opening
Intake open(BTDC)24 deg.
Intake close(ABDC)36 deg.
Exhaust open(BTDC) 63 deg.
Exhaust close(ABDC)27 deg.
Turbocharge
Type
Model
Lubricant pressure
at idling min. 1.2~1.5 bar
at maximum speed
Axial clearance of rotor shaft
Radial clearance of rotor shaft
VIDEO PREVIEW OF THE MANUAL:
IMAGES PREVIEW OF THE MANUAL:
PLEASE NOTE:
- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]
S.M