| 127 kW (170 HP) at 2200 rpm

KG

| (Straight / full turn) 10.9 / 9.5 ton

| 2.5 ~ 3.1 m³

DL250A | Wheel Loader

 Take a tour pages 4 - 5
Performance pages 6 - 7
Comfort pages 8 - 9
Reliability pages 10 - 11
Maintenance pages 12 - 13
Technical specifications pages 14 - 17
Equipment pages 18 - 19

2
 DL250A – WE PREPARE THE WAY

DO YOU WANT LOWER RUNNING COSTS, THE MOST EFFICIENT TECHNOLOGY AND FIRST-
CLASS OPERATOR COMFORT?
The key phrase used during the development of the DL250A was “giving optimum value to the end user”.
This translates, in concrete terms, into:
Increased productivity thanks to the use of the powerful 8 litre engine and the excellent synchronization of the drive
train with the hydraulic system
Improved ergonomics, increased comfort and excellent all-round visibility ensuring safe and pleasant working
conditions
Improved reliability through the use of new high-performance materials, the development of new computer-assisted
design techniques and by intensive and systematic test programs. All of these combine to increase the life of vital
components and reduce operating costs
Reduced maintenance increases uptime and reduces operating costs
3
 TAKE A TOUR
COMFORT AND CONVENIENCE

Wide range of attachments

Load isolation system (option)

”Lift arm raise kick-out” and

”return to dig” functions

Latest generation ZF axles with

automatic limited slip differentials
Fenders, radiator grille,
engine bonnet and other
parts made of robust steel
3rd spool (option)

4
 Radiator made of aluminum
for better pressure resistance and less wear

3-stage air filter with Turbo 3 POWER AND FUEL EFFICIENCY

cyclone dust separator

Easy access to maintenance

components from the ground

on ZF axles with
ed slip differentials

4-gear ZF powershift transmission with automatic and

manual shift modes
Clean, solid articulation
hinge design

5
 More power that lifts productivity to new heights
n Strength and intelligence – a winning combination
Exceptional power combined with the finest workmanship results in a machine that will perform at the
highest level. The DL250A enhances your output from every angle. Impressive digging power and high
traction make penetration easy and allow you to tackle the hardest materials.
Work is quick and efficient with a powerful hydraulic system.
At the heart of the loader is the new DOOSAN D1146T Turbo-charged air-cooled intercooler engine.

Hydraulic power steering Z-kinetics

The newly designed steering system ensures smooth steering even The Z lifting geometry is very robust and especially designed for
in the low engine speed ranges. And the emergency steering system heavy loads. Few moving parts, reduced stress, simplicity,… every
(option) is a safety feature in the event of a malfunction of the steering thing contributes to good loader stability. This geometry enables very
system while travelling. rapid bucket movements and ensures correct angle positioning in all
situations. The rapid bucket dump capability makes it easier to unload
adhesive materials.

6
 DOOSAN D1146T TURBO-CHARGED 8 LITER
ENGINE
Our many years of experience in engine design and production
have resulted in the emergence of a highly efficient and very
powerful engine.

power output in its class

Automatic transmission
The transmission is particularly smooth and the gear ratios are
optimized. There are no shocks, resulting in an appreciable level of
comfort for the operator. The traction force is optimum under all
working conditions.
The combination of these characteristics enables the loader to
maintain high speed under all conditions, enhances breakout forces
and thus optimizes bucket filling at each cycle.

The transmission has three modes of operation:

Axles
Improved internal oil flow greatly reduces the temperature difference
between the hub and the differential, as well as prevents premature
disc wear due to overheating of the internal hub components.

Limited-slip ZF differential
The front and rear axles are fitted with limited-slip differentials. This
automatically ensures maximum tractive effort and easy driving over
soft and muddy ground. It also reduces the risk of skidding and, at the
same time, prevents excessive tyre wear.
The brake discs integrated into the planetary reduction gears in the
hubs are metal reinforced, ensuring long hours of operation and
reduced maintenance.

The brake piping has been integrated into the axle

housing and is protected from damage from external
shock when the machine drives over rough terrain.

Increased axle durability and machine stability

The brake discs have been repositioned to the rear part of the reduction gear where the rotation speed is lower. As a result, the discs are exposed to lower
rpm, heat generation is reduced and the life span of the discs is greatly extended. This positioning provides excellent machine stability. An automatic disc
clearance regulator has been integrated into the design and the disc clearance is maintained at the optimum level at all times as the discs wear out. This
prevents any lag in brake response. Another convenient feature is that brake disc wear can easily be measured without disassembling the hub.

7
 Comfort at its best – take a seat!
n The workspace you’ve always wanted
The productivity of your wheel loader is directly linked to the operator’s performance. That’s why
Doosan has placed comfort at the very centre of its design priorities for the DL250A. More space, better
visibility, air conditioning, a comfortable seat and plenty of storage space make it easy to work for hours
without fatigue or discomfort. There’s no need to pay extra for the options you want – most of them are
standard features on this loader.

Precise control levers (option) Sunvisor & room mirror Steering column Arm rests
Different options are available Featured as standard for extra The steering column is Correct positioning with clear
to match what the operator is comfort when operating. controls makes the operator’s
accustomed to as well as an and features both tilting and task easier.
optional auxiliary lever. telescopic functions.

8
Air conditioning & defroster system
Double filtered air cab, air ducts are distributed throughout the cab with proportional sensitive controls and
air re-circulation facility. We offer the same comfort as a passenger car.

Central indicator panel Lateral console

A high-visibility indicator panel allows the operator to check essential The ergonomically laid out switch panel in line with the natural
loader functions. movements of the body allows very convenient operation. Provision is
made to install switches for additional equipment if required.

9
 Doosan reliability – whatever the job!
n Dependable performance for low lifetime cost
Doosan has been building heavy construction equipment for 40 years. This long experience is reflected
in the superior design and development of our wheel loaders as well as by an extensive logistics
network. The operator knows that the DOOSAN loader is a tough, durable product with large power
reserves, which he can rely on to work for long periods.
For DOOSAN, reliability means simplicity of design, durability and maximum uptime.

Designed to last
We pay the highest attention to the design and manufacture of structural components.

reliability.

Reinforced bucket
The lower and side panels of the bucket have been reinforced with
additional plates.
Reinforcements:

ORFS - all ports Radiators mounted on Front combination lamp Rear combination lamp
To ensure perfect tightness, all rubber mounts With the application of high- A semi-permanent lamp life
ports, even the low pressure The aluminium radiators are grade Hella products, the lamp has been secured with the
ports which are used for the mounted on rubber mounts to life has extended much more. application of LED-type stop
pilot lines, are ORFS type. effectively withstand vibrations. and position lamps.

10
Propeller shaft Radiator grill
A cover has been fitted to protect the oil seal from dust and foreign The radiator grille is made of reinforced steel for increased shock
resistance.

11
 Easy maintenance for more uptime
A liquid crystal display conveys information about the ZF transmission. At the same time, it reports the
nature of any problem. When servicing the loader, a special tool can be used to adjust the clutch discs
to compensate for their wear. Additionally, by connecting a laptop computer, a complete transmission
diagnostic can be performed.
Short and simple maintenance operations at long intervals mean that your machine is available on site
when you need it. Our service centre has more than 40000 parts in stock to supply you with top quality
components as quickly as possible.

Hydraulic oil return filter Central joints

The hydraulic oil return filter, made of glass fibre, eliminates up to
99.5% of foreign particles. It effectively protects the hydraulic circuit ment points are positioned to withstand bending and torsion forces.
and extends service intervals. A large amount of space has been left to allow easy access to internal
components.

Air cleaner Greasing ports

The forced-air cleaner removes 99% of particles. It is preceded by a The front pins can be lubricated from the outside of the machine
high capacity Turbo pre-filter. The cleaning and cartridge replacement without having to crawl under it or make awkward movements to
intervals are very long. reach the lubrication ports.

Transmission filters Brake & pilot filter Convenient transmission oil filling
The transmission filters are easy to reach and can The pilot filter is easy to replace and The oil filler pipe is located near the articulation
be checked from ground level, like all other protect hydraulic system.
maintenance components.

12
Easy access
All maintenance and control points are easy to reach from ground level.

Transmission diagnostics Engine oil & coolant drain

The laptop PC “monitoring” function allows the status of the transmission Drain valves have been installed in an easily accessible location for
to be checked very easily. convenient draining of fluids. (coolant, engine oil)

13
 Technical specifications

Q Engine Q Transmission
4-Gear powershift transmission with 3 operating modes: manual,
Doosan D1146T fully automatic or semi-automatic with ‘kick-down’ function. Based
Turbo-charged, on high quality components. Equipped with a modulation system
for protection and smooth gear and direction changes. A manual
transmission control lever is located to the left of the operator.
Direction change function also available in automatic or semi-
6
automatic mode. Transmission can be disengaged by the brake
pedal to deliver full engine power to the hydraulics. A safety device
127 kW (172 PS - 170 HP) at 2200 rpm (SAE J1995) prevents the engine from starting if the transmission is not in

127 kW (170 HP) at 2200 rpm (SAE J1995) PC-compatible for operation history monitoring.

72 kgf/m (706 Nm) at 1300 rpm

ZF 4 WG 190
970 ± 50 / 2370 ± 50 rpm
Simple stage / mono phase / fixed wheel stator
8071 cm³ 4 Speed, full auto power-shift, countershaft,
engine remote mounted with propeller shaft & damper

111 mm x 139 mm
Forward: 7.3 - 12.0 - 23.6 - 36.5 (1 - 2 - 3 - 4)
Reverse: 7.7 - 12.6 - 24.7 (1 - 2 - 3)
24 V / 6.0 kW

13.8 tons
2 x 12 V / 150 Ah

58% / 30°
3-stage air filter with Turbo 3 cyclone dust separator.

11.1 m at 34 km/h

118 kN

Q Lift arm Q Axles

Z-kinematics with simple lifting piston system designed for heavy
duty. 12.0 ton breakout force combines with a bucket angle that is Fully suspended front and rear drive axles with planetary reduction
maintained throughout the range of movement. Bucket angles are gears in the hubs. Front and rear equipped with limited slip
optimised in the travelling position and at ground level. Load Isolation differentials. Optimum traction in all conditions. 13.8 ton traction
System (LIS) for improved comfort and output (option). power allows operation on slopes of 58%.

Cylinders Quantity Bore x rod diameter x stroke (mm)

Front (45%) / Rear (45%)
Lift 2 140 x 80 x 790

Bucket 1 160 x 80 x 510

+/- 11°

Dual multi-disc circuit with sintered metal discs for extended service
life. Braking system activated by a pump and accumulator circuits.
Spring-applied, hydraulically released parking brake mounted on the
transmission shaft.

14
Q Hydraulic system Q Cab
The hydraulic system consists of triple section vane pump. Spacious modular cab with excellent all-round visibility and ample
storage space. Good overview of the bucket, tyres and loading
area. Push button controlled air conditioning and heating with air
recirculation function. Double cab air filter installed in the cab with
Triple section vane pump
extra protection for the operator in dusty or polluted environments.
Viscous suspension mount for maximum comfort. High quality heated
127 l/min seat with air suspension (option). All operating information clearly
displayed in front of the operator. Control functions are centralised on
196 bar

Automatic functions for positioning the bucket for digging

as well as a function for stopping the lift arm at the desired 1

standard. 2
A simple levelling function is also standard.

ROPS ISO 3471:2008

In the oil return to the tank, the glass fibre filter has a filtering FOPS ISO 3449
capability of 10 micron.

LwA external noise: 108 dB(A) (ISO 6395)

Lift arm: up: 5.4 / down: 3.4 LpA operator noise: 73 dB(A) (ISO 6396)
Bucket dump: 1.4

Q Steering system Q Pressure settings

Sensing type. Working (pump cut-off ): 200 ± 5 bar
Steering relief (LS port side): 175 ± 5 bar
(steering pump side): 200 ± 5 bar
40° Pilot control: 28 + 2 bar
Brake accumulator charging: 125 bar
Service brake: 60 ± 3 bar
139 l/min
Parking brake release: 120 ± 5 bar
Transmission selection pressure : 16 ± 2 bar
Emergency steering system with electric motor-driven hydraulic pump
(option).

Cylinders Quantity Bore x rod diameter x stroke (mm)

Steering 2 70 x 35 x 430

Q Fluid capacities (litres)

Fuel tank: 275
Cooling system: 50
Engine oil: 21
Front axle: 35
Rear axle: 22
Gearbox and converter : 45 l
Hydraulic system: 174 l

15
 Dimensions and operational data

B
F

16
Q Dimensions & operational data

Bucket mounting Pin-on

Tyre size 20.5-25-16PR (L3)

Configuration Teeth Bolt-on Teeth Bolt-on

edge edge
Capacity heaped ISO/SAE m³ 2.5 2.6 3.0 3.1
Tooth type Mono - Mono -
U/B Bucket width mm 2740 2740 2840 2840
Breakout force ton 118 118 108 108
Static tipping load (straight) kg 10952 10832 10818 10689
Static tipping load (at full turn) kg 9495 9391 9379 9267
A Dump height (at 45° – fully raised)* mm 2802 2880 2739 2817
B Dump reach (at 45° – fully raised)* mm 1176 1106 1244 1174
Dump height (at max. dump – at max. reach)* mm 660 755 575 675
Dump reach (at max. dump – at max. reach)* mm 1535 1500 1570 1535
E Digging depth mm 97 97 97 97
F Height at bucket pivot point mm 3957 3957 3957 3957
G Max. tilt angle in carry position ° 50 50 50 50
H Max. tilt angle fully raised ° 61 61 61 61
I Max. tilt angle on ground ° 44 44 44 44
Max. tilt angle at max. reach ° 61 61 61 61
Max. dump angle at max. reach ° 67 67 67 67
Max. dump angle on ground ° 67 67 67 67
M Max. dump angle fully raised ° 45 45 45 45
R External radius at tyre side mm 5450 5450 5450 5450
D External radius at bucket edge mm 6097 6071 6166 6126
C Wheel base mm 3020 3020 3020 3020
Q Width at tyres mm 2530 2530 2530 2530
J/F Tread mm 2040 2040 2040 2040
S Ground clearance mm 428 428 428 428
T Overall length mm 7704 7599 7808 7703
V Overall height mm 3321 3321 3321 3321
Operating weight kg 14200 14310 14280 14400

* Measured to the tip of the bucket teeth or bolt-on edge. All dimensions given with 20.5-25-16PR (L3) tyres.

17
 m³ SAE Bucket capacity Density of operating materials
Kg/m³

3.1 2000
1800
1600
3.0
1400
1200
2.6 1000
800
600
2.5
Product density 400
Snow

Coke

Coal

Loam

Earth

Gravel

Sand

Rocks (crushed)

Granite (shale)

Basalt

Calcium rock

Sandstone

2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 tonnes/m³

Bucket filling factor

95 % 100 % 115 %

The filling factor depends on the type of material, the working conditions and the The specific weight of the material largely depends on the level of humidity,
experience of the operator. the degree of compaction, composition, etc.

18
Standard and optional equipment

Q Standard equipment Q Optional equipment

Engine Tyres
Three-stage air cleaner with Turbo 3 cyclone pre-cleaner, inner filter and external L3, various brands
plugging indicator on the dashboard Lifting and hydraulic system
Fuel filter Hydraulic control valve with 3 spools
External drains for engine oil and coolant changes Additional lever for 3rd function
Lifting and hydraulic system Two hydraulic levers for 2 spools with FNR switch
Robust Z bar lifting system Three hydraulic levers for 3 spools with FNR switch
General purpose bucket 2.5 m³ (SAE, heaped) Load isolation system (LIS)

Hydraulic control valve with 2 spools Steering system

Automatic lift arm kick-out Emergency steering pump driven by electric motor
Automatic bucket return to dig External equipment
Levelling function (floating mode) Full fenders with rubber protector
Fast couplers for hydraulic check Additional counterweight
Fixed triple vane pump system Wheel chocks
Mono control lever with kickdown switch Bottom protection plates
Steering system Lift arm float kick-out
Load sensing steering system Electric system
External equipment Rotating beacon
Lifting hooks Fuel filling pump
Articulation lock in the transport position Other
Towing hitch Tool kit
Tool compartment Mudguard
Semi fenders Cab
Electric system Air suspension seat
Alternator 60 A / 24 V Attachments
Work lights: 2 at the front and 4 at the rear (6 x 70 W) Bucket: Bolt-on teeth (BOT) 2.5 m³ , 3.0 m³
Travel lights: low and high beam Bucket: Bolt-on cutting edge (BOC) 2.6 m³, 3.1 m³
Tail indicators, stop, reversing lights Various types of other attachments
Reverse travel alarm
Drive line and brake system
Transmission clutch cut-off via the brake pedal
Transmission with self-diagnosis and monitoring indicator with electronic plug for fast

Transmission mode selector switch (Manual / Auto 1 ‹–› 4 / Auto 2 ‹–› 4 with kick-down)
Starting safety system
Selection lever at left of the steering wheel for kickdown and travel direction
Limited slip differentials on front and rear axles
Dual brake circuits with accumulator
Tyres: 20.5-25-16PR (L3)
Dual service brake pedals
Parking brake on the transmission, spring-applied hydraulic release
Cab
ROPS cab (SAE J 394, SAE 1040, ISO 3471) - FOPS cab (SAE J 231, ISO 3449)
Air conditioning / heating with recirculation function
Double filtered air cab
Mechanical seat with 2” safety belt

Floor mat
Tinted glass
Left sliding window
Front and rear wiper and washer
Sun visor
Interior cab light
Interior and exterior rear view mirrors (2 + 2)
Machine monitoring (dials, gauges and lamps)
Main switches in front of the driver
Switches for the general functions in the right console
Horn
Cigarette lighter and 12 Volt power socket Load Isolation System (LIS) Fingertip control
Cup holder The bucket is suspended using 3 lever control for lift arm, bucket
Multiple storage compartments a closed accumulator to reduce and 3rd circuit. FNR switch for
Radio antenna built into rear window material loss as well as stress on the changing travel direction as well
driver and machine structure. The as kick-down, return to dig, lift arm
MP3 / CD player and speakers & connection for radio system is automatic and depends raise kick-out and floating mode.
Digital clock on the speed of operation.

Some of these options may be standard in some markets. Some of these options may
not be available for certain markets.
Please check with your local DOOSAN dealer for more information about availability or
to adapt your machine to your application needs.

19
Doosan Infracore
The pulse of transformation

Construction Equipment Machine Tools Engines

The spirit of challenge and innovation has led Doosan. We started out as a small store in Seoul in 1896 and have expanded into a global company.
Today we are engaged in the infrastructure support business (ISB), which encompasses industrial facilities, machinery, heavy equipment and
construction. You can also see the Doosan brand in various other industries.

You are invited to take a closer look at the new world that is being built by Doosan, visit us at:
www.doosaninfracore.com and www.doosanequipment.eu

Doosan Infracore Construction Equipment

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