Doosan 7/124 Manual

This manual contains
important safety information
and must be made available to
personnel who operate and
maintain this machine.
46692958_en_C_04/18
7/124-10/104, 10/124-14/114, 14/84
OPERATION & MAINTENANCE MANUAL
Original Instruction
SERIAL No: 660200 ->

Machine models represented in this manual may be used in various locations world-wide. Machines sold and
shipped into European Union Territories require that the machine display the CE Mark and conform to various
directives. In such cases, the design specification of this machine has been certified as complying with EC
directives. Any modification to any part is absolutely prohibited and would result in the CE Certification and marking
being rendered invalid. A declaration of that conformity follows:
1)
EC Declaration of Conformity 2)
3) We: 4) Represented in EC by:
Doosan International USA, Inc Doosan Trading Limited
1293 Glenway Drive Block B, Swords Business Campus
Statesville Swords
North Carolina 28625-9218 Co. Dublin
USA Ireland
5) Hereby declare that, under our sole responsibility the product(s)
6) Machine description: Portable Screw Compressor
7) Machine Model: 7/20; 7/26E; 7/31E; 7/41; 7/53 ; 7/73-10/53; 7/124-10/104; 10/124-14/114; 14/84;
7/204; 10/174; 12/154; 14/144; 9/274; 9/304; 12/254; 17/244; 21/224
8) Commercial name: 7/20; 7/26E; 7/31E; 7/41; 7/53 ; 7/73-10/53; 7/124-10/104; 10/124-14/114; 14/84;
7/204; 10/174; 12/154; 14/144; 9/274; 9/304; 12/254; 17/244; 21/224
9) VIN / Serial number:
10) is (are) in conformity with the relevant provisions of the following EC Directive(s)
11) 2006/42/EC The Machinery Directive
12) 2014/30/EU The Electromagnetic Compatibility Directive
13) 2000/14/EC The Noise Emission Directive
14) 2014/68/EU The Pressure Equipment Directive
15) 2014/29/EU The Simple Pressure Vessels Directive
16) 97/68/EC The emission of engines for no-road mobile machinery
31) 2014/35/EU The Low Voltage Equipment Directive
17) and their amendments
18) Conformity with the Noise Emission Directive 2000/14/EC
19)
20)
22)Type kW 22)Type kW
7/20 17,5 96LWA 97LWA 7/124-10/104 97
7/26E 21,3
97LWA 98LWA 10/124-14/114 122
7/31E
25,9 97LWA 98LWA 14/84 97
7/41 35
98LWA 98LWA
7/53 36
97LWA 98LWA
7/73-10/53 55 96LWA 98LWA 9/274 226 99LWA 100LWA
25) Conformity with the Pressure Equipment directive 2014/68/EU
26)
Jan Moravec
27) Engineering Director
28) Issued at Dobris, Czech Republic 29) Date
30) The technical documentation for the machinery is available from:
Doosan Bobcat EMEA s.r.o. (DBEM), U Kodetky 1810, 263 12 Dobris, Czech Republic
168 98LWA 99LWA
98LWA 99LWA
24)Guaranteed sound
power level
7/204; 10/174;
12/154; 14/144
21)Machine
We declare that this product has been assessed according to the Pressure Equipment Directive 2014/68/EU and, in accordance with the terms of
this Directive, has been excluded from the scope of this Directive. It may carry "CE" marking in compliance with other applicable EC directives.
9/304; 12/254;
17/244; 21/224
247 99LWA 100LWA
Notified body: AV Technology, Warrington, UK. Nr 1067
Directive 2000/14/EC, Annex VI, Part I
Original declaration
23)Measured sound
power level
24)Guaranteed
sound power level
U N 5
21)Machine
23)Measured sound
power level
CPN 46552199 rev N
SAMPLE

CONTENTS & ABBREVIATIONS 1
7/124 - 10/104, 10/124 - 14/114, 14/84
1 CONTENTS
2 FOREWORD
3 ISO SYMBOLS
8 SAFETY
11 GENERAL INFORMATION
Dimensions
Data
15 OPERATING INSTRUCTIONS
Commissioning
Prior to starting
Starting
Stopping
Emergency stopping
Re-starting
Monitoring during operation
Decommissioning
Long term storage recommendations
Short term storage
57 MAINTENANCE
Routine maintenance
Lubrication
Speed & pressure regulation
Torque settings table
Compressor lubrication
81 MACHINE SYSTEMS
89 FAULT FINDING
92 OPTIONS
102 PARTS ORDERING
ABBREVIATIONS & SYMBOLS
#### Contact the company for serial number
->#### Up to Serial No.
####-> From Serial No.
*Not illustrated
†Option
WDG Generator option
AR As required
HA High ambient machine
S.R.G. Site running gear
H.R.G. High speed running gear
bg Bulgarian
cs Czech
da Danish
de German
el Greek
en English
es Spanish
et Estonian
fi Finnish
fr French
hu Hungarian
it Italian
lt Lithuanian
lv Latvian, Lettish
mt Maltese
nl Dutch
no Norwegian
pl Polish
pt Portuguese
ro Romanian
ru Russian
sk Slovak
sl Slovenian
sv Swedish
zh Chinese

2 FOREWORD
7/124 - 10/104, 10/124 - 14/114, 14/84
The contents of this manual are considered to be proprietary and
confidential to and should not be reproduced without the prior written
permission of the company.
Nothing contained in this document is intended to extend any promise,
warranty or representation, expressed or implied, regarding the
products described herein. Any such warranties or other terms and
conditions of sale of products shall be in accordance with the standard
terms and conditions of sale for such products, which are available
upon request.
This manual contains instructions and technical data to cover all
routine operation and scheduled maintenance tasks by operation and
maintenance staff. Major overhauls are outside the scope of this
manual and should be referred to an authorised service department.
The design specification of this machine has been certified as
complying with EC directives. As a result:
a) Any machine modifications are strictly prohibited, and will invalidate
EC certification.
b) A unique specification for USA/Canada is adopted and tailored to
the territory.
All components, accessories, pipes and connectors added to the
compressed air system should be:
• of good quality, procured from a reputable manufacturer and,
wherever possible, be of a type approved by the company.
• clearly rated for a pressure at least equal to the machine maximum
allowable working pressure.
• compatible with the compressor lubricant/coolant.
• accompanied with instructions for safe installation, operation and
maintenance.
Details of approved equipment are available from the company Service
departments.
The use of repair parts / lubricants / fluids other than those included
within the approved parts list may create hazardous conditions over
which the company has no control. Therefore the company cannot be
held responsible for equipment in which non-approved repair parts are
installed.
The company reserves the right to make changes and improvements
to products without notice and without incurring any obligation to make
such changes or add such improvements to products sold previously.
The intended uses of this machine are outlined below and examples of
unapproved usage are also given, however the company cannot
anticipate every application or work situation that may arise.
IF IN DOUBT CONSULT SUPERVISION.
This machine has been designed and supplied for use only in the
following specified conditions and applications:
• Compression of normal ambient air containing no known or
detectable additional gases, vapours. or particles
• Operation within the ambient temperature range specified in the
GENERAL INFORMATION section of this manual.
The use of the machine in any of the situation types listed in
table 1:-
a) Is not approved,
b) May impair the safety of users and other persons, and
c) May prejudice any claims made against the company.
The company accepts no responsibility for errors in translation of this
manual from the original English version.
©COPYRIGHT 2018
DOOSAN COMPANY
TABLE 1
Use of the machine to produce compressed air for:
a) direct human consumption
b) indirect human consumption, without suitable filtration and purity
checks.
Use of the machine outside the ambient temperature range
specified in the GENERAL INFORMATION SECTION of this
manual.
This machine is not intended and must not be used in potentially
explosive atmospheres, including situations where flammable
gases or vapours may be present.
Use of the machine fitted with non approved components /
lubricants / fluids.
Use of the machine with safety or control components missing or
disabled.

ISO SYMBOLS 3
7/124 - 10/104, 10/124 - 14/114, 14/84
GRAPHIC FORM AND MEANING OF ISO SYMBOLS
Prohibition / Mandatory Information / Instructions Warning
WARNING: Electrical shock risk WARNING - Pressurised component or
system.
WARNING - Hot surface.
WARNING - Pressure control. WARNING - Corrosion risk. WARNING - Air/gas flow or Air discharge.
WARNING - Pressurised vessel. WARNING - Hot and harmful exhaust gas. WARNING - Flammable liquid.
WARNING - Maintain correct tyre pressure.
(Refer to the GENERAL INFORMATION
section of this manual).
WARNING - Before connecting the tow bar
or commencing to tow consult the
Operation & Maintenance manual.
WARNING - For operating temperature
below 0°C (32°F), consult the Operation &
Maintenance manual.

4 ISO SYMBOLS
7/124 - 10/104, 10/124 - 14/114, 14/84
WARNING - Do not undertake any
maintenance on this machine until the
electrical supply is disconnected and the air
pressure is totally relieved.
WARNING - Consult the Operation &
Maintenance manual before commencing
any maintenance.
Do not breathe the compressed air from this
machine.
Do not remove the Operating and Maintenance
manual and manual holder from this machine.
Do not stack. Do not operate the machine without the guard
being fitted.
Do not stand on any service valve or other parts
of the pressure system.
Do not operate with the doors or enclosure
open.
Do not use fork lift truck from this side.
Do not exceed the trailer speed limit. No naked lights. Do not open the service valve before the air
hose is attached.
Use fork lift truck from this side only. Emergency stop. Tie down point

ISO SYMBOLS 5
7/124 - 10/104, 10/124 - 14/114, 14/84
Lifting point. On (power). Off (power).
Read the Operation & Maintenance manual
before operation or maintenance of this
machine is undertaken.
When parking use prop stand, handbrake and
wheel chocks.
Compressor oil filling
Diesel fuel
No open flame.
Parking brake. Rough Service Designation.
Wet Location Operation.
Engine oil sump drain Separator tank drain. Engine coolant drain.
Engine oil drain. Compressor coolant drain. Fuel tank drain.
Operational status of the engine emission filter. Engine emissions system temperature may be
high.
Disable active regeneration of the engine
emission filter.

6 ISO SYMBOLS
7/124 - 10/104, 10/124 - 14/114, 14/84
Start and stop device. Mandatory action:
Hearing protection must be worn.
Lashing point (Tie down).
Prohibition: Do not start. WARNING - Maintenance work in progress. Engine oil.
Fuel level/point. Pressure control. Malfunction.
Battery charging condition. Low pressure. High pressure.
Engine malfunction. High compressor temperature. Compressor malfunction.
Low engine oil pressure. High engine temperature. WARNING - Daily drain of rainwater. Check
correct angle of tilt.
Ultra low sulphur diesel fuel only
(15ppm sulphur maximum).
Low DEF and fuel warning beacon. DEF drain.

ISO SYMBOLS 7
7/124 - 10/104, 10/124 - 14/114, 14/84
Replace any cracked protective shield.

8 SAFETY
7/124 - 10/104, 10/124 - 14/114, 14/84
General Information
Never operate unit without first observing all safety warnings and
carefully reading the operation and maintenance manual shipped from
the factory with this machine.
Ensure that the operator reads and understands the decals and
consults the manuals before maintenance or operation.
Ensure that the Operation and Maintenance manual, and the manual
holder, are not removed permanently from the machine.
Ensure that maintenance personnel are adequately trained, competent
and have read the Maintenance Manuals.
Ensure that ice and snow do no block the cooling air inlets.
Use hearing protectors when the machine is running.
Make sure that all protective covers are in place and that the canopy/
doors are closed during operation.
The specification of this machine is such that the machine is not
suitable for use in flammable gas risk areas. If such an application is
required then all local regulations, codes of practice and site rules must
be observed. To ensure that the machine can operate in a safe and
reliable manner, additional equipment such as gas detection, exhaust
spark arrestors, and intake (shut-off) valves may be required,
dependant on local regulations or the degree of risk involved.
A weekly visual check must be made on all fasteners/fixing screws
securing mechanical parts. In particular, safety-related parts such as
coupling hitch, drawbar components, road-wheels, and lifting bail
should be checked for total security.
All components which are loose, damaged or unserviceable, must be
rectified without delay.
Air discharged from this machine may contain carbon monoxide or
other contaminants which will cause serious injury or death. Do not
breathe this air.
This machine produces loud noise with the doors open or service valve
vented. Extended exposure to loud noise can cause hearing loss.
Always wear hearing protection when doors are open or service valve
is vented.
Never inspect or service unit without first disconnecting battery
cable(s) to prevent accidental starting.
Do not use petroleum products (solvents or fuels) under high pressure
as this can penetrate the skin and result in serious illness. wear eye
protection while cleaning unit with compressed air to prevent debris
from injuring eye(s).
Rotating fan blade can cause serious injury. Do not operate without
guard in place.
Use care to avoid contacting hot surfaces (engine exhaust manifold
and piping, air receiver and air discharge piping, etc.).
Ether is an extremely volatile, highly inflammable gas. When it is
specified as a starting aid, use sparingly. DO NOT USE ETHER IF THE
MACHINE HAS GLOW PLUG STARTING AID OR ENGINE DAMAGE
WILL RESULT.
Never operate unit with guards, covers or screens removed. Keep
hands, hair, clothing, tools, blow gun tips, etc. well away from moving
parts.
Compressed air
Compressed air can be dangerous if incorrectly handled. Before doing
any work on the unit, ensure that all pressure is vented from the system
and that the machine cannot be started accidentally.
Ensure that the machine is operating at the rated pressure and that the
rated pressure is known to all relevant personnel.
All air pressure equipment installed in or connected to the machine
must have safe working pressure ratings of at least the machine rated
pressure.
If more than one compressor is connected to one common
downstream plant, effective check valves and isolation valves must be
fitted and controlled by work procedures, so that one machine cannot
accidentally be pressurised / over pressurised by another.
Compressed air must not be used for a direct feed to any form of
breathing apparatus or mask.
High Pressure Air can cause serious injury or death. Relieve pressure
before removing filler plugs/caps, fittings or covers.
Air pressure can remain trapped in air supply line which can result in
serious injury or death. Always carefully vent air supply line at tool or
vent valve before performing any service.
The discharged air contains a very small percentage of compressor
lubricating oil and care should be taken to ensure that downstream
equipment is compatible.
If the discharged air is to be ultimately released into a confined space,
adequate ventilation must be provided.
When using compressed air always use appropriate personal
protective equipment.
All pressure containing parts, especially flexible hoses and their
couplings, must be regularly inspected, be free from defects and be
replaced according to the Manual instructions.
Avoid bodily contact with compressed air.
The safety valve located in the separator tank must be checked
periodically for correct operation.
Whenever the machine is stopped, air will flow back into the
compressor system from devices or systems downstream of the
machine unless the service valve is closed. Install a check valve at the
machine service valve to prevent reverse flow in the event of an
unexpected shutdown when the service valve is open.
Disconnected air hoses whip and can cause serious injury or death.
Always attach a safety flow restrictor to each hose at the source of
supply or branch line in accordance with OSHA Regulation 29CFR
Section 1926.302(b).
Never allow the unit to sit stopped with pressure in the receiver-
separator system.
WARNINGS
Warnings call attention to instructions which must be followed
precisely to avoid injury or death.
CAUTIONS
Cautions call attention to instructions which must be followed
precisely to avoid damaging the product, process or its surroundings.
NOTES
Notes are used for supplementary information.

SAFETY 9
7/124 - 10/104, 10/124 - 14/114, 14/84
Materials
The following substances may be produced during the operation of this
machine:
• brake lining dust
• engine exhaust fumes
AVOID INHALATION
Ensure that adequate ventilation of the cooling system and exhaust
gases is maintained at all times.
The following substances are used in the manufacture of this machine
and may be hazardous to health if used incorrectly:
• compressor lubricant
• engine lubricant
• preservative grease
• rust preventative
• diesel fuel
• battery electrolyte
AVOID INGESTION, SKIN CONTACT AND INHALATION OF
FUMES.
Should compressor lubricant come into contact with the eyes, then
irrigate with water for at least 5 minutes.
Should compressor lubricant come into contact with the skin, then
wash off immediately.
Consult a physician if large amounts of compressor lubricant are
ingested.
Consult a physician if compressor lubricant is inhaled.
Never give fluids or induce vomiting if the patient is unconscious or
having convulsions.
Safety data sheets for compressor and engine lubricants should be
obtained from the lubricant supplier.
Never operate the engine of this machine inside a building without
adequate ventilation. Avoid breathing exhaust fumes when working on
or near the machine.
This machine may include such materials as oil, diesel fuel, antifreeze,
brake fluid, oil/air filters and batteries which may require proper
disposal when performing maintenance and service tasks. Contact
local authorities for proper disposal of these materials.
Battery
A battery contains sulphuric acid and can give off gases which are
corrosive and potentially explosive. Avoid contact with skin, eyes and
clothing. In case of contact, flush area immediately with water.
DO NOT ATTEMPT TO SLAVE START A FROZEN BATTERY
SINCE THIS MAY CAUSE IT TO EXPLODE.
Exercise extreme caution when using booster battery. To jump battery,
connect ends of one booster cable to the positive (+) terminal of each
battery. Connect one end of other cable to the negative (-) terminal of
the booster battery and other end to a ground connection away from
dead battery (to avoid a spark occurring near any explosive gases that
may be present). After starting unit, always disconnect cables in
reverse order.
Radiator
Hot engine coolant and steam can cause injury. Ensure that the
radiator filler cap is removed with due care and attention.
Do not remove the pressure cap from a HOT radiator. Allow radiator to
cool down before removing pressure cap.
Generator sets
The generator set is designed for safety in use. However, the
responsibility for safe operation rests with those who install, use and
maintain it. The following safety precautions are offered as a guide,
which, if conscientiously followed, will minimise the possibility of
accidents throughout the useful life of this equipment.
Emergency Stop Controls
Important Note:- In addition to the key operated emergency stop
control on the main control panel, a second control is provided at the
socket control panel in the event of electrical hazards associated with
generator operation. Use this second control to immediately isolate all
electrical power to all sockets, then use the key control to stop the
engine.
Operation of the generator must be in accordance with recognised
electrical codes and local health and safety codes.
The generator set should be operated by those who have been trained
in its use and delegated to do so, and who have read and understand
the operator’s manual. Failure to follow the instructions, procedures
and safety precautions in the manual may increase the possibility of
accidents and injuries.
Do not start the generator set unless it is safe to do so. Do not attempt
to operate the generator set with a known unsafe condition. Fit a
danger notice to the generator set and render it inoperative by
disconnecting the battery and disconnecting all ungrounded
conductors so others who may not know of the unsafe condition will not
attempt to operate it until the condition is corrected.
An earth point is provided beneath the socket outlets.
The generator set should only be used with the earth point connected
directly to the general earth/ground mass. An earth spike kit is
available as an optional extra for this purpose (refer to the parts
catalogue).
WARNING: DO NOT OPERATE THE MACHINE UNLESS IT HAS
BEEN SUITABLY EARTHED.
Generator sets must be connected to the load only by trained and
qualified electricians who have been delegated to do so, and when
required by applicable regulations, their work should be inspected, and
accepted by the inspection agency having authority, prior to attempting
to operate the generator set.
Do not make contact with electrically energised parts of the generator
set and/or interconnecting cables or conductors with any part of the
body or with any non-insulated conductive object.
Make sure the generator set is effectively grounded in accordance with
all applicable Regulations prior to attempting to make or break load
connections and prior to attempting operation.
Do not attempt to make or break electrical connections to generator
sets standing in water or on wet ground.
Prior to attempting to make or break electrical connections at the
generator set, stop the engine, disconnect the battery and disconnect
and lock out the ungrounded conductors at the load end.
Keep all parts of the body and any hand-held tools or other conductive
objects, away from exposed live parts of the generator set engine
electrical system. Maintain dry footing, stand on insulating surfaces
and do not contact any other portion of the generator set when making
adjustments or repairs to exposed live parts of the generator set engine
electrical system.
Replace the generator set terminal compartment cover as soon as
connections have been made or broken. Do not operate the generator
set without the terminal cover secured firmly in place.
Close and lock all access doors when the generator set is left
unattended.
Do not use extinguishers intended for Class A or Class B fires on
electrical fires. Use only extinguishers suitable for class BC or class
ABC fires.

10 SAFETY
7/124 - 10/104, 10/124 - 14/114, 14/84
Keep the towing vehicle or equipment carrier, generator set,
connecting cables, tools and all personnel at least 3 metres from all
power lines and buried power cables, other than those connected to
the generator set.
Attempt repairs only in clean, dry, well lighted and ventilated areas.
Connect the generator set only to loads and/or electrical systems that
are compatible with its electrical characteristics and that are within it’s
rated capacity.
Transport
hen loading or transporting machines ensure that the specified lifting
and tie down points are used and cables or chains are within safe
limits.
hen loading or transporting machines ensure that the towing vehicle,
its size, weight, towing hitch and electrical supply are all suitable to
provide safe and stable towing at speeds either, up to the legal
maximum for the country in which it is being towed or, as specified for
the machine model if lower than the legal maximum.
Ensure that the maximum trailer weight does not exceed the maximum
gross weight of the machine (by limiting the equipment load), limited by
the capacity of the running gear.
NOTE: Gross mass (on data plate) is for the basic machine and fuel
only, excluding any fitted options, tools, equipment and foreign
materials.
Before towing the machine, ensure that:-
• the tyres and towing hitch are in a serviceable condition.
• the canopy is secure.
• all ancillary equipment is stored in a safe and secure manner.
• the brakes and lights are functioning correctly and meet necessary
road traffic requirements.
• break–away cables/safety chains are connected to the towing
vehicle.
The machine must be towed in a level attitude (the maximum
permissable drawbar angle is between 0° and +5° from horizontal) in
order to maintain correct handling, braking and lighting functions. This
can be achieved by correct selection and adjustment of the vehicle
towing hitch and, on variable height running gear, adjustment of the
drawbar.
To ensure full braking efficiency, the front (towing eye) section must
always be set level.
hen adjusting variable height running gear:-
• Ensure front (towing eye) section is set level
• hen raising towing eye, set rear joint first, then front joint.
• hen lowering towing eye, set front joint first, then rear joint.
After setting, fully tighten each joint by hand and then tighten further to
the next pin. Refit the pin.
hen parking always use the handbrake and, if necessary, suitable
wheel chocks.
Make sure wheels, tyres and tow bar connectors are in safe operating
condition and tow bar is properly connected before towing.
Safety cha ns / connect ons and the r adjustment
The legal requirements for the joint operation of the breakaway cable
and safety chains are as yet unidentified by 71/320/EEC or UK
regulations. Consequently we offer the following advice / instructions.
here brakes only are fitted:
a) Ensure that the breakaway cable is securely coupled to the
handbrake lever and also to a substantial point on the towing
vehicle.
b) Ensure that the effective cable length is as short as possible, whilst
still allowing enough slackness for the trailer to articulate without the
handbrake being applied.
here brakes and safety chains are fitted:
a) Loop the chains onto the towing vehicle using the towing vehicle
hitch as an anchorage point, or any other point of similar strength.
b) Ensure that the effective chain length is as short as possible whilst
still allowing normal articulation of the trailer and effective operation
of the breakaway cable.
here safety chains only are fitted:
a) Loop the chains onto the towing vehicle using the towing vehicle
hitch as an anchorage point, or any other point of similar strength.
b) hen adjusting the safety chains there should be sufficient free
length in the chains to allow normal articulation, whilst also being
short enough to prevent the towbar from touching the ground in the
event of an accidental separation of the towing vehicle from the
trailer.

GENERAL INFORMATION 11
7/124 - 10/104, 10/124 - 14/114, 14/84
Fixed Height Running Gear (Braked)
Variable Height Running Gear (Braked)

12 GENERAL INFORMATION
7/124 - 10/104, 10/124 - 14/114, 14/84
LRG (Less Running Gear)
DIMENSIONS
MODEL A B C D E F G H I J K L M N O P
Fixed Height
Braked
4003 MIN
4060 MAX 1798 2541 2424 400 2592 MIN 2609 MAX 1375 435 460 1370 1830 1374 1692 1975 350 2130
Variable Height
Braked
4443 MIN
4220 MAX 1798 2541 2424 405 MIN 930 MAX
2791 MIN
3014 MAX 1375 435 460 1370 1830 1374 1692 1975 350 2130
LRG (Less
Running Gear)
plus skids
2685 1563 1634 2765 2424 1720 343 1380 1374 1537 1468 1539 2760 2780 - 2020
ALL DIMENSIONS IN MLLIMETRES
Dimensions marked with * are subject to a 10mm tolerance
Dimensions marked with ** are subject to a 40mm tolerance

GENERAL INFORMATION 13
7/124 - 10/104, 10/124 - 14/114, 14/84
MODEL 7/124 10/104 10/124 14/114 14/84
COMPRESSOR
Actual free air delivery. m3/min/
cfm
12,0/
425
10,6/
375
12,7/
450
11,3/
400
8,5/
300
Normal operating discharge pressure. bar/
psi
6,9/
100
10,3/
150
10,3/
150
13,8/
200
13,8/
200
Maximum allowable pressure bar/
psi
8,6/
125
12,1/
175
12,1/
175
15,5/
225
15,5/
225
Safety valve setting bar/
psi
17,2/
250
17,2/
250
17,2/
250
17,2/
250
17,2/
250
Maximum pressure ratio (absolute) 7,9:1 11,3:1 11,3:1 14,8:1 14,8:1
Operating ambient temperature range °C/
°F
-10 to +46/
14 to 115
-10 to +46/
14 to 115
-10 to +46/
14 to 115
-10 to +46/
14 to 115
-10 to +46/
14 to 115
Maximum discharge temperature °C/
°F
120/
248
120/
248
120/
248
120/
248
120/
248
COMPRESSOR
Cooling system. Oil Injection
Oil capacity. Litre/
gallon
40/
10,6
40/
10,6
40/
10,6
40/
10,6
40/
10,6
Maximum oil system temperature °C/
°F
120/
248
120/
248
120/
248
120/
248
120/
248
Maximum oil system pressure bar/
psi
8,6/
125
10,3/
150
10,3/
150
15,5/
225
15,5/
225
LUBRICATING OIL SPECIFICATION
(for the specified ambient temperatures). SEE ‘COMPRESSOR LUBRICATION’ IN THE MAINTENANCE SECTION.

14 GENERAL INFORMATION
7/124 - 10/104, 10/124 - 14/114, 14/84
LUBRICATING OIL SPECIFICATION
(for the specified ambient temperatures).
ABOVE -23°C(-9°F)
Recommended: PRO-TEC
Approved: SAE 10W, API CF-4/CG-4
PRO-TEC compressor fluid is factory-fitted, for use at all ambient
temperatures above -23°C (-9°F).
NOTE: Warranty may be extended only by continuous use of PRO-
TEC and Doosan oil filters and separators.
No other oil/fluids are compatible with PRO-TEC.
No other oils/fluids should be mixed with PRO-TEC because the
resulting mixture could cause damage to the airend.
In the event that PRO-TEC is not available and / or the end user needs
to use an approved single grade engine oil, the complete system
including separator / receiver, cooler and pipework must be flushed
clear of the first fill fluid and new Doosan oil filters installed.
When this has been completed, the following oils are approved:
for ambient temperatures above -23°C (-9°F),
SAE 10W, API CF-4/CG-4
Safety data sheets can be obtained on request from your Doosan
dealership.
For temperatures outside the specified ambient range, consult the
company.
ENGINE
Type/model.
7/124 - 10/104, 14/84 Cummins / QSB4,5 130 HP
10/124 - 14/144 Cummins / QSB4,5 163 HP
Number of cylinders. 4
Oil capacity. 11 litres (2,9 US GAL)
Speed at full load.
7/124 - 10/104 2200 - 1950 revs min-1 (RPM)
10/124 - 14/144 2350 - 2100 revs min-1 (RPM)
14/84 2100 revs min-1 (RPM)
Speed at idle. 1500 revs min-1 (RPM)
Electrical system. 24V negative earth
Power available at 2200 revs min-1
7/124 - 10/104, 14/84 (QSB4,5 130 HP) 97 kW (130 HP)
Power available at 2500 revs min-1
10/124 - 14/144 (QSB4,5 163 HP) 122 kW (163 HP)
Fuel tank capacity 238 litres (63 US GAL)
Oil specification Refer to engine section
Coolant capacity 22 litres (5,8 US GAL)
DEF tank capacity 19 litres (5 US GAL)
FIXED HEIGHT RUNNING GEAR
Braked version
Working weight. 2460 kg (5644 Lbs)
Maximum weight. 2700 kg (5952 Lbs)
Maximum horizontal towing force. 26,9 kN (5931 Lbs)
Maximum vertical coupling load
(nose weight). 150 kg (331 Lbs)
VARIABLE HEIGHT RUNNING GEAR
Braked version
Working weight. 2530 kg (5578 Lbs)
Maximum weight. 2700 kg (5952 Lbs)
Maximum horizontal towing force. 27 kN (5953 Lbs)
Maximum vertical coupling load
(nose weight). 150 kg (331 Lbs)
WHEELS AND TYRES
Number of wheels. 2 x 5.5J x 16,0
Tyre size. 225/75 R16C
Tyre pressure. 5,25 bar (76 psi)
TOWING SPEED
Maximum towing speed. 100 km/h (62 mph)
INFORMATION ON AIRBORNE NOISE (CE regions)
- The A-weighted emission sound pressure level
• 83 dB (A), uncertainty 1 dB (A)
- The A-weighted emission sound power level
• 99 dB (A), uncertainty 1 dB (A)
The operating conditions of the machinery are in compliance with
ISO 3744:2010 and EN ISO 2151:2008
Further information may be obtained by request through the
customer services department.

OPERATING INSTRUCTIONS 15
7/124 - 10/104, 10/124 - 14/114, 14/84
COMMISSIONING
Upon receipt of the unit, and prior to putting it into service, it is
important to adhere strictly to the instructions given below in PRIOR
TO STARTING.
Ensure that the operator reads and understands the decals and
consults the manuals before maintenance or operation.
Ensure that the position of the emergency stop device is known and
recognised by its markings. Ensure that it is functioning correctly and
that the method of operation is known.
Before towing the unit, ensure that the tyre pressures are correct (refer
to the GENERAL INFORMATION section of this manual) and that the
handbrake is functioning correctly (refer to the MAINTENANCE section
of this manual). Before towing the unit during the hours of darkness,
ensure that the lights are functioning correctly (where fitted).
Ensure that all transport and packing materials are discarded.
Ensure that the correct fork lift truck slots or marked lifting / tie down
points are used whenever the machine is lifted or transported.
When selecting the working position of the machine ensure that there
is sufficient clearance for ventilation and exhaust requirements,
observing any specified minimum dimensions (to walls, floors etc.).
Adequate clearance needs to be allowed around and above the
machine to permit safe access for specified maintenance tasks.
Ensure that the machine is positioned securely and on a stable
foundation. Any risk of movement should be removed by suitable
means, especially to avoid strain on any rigid discharge piping.
Attach the battery cables to the battery(s) ensuring that they are
tightened securely. Attach the negative cable before attaching the
positive cable.
Lifting
The central lifting bail allows the compressor to be lifted from a single
point. Use hoist or crane capable of lifting compressor weight (See
General Data).
WARNING: All air pressure equipment installed in or connected
to the machine must have safe working pressure ratings of at
least the machine rated pressure, and materials compatible with
the compressor lubricant (refer to the GENERAL INFORMATION
section).
WARNING: If more than one compressor is connected to one
common downstream plant, effective check valves and isolation
valves must be fitted and controlled by work procedures, so that
one machine cannot accidentally be pressurised / over
pressurised by another.
WARNING: If flexible discharge hoses are to carry more than 7
bar pressure then it is recommended that safety retaining wires
are used on the hoses.
WARNING: Falling off the compressor can cause serious injury
or death. Use ladder and hand holds to access lifting bail.

16 OPERATING INSTRUCTIONS
7/124 - 10/104, 10/124 - 14/114, 14/84
PRIOR TO STARTING
1. Place the unit in a position that is as level as possible. The design
of the unit permits a 15 degree lengthways and sideways limit on
out of level operation. It is the engine, not the compressor, that is
the limiting factor.
When the unit has to be operated out of level, it is important to keep the
engine oil level near the high level mark (with the unit level).
2. Check the engine lubrication oil in accordance with the operating
instructions in the Engine Operator’s Manual.
3. Check the compressor oil level in the sight glass located on the
separator tank.
4. Check the diesel fuel level. A good rule is to top up at the end of
each working day. This prevents condensation from occurring in the
tank.
5. Drain the fuel filter water separator of water, ensuring that any
released fuel is safely contained.
6. Check the radiator coolant level (with the unit level).
7. Open the service valve(s) to ensure that all pressure is relieved
from the system. Close the service valve(s) when all pressure is
relieved.
9. Check that the emergency stop switch is not engaged. Pull knob to
release if necessary.
10.Close the manual relief valve inside the unit, on the top of the
separator tank.
When starting or operating the machine in temperatures below or
approaching 0°C (32°F), ensure that the operation of the regulation
system, the unloader valve, the safety valve, and the engine are not
impaired by ice or snow, and that all inlet and outlet pipes and ducts
are clear of ice and snow.
CAUTION: Do not overfill either the engine or the compressor with
oil.
CAUTION: When refuelling:-
• switch off the engine.
• do not smoke.
• extinguish all naked lights.
• do not allow the fuel to come into contact with hot surfaces.
• wear personal protective equipment.
8. CAUTION: Do not operate the machine with the canopy/doors in
the open position as this may cause overheating and operators to
be exposed to high noise levels.