Lombardini LDW 502 Instruction manual

WORKSHOP
MANUAL
Focs series engines, code 1-5302-351
SERVICE
1
LDW 502
LDW 602
LDW 903
LDW 1204
LDW 1204/T
LDW 702
LDW 1003
LDW 1404
5st Edition
COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
10.06.99

SERVICE
FOREWORD
We have done all in our power to give up to date and accurate technical information in this manual. Lombardini
engines are, however, constantly developing thus the data in this publication may be liable to modification without
prior notice.
The information in this manual is the exclusive property of Lombardini. Neither partial nor total duplications or
reprints are therefore permitted without the express authorization of Lombardini.
The information in this manual is given on the assumption that:
1- the persons who service Lombardini engines have been adequately trained and outfitted to safely and
professionally carry out the necessary tasks;
2- the persons who service Lombardini engines possess the necessary skills and special Lombardini tools to
safely and professionally carry out the necessary tasks;
3- the persons who service Lombardini engines have read the specific information concerning the above
mentioned Service operations and that they have clearly understood the operations required.
GENERAL SERVICE NOTES
1 - Only use genuine Lombardini spare parts. Use of spurious spares may lead to incorrect performance and
shorten the life of the engines.
2 - The metric system is used to express all data, i.e. the dimensions are given in millimeters (mm), torque is
expressed in Newton-meters (Nm), weight in kilograms (Kg), volume in liters or cubic centimeters (cc) and
pressure in barometric units (bar).

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 3
WARRANTY CERTIFICATE
WARRANTY CERTIFICATE
Engine manufactured by Lombardini S.r.l., are warranted to be free of defects in workmanship or materials for 12
months from the date of delivery to the first purchaser or non more than two (2) years from date of engine delivery
to the Original Equipment Manufacturer as defined by Lombardini invoicing, whichever occurs firsts, except as
defined below.
Stationary applications, working at constant speed and/or slightly variable speeds, are excluded from the above
terms. Stationary/fixed speed applications will be warranted to be free of material/workmanship defects for a
maximum operational period of 1000 hours or 12months from the date of first purchase, whichever occurs first.
The two (2) year limitation from date of Lombardini invoice will remain intact as described above.
Modification of Lombardini products by the Original Equipement Manufacturer or the end user with respect to
cooling systems, filtration systems, induction systems, exhaust systems, lubrication system, fuel system, fuel
system settings, etc., will require special written warranty agreements. A test certificate/approval by the R&D/
Application engineering department of Lombardini or associated Lombardini companies concerning modified
Lombardini products will entitle Warranty as defined above. Warranty will not be granted on any modified
Lombardini product without special written approval by Lombardini.
Within the above stated periods Lombardini will replace and/or repair, at the option of Lombardini, any part or
component that, upon examination by Lombardini or an authorized Lombardini agent, is found to be defective in
workmanship or materials. Any other responsibility/obligation for different expenses, damages and direct/indirect
losses deriving from the engine use or from both the total or partial impossibility of use, is excluded.
The repair or replacemnt of any component will not extend or renew the warranty period. Direct labor required to
make repairs or to replace components found to be defective in materials or workmanship will be completed at no
cost to the end user. Lombardini in not responsible however for indirect costs of removing/installing the engine
assembly. Further, Lombardini is not responsible for the costs of transportation of the machine or components
requiring repair or for service supplies such as lubricating oils and filters.
Lombardini Warranty obligations will be cancelled if:
- Lombardini engines are applied to a given machine causing working engine parameters outside Lombardini
application guidelines.
- Lombardini engines are not serviced and maintained according to the "USE and MAINTENANCE" booklet.
- Any seal affixed to the engine by Lombardini has been tampered with or removed.
- Engines have been disassembled, repaired or altered by any party other than an authorized Lombardini agent.
- Spare parts used are not original Lombardini.
- Fuel injection system/component failures caused by the use of unauthorized fuel types or poor quality fuels
are not covered under the Lombardini warranty policy.
- Electrical system failures due to the modification of Lombardini supplied harnesses, modification of
Lombardini supplied control panels, OEM/end user supplied/installed relays, controls, etc. are not covered
under warranty.
Following expiration of the above stated warranty period(s) and limitations, Lombardini will have no further
responsibility for warranty and will consider our obligation for warranty complete.
The above warranty certificate will be in effect starting July 1, 1993 and cancels/replaces any and all explicit or
implicit warranty policies on the part of Lombardini. The above warranty conditions can from this date forward be
modified only in writing.

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
4
INDEX
TROUBLESHOOTING CHART - LDW FOCS SERIES
SAFETY AND WARNING DECALS - SAFETY INSTRUCTIONS
I GENERAL
POWER RATINGS FOR LDW-FOCS GENSET SPEC DIESEL ENGINES
LDW FOCS SERIES - TECHNICAL SPECIFICATIONS AND CAPACITIES LDW 502-602-
903-1204-1204/T
FLUID CAPACITIES (STANDARD) LDW 502-602-903-1204-1204/T
LDW FOCS SERIES - TECHNICAL SPECIFICATIONS AND CAPACITIES LDW 702-1003-
1404
FLUID CAPACITIES (STANDARD) LDW 702-1003-1404
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES LDW 502-602-903
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES LDW 1204-1204/T
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES LDW 702-1003-1404
GENERAL ENGINEERING DRAWINGS - LDW 502-602-903
GENERAL ENGINEERING DRAWINGS - LDW 1204-1204/T
GENERAL ENGINEERING DRAWINGS - LDW 702-1003-1404
LDW-FOCS SERIES MAINTENANCE SCHEDULE
RECOMMENDED OIL
DIESEL FUEL SPECIFICATIONS
ANTI-FREEZE / COOLANT SPECIFICATIONS / DETAILS - FOCS SERIES
DRIVING TORQUES FOR STANDARD SCREWS
SEALANT AND THREAD LOCK LOCATIONS/DETAILS
CRITICAL TORQUE SPECIFICATIONS
SPECIAL TOOLS
II DISASSEMBLY / REASSEMBLY
Air filter support - (intake manifold)
Air restriction switch
Alternator / cooling fan drive belt
Camshaft journal / support bore specifications
Camshaft journal / support measurement
Camshaft lobe measurement procedure
Camshaft lobe specifications
Camshaft removal / replacement
Camshaft timing pulley
Connecting bearing / rod cap installation
Connecting rod / connecting rod bearings specifications
Connecting rod alignment
Connecting rod-piston assembly balance
Cooling fan
Cooling fan support
Crankcase breather - LDW 502
Crankcase vacuum regulator valve (602, 702, 903, 1003, 1204, 1204/t, 1404)
Crankshaft end play
Crankshaft journal inspection / measurement
Crankshaft journal specifications
Crankshaft lubrication drillings-typical
Crankshaft pulley
Crankshaft seals - front and rear
This manual contains pertinent information regarding the repair of LOMBARDINI water-cooled,
indirect injection Diesel engines type LDW 502-602-903-1204-124/T and LDW 702-1003-
1404: updated November 15, 1999.
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INDEX

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 5
Crankshaft timing pulley
Cylinder class
Cylinder head installation
Cylinder head removal
Cylinder head tightening procedure- LDW 1204, LDW 1404, LDW 1204/T
Cylinder head tightening procedure- LDW 502, 602, 702, 903 and 1003
Cylinder inspection / dimensional specifications
Cylinder surface finish
Dry type air filter- standard engine mounted
Exhaust manifold
Flywheel / ring gear
Front / rear main bearing caps / bearings
Fuel rail
Fuel tank - (optional accessory)
General piston notes
Governor fork
Governor springs
Head gasket selection/ installation
Hydraulic drive components- no. 3 pto
Hydraulic pump pto- (no. 3 pto)
Idler pulley
Injection pump control rod
Limiting speed governor
Main and connecting rod bearings
Main bearing caps / bearings- center
Main bearing clearance
No. 2 pto (crankshaft pulley) with “ringfeder”- LDW 1204, LDW 1204/T, LDW 1404
Oil bath air filter
Oil pan removal / installation
Oil pump assembly
Oil pump assembly to the engine
Oil pump inspection
Piston / connecting rod disassembly and piston inspection
Piston / connecting rod installation
Piston balance
Piston class, weight imbalance and genuine lombardini markings
Piston cooling jets- ldw 1204/t
Piston protrusion
Piston removal
Piston ring assembly location
Piston ring end gap
Piston ring to piston land clearance
Piston wrist pin installation / retaining snap ring
Precision speed governor -(gensets)
Pre-combustion chamber installation
Pre-combustion chamber removal
Pre-combustion chamber ring nut
Pre-combustion chamber-overview
Rocker arm assembly
Speed governor
Speed governor reassembly
Thrust bearings
Thrust surface specifications-crankshaft end play corrections
Timing belt / timing pulley arrangement
Timing belt cover
Timing belt installation- timing procedure
Timing belt removal
Timing belt tension procedure
Timing belt tensioning procedure- setup
Timing pulley - reference marks
Undersized bearings- rod and main
Unit injector check valve
Unit injector removal / installation
Valve / rocker cover
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49
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REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
6
Valve / rocker cover gasket
Valve adjustment
Valve guide installation guidelines and post installation valve/valve guide specifications
Valve guides / valve guide bore
Valve recess and seat sealing width
Valve removal
Valve seats
Valve specifications
Valve springs
Valve stem seal installation
Valve timing angles
Valve timing confirmation
III TURBOCHARGER
Turbocharger identification
Turbocharger components
Turbocharger pressure testing
Turbocharger waste gate adjustement-bench method
IV LUBRICATION SYSTEM
Lubrication system
Oil pick-up screen and oil drain back tube
Oil pump specification
Oil filter
Oil pressure testing
V COOLING SYSTEM
LDW-FOCS cooling system schematic
Cooling system pressure check/radiator cap inspection
Coolant pump details
Thermostat
VI FUEL SYSTEM
Barrel and plunger detail- (typical) current unit injectors (example- 6590-285)
Barrel and plunger detail- early unit injectors (typical)
Early unit injectors
Engine timing reference marks
Equalization tool installation, plumbing
Fuel filter assembly
Fuel rate adjustment details
Fuel system schematic
Fuel system special tools
Fuel transfer pump
Fuel transfer pump push rod protrusion
Injector
Injector nozzle protrusion
Late/ intermediate unit injectors
Static injection test instrumentation- early unit injectors
Static timing adjustment
Tdc determination and static injection timing checking
Unit injector
Unit injector components
Unit injector delivery equalization- preparation
Unit injector delivery equalization- preparation (cont.)
Unit injector fire ring
Unit injector plunger reassembly
Unit injector popping pressure testing and adjustment- low pressure procedure (current / intermediate
unit injectors)
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COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 7
Unit injector popping pressure testing and adjustment- high pressure procedure (early unit
injectors- all ref. No’s other than 272, 272-, 272-1, 235-3)
Unit injector reassembly (cont.)
Unit injector ring nut removal / replacement
Unit injector test stand specifications
VII ELECTRICAL SYSTEM
12 electrical schematic-marelli 14V-33A
12V electrical schematic - 20/30 A flywheel alternator
12V electrical schematic-iskra 14V-33A
Battery sizing
Battery sizing
Bosch 12V/1.1 kW starter motor (DW 12V)
BOSCH 12V/1.6 kW starter motor (DW 12V)
Electrical system service precautions / warning
Engine side wiring harness for the Lombardini supplied control panel
Flywheel alternator - 12V
Glow plug
Glow plug controller / relay with coolant temp. Sensor
Iskra 14V/33A performance curve
Iskra alternator - 14V/33A
Lombardini supplied control panel
Marelli AA 125 R, 14V/45A performance curve
Marelli alternator (AA 125 R) - 14V-45A
Oil pressure (low) switch, coolant temperature (high) switch
Performance curve - 20A flywheel alternator
Performance curve - 30A flywheel alternator
Performance curve - BOSCH 12V/1.1 kW (DW 12V) starter
Performance curve - BOSCH 12V/1.6 kW (DW 12V) starter
Temperature sensor (thermistor)
Voltage regulator connection details (flywheel alternator only)
VIII TESTING-OPERATIONAL-ADJUSTEMENTS
Governor / unit injector rack adjustment
High (maximum) speed adjustment
Idle speed adjustment
Injection pump control rod stroke limit adjustment
Power, torque device and speed adjustments-dynamometer method
Torque device adjustment (without dynamometer)
Torque device details
IX STORAGE
Storage
Storage - 1 to 6 months
Storage - in excess of 6 months
Preparing the engine for use after storage
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REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
8
NOTE

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 9
TROUBLESHOOTING CHART- LDW FOCS SERIES
POSSIBLE CAUSE
Low fuel level
Fuel supply/ return lines clogged
Clogged fuel tank vent
Fuel pump faulty
Fuel entrained with air
Unit injector(s) faulty/ worn
Unit injector settings incorrect
Injection pump rack sticking
Oil level too high
Improper oil viscosity
Oil diluted by fuel
Oil pressure relief valve faulty
Oil pick-up tube clogged
Oil pump air entrained at pick-up tube
Glow plugs faulty
Glow plug controller faulty
Glow plug relay inoperable
Starter defective
Battery voltage too low
Battery / battery cable connections corroded
Key switch defective
Air filter clogged
Excessive idle / light load operation
Incomplete engine run-in
Engine overloaded
Excessive parasitic load
Valve lash insufficient / excessive
Injection timing out of spec- advanced
Injection timing out of spec- retarded
Governor linkage adjustment incorrect
Governor spring fatigued or defective
Idle rpm too low
Piston rings worn or stuck
Piston worn or damaged
Cylinders worn or damaged
Valves / valve guides worn
Valves sticking
Bearings (main / rod) worn
Governor / governor linkage malfunction
Cylinder head gasket damaged
Thermostat stuck or malfunctioning
Engine seized
Radiator clogged (external or internal)
Coolant pump faulty
Turbocharger faulty
Engine knocks
Engine will not crank
Engine does not start
Engine starts, but stops
Poor acceleration
White smoke
Unsteady RPM
Black smoke
Blue smoke
Low oil pressure
Oil level rising
Excessive oil consumption
Wet exhaust
Overheating
TROUBLESHOOTING CHART- LDW FOCS SERIES
SYMPTOM
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REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
10
Failure to comply with the
instructions could result in
damage to persons and
property
Failure to comply with the
instructions could lead to
technical damage to the
machine and/or system
DANGER
SAFETY AND WARNING DECALS
CAUTION
SAFETY INSTRUCTIONS
·Lombardini Engines are built to supply their performances in a safe and long-lasting way. To obtain these results,
it is essential for users to comply with the servicing instructions given in the relative manual along with the safety
recommendations listed below.
·The engine has been made according to a machine manufacturer's specifications and all actions required to meet
theessentialsafetyandhealthsafeguardingrequisiteshavebeentaken,asprescribedbythecurrentlawsinmerit.
All uses of the engine beyond those specifically established cannot therefore be considered as conforming to the
use defined by Lombardini which thus declines all liability for any accidents deriving from such operations.
·The following indications are dedicated to the user of the machine in order to reduce or eliminate risks concerning
engine operation in particular, along with the relative routine maintenance work.
·The user must read these instructions carefully and become familiar with the operations described. Failure to do
thiscouldleadtoseriousdangerforhispersonalsafetyandhealthandthatofanypersonswhomaybeinthevicinity
of the machine.
·The engine may only be used or assembled on a machine by technicians who are adequately trained about its
operation and the deriving dangers. This condition is also essential when it comes to routine and, above all,
extraordinary maintenance operations which, in the latter case, must only be carried out by persons specifically
trained by Lombardini and who work in compliance with the existing documentation.
·Variations to the functional parameters of the engine, adjustments to the fuel flow rate and rotation speed, removal
ofseals,demountingandrefitting of partsnotdescribedinthe operation andmaintenancemanualbyunauthorized
personnel shall relieve Lombardini from all and every liability for deriving accidents or for failure to comply with the
laws in merit.
·On starting, make sure that the engine is as horizontal as possible, unless the machine specifications differ. In the
case of manual start-ups, make sure that the relative actions can take place without the risk of hitting walls or
dangerous objects, also considering the movements made by the operator. Pull-starting with a free cord (thus
excluding self-winding starting only), is not permitted even in an emergency.
·Make sure that the machine is stable to prevent the risk of overturning.
·Become familiar with how to adjust the rotation speed and stop the engine.
·Never start the engine in a closed place or where there is insufficient ventilation. Combustion creates carbon
monoxide, an odourless and highly poisonous gas. Lengthy stays in places where the engine freely exhausts this
gas can lead to unconsciousness and death.
SAFETY AND WARNING DECALS - SAFETY INSTRUCTIONS

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 11
·The engine must not operate in places containing inflammable materials, in explosive atmospheres, where there is
dust that can easily catch fire unles specific, adequate and clearly indicated precautions have been taken and have
been certified for the machine.
·To prevent fire hazards, always keep the machine at least one meter from buildings or from other machinery.
·Children and animals must be kept at a due distance from operating machines in order to prevent hazards
deriving from their operation.
·Fuel is inflammable. The tank must only be filled when the engine is off. Thoroughly dry any spilt fuel and move
the fuel container away along with any rags soaked in fuel or oil. Make sure that no soundproofing panels made
of porous material are soaked in fuel or oil. Make sure that the ground or floor on which the machine is standing
has not soaked up any fuel or oil.
·Fully tighten the tank plug each time after refuelling. Do not fill the tank right to the top but leave an adequate
space for the fuel to expand.
·Fuel vapour is highly toxic. Only refuel outdoors or in a well ventilated place.
·Do not smoke or use naked flames when refuelling.
·The engine must be started in compliance with the specific instructions in the operation manual of the engine
and/or machine itself. Do not use auxiliary starting aids that were not installed on the original machine (e.g.
Startpilot’).
·Before starting, remove any tools that were used to service the engine and/or machine. Make sure that all guards
have been refitted.
·During operation, the surface of the engine can become dangerously hot. Avoid touching the exhaust system in
particular.
·Before proceeding with any operation on the engine, stop it and allow it to cool. Never carry out any operation
whilst the engine is running.
·The coolant fluid circuit is under pressure. Never carry out any inspections until the engine has cooled and even
in this case, only open the radiator plug or expansion chamber with the utmost caution, wearing protective
garments and goggles. If there is an electric fan, do not approach the engine whilst it is still hot as the fan could
also start operating when the engine is at a standstill. Only clean the coolant system when the engine is at a
standstill.
·When cleaning the oil-cooled air filter, make sure that the old oil is disposed of in the correct way in order to
safeguard the environment. The spongy filtering material in oil-cooled air filters must not be soaked in oil. The
reservoir of the separator pre-filter must not be filled with oil.
·The oil must be drained whilst the engine is hot (oil T ~ 80°C). Particular care is required to prevent burns. Do
not allow the oil to come into contact with the skin.
·Make sure that the drained oil, the oil filter and the oil it contains are disposed of in the correct way in order to
safeguard the environment.
·Pay attention to the temperature of the oil filter when the filter itself is replaced.
·Only check, top up and change the coolant fluid when the engine is off and cold. Take care to prevent fluids
containing nitrites from being mixed with others that do not contain these substances since "Nitrosamine",
dangerous for the health, can form. The coolant fluid is polluting and must therefore be disposed of in the correct
way to safeguard the environment.
·During operations that involve access to moving parts of the engine and/or removal of rotating guards,
disconnect and insulate the positive wire of the battery to prevent accidental short-circuits and to stop the starter
motor from being energized.
·Only check belt tension when the engine is off.
·Only use the eyebolts installed by Lombardini to move the engine. These lifting points are not suitable for the
entire machine; in this case, the eyebolts installed by the manufacturer should be used.
SAFETY AND WARNING DECALS - SAFETY INSTRUCTIONS

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
12
GENERAL
I
All pertinent information needed for engine identification and spare parts ordering can be accessed from the engine data plate.
Additionally, the maximum engine speed, “K’ number and approval codes are included on the engine data plate. The location
of the data plate, as shown below, is identical for all LOMBARDINI LDW-FOCS industrial engines. Please supply the engine
data plate information to your Authorized LOMBARDINI Distributor or Dealer when ordering replacement parts or when
making technical inquiries.
No. of Cylinders
Displacement / 10 (cc)
Water Cooled
Diesel Engine
LOMBARDINI
r/min
Customer Code (‘K’ No.)
Approval Code (Internal)
Serial Number

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 13
GENERAL I
POWER RATINGS FOR LDW-FOCS GENSET SPEC
DIESEL ENGINES
CONTINUOUS (NA) RATING- kW
ENGINE 1500 1800 3000 3600
MODEL r/min r/min r/min r/min
LDW 602 4.5 5.4 9.0 9.9
LDW 903 6.7 8.1 14.0 14.9
LDW 1204 9.0 10.8 18.9 19.9
LDW 1204/T 11.7 14.0 24.8 25.8
LDW 702 5.0 5.9 9.9 10.6
LDW 1003 7.7 9.0 14.9 16.3
LDW 1404 9.9 11.7 19.8 22.8
NOTE: THE ABOVE RATINGS ARE FLYWHEEL OUTPUT, NOT ELECTRICAL GENSET OUTPUT
INTERMITTENT (NB) RATING- kW
ENGINE 1500 1800 3000 3600
MODEL r/min r/min r/min r/min
LDW 602 5.0 6.0 10.0 11.0
LDW 903 7.5 9.0 15.5 16.5
LDW 1204 10.0 12.0 21.0 22.0
LDW 1204/T 13.0 15.5 27.5 28.5
LDW 702 5.5 6.5 11.0 11.7
LDW 1003 8.5 10.0 16.5 18
LDW 1404 11.0 13.0 22.0 25
NOTE: THE ABOVE RATINGS ARE FLYWHEEL OUTPUT, NOT ELECTRICAL GENSET OUTPUT
POWER RATING STANDARDS
NB- ISO 3046/1-IFN - Maximum intermittent rating with no overload capacity; operation with constant speed and variable load.
NA- ISO 3046/1-ICXN- Continuous rating with 10% intermittent overload allowed; operation with constant speed and constant load.
Standard Rating Conditions: 25°C, 100kPa Total Barometric Pressure, 30% Relative Humidity.
Standard Production Power Tolerance = +/- 5%
Standard/ General Derations: 2% per 5°C increase in temperature over 25°C; 1% per 100m over mean sea level

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
14
LDW FOCS SERIES- TECHNICAL SPECIFICATIONS AND CAPACITIES
TECHNICAL SPECIFICATIONS LDW 502 LDW 602 LDW 903 LDW 1204 LDW 1204/T
No. of Cylinders 2 2 3 4 4
Firing Order 1-2 1-2 1-3-2 1-3-4-2 1-3-4-2
Cylinder Bore (mm) 72 72 72 72 72
Cylinder Stroke (mm) 62 75 75 75 75
Displacement (cc) 505 611 916 1222 1222
Aspiration Type Natural Natural Natural Natural Turbo
Compression Ratio 22.8:1 22.8:1 22.8:1 22.8:1 22.8:1
RPM- maximum 3600 3600 3600 3600 3600
Power- (N)- ISO 1585- KW(CV)-@3600 r/min 9.8(13.4) 11.8(16.0) 17.2(23.4) 24.4(33.2) 31.0(42.0)
Power- (Nb)- ISO 3046-1 IFN- KW(CV)-@3600 r/min 9.1(12.4) 10.3(14.0) 15.6(21.2) 22.0(30.0) 28.5(38.7)
Power- (Na)- ISO 3046-1 ICXN- KW(CV)-@3600 r/min 8.2(11.2) 9.2(12.5) 13.7(18.6) 19.9(27.0) 25.8(35.0)
Torque(MAX)/rpm @Nb output, (Nm) 28.7/2400 34.5/2200 53.5/2000 75.1/2200 98/2400
Maximum Torque Available @ N0. 3 PTO (Nm) 37/1800 37/1800 37/1800 37/1800 37/1800
Fuel Consumption (Nb)@3600 rpm- (g/KWh) 326 282 300 290 305
Oil Consumption (Na)- (Kg/hr) 0.007 0.007 0.012 0.017 0.019
Dry Weight- (Kg) 60 65 85 96 101
Inclination (max)- (30 seconds) 35° 35° 35° 35° 35°
Inclination (max)- (60 seconds) 30° 30° 30° 30° 30°
Inclination (continuous)- APPLICATION DEPENDENT **** **** **** **** ****
Axial Load (max) on Crankshaft (both directions)- (Kg) 300 300 300 300 300
Radial (side) Load - APPLICATION DEPENDENT **** **** **** **** ****
**** - CONTACT LOMBARDINI APPLICATION ENGINEERING DEPARTMENT FOR DETAILS
FLUID CAPACITIES (STANDARD)
Oil Capacity (including oil filter)- (liters) 1.6 1.6 2.4 3.2 4.3
Oil Capacity (less oil filter)- (liters) 1.5 1.5 2.3 3.0 4.1
Coolant Capacity (including std. radiator)- (liters) 2.3 4.0 4.9 6.0 7.5
Coolant Capacity (engine only)- (liters) 0.8 0.9 1.3 1.8 2.0
Fuel Tank-standard (OPTIONAL)- (liters) 4.3 4.3 10.0 15.0 15.0
NOTE: The above cooling system capacities (including radiator) assume that the radiator fitted to your Lombardini
FOCS series diesel engine is the standard Lombardini radiator. Different OEM machines may or may not be fitted with
a standard Lombardini radiator. Always refer to your equipment documentation for capacity details.
GENERAL
I

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 15
LDW 502/602
LDW 903
LDW 1204
LDW 1204/T
GENERAL I

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
16
LDW FOCS SERIES- TECHNICAL SPECIFICATIONS AND CAPACITIES
TECHNICAL SPECIFICATIONS LDW 702 LDW 1003 LDW 1404
No. of Cylinders 2 3 4
Firing Order 1-2 1-3-2 1-3-4-2
Cylinder Bore (mm) 75 75 75
Cylinder Stroke (mm) 77.6 77.6 77.6
Displacement (cc) 686 1028 1372
Aspiration Type Natural Natural Natural
Compression Ratio 22.8:1 22.8:1 22.8:1
RPM- maximum 3600 3600 3600
Power- (N)- ISO 1585- KW(CV)-@3600 r/min 13(17.7) 20(27.2) 27.2(36.7)
Power- (Nb)- ISO 3046-1 IFN- KW(CV)-@3600 r/min 11.7(16) 18(24.5) 25(34)
Power- (Na)- ISO 3046-1 ICXN- KW(CV)-@3600 r/min 10.6(14.4) 16.3(22.2) 22.8(31)
Torque(MAX)/rpm @Nb output, (Nm) 40/2200 59/2200 82.5/2200
Maximum Torque Available @ N0. 3 PTO (Nm) 37/1800 37/1800 37/1800
Fuel Consumption (Nb)@3600 rpm- (g/KWh) 320 300 325
Oil Consumption (Na)- (Kg/hr) 0.009 0.013 0.019
Dry Weight- (Kg) 66 87 98
Inclination (max)- (30 seconds) 35° 35° 35°
Inclination (max)- (60 seconds) 30° 30° 30°
Inclination (continuous)- APPLICATION DEPENDENT **** **** ****
Axial Load (max) on Crankshaft (both directions)- (Kg) 300 300 300
Radial (side) Load - APPLICATION DEPENDENT **** **** ****
**** - CONTACT LOMBARDINI APPLICATION ENGINEERING DEPARTMENT FOR DETAILS
FLUID CAPACITIES (STANDARD)
Oil Capacity (including oil filter)- (liters) 1.6 2.4 3.2
Oil Capacity (less oil filter)- (liters) 1.5 2.3 3.0
Coolant Capacity (including std. radiator)- (liters) 2.3 4.9 6.0
Coolant Capacity (engine only)- (liters) 0.9 1.3 1.7
Fuel Tank-standard (OPTIONAL)- (liters) 4.3 4.3 10.0
NOTE: The above cooling system capacities (including radiator) assume that the radiator
fitted to your Lombardini FOCS series diesel engine is the standard Lombardini radiator.
Different OEM machines may or may not be fitted with a standard Lombardini radiator. Always
refer to your equipment documentation for capacity details.
GENERAL
I

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 17
LDW 702
LDW 1003
LDW 1404
GENERAL I

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
18
GENERAL
I
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES
LDW 502 FOCS, LDW 602 FOCS, LDW 903 FOCS
N- 80/1269/CEE- ISO 1585, Gross automotive rating- intermittent operation with variable speed and variable load.
NB- ISO 3046/1-IFN - Maximum intermittent rating with no overload capacity; operation with constant speed and variable load.
NA- ISO 3046/1-ICXN- Continuous rating with 10% intermittent overload allowed; operation with constant speed and constant load.
M(X)- Torque at N, NB and NA ratings respectively.
C- Specific fuel consumption at NB rating.
Standard Rating Conditions: 25°C, 100kPa Total Barometric Pressure, 30% Relative Humidity.
Standard Production Power Tolerance = +/- 5%
Standard/ General Derations: 2% per 5°C increase in temperature over 25°C; 1% per 100m over mean sea level

COMPILER TECO/ATL REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 ENDORSED
DATE
15.11.99 19
GENERAL I
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES
LDW 1204 FOCS and LDW 1204/T FOCS
N- 80/1269/CEE- ISO 1585, Gross automotive rating- intermittent operation with variable speed and variable load.
NB- ISO 3046/1-IFN - Maximum intermittent rating with no overload capacity; operation with constant speed and variable load.
NA- ISO 3046/1-ICXN- Continuous rating with 10% intermittent overload allowed; operation with constant speed and constant load.
M(X)- Torque at N, NB and NA ratings respectively.
C- Specific fuel consumption at NB rating.
Standard Rating Conditions: 25°C, 100kPa Total Barometric Pressure, 30% Relative Humidity.
Standard Production Power Tolerance = +/- 5%
Standard/ General Derations: 2% per 5°C increase in temperature over 25°C; 1% per 100m over mean sea level

REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90 REVISION 04 DATE
15.11.99
ENDORSED
COMPILER TECO/ATI
20
POWER, TORQUE AND SPECIFIC FUEL CONSUMPTION CURVES
LDW 702 FOCS, LDW 1003 FOCS, LDW 1404 FOCS
N- 80/1269/CEE- ISO 1585, Gross automotive rating- intermittent operation with variable speed and variable load.
NB- ISO 3046/1-IFN - Maximum intermittent rating with no overload capacity; operation with constant speed and variable load.
NA- ISO 3046/1-ICXN- Continuous rating with 10% intermittent overload allowed; operation with constant speed and constant load.
M(X)- Torque at N, NB and NA ratings respectively.
C- Specific fuel consumption at NB rating.
Standard Rating Conditions: 25°C, 100kPa Total Barometric Pressure, 30% Relative Humidity.
Standard Production Power Tolerance = +/- 5%
Standard/ General Derations: 2% per 5°C increase in temperature over 25°C; 1% per 100m over mean sea level
GENERAL
I