Lombardini LDW 502 User Manual

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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
2
INJECTION
LUBRICATION
CIRCUIT
COOLING
CIRCUIT
POSSIBLE CAUSE
TROUBLE
Technical information
High oil level
Low oil level
Dirty or blocked pressure regulation valve
Worn oil pump
Air to the oil suction hose
Faulty manometer or pressure switch
Oil in sump suction hose blocked
Oil in sump drainage pipe blocked
Faulty spray nozzles (Turbo engines only)
Damaged injector
Damaged injection pump valve
Incorrectly calibrated injector
Worn or damaged pumping element
Incorrect injection pump delivery setting
(delivery equalisation)
Hardened pump/injector control rod
Cracked or broken pre-combustion
chamber
Incorrect adjustment of the injection
systems (delivery equalisation advance)
Insufficient refrigerant fluid
Defective fan, radiator, or radiator cap
Defective thermostatic valve
Loss of refrigerant fluid from the radiator,
hoses, engine crankshaft or water pump.
Inside of radiator or coolant lines obstructed.
Defective or worn water pump
Alternator fan drive belt loose or torn
Heat exchange surface of the radiator clogged
Engine overheats
Oil and fuel dripping
from the exhaust
Excessive oil
consumption
Oil level increase
Oil preassure too low
White smoke
Black smoke
Non-uniform speed
No acceleration
Engine starts but stops
Engine does not start
High noise level
Inadequate
performance

Lombardini LDW 502 Specifications

General

Engine Type	Diesel, 4-stroke
Number of Cylinders	2
Fuel System	Indirect injection
Starting System	Electric start
Lubrication System	Forced lubrication with gear pump
Bore x Stroke	72 mm x 62 mm
Cooling System	Air-cooled
Displacement	505 cm³ (30.8 cu in)