Lombardini LDW 502 User Manual

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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
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CHAPTER INDEX
1GENERAL REMARKS AND SAFETY INFORMATION................................................................ Pag. 9 - 11
GENERAL SAFETY DURING OPERATING PHASES .................................................................................................... 11
GENERAL SERVICE MANUAL NOTES ............................................................................................................................ 9
GLOSSARY AND TERMINOLOGY ................................................................................................................................... 9
SAFETY AND ENVIRONMENTAL IMPACT .................................................................................................................... 11
SAFETY AND WARNING DECALS ................................................................................................................................. 10
SAFETY REGULATIONS ........................................................................................................................................... 10-11
WARRANTY CERTIFICATE ............................................................................................................................................... 9
2TECHNICAL INFORMATION.................................................................................................................. 12-23
MANUFACTURER AND ENGINE IDENTIFICATION ................................................................................................ 14-15
OVERALL DIMENSION .............................................................................................................................................. 21-23
PERFORMANCE DIAGRAMS .................................................................................................................................... 18-20
TECHINICAL SPECIFICATIONS ............................................................................................................................... 16-17
TROUBLE SHOOTING ............................................................................................................................................... 12-13
3MAINTENANCE - RECOMMENDED OIL TYPE - REFILLING.............................................................. 24-27
ACEA Regualtions - ACEA Sequences ............................................................................................................................ 25
API / MIL Sequence ..........................................................................................................................................................25
COOLANT ......................................................................................................................................................................... 27
FUEL SPECIFICATIONS .................................................................................................................................................. 27
International specifications ............................................................................................................................................... 25
LUBRICANT ...................................................................................................................................................................... 25
PRESCRIBED LUBRICANT ............................................................................................................................................. 26
ROUTINE ENGINE MAINTENANCE ............................................................................................................................... 24
SAE Classification ........................................................................................................................................................... 25
4DISASSEMBLY / REASSEMBLY........................................................................................................... 28-65
Air filter support ................................................................................................................................................................ 30
Air restriction switch ......................................................................................................................................................... 29
Alternator/Cooling fan belt drive ....................................................................................................................................... 33
Big end bearing ................................................................................................................................................................. 58
Camshaft journals and housings - Dimensions ............................................................................................................... 47
Camshaft lobe measurement ........................................................................................................................................... 47
Camshaft timing - Belt Reassembly ................................................................................................................................37
Camshaft timing - Belt Tightening and Fastening ........................................................................................................... 38
Camshaft timing - Belt tightening tool ............................................................................................................................. 38
Camshaft timing pulley - Disassembly/Assembly ........................................................................................................... 37
Camshaft timing pulley - Reference marks .....................................................................................................................37
Camshaft, disassembly ....................................................................................................................................................46
Camshaft, journal and housing measurement ................................................................................................................46
Central main bearing caps ............................................................................................................................................... 60
Check the clearances between the bearings and the journal.......................................................................................... 60
Clearances between the bearings and corresponding pins ............................................................................................ 64
CONNECTING ROD ......................................................................................................................................................... 58
Connecting rod alignment ................................................................................................................................................ 59
Connecting rod with bearings and pin ............................................................................................................................. 58
Connecting tod, weight .....................................................................................................................................................58
Cooling fan ........................................................................................................................................................................33
Crankcase breather LDW 502 .......................................................................................................................................... 44
Crankcase vacuum regulator valve .................................................................................................................................. 43
Crankshaft axial clearance ...............................................................................................................................................61
Crankshaft front and back oil seal rings .......................................................................................................................... 62
This manual contains pertinent information regarding the repair of LOMBARDINI water-cooled, indirect injection Diesel
engines type LDW 502-602-903-1204-1204/T e LDW 702-1003-1404: updated March 15
th
, 2006.
CHAPTER INDEX

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)