Lombardini LDW 502 User Manual

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FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06
170
171
172
8
Plunger barrel ring nut assembly/disassembly
To disassemble ring nut 9 fig. 169, use the suitable wrench A se.no.
7107-1460-029
 When refitting tighten it a torque of 34 Nm.
Plunger injection pump reassembly
To be able to insert the plunger in its barrel press with a finger and
at the same time slowly rotate lever 8 fig. 171 until guide M of the
plunger fig. 172 enters the lever seating.
Note: If by mistake the plunger is mounted with the spiral in the
wrong direction the pump won’t function (there is no danger
that the engine runs away).
Injection pump assembly/disassembly
Disassemble the unit following the progressive order of fig. 169.
Reassemble following the same steps in reverse order.
During reassembly, turn the plunger spiral L towards the non-return
valve 19, as follows.
Fuel system

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)