Manuale Officina LGW 523-627 - lombardini service

8Fuel systemPlunger barrel ring nut assembly/disassemblyTo 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.170Injection pump assembly/disassemblyDisassemble 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-returnvalve 19, as follows.171Plunger injection pump reassemblyTo be able to insert the plunger in its barrel press with a finger andat the same time slowly rotate lever 8 fig. 171 until guide M of theplunger fig. 172 enters the lever seating.Note: If by mistake the plunger is mounted with the spiral in thewrong direction the pump won’t function (there is no dangerthat the engine runs away).172- 76 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06