Manuale Officina LGW 523-627 - lombardini service

Fuel system8Pump/injector unitDesigned by LOMBARDINI, the pump/injector is exclusive to FOCSseries engines.The injection system includes two, three, four identical pumps/injector units, each one of which feeds a cylinder.Note: On pumps/injector units of recent construction (for serialnumbers and references see the table on page 78) the pumphas been modified (see fig. 174).Following to this modification and others like the eliminationof cap 20 of fig. 169 the method of checking the staticinjection advance has changed as well, fig. 187-188 as that ofinjector setting, fig. 178.168169Pump/injector unit, components1 Seeger ring A Ring nut2 Tappet B O-ring3 Stop plate C Nozzle4 Plunger D Spacer5 Spring E Pressure rod6 Screw F Spring7 Bearing G Spacer8 Lever I Casing9 Ring nut L Control spiral10 Plunger guide O-ring M Plunger guide11 Cylinder12 Delivery valve13 Gasket14 Spring15 Filler16 Pin When remounting the injector tighten ring nut A at 70 Nm17 O-ring18 Non-return valve19 O-ring20 Cap screw (old type)21 Metal gasket (new type)FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06- 75 -