WORKSHOP MANUAL - lombardini service
WORKSHOP MANUAL - lombardini service
WORKSHOP MANUAL - lombardini service
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5<br />
Lubrification circuit<br />
Oil pressure regulating valve<br />
Components:<br />
1 Valve<br />
2 Spring<br />
3 Gasket<br />
4 Screw cap<br />
Spring length = 27.50÷27.75 mm<br />
Blow the valve’s seating with compressed air and carefully clean all<br />
the components before remounting them.<br />
Nota: The valve begins to open at a pressure of 4.5÷5.5 bar.<br />
129<br />
Oil filter cartridge<br />
Components:<br />
1 Gasket<br />
2 Plate<br />
3 Rubber element<br />
4 Spring<br />
5 Filtering element<br />
6 By-pass valve<br />
7 Spring<br />
Characteristics:<br />
130<br />
Maximum operating pressure: ............................. 7 bar<br />
Maximum bursting pressure: ............................... 20 bar<br />
Degree of filtration: .............................................. 15 µ<br />
By-pass valve calibration:.................................... 1,5÷1,7 bar<br />
Total filtration surface: ......................................... 730 cm 2<br />
Oil pressure check<br />
Once remounted fill the engine with oil, fuel and coolant.<br />
Remove the pressure switch, fit a union and connect a 10 bar<br />
pressure gauge.<br />
Start the engine and check how pressure is affected by oil<br />
temperature.<br />
Nota: With a maximum operating temperature of 120°C at 900 rpm<br />
the oil pressure must not be less than 1 bar.<br />
131<br />
- 56 - FOCS Workshop Manual_cod. 1.5302.858_1° ed_ rev. 00
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