Engine System - Petrol90Service Manual – Floortec R 870Engine System - PetrolFunctional DescriptionThe engine system generates electric current for allmachine functionsThe assembly consists of an internal combustion en-gine and dynamotor, which are both connected to themain crankshaftThe engine is a single-cylinder air-cooled petrol typeThe engine start-up is made by the dynamotor towhich it is connectedThe dynamotor acts as a starter, using the batteryonly for the time necessary to start the engineAt a later stage, the running engine supplies thepower to the dynamotor to generate the current andto power the electrical systems of the machine Thesurplus current is used to charge the batteriesThe engine speed is fixed, 2,750 rpm, to grant a con-stant current to the electrical systemThe fuel tank is fastened outside the engine, in therear side of the machine The tank has a fuel level in-dicator with float, and a valve with integrated filter.The choke lever on the engine has been extended inorder to be easily activated from the driver’s seat po-sitionThe fuel reserve warning light turns on when the fuelin the tank is less than 2 2 litersThe engine is equipped with an oil level sensor (OilAlert), which purpose is to avoid damages caused byan insufficient oil quantity in the oil pan. Before theoil level goes below the safety limit, the system (OilAlert) automatically stops the engine shorting thespark plug to the chassisIf the engine stops and do not restart, check the en-gine oil level before doing any other troubleshootingprocedureWiring DiagramKEY CIRCUITFUSE (F4)IGNITIONKEY (SW1)EMERGENCYPUSH-BUTTON (SW0)MACHINE ONRELAY (K4)FRAME (FR)OILALERTENGINE STARTELECTROMAGNETICSWITCH (ES2)ENGINESPARK PLUG (SPK)ENGINEP200128