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Service Manual – SW5500, FLOORTEC R 985
28 - Engine System, Diesel
Functional Description
The engine system (YANMAR L70N) generates electric current for all machine functions
The assembly consists of an internal combustion engine and alternator, which are both connected to the
main crankshaft
The engine is a single-cylinder air-cooled diesel fuel type
Engine starting is performed by a starter motor
At a later stage, the running engine supplies the power to generate the current and to power the electrical
systems of the machine The surplus current is used to charge the batteries
The engine speed is fixed to 3,000 rpm, to grant a constant current to the electrical system.
The fuel tank is located inside the engine compartment, on the rear bulkhead The tank has a fuel level
indicator with float.
The fuel reserve icon is shown on the display when the remaining fuel in the tank is below 1 litre