MAINTENANCE PLAN 195 2 - Loosen the drain screw (3) of the filter head (2). Use a 12 mm spanner. 3 - Unscrew the knob (4) of the fuel pump (5) completely. 4 - Act on the knob (4) until fuel without air bubbles flows out of the filter head. Tighten the drain screw (3). 5 - Press the knob (4) and tighten it completely. 6 - Start the engine. IMPORTANT • If the fuel does not flow out when the fuel pump lever is operated, rotate the driving shaft giving it one turn. • Do not let the starter run for more than 15 seconds. Wait at least 15 seconds before repeating the starting procedure.
• If the engine starts regularly and then stops or works ir- regularly, check if there is air in the circuit; if so, check the fuel filter, the water separator and the fuel pump for leaks. • After all the fuel has run out, bleed the circuit by proceed- ing as described above. 4.7.10.e DRAINING THE FUEL TANK DANGER • When draining the fuel tank, avoid spilling fuel, since this may cause fires. • If some fuel is accidentally spilled, clean the dirty area im- mediately, in order to prevent it from getting slippery and to avoid fires. DANGER • When draining the fuel tank, avoid spilling fuel, since this may cause fires.
• If some fuel is accidentally spilled, clean the dirty area im- mediately, in order to prevent it from getting slippery and to avoid fires. This operation serves to let all the impurities and the condensate flow out of the tank; remove the lower plug (1) and wait until clean fuel flows out. (Use a 17 mm spanner). 1 RWA34480 1 RWA34480 IMPORTANT • The tank must be drained before starting the engine, with temperatures exceeding 0°C; when the temperature is be- low 0°C, the tank must be drained at the end of work or in any case with the machine at operating temperature, to prevent the condensate from freezing.
• The condensate and the impurities that may have accu- mulated inside the tank must be eliminated before refuel- ling.