4 MAINTENANCEGB-204.9 FUEL SYSTEM ____________________________________________________________Refer to Section 4.23 for specific maintenance intervals.See Engine Manual for detailed procedures.Before replacing any filter, thoroughly clean the filterhousing and the area around the filter. Dirt must not beallowed to enter into fuel system.Bleed the fuel system after the fuel filter and lines havebeen removed, or the fuel tank has become empty.To change fuel filter:1. Close fuel valve on tank; then remove and discardthe existing filter.2. Apply a light coat of oil to the gasket and handtighten new filter.3. Fill fuel tank. Open fuel valve on tank and bleed thefilter. See Engine Manual. Clean any spilled fuelimmediately.4.10 BATTERY ________________________________________________________________Make absolutely certain the ignition switch is “Off” andthe key has been removed before servicing the battery.Tighten cables securely to battery terminals and apply alight coat of silicone dielectric grease to terminals andcable ends to prevent corrosion. Keep vent caps andterminal covers in placeKeep the cable ends, battery and battery posts clean.Verify battery polarity before connecting or disconnectingthe battery cables.1. When installing the battery, always assemble theRED, positive (+) battery cable first and the ground,BLACK, negative (-) cable last.2. When removing the battery, always remove theground, BLACK, negative (-) cable first and theRED, positive (+) cable last.3. Make sure battery is properly installed and securedto the battery tray.4.11 JUMP STARTING __________________________________________________________Before attempting to “jump start” the tractor, check thecondition of the discharged battery. Section 4.10When connecting jumper cables:1. Stop the engine on vehicle with good battery.2. Connect RED jumper cable to the positive (+)terminal on the good battery and to the positive (+)terminal on the “discharged” battery.3. Connect the BLACK jumper cable from the negative(-) terminal on the good battery to the frame oftractor with discharged battery.After cables have been connected, start the engine onthe vehicle with the good battery then start the tractor.CAUTIONAlways use insulated tools, wear protective glasses orgoggles and protective clothing when working withbatteries. You must read and obey all batterymanufacturer’s instructions!WARNINGBatteries generate explosive hydrogen gas. To reducethe chance of an explosion, avoid creating sparksnear battery. Always connect the negative jumpercable to the frame of the tractor with the dischargedbattery, away from the battery.!