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.b.Tighten air bleed valve (B) securely, and continue to pump primer ten timesfile:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (20 of 26) [4/3/2005 11:13:09 AM] Service Engineor until resistance is felt.6.If the fuel system needs further bleeding, see Bleeding Fuel System inSERVICE ENGINE.7.Lower hood.Replacing Fuel Filter Elementc CAUTION: Avoid injury! Fuel vapors are explosive and flammable:· Do not smoke while handling fuel.· Keep fuel away from flames or sparks.· Shut off engine before servicing.· Cool engine before servicing.· Work in a well-ventilated area.· Clean up spilled fuel immediately.1.Thoroughly clean fuel filter assembly and surrounding area.MX326412.Loosen drain plug (A) and air bleed valve (B); drain fuel into a suitablecontainer.3.Close the air bleed valve.file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (21 of 26) [4/3/2005 11:13:09 AM] Service Engine4.Firmly grasp the filter element (C) and rotate it counterclockwise 1/4 turn.Remove filter element.5.Inspect filter mounting base for cleanliness.Clean as required.6.Install new filter element by pushing up firmly into mounting base, then turnclockwise until it locks in place.Be sure element is firmly seated in base.NOTE: A plug is provided with the new element for plugging the used element.7.Follow instructions in Bleeding Fuel System in SERVICE ENGINE.Bleeding Fuel Systemc CAUTION: Avoid injury! Fuel vapors are explosive and flammable:· Do not smoke while handling fuel.· Keep fuel away from flames or sparks.· Shut off engine before servicing.· Cool engine before servicing.· Work in a well-ventilated area.· Clean up spilled fuel immediately.Any time the fuel system has been opened up for service (lines disconnected orfilter removed), it will be necessary to bleed air from the system.NOTE: Fuel tank must be full of fuel before bleeding fuel system.file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (22 of 26) [4/3/2005 11:13:09 AM] Service EngineMX326411.Pump the hand primer (A) ten strokes.2.Turn the air bleed valve (B) open to release air and then close it.3.Repeat steps 1 and 2 two more times.You should feel pressure build up inthe system.4.Start the engine.If engine does not start, repeat steps 1 and 2.Cleaning Grille and Side ScreensIMPORTANT: Avoid damage! Grille and side screens must be clean to preventengine from overheating and to allow adequate air intake.file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (23 of 26) [4/3/2005 11:13:09 AM] Service EngineMX326401.Check grille (A) and side screens (B), on both sides, for dirt, grass clippingsand debris.2.Clean with a brush or cloth.Cleaning Radiator Screen and Finsc CAUTION: Avoid injury! Compressed air can cause debris to fly along distance.· Clear work area of bystanders.· Wear eye protection when using compressed air for cleaning purposes.· Reduce compressed air pressure to 210 kPa (30 psi).IMPORTANT: Avoid damage! The radiator cooling screen must be clean toprevent engine from overheating and to allow adequate air intake.1.Park machine safely.(See Parking Safely in the SAFETY section.)2.Raise hood.file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (24 of 26) [4/3/2005 11:13:09 AM] Service EngineMX326373.Lift and remove radiator screen (A) off of clips (B) on top of radiator.4.Clean screen with compressed air, brush or cloth, or screen may be carefullywashed to remove dirt and debris.MX32639file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410.html (25 of 26) [4/3/2005 11:13:09 AM] Service EngineMX326385.Remove all dirt and debris from radiator fins (C), and fan shroud (D) usingcompressed air or water.6.Install radiator screen.7.Lower hood.file:///C|/projects/jd/manuals/utility/4120-4720/.eomview/omlvu16217_g4/output/omlvu16217_g410 [ Pobierz caÅ‚ość w formacie PDF ]