Cub Cadet 8454 manual Bleeding the Fuel System, Servicing the Fuel Filter, Checking the Fuel Lines

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•Use No. 2 diesel fuel. Use No. 1 diesel fuel if the temperature is below 15° F (-10°C).

•The fuel tank capacity is approximately 10.6 gal. Do not overfill.

Bleeding the Fuel System

WARNING: Do not bleed the fuel system when the engine is hot.

Air must be bled from the fuel system when the fuel filter or fuel lines are removed; the fuel tank is completely emptied; or the tractor has not been used for a long period of time.

•Fill the fuel tank with No. 2 diesel fuel and make certain the shut-off valve on the fuel filter is open.

•Loosen the air vent cock on the injection pump two or three turns by hand, then start to turn the engine over. See Figure 51.

Fuel Line

Turn Air

Vent Cock

Figure 51

•When there are no more air bubbles in the fuel line, tighten the air vent cock.

Servicing the Fuel Filter

WARNING: When servicing the fuel fil- ter element, take all precautions to prevent dust or dirt from entering the fuel system. Contaminants will cause premature wear and/or malfunction of the injection pump and injection nozzles.

The fuel filter should be cleaned after every 100 hours of operation, and replaced after every 400 hours.

•Make certain the area is free of dust and dirt.

•Close the shut-off valve on the fuel filter. See Figure 52.

Shut-off Valve

Close

Fuel Open

Filter

Figure 52

•Unscrew the retaining ring and remove the ring and fuel filter bowl from the filter. Use care not to lose the O-ring and spring. See Figure 53.

Filter Body

O-ring

Filter Element (DD-84612-4316-0)

Spring

O-ring

Bowl

Retaining Ring

Figure 53

•Flush the bowl out with clean diesel fuel.

•Remove the element and either dip it into a con- tainer of clean diesel fuel to clean it, or replace it with a new element.

•Install the new, or cleaned, element onto the fil- ter body.

•Install the filter bowl and retaining ring over the element, and tighten the retaining ring to secure.

•Bleed the air from the fuel system using the air vent cock on the injection pump. Refer to Figure 51.

Checking the Fuel Lines

WARNING: The fuel line hoses are subject to wear and natural aging. A leaking fuel line may allow fuel to come into contact with sources of ignition, and could cause a fire.

The condition of the fuel line hoses and clamps should be checked every 100 hours or six months (whichever occurs first), and they should be replaced every two years. Refer to Figure 51.

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Contents Operator’s Manual Important Read Safety Rules and Instructions CarefullyCalling Service Information Table of ContentsTo the Owner Tractor Model Plate Recording Model and Serial Number InformationEngine Information Transmission InformationGeneral Operation Important Safe Operation PracticesPage Page Children Slope OperationDo not Service Safety Frame RopsOperating the PTO Page Safety Labels Safety Labels Switches and Dash Mounted Controls Controls and FeaturesIgnition Switch Turn Signal Switch Light SwitchHazard Lamp Switch PTO SwitchHand Throttle Lever Forward/Reverse Shift LeverInstrument Panel Tachometer Hourmeter Clutch Pedal Floor Board and Fender Mounted ControlsBrake Pedals Right and Left Main Shift Lever Foot ThrottleHi-Lo Range Shift Lever Auxiliary Hydraulics LeverDifferential Lock Pedal Front Wheel Drive LeverHydraulic Control Levers Seat Adjustment Lever PTO Safety SwitchBrake Pedal Lock Rollover Protective Structure Rops OperationPRE-STARTING Checks Fueling the TractorStarting the Engine NEW Tractor BREAK-IN ProceduresDriving the Tractor Stopping the EngineStopping the Tractor Driving on Slopes Turning the TractorDriving on Roadways Travel Speeds Check While OperatingUsing the Front Wheel Drive Using the Differential LockUsing the Position Control and Draft Control Levers Using the Three Point Hitch Using the DrawbarGround Penetration w/Draft Control and Position Surface Penetration w/Draft Control OnlyLifting Rods Top LinkCheck Links Tractor Weighting Using Remote HydraulicsAdjusting the Seat AdjustmentsAdjusting Front Wheel TOE-IN Adjusting Front AxleBrake Adjustment Adjusting the FAN Belt TensionClutch Adjustment Adjusting the Micro Switch Height To AdjustAdjusting Wheel Tread Checking Steering Wheel Lubrication Table MaintenanceGeneral Information Service Intervals Operation to Lubrication and Maintenance ChartFuel System Accessing the Engine CompartmentServicing the Fuel Filter Bleeding the Fuel SystemChecking the Fuel Lines Checking the Engine Oil Level Engine OIL and OIL FilterAdding Engine Oil Changing Engine Oil and Filter Checking the Transmission Oil Level Transmission OIL and OIL FilterChanging the Transmission Oil and Filter Checking the Front Axle Oil Lever Servicing the Front AxleAdding Front Axle Oil Changing the Front Axle OilDraining the Clutch Housing Servicing the AIR CleanerServicing the Cooling System Checking and Cleaning Radiator ScreenChecking and Adding Coolant Checking the Radiator Hoses Changing the CoolantLubricating the Tractor Top Link Holder Lube Fitting Steering Cylinder General Battery Information Servicing the BatteryBattery Removal Battery MaintenanceBattery Storage Re-charging the BatteryServicing the Electrical System Fuses Fuse BoxMain Slow Blow Fuse Tire MaintenanceTractor Storage Engine Troubleshooting TroubleshootingWhen Engine is Difficult To Start When Color of Exhaust Is Especially Bad When Output Is InsufficientWhen the Engine Must Be Stopped Immediately When Engine Suddenly StopsTractor Troubleshooting When Tractor Does Not Move While Engine Is RunningCondition of Battery Cause Countermeasures Battery TroubleshootingModel SpecificationsPTO CLEVELAND, Ohio CUB Cadet LLC Post Office BOX