Exmark 850000 AND HIGHER manual Servicing the Spark Plug, Removing the Spark Plug

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Maintenance

Figure 23

1. Oil filter

3. Left rear tire

2.Vent plug

6.Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely.

CAUTION

Raising the mower for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the unit to fall, which could cause injury.

Do Not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

7.Start engine and move throttle control ahead to 1/2 throttle position. Disengage parking brake.

6 times). Check the oil level, and add oil as required after stopping the engine.

C.It may be necessary to repeat steps A and B until all the air is completely purged from the system. When the transaxle operates at normal noise levels and moves smoothly forward and reverse at normal speeds, then the transaxle is considered purged.

Do Not change hydraulic system oil (except for what can be drained when changing filter), unless it is felt the oil has been contaminated or been extremely hot.

Changing oil unnecessarily could damage hydraulic system by introducing contaminates into the system.

Servicing the Spark Plug

Service Interval: Every 200 hours/Every 2 years (whichever comes first)

Every 500 hours—Replace the spark plug.

As stated in the maintenance intervals, remove the spark plug, check condition, and reset the gap or replace with a new plug as necessary.

The spark plug is RFI compliant. Equivalent alternate brand plugs can also be used.

Type: Champion XC92YC

Champion RC12YC or QC12C may be used if your area does not require compliance with Canadian ICES-002, ISO 14982, or EN 55012.

Air Gap: 0.030 inch (0.76 mm)

WARNING

Engine must be running and drive wheels must be turning so adjustments can be performed. Contact with moving parts or hot surfaces may cause personal injury.

Keep fingers, hands, and clothing clear of rotating components and hot surfaces.

A.With the bypass valve open and the engine running, slowly move the directional control in both forward and reverse (5 or 6 times).

B.With the bypass valve closed and the engine running, slowly move the directional control in both forward and reverse directions (5 to

Removing the Spark Plug

1.Disengage the blade control switch, move the motion controls outward to the park position, stop the engine, and remove the key.

2.Pull the wire off of the spark plug (Figure 24). Clean around the spark plug to prevent dirt from falling into the engine and potentially causing damage.

Note: Due to the deep recess around the spark plug, blowing out the cavity with compressed air is usually the most effective method for cleaning. The spark plug is most accessible when the blower housing is removed for cleaning.

3.Remove the spark plug and metal washer.

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Contents Quest California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol General OperationChildren ServiceSlope Operation TowingExmark Riding Mower Safety General ServiceSafety Safety and Instructional Decals 103-6327109-6035 116-0532 117-2718 PTO Symbols 116-2321 Model Numbers SpecificationsSystems Dimensions Product Overview Torque RequirementsOperation ControlsOperating Instructions Recommended GasolineOperation Starting the Engine Using Stabilizer/ConditionerChecking the Engine Oil Level Gasoline/Alcohol blendsEngaging the Blades Operating the BladesStopping the Engine Disengaging the BladesTesting the Safety Interlock System Safety Interlock SystemUnderstanding the Safety Interlock System Driving Forward or BackwardForward Adjusting the Height of CutStopping the Machine BackwardPositioning the Seat Adjusting the Anti-Scalp RollersChanging the Seat Ride Suspension Adjusting the Tilt Adjusting the Motion Control LeversAdjusting the Height Pushing the Machine by HandTransporting a Unit TransportingSide Discharge To Operate the MachineOperating Tips Blade Maintenance When StoppingKeep the Underside of the Mower Clean Long GrassMaintenance Recommended Maintenance SchedulesLubrication Accessing the BatteryRaising the Seat Greasing the BearingsServicing the Engine Oil Engine MaintenanceServicing the Air Cleaner Servicing Paper ElementChanging the Oil and Filter Checking the Hydraulic Oil Level Change the Hydraulic System FilterServicing the Spark Plug Removing the Spark PlugInstalling the Spark Plug Cleaning the Blower HousingFuel System Maintenance Checking the Spark PlugElectrical System Maintenance Charging the BatteryRemoving the Battery Checking the Battery Charge Recommended Jump Starting Procedure Do Not jump start a weak battery if these conditions existInstalling the Battery Drive System Maintenance Checking the Tire PressureServicing the Fuses and Relay Before Inspecting or Servicing the Blades Mower Maintenance Servicing the Cutting BladesInspecting the Blades Checking for Bent BladesRemoving the Blades Sharpening the BladesInspecting the Belts Mower Belt MaintenanceInstalling the Blades Replacing the Mower BeltLeveling the Mower Deck 52 Inch DecksAdjusting the Blade Slope Replacing the Discharge Deflector Tracking Adjustment Brake Linkage AdjustmentCleaning Washing the Underside of the MowerPlug any holes in mower with bolts and locknuts Cleaning and Storage StorageTroubleshooting Problem Possible Cause Corrective ActionTo Pushing the Machine by Hand Schematics DiagramElectrical Logic Schematic Terminal a Terminal R Switch Ignition OFFExmark Quest Turf Equipment Page Page Service Record Page Page See EXMARK’S Complete Line of Accessories and Options