Exmark S/N 790 Check Spark Arrester if equipped, Wheel Hub - Slotted Nut Torque Specification

Page 35
Check Spark Arrester (if equipped)

Maintenance

7.Before installing the new filters, apply a thin coat of Exmark Premium Hydro oil on the surface of the two rubber seals.

8.Install the new filters and torque to 14 ft-lb (19 N-m).

9.Fill the hydraulic system as stated in Check Hydraulic Oil Level section.

Exmark Premium Hydro Oil is recommended. Refer to the chart for an acceptable alternative:

Hydro Oil

Change Interval

Exmark Premium Hydro

500 Hours

Oil (Preferred)

 

Mobil 1 15W50

250 Hours

 

Figure 24

1. 0.1 inch max

2. No more than two

 

threads (0.1 inch max)

 

should be showing here.

10.Remove the catch pan and properly dispose of hydro oil and filter according to local codes.

11.Re-install the pump drive belt.

12.Start engine and move throttle control ahead to full throttle position. Move the speed control levers to the full speed and run for one minute. Shut down the machine, allow the hydros to cool and recheck oil level.

13.Remove the jack stands.

Note: Do Not change the 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 contaminants into the system.

4.If more than two threads (0.1 inch) are showing remove nut and install washer (P/N 1-523157) between hub and nut.

5.Torque the slotted nut to 200 ft-lb (271 N-m).

6.Then tighten nut until the next set of slots line up with the cross hole in shaft. Do Not loosen nut to align the slot. If required, tighten to the next set of slots.

7.Install new cotter pin (P/N 1-806800).

Note: Do Not use anti-seize on wheel hub.

Check Spark Arrester (if equipped)

Service Interval: Every 50 hours

Wheel Hub - Slotted Nut Torque Specification

Service Interval: After the first 100 hours

Every 500 hours thereafter

When tightening the slotted nut on the wheel motor tapered shaft:

1.Remove and discard the cotter pin.

2.Torque the slotted nut to 200 ft-lb (271 N-m).

3.Check distance from bottom of slot in nut to inside edge of hole. Two threads (0.1 inch) or less should be showing.

Wheel Hub - Slotted Nut Torque Specification WARNING

Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.

Do Not refuel or run engine unless spark arrester is installed.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Wait for muffler to cool.

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Contents Part No. 4500-471Rev. A LAZER Z MODELSFor Serial Nos 790,000 & Higher CALIFORNIA Proposition 65 Warning Model No Serial No IntroductionContents Safe Operating Practices SafetySafety Alert Symbol SafetyDANGER DANGERSafety Safety OperationDo Not mow slopes when grass is wet Using the Rollover Protection System ROPSSlope Operation SafetySafety Maintenance and StorageSafety Safety and Instructional Decals107-2102 109-7330 107-2112 Safety109-3148 109-7232Deck Drive Belt Routing Safety109-8483 109-9361Message Display SafetyPTO Switch Symbols 116-0211Model Numbers SpecificationsSpecifications Safety Interlock SystemSpecifications SeatHydrostatic Ground Drive System Tires & WheelsOverall Length DimensionsCutting Deck Overall WidthSpecifications Curb WeightAccessory Weight Table Worksheet Tread Width Center to Center of Tires, WidthwiseProduct Overview Product OverviewTorque Requirements Motion Control Levers OperationControls OperationOperation Ignition SwitchHour Meter Fuel Gauge PTO Engagement SwitchLow Voltage Indicator Fuel Shut-OffValveTransport Lock Operating InstructionsPre-Start Deck Lift PedalDisengaging the PTO Open the Fuel Shut-OffValveStarting the Engine Engaging the PTOOperation Stopping the EngineDriving the Machine Use caution when making turnsDriving in Reverse Adjusting the Cutting HeightAdjusting the Anti-ScalpRollers OperationOperation TransportingTransporting a Unit Operation Loading a UnitMaintenance MaintenanceRecommended Maintenance Schedules Service Interval As required Periodic MaintenanceCheck Battery Charge Service Interval Before each use or dailyService Interval Before each use or daily Check Safety Interlock SystemCheck Mower Blades MaintenanceCheck for Loose Hardware Service Air CleanerCheck Rollover Protections Systems Roll Bar Knobs Check Seat BeltCheck Hydraulic Oil Level Service Interval After the first 5 hoursService Interval Every 50 hours Change Engine OilMaintenance Check Condition Of BeltsLubricate Grease Fittings Lubricate Caster Wheel HubsLubricate Brake Handle Pivot Service Interval Every 200 hoursService Interval Every 100 hours Service Interval Every 500 hoursEvery 500 hours thereafter Wheel Hub - Slotted Nut Torque SpecificationService Interval After the first 100 hours Check Spark Arrester if equippedDielectric Grease AdjustmentsThread Locking Adhesives Copper-Based Anti-seize8.Raise the discharge deflector MaintenanceMaintenance Deck RemovalMaintenance Adjusting the Parking BrakePump Drive Belt Tension Deck Belt TensionMaintenance Electric Clutch AdjustmentMotion Control Linkage Adjustment Motion Control Damper AdjustmentMaintenance Motion Control Handle AdjustmentMotion Control Neutral Lock Pivot Adjustment Motion Control Full Forward Tracking AdjustmentRH Motion Control Shown Caster Pivot Bearings Pre-LoadAdjustmentMaintenance Clean Hydro Fan Cooling Guards CleaningClean Engine and Exhaust System Area Remove Engine Shrouds and Clean Cooling FinsMaintenance Battery DisposalWaste Disposal Motor Oil DisposalTroubleshooting TroubleshootingCorrective Action TroubleshootingProblem Possible CausePINK SchematicsSchematics Electrical DiagramLogic SchematicElectrical SchematicsSchematics Hydraulic DiagramGeneral Warranty Conditions and Products Covered Exmark Lazer Z and Lazer Z AS Turf Equipment3 Year Limited Commercial Warranty 5 Year or 750 Hours Limited Consumer WarrantyPage Page Description of Work Done Service RecordService Done By DatePage Page WALK-BEHINDACCESSORIES AND OPTIONS MID-MOUNTRIDING ACCESSORIES AND OPTIONSOUT-FRONTRIDING ACCESSORIES AND OPTIONS
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000 & higher specifications

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