Exmark 920 manual Lubricate Brake Handle Pivot, Lubricate Deck Lift Pivot, Check Spark Plugs

Page 37

Maintenance

 

Figure 25

1. Seal guard

2. Spacer nut with wrench

 

flats

2.Remove caster wheel from caster forks.

3.Remove seal guards from the wheel hub.

4.Remove one of the spacer nuts from the axle assembly in the caster wheel. Note that thread locking adhesive has been applied to lock the spacer nuts to the axle. Remove the axle (with the other spacer nut still assembled to it) from the wheel assembly.

5.Pry out seals, and inspect bearings for wear or damage and replace if necessary.

6.Pack the bearings with a NGLI grade #1 multi-purpose grease.

7.Insert one bearing, one new seal into the wheel.

Note: Seals (Exmark P/N 103-0063) must be replaced.

8.If the axle assembly has had both spacer nuts removed (or broken loose), apply a thread locking adhesive to one spacer nut and thread onto the axle with the wrench flats facing outward. Do Not thread spacer nut all of the way onto the end of the axle. Leave approximately 1/8 inch (3 mm) from the outer surface of the spacer nut to the end of the axle inside the nut.

9.Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing.

10.With the open end of the wheel facing up, fill the area inside the wheel around the axle full of NGLI grade #1 multi-purpose grease.

11.Insert the second bearing and new seal into the wheel.

12.Apply a thread locking adhesive to the 2nd spacer nut and thread onto the axle with the wrench flats facing outward.

13.Torque the nut to 75-80 in-lb (8-9 N-m), loosen, then re-torque to 20-25 in-lb (2-3 N-m). Make sure axle does not extend beyond either nut.

14.Reinstall the seal guards over the wheel hub and insert wheel into caster fork. Reinstall caster bolt and tighten nut fully.

Important: To prevent seal and bearing damage, check the bearing adjustment often. Spin the caster tire. The tire should not spin freely (more than 1 or 2 revolutions) or have any side play. If the wheel spins freely, adjust torque on spacer nut until there is a slight amount of drag. Reapply thread locking adhesive.

Lubricate Brake Handle Pivot

Service Interval: Every 200 hours

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

2.Lubricate brake handle pivot with a spray type lubricant or light oil.

Lubricate Deck Lift Pivot

Service Interval: Every 100 hours

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

2.Lubricate deck lift pivot with a spray type lubricant or light oil.

Check Spark Plugs

Service Interval: Every 200 hours

Remove spark plugs, check condition and reset gaps, or replace with new plugs. See Engine Owner’s Manual.

Change Fuel Filter

Service Interval: As required

A fuel filter is installed between the fuel tank and the engine. Replace when necessary.

For Kohler EFI Units:

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Contents
Lazer Z S-SERIES California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety Operation Slope Operation Using the Rollover Protection System RopsMaintenance and Storage For Kohler EFI Electronic Fuel Injection Units Safety and Instructional Decals 109-7232 109-8483 116-0752 PTO Switch Symbols Model Numbers SpecificationsSystems Hydrostatic Ground Drive System SeatTires & Wheels Cutting DeckOverall Width DimensionsOverall Length Overall HeightTread Width Center to Center of Tires, Widthwise Curb WeightWheel Base Center of Caster Tire to Center of Drive Tire Torque Requirements Accessory Weight Table WorksheetOperation Product OverviewControls Motion Control LeversChoke Control All Units Except Kohler EFI Ignition SwitchThrottle Control Brake LeverFuel Gauge Fuel Shut-Off ValveDrive Wheel Release Valves Pre-Start Raise the Rollover Protection System Rops Operating InstructionsOpen the Fuel Shut-Off Valve Starting the EngineDisengaging the PTO Engaging the PTOStopping the Engine Driving the MachineDriving Forward Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Transporting a Unit TransportingLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeDo Not jump start a weak battery if these conditions exist Recommended Jump Starting Procedure Check Mower Blades Check Rollover Protections Systems Roll Bar Knobs Check Safety Interlock SystemCheck Seat Belt Check for Loose Hardware Service Air CleanerChange Engine Oil Check Hydraulic Oil LevelCheck Condition Of Belts Check Tire PressuresLubricate Grease Fittings Lubricate Caster Wheel HubsLubricate Deck Lift Pivot Lubricate Brake Handle PivotCheck Spark Plugs Change Fuel FilterChange Hydraulic System Filter and Fluid Wheel Hub Slotted Nut Torque SpecificationThread Locking Adhesives Check Spark Arrester if equippedCopper-Based Anti-seize Dielectric GreaseDeck Leveling AdjustmentsDeck Belt Tension Pump Drive Belt TensionLeft Hand Brake Shown Adjusting the Parking BrakeElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Motion Control Neutral Lock Pivot Adjustment Motion Control Damper AdjustmentMotion Control Handle Adjustment Adjusting the Tilt Caster Pivot Bearings Pre-Load AdjustmentRemove Engine Shrouds and Clean Cooling Fins Clean Engine and Exhaust System AreaClean Hydro Fan Cooling Fins Clean Debris From MachineBattery Disposal Problem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Diagram All units except Kohler EFI SchematicsSchematics Electrical Logic Schematic All units except Kohler EFI Schematics Hydraulic Diagram General Warranty Conditions and Products Covered Page Page Date Description of Work Done Service Done By Service RecordPage This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options
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