Exmark 720000 & Higher Dielectric Grease, Pump Drive Belt Tension, Pump Drive Belt Replacement

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Maintenance

•Pump drive sheave set screws.

•Line shaft sheave setscrews.

•Square head setscrews on Hydro pump control arms.

•Sheave retaining bolt in the end of engine crankshaft.

•Caster wheel spacer nuts.

•Fuel tank bulkhead fitting nuts.

•Motion control tab retaining bolt.

Adhesives such as “Loctite RC/609 or RC/680” or “Fel-Pro Pro-Lock Retaining I or Retaining II” are used on the following:

Fuel tank studs, where studs are inserted into tank.

Dielectric Grease

Dielectric grease is used on all blade type electrical connections to prevent corrosion and loss of contact.

Adjustments

Note: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit.

Pump Drive Belt Tension

Self-tensioning - No adjustment necessary.

Pump Drive Belt

Replacement

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

2.Remove pump drive belt.

3.Route new belt onto sheaves as shown in the decal located on the right hand side of the left hood support (see Figure 11).

Figure 11

Park Brake Adjustment

Check to make sure brake is adjusted properly.

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

2.Tilt seat forward and raise hood.

3.Pull the brake lever up into the engaged position.

4.Locate the park brake spring assembly (see Figure 12). There should be a gap of 1/8 inch (3 mm) between the yoke and thin nyloc nut on the brake bolt. If necessary, rotate the thin nyloc nut to obtain the 1/8 inch gap.

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Contents Frontrunnertm California Introduction Contents Training SafetySafety Alert Symbol Safe Operating PracticesSafety Operation Slope Operation Using the Rollover Protection System RopsMaintenance and Storage Safety and Instructional Decals 103-7218 107-2102 107-2112 109-2355 109-2356 109-2357 109-7413 Model Numbers SpecificationsSystems Tires & Wheels Hydrostatic Ground Drive SystemCutting Deck Dimensions Torque Requirements Product OverviewControls OperationOperating Instructions Pre-StartDisengaging the PTO Open the Fuel Shut-Off ValveStarting the Engine Engaging the PTODriving Forward Driving the MachineTransporting a Unit TransportingLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeEngine must initiate shutdown Check Safety Interlock SystemCheck for Loose Hardware Check Rollover Protections Systems Roll Bar PinsService Air Cleaner Check Seat BeltCheck Auxiliary Hydraulic Oil Level Check Hydraulic Oil LevelCheck Tire Pressures Lubricate Grease Fittings Check Condition Of BeltsLubricate Rear Caster Wheel Hubs Lubricate Motion Control Shaft Lubricate Brake Handle PivotLubricate Brake Rod Bushings Lubricate Motion Control Bronze BushingsChange Hydraulic System Filter Fuel Tank Mounting Hardware SpecificationsCheck Spark Plugs Change Fuel FilterPump Drive Belt Tension Pump Drive Belt ReplacementPark Brake Adjustment Dielectric GreaseMotion Control Linkage Adjustment Weight Transfer Spring Adjustment Clean Engine Cooling System Caster Pivot Bearings Pre-Load AdjustmentMotor Oil Disposal Remove Engine Shrouds Clean Cooling FinsBattery Disposal Waste DisposalProblem Possible Cause Corrective Action TroubleshootingTroubleshooting Schematics 31HP Ignition SwitchHydraulic Diagram Year Limited Warranty Exmark Turf Equipment Service Record Page See EXMARK’S Complete Line of Accessories