Simplicity How to Change Drive Belts on Lawn Mowers: Diagrams and Replacement Instructions
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Troubleshooting, Adjustment & Service

HYDRAULIC PUMP DRIVE BELT REPLACEMENT

1.Park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.

2.Remove the PTO drive belt (see MOWER BELT REPLACEMENT for removal instructions).

3.Loosen the nut towards the front of the machine on the spring anchor hook (H, Figure 31) to release the majority of the belt tension. Use caution and remove the nut to completely release the tension.

4.Remove the old belt and replace it with the new one. Make sure the V-side of the belt runs in the grooves of the crankshaft pulley and pump pulleys (B & C, Figure 31).

5.Reinstall the anchor hook (H, Figure 31) into the anchor tab and loosely fasten the nut. Adjust the spring until a measurement of 7-3/4” is achieved from the outside if the spring hooks. Tighten nut.

6.Reinstall the PTO drive belt.

MOWER BELT REPLACEMENT

To avoid damaging belts, DO NOT

PRY BELTS OVER PULLEYS.

1.Park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.

2.Remove the hardware fastening the PTO clutch to the rubber anchor pad.

3.Remove the hairpin clip and clevis pin and remove the deck lift foot pedal. Lift the floor plate to gain access to the PTO drive belt.

4.Loosen the spring compression nut (B, Figure 32) to release the belt tension.

5.Slide the drive belt over the edge of the idler pulley. Drop the belt from the PTO clutch pulley groove.

6.Remove the old belt and replace with a new one. Make sure the V-side of the belt runs in the pulley grooves (Figure 33).

7.Install the drive belt on the PTO pulley, the spindle pulleys and idler pulleys. Tighten the spring com- pression nut (B, Figure 32) until the belt tension spring (A, Figure 32) is 1-1/2” long.

8.Reinstall the hardware fastening the clutch to the rubber anchor pad.

9.Run the mower under no-load condition for about 5 minutes.

B

FRONT

E

A

 

F

D

7-3/4”

 

C

C

 

G

H

Figure 31. Hydraulic Pump Drive Belt Replacement

A.

Pump Drive Belt

E.

Idler Pulley

B.

Crankshaft Pulley

F.

Idler Arm

C.

Pump Pulley

G.

Spring

D.

Idler Pulley (stationary)

H.

Spring Anchor Hook

B A

Figure 32. Mower PTO Belt

A.Belt Tension Spring

B.Spring Compression Nut

D

B

C

A

 

A

 

D

D

 

 

A

 

Figure 33. Mower PTO Belt Routing

A.

Spindle Pulley

C.

Spring-loaded Idler Pulley

B.

PTO Drive Belt

D.

Stationary Idler Pulley

26

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Contents Manual Ferris IndustriesDerby Limited Warranty FERRISFerris IndustriesTable of Contents Identification Numbers Identification NumbersTractor Identification tag Safety Rules Information General OperationSlope Operation Do NotSafety Rules & Information Service and MaintenanceChildren Transporting and StorageSafety Decals Decal Warning/DangerDecal Danger Decal Danger Decal Operation & ControlsFeatures & Controls Zero Turn Rider Seat Adjustment LeverIgnition Switch Control FunctionsFeatures & Controls Operating Zero Turn Rider General Operating SafetyChecks Before Starting Operating the Zero Turn Rider Starting the EngineStopping the Rider MowingZero Turn Driving Practice Smooth TravelForward Travel Practice Reverse Travel PracticePractice Turning In Place Practice Turning Around a CornerExecuting an End-Of-Row Zero Turn Storage Starting After Long Term StorageTemporary Storage 30 Days Or Less Long Term Storage Longer Than 30 DaysPage Regular Maintenance Check Tire PressuresSee Before Every Spring FallChecking / Adding Fuel Regular MaintenanceFuel Filter Battery Maintenance Checking the Battery FluidCleaning the Battery and Cables LubricationServicing the Mower Blades Removing the BladePage Troubleshooting Adjustments & Service Troubleshooting the RiderTroubleshooting, Adjustment & Service Troubleshooting the MowerGround Speed Control Lever Adjustment Seat AdjustmentSpeed Balancing Adjustment Parking Brake Adjustment Suspension Height AdjustmentPTO Clutch Adjustment Blade Brake CheckNeutral Adjustment Neutral Spring Return AdjustmentCutting Height Adjustment Deck Leveling AdjustmentHydraulic Pump Drive Belt Replacement Mower Belt ReplacementBattery Service Checking Battery VoltageCharging a Completely Discharged Battery Jump Starting With Auxilary Booster BatteryVehicle Battery Jumper Cable To Ground Starter Switch Jumper Cable StartingEngine Block General Information HOW and When to WATER, Fertilize & AerateTypes of GRASS, Climate and Conditions Lawn Care & Mowing Information Tall Grass Requires Incremental CuttingInch Proper Cutting HeightWhen and HOW Often to MOW What Mowing Patterns to USEProper Broadcast Mowing Mowing MethodsProper Mulching How to start a healthy compost pile CompostingTips On Dealing With Clippings Methods actually contribute to a healthy lawnSolutions for Common Mowing Problems StreakingStepped Cutting Stepped CuttingScalping Uneven CuttingStingers Technical Manuals Common International SymbolsChoke LC-9
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