Simplicity 300 Series PTO clutch adjustment, Adjust PTO Clutch Window Adjustment Nut Feeler Gauge

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Troubleshooting, Adjustment, & Service

PTO clutch adjustment

WARNING

To avoid serious injury, perform adjustments only with engine stopped, key removed and tractor on level ground.

Check the PTO clutch adjustment after every 250 hours of operation. Also perform the following procedure if the clutch is slipping or will not engage, or if a new clutch has been installed.

1.Remove key from ignition switch and disconnect spark plug wires to prevent the possibility of accidental starting while the PTO is being adjusted.

2.See Figure 34. Note the position of the 3 adjustment windows (A) in the side of the brake plate and the nylock adjustment nuts (B).

3.Insert a .012”-.015” (2,5-4mm) feeler gauge (C) through each window, positioning the gauge between the rotor face and the armature face as shown in Figure 35.

4.Alternately tighten the adjustment nuts (B, Figure 34) until the rotor face and armature face just contacts the gauge.

5.Check the windows for an equal amount of tension when the gauge is inserted and removed, and make any necessary adjustments by tightening or loosening the adjustment nuts.

NOTE: The actual air gap between the rotor and armature may vary even after performing the adjustment procedure. This is due to dimensional variations on component parts, and is an acceptable condition.

6.Check the mower blade stopping time. The mower blades and mower drive belt should come to a complete stop within five seconds after the electric PTO switch is turned off.

7.Perform the BLADE BRAKE CHECK found in the MAINTENANCE Section. Mower blades and mower drive belt should come to a complete stop within five seconds after electric PTO switch is turned off.

A

B

B

B

Figure 34. PTO Clutch Adjustment

A.Adjustment Window (Qty. 3, one shown)

B.Adjustment Nut

B

A

C

Figure 35. Adjust PTO Clutch

A.Window

B.Adjustment Nut

C.Feeler Gauge

36

Image 38

Contents Mower Decks 18HP Hydro Tractors20HP Hydro Tractors 1732286Page Table of Contents Safety Rules & Information Operating Safety Safety Rules and Information Slope OperationSafety Rules & Information General OperationIgnition System Service & Maintenance Safe Handling of GasolineNorth American Identification NumbersCE Identification Tag Markings CE ModelsNorth American Models Safety DecalsSafety Decals All ModelsCE Safety Icons Safety IconsChoke Control FunctionsThrottle Control HeadlightsFeatures & Controls Hourmeter Volt Power OutletParking Brake Function Automatic Controlled TractionAdding Fuel General Operating SafetyOperational Safety Checks Stopping the Tractor & Engine Operating the TractorStarting the Engine Driving The TractorAttachment Operation in Reverse Pushing the Tractor by HandMowing in Reverse Adjusting Mower Cutting Height 38, 44 & 50 Mower Decks Adjusting Mower Cutting Height 40 Mower DecksManual Lift Models Lift Variations When Using AttachmentsAttaching a Trailer Snowthrower Dozer E Applications MowerSimplicity, Massey Ferguson or Agco Models Mower Deck Removal & InstallationInstalling the Mower Deck Removing the Mower DeckSnapper Models Upper Hanger Upper Hole Lift Hook Lower Hole Long HubStorage How High To Mow the Grass How and When to WaterFertilize & Aerate Tall Grass Requires Incremental CuttingProper Mowing Speed When and How Often to MowLawn Care & Mowing Information Limitations of Mulching Decks Using a Mulching Mower Benefits of Proper MulchingUsing the Side Discharge Deflector Correct Ground Speed & Engine SpeedRegular Maintenance Before Every Spring Each Hours 100 250 Fall UseRegular Maintenance Service Interval Every 100 Hours Battery MaintenanceCleaning the Battery and Cables Service Interval YearlyOil LubricationGrease Service Interval Every 100 Hours or As Required Servicing the Mower BladesCheck Mower Blade Timing 40 Mowers Check Blade TimingTransmission Identification Transmission MaintenanceK57 Maintenance Maintenance Records Troubleshooting Adjustment, & Service TroubleshootingTroubleshooting, Adjustment, & Service Tractor TroubleshootingPitch Adjustment Seat AdjustmentBattery Charging Seat Slide AdjustmentBrake Adjustment Steering Wheel AdjustmentSteering Gear Adjustment Thicker Spoke Faces SeatPTO clutch adjustment Adjust PTO Clutch Window Adjustment Nut Feeler GaugeHook Tractor Lift Arm Mower AdjustmentsGauge Wheels Select Models Jam Nut WasherLeveling The Mower Leveling The Mower Side-to-Side, J-Hook Models LocknutTo avoid damaging belts, do not PRY Mower Belt Replacement44 & 50 PTO Belt Replacement GapArbor Drive Belt Replacement 44 & 50 Mowers Mower PTO Belt Replacement Mower Arbor Drive Belt Replacement Release Cogged Belt Tension a /8 Ratchet and ExtensionMower Drive Belt Replacement Broadmoor / 300 / 1600 / 2600 Series 20 HP* Briggs & Stratton18 HP* Briggs & Stratton K57Optional Accessories Replacement PartsMaintenance Items Technical ManualsO D U C T S