Briggs & Stratton FB13250BS manual Blade Brake Adjustment, Mower Belt Adjustment

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Troubleshooting, Adjustment, & Service

BLADE BRAKE ADJUSTMENT

WARNING

DO NOT place hands or feet under mower deck and away from blade.

This machine is capable of throwing objects and debris. Keep bystanders away.

DO NOT touch any rotating parts (pulleys, belts, etc.). Loose clothing, gloves, etc. can become entangled.

The mower blade should stop within 5 seconds after the Blade Engagement Lever is moved to the DISEN- GAGED position. This adjustment is checked by:

1.Remove blade clutch cover plate (A, Figure 19).

2.Start engine.

3.With mower blade engagement lever in the DISEN- GAGED position, note spindle bolt (A, Figure 18) in center of pulley (bolt is fastened to blade spindle and indicates blade rotation). If clutch rod is adjusted properly, spindle should not turn.

Figure 18 - Blade Spindle Brake

A.Spindle Bolt

4.Move mower blade engagement lever into the ENGAGED position. Spindle should begin turning.

5.Disengage clutch. Blade should stop turning within 5 seconds. If the blade does not stop within 5 seconds, see Blade Clutch Adjustment Section.

Figure 19 - Belt Adjustments

A.Clutch Cover Plate

B.Mower Blade Idler Pulley Lock Nut

C.Mower Blade Idler Pulley Adjustment Nut

D.Traction Drive Idler Pulley Lock Nut

E.Traction Drive Idler Pulley Adjustment Nut

MOWER BELT ADJUSTMENT

If the mower blade drive belt needs adjustment:

1.Loosen mower blade idler pulley lock nut (B, Figure 19).

2.Loosen or tighten mower blade idler pulley adjust- ment nut (C, Figure 19) as required.

A

B

3/8” Max.

C

Figure 20 - Mower Belt Deflection

A.Belt Clutch Pulley

B.Belt

C.Idler Pulley

Belt deflection should be approximately 3/8" halfway between the belt clutch (A, Figure 20) pulley and the idler pulley (C).

3.Tighten idler pulley lock nut.

4.Test mower and repeat adjustment as required.

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Contents Mfg. No Model No Description OPERATOR’S ManualTable of Contents General Operation Safe Operation Practices for WALK-BEHIND MowersStatement of Usage Children Safety Rules and InformationService Slope OperationSafety Decals Safety Rules & InformationDecal Danger Flying Objects Decal WarningDecal Engine Throttle Control Decal Danger DismembermentControl Functions Features & ControlsTo Start Engine Starting the EngineEngaging the Transmission Before Starting EngineTo Propel Unit Forward Operating the MowerTo Propel Unit In Reverse To Disengage Cutting Blade ENGAGING/DISENGAGING the Cutting BladeStorage To Adjust Cutting HeightLubricate Rear Axle Shafts Regular MaintenanceService Interval Every 25 Hours LubricationCleaning the Battery and Cables All Models Except 9HP Regular MaintenanceBattery Service Cleaning the Battery and Cables 9HP ModelsRemoving the Blade Servicing the Mower BladesTroubleshooting Troubleshooting Adjustment, & ServiceTroubleshooting Troubleshooting, Adjustment & ServiceSerial Number 012003001-Up Troubleshooting, Adjustment, & ServiceTravel Control Adjustment Serial NumberShut off engine before attempting this adjustment procedure Blade Clutch AdjustmentMower Belt Adjustment Blade Brake AdjustmentFor S/N 0 Traction Drive Belt AdjustmentFor S/N 071601076 up Mower Belt Replacement Troubleshooting, Adjustment & ServiceMaintenance Items SpecificationsParts & Accessories Replacement Parts