Briggs & Stratton 5900625, 5901170, 5900629, 5900624, 5900670 Hydraulic Pump Drive Belt Replacement

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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.Remove the hardware that secures the clutch anchor pad to the PTO clutch.

4.Loosen the nut towards the front of the machine on the spring anchor hook (G, Figure 43) to release the majority of the belt tension. Use caution and remove the nut to completely release the tension.

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

6.Reinstall the anchor hook (G) into the anchor tab and loosely fasten the nut. Adjust the anchor hook until a measurement of 8-3/8” (21,2 cm) is achieved from the outside if the spring hooks. Tighten nut.

7.Reinstall the clutch anchor pad to the PTO clutch and secure with the hardware previously removed.

8.Reinstall the PTO drive belt.

	B
	D	A
8 3/8”	E
(21,2 cm)
C		C
C
	F	G

Figure 43. Hydraulic Pump Drive Belt

Replacement

A.Pump Drive Belt

B.Crankshaft Pulley

C.Pump Pulley

D.Idler Pulley

E.Idler Arm

F.Spring

G.Spring Anchor Hook

Troubleshooting

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Contents Description Briggs & Stratton Yard Power Products GroupModel Number Date Purchased Table of Contents Operating Safety Slope Operation Roll Bar Use Fuel and Maintenance Training OperationPreparation Children Slope OperationTowed Equipment RIDE-ON Units EmissionsMaintenance and Storage Service and MaintenanceSafe Handling of Gasoline Roll BAR Instructions Operational WarningsInspection and Maintenance of the Roll BAR Seat Belt Identification Numbers IdentificationSafety Decals North American Safety Icons Safety Interlock SystemOperational Safety Checks AIR Cooled Models only Seat Adjustment LeverIgnition Switch Control FunctionsParking Brake PTO Power Take Off SwitchHour Meter / Maintenance Reminder Throttle ControlLiquid Cooled Models only Water Temperature Gauge Checks Before Starting General Operating SafetyNever allow passengers to ride on the unit Stopping the Rider Starting the EnginePushing the Rider by Hand Forward Travel Practice Zero Turn Driving PracticeSmooth Travel Reverse Travel PracticeExecuting Turns Practice Turning Around a Corner Practice Turning In PlaceExecuting an End-Of-Row Zero Turn TurningHeight of Grass MowingMowing Recommendations Tall Grass Requires Incremental CuttingMowing Patterns When and How Often to MowMowing Methods Proper Broadcast MowingAttaching a Trailer Proper MulchingTo raise the roll bar Raise & Lower the Roll BARTo lower the roll bar Keep roll bar in the raised position and use seat beltTemporary Storage 30 Days Or Less StorageStarting After Long Term Storage Long Term Storage Longer Than 30 DaysEngine Maintenance Safety ItemsRider Maintenance Before Every Spring Each 100 250 Fall Use HoursFuel Filter Check Tire PressuresChecking / Adding Fuel Change OIL & FilterAir Cooled Models Check Hydraulic OIL LevelChange Hydraulic OIL Filter Liquid Cooled ModelsCheck Engine Coolant Level Change Engine Coolant Clean Radiator & ScreenPressurized System Oil LubricationGrease PivotsCleaning the Battery and Cables Air Cooled Models Battery MaintenanceCleaning the Battery and Cables Liquid Cooled Models Servicing the Mower Blades Removing the BladeTroubleshooting Warning Troubleshooting the RiderTroubleshooting the Mower Rider TroubleshootingTroubleshooting Common Cutting Problems StreakingGround Speed Control Lever Adjustment Seat AdjustmentSpeed Balancing Adjustment Adjustment Linkage Rod Neutral AdjustmentRETURN-TO-NEUTRAL Adjustment RH side shownParking Brake Adjustment Parking Brake Adjustment Brake Spring Adjustment NutTo adjust the spring pre-load Suspension AdjustmentTo adjust the upper mounting position Foot Pedal Adjustment Mowing Height AdjustmentTo adjust pedal position Inner Rod Deck Lift ROD Timing AdjustmentOuter Rod Deck Lift Spring Deck Leveling Adjustment4 Locations Hydraulic Pump Drive Belt Replacement Mower Belt Replacement DeckCharging a Completely Discharged Battery Battery ServiceChecking Battery Voltage Jump Starting With Auxiliary Booster BatteryMake Certain Vehicles do not Touch This HOOK-UP for Negative Ground VehiclesJump Starting Chassis DimensionsEngine TransmissionsFerris Limited Warranty Tractor Belts and BladesHP Briggs & Stratton Mower Deck