Snapper NP2187520BV (7800439) Driven and Drive Disc Service, Cleaning Drive Disc & Driven Disc

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Driven and Drive Disc Service

Maintenance (Continued)

Maintenance

!

WARNING

!

DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.

Driven and Drive Disc Service

If the mower does not propel itself properly, check for the following problems:

C

D

B

E

A

Figure 23: Wheel drive components

1.Grease on the drive disc (A, Figure 23) causing slippage.

2.Broken or disconnected drive spring (B).

3.Driven disc (C) is out of adjustment.

4.Driven disc rubber is worn - does not contact drive disc properly.

5.Worn Poly-V belt (D) or engine drive belt (E).

If any of the above (1 thru 5) are causing problems, service as follows:

Cleaning Drive Disc & Driven Disc

If oil or grease on the drive disc or driven disc is causing slippage, clean the discs as follows:

1.Wipe away any oil or grease with a clean cloth.

2.Use either an approved grease solvent or hot, soapy water to clean drive disc or driven disc.

3.Rinse components with clean water.

4.Dry components with a clean cloth.

Drive Spring Repair/Replacement

If the drive spring (A, Figure 24) is loose, reconnect. If the spring is broken, replace with a new spring.

Note: Use a pair of needle nose pliers to install the drive spring.

IMPORTANT: If the drive system continues slipping, refer to the Troubleshooting section.

A

Figure 24: Replacing the drive spring

Driven Disc Adjustment

If the drive disc and driven disc are clean and the mower drive is still slipping, adjust the driven disc as follows:

1.Move the ground speed control (A, Figure 25) into the ‘fast’ position.

C

Figure 25: The ground speed control

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Contents 21” STEEL DECK WALK MOWERS SERIES Safety Instructions & Operators Manual forModels RP217020BDV 7800424 RP2187520BV RP2187520BVE 7800427 2167520BPRODUCT REGISTRATION Date of Purchase Retailer Retailers Phone Number EquipmentEngine Snapper at P.O. Box 1379, McDonough, GeorgiaTable of Contents Operator SafetyFeatures and Controls Operation MaintenanceImportant Operator Safety Instructions Protection for ChildrenSlope Operation PreparationImportant Operator Safety Instructions Continued Maintenance and StorageSafe Handling of Gasoline Continued From Previous Page OperationFeatures and Controls Features and ControlsOperation Pre-Start Check ListStarting and Operation Engine and Blade Briggs Quantum and Intek Series EnginesHandle Height Adjustment Operation ContinuedStopping Propelling the Mower Self-Propelled Models OnlyCutting Height Adjustment Recycling OperationRemoving the Recycling Cover Figure 7 Adjusting cutting heightInstalling the Discharge Deflector Installing the Grass Bag AdapterFigure 10 Installing the discharge deflector Figure 11 Installing the grass bag adapterInstalling the Recycling Plug Installing the Grass BagIMPORTANT Install the grass bag as a safeguard Figure 12 Installing the recycling plugMaintenance Maintenance - IntroductionService - After First 5 Hours Check Grease Level in TransmissionMaintenance Continued Service - PeriodicStorage Procedure Check Mower BladeMower Blade Replacement Standard Blade Wear LimitNinja Blade Wear Limit Blade SharpeningBlade Sharpening Continued Wheel Drive Control Adjustment Self-Propelled Models OnlyFigure 22 Wheel drive control adjustment Figure 21 Sharpening the mower bladeDriven and Drive Disc Service Cleaning Drive Disc & Driven DiscDrive Spring Repair/Replacement Driven Disc AdjustmentDriven Disc Adjustment Continued Driven Disc ReplacementFigure 26 Adjusting the driven disc Figure 27 Proper driven disc adjustmentDriven Disc Replacement Continued Driven Disc Bearing ReplacementFigure 29 Removing the driven disc assembly Figure 30 Replacing the driven discBelt Service Engine Drive Belt Replacement Stretch Type BeltsReplacing the Bearing On the Pulley End Of the Hex Shaft Figure 32 Engine drive belt routingEngine Drive Belt Replacement Stretch Type Belts - Continued Transmission Poly-V Belt ReplacementA B C D E F G Figure 33 Removing the drive discBattery Service New Battery PreparationBattery Service Battery StorageService Schedule Maintenance/Replacement PartsPROBABLE CAUSE TroubleshootingCORRECTIVE ACTION DISCLAIMER OF WARRANTY 2 YEAR LIMITED WARRANTYWarranties Page Page Page Product Specifications Common Service PartsPart Number Snapper Products