Yard Machines 690 Thru 699 Hydrostatic Transmission Cooling, Fuel Filter, Cleaning Engine & Deck

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• Remove the belt from the transmission pulley and

 

 

 

Self-Tapping Screws

engine pulley, and remove from the unit.

 

 

 

 

 

 

 

• Reassemble using a new belt, following

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

instructions in reverse order.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine

Center Bolt,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lock Washer &

 

 

 

 

 

 

 

Pulley

 

 

 

 

 

 

 

Flat Washer

 

 

 

 

 

 

 

 

Deck

 

 

 

Belt Cover

Self-Tapping

 

 

 

 

 

 

 

 

Pulley

 

 

 

Belt Cover

Screws

 

 

 

 

 

 

 

 

 

Drive

Belt

Idler

 

Pulley

Deck

 

 

Pulley

Figure 21

Remove the belt cover at the two outside deck pulleys, by removing the self-tapping screws. See Figure 21 .

Release the tension on the spring loaded idler by pushing the idler toward the rear of the deck.

Remove the belt from around the idler pulleys, and remove from the three deck pulleys. See Figure 21 .

Reassemble new belts, following instructions in reverse order.

Drive Belt

Depress the clutch pedal and set the parking brake.

Remove the deck from the lawn tractor.

Raise and block the front wheels of the lawn tractor so you can work under it.

Remove the transmission panel by removing the parking brake knob, relief valve rubber boot and truss machine screws.

Raise the seat. Disconnect the battery cables. Remove the battery from the unit.

Disconnect the idler pulley spring which is attached to a bracket on the frame, inside the left rear wheel. Use a spring puller or other suitable tool. See Figure 22 .

Remove the three self-tapping screws from the cooling fan. Remove the fan.

Remove the center bolt, lock washer and flat washer, and let the engine pulley drop down so the belt is past the belt guards. See Figure 22 .

Roll the belt off of top sheave of engine pulley, onto the pulley hub.

Idler

Idler

Pulley

Pulley

Transmission

Spring

 

Pulley

Bracket

Figure 22

Hydrostatic Transmission Cooling

The hydrostatic transmission is cooled by the oil, fan and fins. If the hydrostatic transmission runs hot, check to see if the fan is in operating condition, the oil level is correct and the fins are clean.

NOTE: DO NOT use high pressure water spray or steam to clean the hydrostatic transmission.

WARNING: Disconnect spark plug wire and ground against engine before performing any adjustments, repairs or maintenance work on the tractor.

Fuel Filter

Your unit is equipped with a replaceable in-line fuel filter. Replace filter whenever contamination or discoloration is noticed. Order replacement filter through your authorized engine service dealer.

Cleaning Engine & Deck

Any fuel or oil spilled on the machine should be wiped off promptly. Grass, leaves, and other dirt must not be left to accumulate around the cooling fins of the engine or on any part of the machine.

Clean the underside of the deck after each mowing.

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Contents Operator’s Manual Table of Contents General Operation Important Safe Operation PracticesSlope Operation Children ServiceDo Not Your Responsibility Slope Guage Unpacking Handling BatteryIdentifying Battery Type Assembling Your Lawn TractorAttaching Seat Activating & Charging BatteryManual Adjustment Seat Attaching Steering WheelQuick Adjustment Seat Installing Mulching PlugAttaching Chute Deflector Tire Pressure Installing BatteryType a Battery Type B BatteryKnow Your Lawn Tractor Optional Features Stopping Engine Operating Your Lawn TractorGas And Oil Fill-Up Starting EngineGrass Collector Setting Cutting HeightManual Adjustment Seat Quick Adjustment SeatCutting Deck Engagement Brake AdjustmentWheel Adjustment Deck LevelingCarburetor Battery CareCleaning Battery Maintaining Your Lawn TractorCutting Blades LubricationDeck Belts 46 Deck Belt ReplacementBlade Mounting Torque Deck Belt 38 and 42 DecksDrive Belt Cleaning Engine & DeckHydrostatic Transmission Cooling Fuel FilterOil Drain Sleeve If equipped EngineOil Drain Valve If equipped Description Model No Optional EquipmentTrouble Possible Causes Corrective Action Trouble Shooting GuideYour Notes MANUFACTURER’S Limited Warranty for