Exmark 4500-686 Rev. B Clean Grass Build-Up Under Deck, Cleaning the Discharge Tunnel and Plug

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Maintenance

Cleaning

Clean Grass Build-Up Under Deck

Service Interval: Before each use or daily

1.Stop engine, wait for all moving parts to stop, and remove spark plug wire.

2.To ensure the best performance, keep the underside of the lawn mower housing clean.

CAUTION

The mower may dislodge material from under the mower housing.

Wear eye protection.

Stay in the operating position (behind the handle).

Do Not allow bystanders in the area.

Washing Method

1.Position the lawn mower on a flat concrete or asphalt surface near a garden hose.

2.Start the engine.

3.Hold the running garden hose at handle level and direct the water to flow on the ground just in front of the right rear tire (Figure 35).

Figure 35

4.Engage the blade.

Note: The blade will draw in water and wash out clippings. Let the water run until you no longer see clippings being washed out from under the housing.

5.Disengage the blade, stop the engine and wait for all moving parts to stop.

6.Turn off the water.

7.Start the lawn mower, engage the blade, and let the lawn mower run for a few minutes to dry out its components.

Scraping Method

If washing does not remove all debris from under the lawn mower, scrape it clean.

1.Disconnect the wire from the spark plug.

2.Drain the fuel from the fuel tank. Refer to

Emptying the Fuel Tank and Cleaning the Fuel Filter section.

3.Tip the lawn mower onto its right side.

4.Remove the dirt and grass clippings with a hardwood scraper. Avoid burrs and sharp edges.

5.Turn the lawn mower upright.

6.Fill the fuel tank.

7.Connect the wire to the spark plug.

Cleaning the Discharge Tunnel and Plug

Service Interval: Before each use or daily

Always be sure that the discharge tunnel door closes securely when you release the handle. If the debris prevents the discharge door from closing securely, clean the inside of the discharge tunnel and the door thoroughly.

WARNING

Grass clippings and other objects can be thrown from an open discharge tunnel. Thrown objects can cause serious injury or kill the operator or bystanders.

Never start or operate the lawn mower unless one of the following is true:

The discharge tunnel plug is locked securely in the discharge tunnel.

The grass bag is locked in place.

The optional rear discharge chute is locked in place.

The discharge tunnel door is closed.

Cleaning Under the Belt

Cover (Self-Propelled Units

Only)

Service Interval: Every 50 hours

1.Stop the engine and wait for all moving parts to stop.

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Contents Commercial California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Maintenance and Storage Slope OperationSafety and Instructional Decals 109-9317 116-1922 116-2685 117-2718 116-1900 116-2737 Specifications DimensionsModel Numbers SystemsProduct Overview OperationControls Blade Control BailEngine Stop Switch Throttle-Choke Lever ECXHN21Choke Control ECXHNBBC21 Blade Control Lock Lever Blade Brake Clutch Units OnlyOperating Instructions Handle AdjustmentPre-Start Open the Fuel Shut-Off Valve Starting the EngineUsing the Mulch Plug Stopping the EngineAuthorized Service Dealer Test Using the Grass Bag Adjusting the Cutting HeightUsing the Grass Bag Operating Tips Maintenance Recommended Maintenance SchedulesCheck Engine Oil Level Checking the Blade Brake Clutch Blade Brake Clutch OnlyEmptying the Fuel Tank and Cleaning the Fuel Filter section Check the Mower BladeCheck for Loose Hardware Service Air Filter Kawasaki Units Service Air Filter ECSHN21 UnitsService Air Filter ECXHNBBC21 and ECXHN21 Units Damaged or excessively dirtyChange Engine Oil Emptying the Fuel Tank and Cleaning the Fuel Filter Change Oil Filter ECXKA21 and ECXKABBC21Check Condition Of Belt Self-Propelled Units Only Check Spark PlugsAdjustments Adjusting the Self-Propel Drive Self-Propelled Units OnlyAdjustment of drive cable nuts Cleaning Under the Belt Cover Self-Propelled Units Only Clean Grass Build-Up Under DeckCleaning the Discharge Tunnel and Plug Screws BBC Shield Waste Disposal Motor Oil DisposalStorage Preparing the Fuel SystemPreparing the Engine General Storage InformationTroubleshooting Problem Possible Cause Corrective ActionTroubleshooting Exmark Commercial Turf Equipment Page See EXMARK’S Complete Line of Accessories and Options

4500-686 Rev. B specifications

The Exmark 4500-686 Rev. B is a cutting-edge commercial mower that embodies the perfect blend of performance, durability, and user-friendly features. Designed for professional landscapers and grounds maintenance professionals, this mower is built to handle the rigorous demands of large properties and commercial applications.

One of the standout features of the Exmark 4500-686 Rev. B is its powerful engine. Equipped with a robust EFI (Electronic Fuel Injection) engine, it delivers exceptional power and fuel efficiency. The engine's advanced technology allows for quicker starts and better throttle response, ensuring that users can tackle their mowing tasks without any delays. This efficiency translates into reduced operating costs and less time spent refueling.

Another notable technology integrated into this mower is the UltraCut deck system. The 4500-686 Rev. B features a precision-engineered cutting deck that provides a superior cutting performance, offering an even and professional finish to any lawn. The design promotes optimal airflow beneath the deck, resulting in better grass lift and dispersion, which reduces clumping and enhances the quality of the cut. Additionally, the cutting height is easily adjustable, allowing operators to customize their mowing according to specific turf conditions.

User comfort is a paramount consideration in the design of the Exmark 4500-686 Rev. B. The mower is equipped with an ergonomic seat and controls that minimize operator fatigue during extended use. The full-suspension seat absorbs shocks and vibrations, while the easy-to-use controls allow for intuitive operation, ensuring that mowing is a seamless and productive experience.

Durability is another key characteristic of the 4500-686 Rev. B. Built with high-quality materials and components, this mower is designed to withstand the wear and tear of everyday use. The frame is reinforced to provide added strength, while the corrosion-resistant coating ensures that it maintains its appearance and functionality over time.

In conclusion, the Exmark 4500-686 Rev. B is an exceptional choice for anyone looking for a reliable and efficient commercial mower. With its powerful EFI engine, advanced cutting technologies, emphasis on operator comfort, and rugged build quality, this mower offers unmatched performance in the field. Whether for professional landscaping or maintaining large properties, the Exmark 4500-686 Rev. B is engineered to meet the demands of any mowing job.