Exmark 4500-686 Rev. B manual Recommended Maintenance Schedules

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Maintenance

Maintenance

Note: Determine the left and right sides of the machine from the normal operating position.

WARNING

If you leave the wire on the spark plug, someone could accidentally start the engine. Accidental starting of the engine could seriously injure you or other bystanders.

Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so that it does not accidentally contact the spark plug.

WARNING

Tipping the lawn mower may cause the fuel to leak from the carburetor or the fuel tank. Gasoline is extremely flammable, highly explosive, and under certain conditions, can cause personal injury or property damage.

Avoid fuel spills by running the engine dry or by removing the gasoline with a hand pump; never siphon.

WARNING

The engine can become very hot. Touching a hot engine can cause severe burns.

Allow the engine to cool completely before service or making repairs around the engine area.

Recommended Maintenance Schedule(s)

Maintenance Service

Maintenance Procedure

Interval

 

 

 

After the first 5 hours

• Change the engine oil.

 

 

 

• Check the engine oil level.

 

• Check the stopping time of the blade brake. The blade must stop within 3 seconds of

 

releasing the bail; if it does not, contact an Authorized Service Dealer for repair.

Before each use or daily

• Check the mower blade and the engine mounting fasteners.

• Check for loose hardware.

 

 

• Check the Blade Brake Clutch Bail operation (Blade Brake Clutch Units Only)

 

• Clean the grass build-up from under the deck.

 

• Clean the discharge tunnel and plug.

 

 

 

• Clean the foam pre-cleaner (Kawasaki Units).

Every 25 hours

• Clean the cover, base, foam and paper elements (ECSHN21 Units).

 

• Clean the cover, base, foam and paper elements (ECXHNBBC21 and ECXHN21 Units).

 

 

Every 40 hours

• Check the condition of the belt(s).

 

 

 

• Change the engine oil. (May need more often under severe conditions.)

 

• Check for leaks in the fuel systems and /or deteriorating fuel hose.

Every 50 hours

• Clean under the belt cover (self-propelled units only).

 

• Clean the blade brake clutch shield.

 

• Clean under the cover plate (Non-BBC Units).

 

 

 

• Change the oil filter (ECXKA21 and ECXKABBC21 Units).

Every 100 hours

• Check the spark plugs.

 

• Clean the fuel filter element.

 

 

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Contents Commercial California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingSafety Operation Maintenance and Storage Slope OperationSafety and Instructional Decals 109-9317 116-1922 116-2685 117-2718 116-1900 116-2737 Model Numbers SpecificationsDimensions SystemsControls Product OverviewOperation Blade Control BailChoke Control ECXHNBBC21 Engine Stop SwitchThrottle-Choke Lever ECXHN21 Blade Control Lock Lever Blade Brake Clutch Units OnlyPre-Start Handle AdjustmentOperating Instructions 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 Check Condition Of Belt Self-Propelled Units Only Emptying the Fuel Tank and Cleaning the Fuel FilterChange Oil Filter ECXKA21 and ECXKABBC21 Check Spark PlugsAdjustments Adjusting the Self-Propel Drive Self-Propelled Units OnlyAdjustment of drive cable nuts Cleaning the Discharge Tunnel and Plug Clean Grass Build-Up Under DeckCleaning Under the Belt Cover Self-Propelled Units Only Screws BBC Shield Waste Disposal Motor Oil DisposalPreparing the Engine StoragePreparing the Fuel System 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.