Exmark 4500-686 Rev. B manual Authorized Service Dealer

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Operation

2.Remove the grass bag if it is on the mower.

3.Raise the discharge door and insert the mulch plug into the discharge opening. The lip on the plug will snap into the mower housing.

4.Take a half sheet of newspaper and crumple it into ball small enough to go under the deck (about 3 inches or 7.6 cm in diameter) as shown in Figure 15.

Figure 14

1.

Mulch plug

3.

Lip

2.

Discharge door

4.

Mower housing

4.Lower the discharge door.

Removing the Mulch Plug:

Note: When grass is thick and lush, clippings may collect on and around the discharge tunnel plug. This may make it difficult to remove the plug. Clean the plug thoroughly after each use.

1.To remove the mulch plug, raise the discharge door and pull the mulch plug out of the discharge tunnel.

2.Lower the discharge door.

Checking the Blade Brake Clutch (Blade Brake Clutch Units Only)

Check the Blade Brake Clutch (BBC) system before each use to ensure that it is operating properly.

Normal Test:

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

2.Move the lawn mower onto a paved surface in a non-windy area.

3.Set all four wheels to the 2 1/2 inches (6.4 cm) cutting height (see Figure 16 and Figure 17)

Figure 15

1. Crumpled newspaper

2. 5 inches (12.7 cm)

5.Place the ball of newspaper 5 inches (12.7 cm) in front of the lawn mower.

6.Start the engine.

7.Push the blade control lock lever forward to release the blade control bail (Figure 4).

8.Squeeze the blade control bail against the handle. blade should engage.

9.Release the blade control bail. You should hear a “bang.” The blade should stop in three seconds. The blade control lock lever should reset to lock the blade control bail.

10.Immediately push the lawn mower over the newspaper ball.

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

12.Walk around the lawn mower to check for the newspaper ball. If the ball did not go under the deck, repeat steps 6 through 11.

13.Pull the lawn mower away from the newspaper. If the newspaper ball unravels or is shredded, the blade has not properly stopped, resulting in an unsafe operating condition. Contact an

Authorized Service Dealer.

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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 OnlyHandle Adjustment Pre-StartOperating 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 Clean Grass Build-Up Under Deck Cleaning the Discharge Tunnel and PlugCleaning 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.