Exmark 4500-686 Rev. B manual Stopping the Engine, Using the Mulch Plug

Page 17

Operation

5.Pull the starter handle lightly until you feel resistance, then pull it sharply. Allow the rope to return slowly.

6.For ECXHN21 Units: Gradually push in the choke control as the engine warms up.

Stopping the Engine

1.Bring the unit to a full stop.

For units without a Blade Brake Clutch: Release the blade control bail. Both the engine and the blade should stop within three seconds.

For units with a Blade Brake Clutch: Press the switch to “STOP” to kill the engine (see Figure 5).

Note: If the blade does not stop within 3 seconds after releasing the blade control bail, contact an Authorized Service Dealer.

2.Close the fuel shut-off valve, if equipped, when the machine will not be in use for a few days, when transporting, or when the unit is parked inside a building.

Note: The mower comes with freewheeling clutches which make it easier to pull the mower rearward. To disengage the clutches, you may need to push the mower forward one inch (2.5 cm) or more after you release the self-propel drive bail.

Operating the Blade Control Bail (Units Without Blade Brake Clutch)

1.Squeeze the blade control bail against the handle.

2.Start the engine.

3.When the blade control bail is squeezed against the handle, the blade should engage.

4.Release the blade control bail. Both the engine and the blade should stop.

Operating the Blade Control Lever (Blade Brake Clutch Units Only)

1.Start the engine.

2.Push and hold the blade control lock lever forward to release the blade control bail (Figure 13).

Operating the Self-Propel Drive (Self-Propelled Units Only)

The lawn mower is variable speed, the more you squeeze the drive bail the faster the machine travels.

1.Start the engine.

2.Squeeze the drive bail against the handle (see Figure 4).

Note: You can vary the ground speed by increasing or decreasing the distance between the ground speed control bail and the handle. Lower the control bail to decrease the ground speed when you are making a turn or if the lawn mower is moving too fast for you. If you lower the control bail too far the lawn mower stops self-propelling. Squeeze the ground speed control bail closer to the handle to increase the ground speed. When you hold the ground speed control bail tight against the handle, the lawn mower self-propels at the maximum ground speed. Release the drive bail to stop moving when you use the lawn mower for trimming or whenever you leave the lawn mower.

3.To disengage the self-propel drive, release the drive bail.

Figure 13

1.

Blade control lock lever

4.

Push forward

2.

Locked position

5.

Unlocked position

3.

Blade control bail

6.

Squeeze against handle

3.Squeeze the blade control bail against the handle and release the blade control lock lever; the blade should engage.

4.Release the blade control bail to disengage the blade. The blade control lock lever will reset to lock the blade control bail.

Using the Mulch Plug

Occasionally you may wish to use the mulch plug to mulch the grass and leaf clippings back into the lawn.

Installing the Mulch Plug:

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

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Contents Commercial California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety Operation Slope Operation Maintenance and StorageSafety and Instructional Decals 109-9317 116-1922 116-2685 117-2718 116-1900 116-2737 Dimensions SpecificationsModel Numbers SystemsOperation Product OverviewControls Blade Control BailThrottle-Choke Lever ECXHN21 Engine Stop SwitchChoke Control ECXHNBBC21 Blade Control Lock Lever Blade Brake Clutch Units OnlyOperating Instructions Handle AdjustmentPre-Start Starting the Engine Open the Fuel Shut-Off ValveStopping the Engine Using the Mulch PlugAuthorized Service Dealer Adjusting the Cutting Height Test Using the Grass BagUsing the Grass Bag Operating Tips Recommended Maintenance Schedules MaintenanceChecking the Blade Brake Clutch Blade Brake Clutch Only Check Engine Oil LevelCheck the Mower Blade Emptying the Fuel Tank and Cleaning the Fuel Filter sectionCheck for Loose Hardware Service Air Filter ECSHN21 Units Service Air Filter Kawasaki UnitsDamaged or excessively dirty Service Air Filter ECXHNBBC21 and ECXHN21 UnitsChange Engine Oil Change Oil Filter ECXKA21 and ECXKABBC21 Emptying the Fuel Tank and Cleaning the Fuel FilterCheck Condition Of Belt Self-Propelled Units Only Check Spark PlugsAdjusting the Self-Propel Drive Self-Propelled Units Only AdjustmentsAdjustment 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 Motor Oil Disposal Waste DisposalPreparing the Fuel System StoragePreparing the Engine General Storage InformationProblem Possible Cause Corrective Action TroubleshootingTroubleshooting 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.